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58 results on '"Djawotho, P."'

1. Measurements of dihadron correlations relative to the event plane in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV

Author: Agakishiev, H., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sanchez, M. Calderon de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Feng, A., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geromitsos, A., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hofmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Naglis, M., Nandi, B. K., Nayak, T. K., Netrakanti, P. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Ohlson, Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tribedy, Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), and STAR
Subjects: heavy ion: scattering, Nuclear Theory, nucl-th, transverse momentum: high, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, transverse momentum: momentum spectrum, dihadron: angular correlation, Nuclear Theory (nucl-th), 25.75.Dw, path length: dependence, correlation function, Nuclear Experiment (nucl-ex), Nuclear Experiment, impact parameter: dependence, Brookhaven RHIC Coll, STAR, 25.75.-q, correlation: long-range, gold, flow: anisotropy, charged particle: trigger, nuclear matter, 200 GeV-cms/nucleon, jet: quenching
Abstract: Dihadron azimuthal correlations containing a high transverse momentum ($p_T$) trigger particle are sensitive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium, i.e. jet-quenching. Previous measurements revealed a strong modification to dihadron azimuthal correlations in Au+Au collisions with respect to p+p and d+Au collisions. The modification increases with the collision centrality, suggesting a path-length or energy density dependence to the jet-quenching effect. This paper reports STAR measurements of dihadron azimuthal correlations in mid-central (20-60%) Au+Au collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV as a function of the trigger particle's azimuthal angle relative to the event plane, $\phi_s=|\phi_t-\psi_{\rm EP}|$. The azimuthal correlation is studied as a function of both the trigger and associated particle $p_T$. The subtractions of the combinatorial background and anisotropic flow, assuming Zero Yield At Minimum (ZYAM), are described. The correlation results are first discussed with subtraction of the even harmonic (elliptic and quadrangular) flow backgrounds. The away-side correlation is strongly modified, and the modification varies with $\phi_s$, with a double-peak structure for out-of-plane trigger particles. The near-side ridge (long range pseudo-rapidity $\Delta\eta$ correlation) appears to drop with increasing $\phi_s$ while the jet-like component remains approximately constant. The correlation functions are further studied with subtraction of odd harmonic triangular flow background arising from fluctuations. It is found that the triangular flow, while responsible for the majority of the amplitudes, is not sufficient to explain the $\phi_s$-dependence of the ridge or the away-side double-peak structure. ..., Comment: 54 pages, 40 figures, 6 tables. As published
Published: 2021

2. Charged-to-neutral correlation at forward rapidity in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV

Author: STAR Collaboration, Abdelwahab, N. M., Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Averichev, G. S., Banerjee, A., Beavis, D. R., Bellwied, R., Bhasin, A., Bhati, A. K., Bhattarai, P., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Campbell, J. M., Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chwastowski, J., Codrington, M. J. M., Contin, G., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., de Souza, R. Derradi, di Ruzza, B., Didenko, L., Dilks, C., Ding, F., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Eyser, O., Fatemi, R., Fazio, S., Fedorisin, J., Filip, P., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Girard, M., Gliske, S., Greiner, L., Grosnick, D., Gunarathne, D. S., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huang, X., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jang, H., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Khan, Z. H., Kikola, D. P., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Kosarzewski, L. K., Kotchenda, L., Kraishan, A. F., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Kycia, R. A., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Minaev, N. G., Mioduszewski, S., Mohanty, B., Mondal, M. M., Morozov, D. A., Mustafa, M. K., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nigmatkulov, G., Nogach, L. V., Noh, S. Y., Novak, J., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Olvitt Jr., D. L., Page, B. S., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Pile, P., Planinic, M., Pluta, J., Poljak, N., Poniatowska, K., Porter, J., Poskanzer, A. M., Pruthi, N. K., Przybycien, M., Putschke, J., Qiu, H., Quintero, A., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Rusnakova, O., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, W. B., Schmitz, N., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shanmuganathan, P. V., Shao, M., Sharma, B., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simko, M., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Sumbera, M., Sun, X., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., Szelezniak, M. A., Takahashi, J., Tang, A. H., Tang, Z., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vandenbroucke, M., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, J., Xu, N., Xu, Q. H., Xu, Y., Xu, Z., Yan, W., Yang, C., Yang, Y., Ye, Z., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Yu, N., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, J. L., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Zyzak, M., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: Event-by-event fluctuations of the ratio of inclusive charged to photon multiplicities at forward rapidity in Au+Au collision at $\sqrt{s_{NN}}$=200 GeV have been studied. Dominant contribution to such fluctuations is expected to come from correlated production of charged and neutral pions. We search for evidences of dynamical fluctuations of different physical origins. Observables constructed out of moments of multiplicities are used as measures of fluctuations. Mixed events and model calculations are used as baselines. Results are compared to the dynamical net-charge fluctuations measured in the same acceptance. A non-zero statistically significant signal of dynamical fluctuations is observed in excess to the model prediction when charged particles and photons are measured in the same acceptance. We find that, unlike dynamical net-charge fluctuation, charge-neutral fluctuation is not dominated by correlation due to particle decay. Results are compared to the expectations based on the generic production mechanism of pions due to isospin symmetry, for which no significant (, 14 pages, 6 figures
Published: 2015

3. Dielectron Azimuthal Anisotropy at mid-rapidity in Au+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV

Author: Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Averichev, G. S., Banerjee, A., Beavis, D. R., Bellwied, R., Bhasin, A., Bhati, A. K., Bhattarai, P., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Calderón De La Barca Sánchez, M., Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, Lin, Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chwastowski, J., Codrington, M. J. M., Contin, G., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Davila Leyva, A., De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., Derradi De Souza, R., Dhamija, S., Di Ruzza, B., Didenko, L., Dilks, C., Ding, F., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Eyser, O., Fatemi, R., Fazio, S., Fedorisin, J., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Girard, M., Gliske, S., Greiner, L., Grosnick, D., Gunarathne, D. S., Guo, Y., Gupta, Anupam, Gupta, S., Guryn, W., Haag, B., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huang, X., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jang, H., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Khan, Z. H., Kikola, D. P., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Kotchenda, L., Kraishan, A. F., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Kycia, R. A., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., LeVine, M. J., Li, C., Li, W., Li, Xiaojian, Li, Y., Li, Z. M., Lisa, M. A., Liu, Franklin, Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, X., Ma, G. L., Ma, Y. G., Madagodagettige Don, D. M. M. D., Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Mcdonald, D., McShane, T. S., Minaev, N. G., Mioduszewski, S., Mohanty, B., Mondal, M. M., Morozov, D. A., Mustafa, M. K., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nigmatkulov, G., Nogach, L. V., Noh, S. Y., Novak, J., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Olvitt, D. L., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Poljak, N., Porter, J., Poskanzer, A. M., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Quintero, A., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, Arnaud, Ruan, L., Rusnak, J., Rusnakova, O., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, W. B., Schmitz, N., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shanmuganathan, P. V., Shao, M., Sharma, B., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Sumbera, M., Sun, X., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., Szelezniak, M. A., Takahashi, J., Tang, A. H., Tang, Z., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., Van Nieuwenhuizen, G., Vandenbroucke, M., Vanfossen, J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Vossen, A., Wada, M., Wang, F., Wang, Gang, Wang, H., Wang, J. S., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, J., Xu, N., Xu, Q. H., Xu, Y., Xu, Z., Yan, W., Yang, C., Yang, Y., Ye, Z., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Yu, N., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, J. L., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Zyzak, M., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Physics::Atomic Physics, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We report on the first measurement of the azimuthal anisotropy ($v_2$) of dielectrons ($e^{+}e^{-}$ pairs) at mid-rapidity from $\sqrt{s_{_{NN}}} = 200$ GeV Au+Au collisions with the STAR detector at RHIC, presented as a function of transverse momentum ($p_T$) for different invariant-mass regions. In the mass region $M_{ee}\!, Comment: 15 pages, 22 figures, published at PRC
Published: 2014

4. Measurement of Charge Multiplicity Asymmetry Correlations in High Energy Nucleus-Nucleus Collisions at 200 GeV

Author: STAR Collaboration, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Kizka, V., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Poljak, N., Porter, J., Powell, C. B., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Vossen, A., Wada, M., Wang, F., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Zyzak, M., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Nuclear Theory (nucl-th), Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: A study is reported of the same- and opposite-sign charge-dependent azimuthal correlations with respect to the event plane in Au+Au collisions at 200 GeV. The charge multiplicity asymmetries between the up/down and left/right hemispheres relative to the event plane are utilized. The contributions from statistical fluctuations and detector effects were subtracted from the (co-)variance of the observed charge multiplicity asymmetries. In the mid- to most-central collisions, the same- (opposite-) sign pairs are preferentially emitted in back-to-back (aligned on the same-side) directions. The charge separation across the event plane, measured by the difference, $\Delta$, between the like- and unlike-sign up/down $-$ left/right correlations, is largest near the event plane. The difference is found to be proportional to the event-by-event final-state particle ellipticity (via the observed second-order harmonic $v^{\rm obs}_{2}$), where $\Delta=(1.3\pm1.4({\rm stat})^{+4.0}_{-1.0}({\rm syst}))\times10^{-5}+(3.2\pm0.2({\rm stat})^{+0.4}_{-0.3}({\rm syst}))\times10^{-3}v^{\rm obs}_{2}$ for 20-40% Au+Au collisions. The implications for the proposed chiral magnetic effect are discussed., Comment: 27 pages, 25 figures, 2 tables
Published: 2014

5. Fluctuations of charge separation perpendicular to the event plane and local parity violation in sqrt(sNN)=200 GeV Au+Au collisions at RHIC

Author: Collaboration, STAR, Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Alekseev, I, Alford, J, Anson, CD, Aparin, A, Arkhipkin, D, Aschenauer, E, Averichev, GS, Balewski, J, Banerjee, A, Barnovska, Z, Beavis, DR, Bellwied, R, Betancourt, MJ, Betts, RR, Bhasin, A, Bhati, AK, Bhattarai, Bichsel, H, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Borowski, W, Bouchet, J, Brandin, AV, Brovko, SG, Bruna, E, Bültmann, S, Bunzarov, I, Burton, TP, Butterworth, J, Caines, H, Sánchez, MCDLB, Cebra, D, Cendejas, R, Cervantes, MC, Chaloupka, P, Chang, Z, Chattopadhyay, S, Chen, HF, Chen, JH, Chen, JY, Chen, L, Cheng, J, Cherney, M, Chikanian, A, Christie, W, Chung, P, Chwastowski, J, Codrington, MJM, Corliss, R, Cramer, JG, Crawford, HJ, Cui, X, Das, S, Leyva, AD, Silva, LCD, Debbe, RR, Dedovich, TG, Deng, J, Souza, RDD, Dhamija, S, Ruzza, BD, Didenko, L, Dilks, Ding, F, Dion, A, Djawotho, P, Dong, X, Drachenberg, JL, Draper, JE, Du, CM, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elnimr, M, Engelage, J, Engle, KS, Eppley, G, Eun, L, Evdokimov, O, Fatemi, R, Fazio, S, Fedorisin, J, Fersch, RG, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Gagliardi, CA, Gangadharan, DR, Garand, D, Geurts, F, Gibson, A, Gliske, S, Grebenyuk, OG, Grosnick, D, Guo, Y, Gupta, A, Gupta, S, Guryn, W, Haag, B, Hajkova, O, Hamed, A, Han, L-X, Haque, R, Harris, JW, Hays-Wehle, JP, Heppelmann, S, Hirsch, A, Hoffmann, GW, Hofman, DJ, Horvat, S, Huang, B, Huang, HZ, Huck, P, Humanic, TJ, Igo, G, Jacobs, WW, Jena, C, Judd, EG, Kabana, S, Kang, K, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Kesich, A, Kikola, DP, Kiryluk, J, Kisel, I, Kisiel, A, Koetke, DD, Kollegger, T, Konzer, J, Koralt, I, Korsch, W, Kotchenda, L, Kravtsov, P, Krueger, K, Kulakov, I, Kumar, L, Kycia, RA, Lamont, MAC, Landgraf, JM, Landry, KD, LaPointe, S, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Leight, W, LeVine, MJ, Li, C, Li, W, Li, X, Li, Y, Li, ZM, Lima, LM, Lisa, MA, Liu, F, Ljubicic, T, Llope, WJ, Longacre, RS, Luo, X, Ma, GL, Ma, YG, Don, DMMDM, Mahapatra, DP, Majka, R, Margetis, S, Markert, C, Masui, H, Matis, HS, McDonald, D, McShane, TS, Mioduszewski, S, Mitrovski, MK, Mohammed, Y, Mohanty, B, Mondal, MM, Munhoz, MG, Mustafa, MK, Naglis, M, Nandi, BK, Nasim, M, Nayak, TK, Nelson, JM, Nogach, LV, Novak, J, Odyniec, G, Ogawa, A, Oh, K, Ohlson, A, Okorokov, V, Oldag, EW, Oliveira, RAN, Olson, D, Pachr, M, Page, BS, Pal, SK, Pan, YX, Pandit, Y, Panebratsev, Y, Pawlak, T, Pawlik, B, Pei, H, Perkins, C, Peryt, W, Pile, P, Planinic, M, Pluta, J, Plyku, D, Poljak, N, Porter, J, Poskanzer, AM, Powell, CB, Pruneau, C, Pruthi, NK, Przybycien, M, Pujahari, PR, Putschke, J, Qiu, H, Ramachandran, S, Raniwala, R, Raniwala, S, Ray, RL, Riley, CK, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Ross, JF, Roy, A, Ruan, L, Rusnak, J, Sahoo, NR, Sahu, PK, Sakrejda, I, Salur, S, Sandacz, A, Sandweiss, J, Sangaline, E, Sarkar, A, Schambach, J, Scharenberg, RP, Schmah, AM, Schmidke, B, Schmitz, N, Schuster, TR, Seger, J, Seyboth, P, Shah, N, Shahaliev, E, Shao, M, Sharma, B, Sharma, M, Shen, WQ, Shi, SS, Shou, QY, Sichtermann, EP, Singaraju, RN, Skoby, MJ, Smirnov, D, Smirnov, N, Solanki, D, Sorensen, P, deSouza, UG, Spinka, HM, Srivastava, B, Stanislaus, TDS, Stevens, JR, Stock, R, Strikhanov, M, Stringfellow, B, Suaide, AAP, Suarez, MC, Sumbera, M, Sun, XM, Sun, Y, Sun, Z, Surrow, B, Svirida, DN, Symons, TJM, Toledo, ASD, Takahashi, J, Tang, AH, Tang, Z, Tarini, LH, Tarnowsky, T, Thomas, JH, Timmins, AR, Tlusty, D, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Trzeciak, BA, Tsai, OD, Turnau, J, Ullrich, T, Underwood, DG, Buren, GV, Nieuwenhuizen, GV, J A Vanfossen, J, Varma, R, Vasconcelos, GMS, Vertesi, R, Videbæk, F, Viyogi, YP, Vokal, S, Voloshin, SA, Vossen, A, Wada, M, Walker, M, Wang, F, Wang, G, Wang, H, Wang, JS, Wang, Q, Wang, XL, Wang, Y, Webb, G, Webb, JC, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, YF, Xiao, Z, Xie, W, Xin, K, Xu, H, Xu, N, Xu, QH, Xu, W, Xu, Y, Xu, Z, Yan, Yang, C, Yang, Y, Yepes, P, Yi, L, Yip, K, Yoo, I-K, Zawisza, Y, Zbroszczyk, H, Zha, W, Zhang, JB, Zhang, S, Zhang, XP, Zhang, Y, Zhang, ZP, Zhao, F, Zhao, J, Zhong, C, Zhu, X, Zhu, YH, Zoulkarneeva, Y, Zyzak, M, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, Nuclear Experiment
Abstract: Previous experimental results based on data (15 million events) collected by the STAR detector at RHIC suggest event-by-event charge separation fluctuations perpendicular to the event plane in non-central heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high statistics 200 GeV Au+Au collisions data set (57 million events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible P-even background in same and opposite charge correlations, and find that the P-even background may largely be explained by momentum conservation and collective motion., Comment: 10 pages, 9 figures
Published: 2013

6. Single Spin Asymmetry $A_N$ in Polarized Proton-Proton Elastic Scattering at $\sqrt{s}=200$ GeV

Author: Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón De La Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, Lin, Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., De Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gibson, A., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, Xiaojian, Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, Franklin, Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y.G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., Mcdonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., DeSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., De Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., Van Nieuwenhuizen, G., Vanfossen, J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, Gang, Wang, H., Wang, J. S., Wang, Qiang, Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Zyzak, M., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: High Energy Physics - Experiment (hep-ex), Nuclear Theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report a high precision measurement of the transverse single spin asymmetry $A_N$ at the center of mass energy $\sqrt{s}=200$ GeV in elastic proton-proton scattering by the STAR experiment at RHIC. The $A_N$ was measured in the four-momentum transfer squared $t$ range $0.003 \leqslant |t| \leqslant 0.035$ $\GeVcSq$, the region of a significant interference between the electromagnetic and hadronic scattering amplitudes. The measured values of $A_N$ and its $t$-dependence are consistent with a vanishing hadronic spin-flip amplitude, thus providing strong constraints on the ratio of the single spin-flip to the non-flip amplitudes. Since the hadronic amplitude is dominated by the Pomeron amplitude at this $\sqrt{s}$, we conclude that this measurement addresses the question about the presence of a hadronic spin flip due to the Pomeron exchange in polarized proton-proton elastic scattering., 12 pages, 6 figures
Published: 2013

7. Elliptic flow of identified hadrons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7--62.4 GeV

Author: Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bhattarai, Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bültmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., di Ruzza, B., Didenko, L., Dilks, Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Gliske, S., Grebenyuk, O. G., Grosnick, D., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Haque, R., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jena, C., Judd, E. G., Kabana, S., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Yan, Yang, C., Yang, Y., Yepes, P., Yi, L., Yip, K., Yoo, I-K., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Zyzak, M., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: see paper for full list of authors; Measurements of the elliptic flow, $v_{2}$, of identified hadrons ($\pi^{\pm}$, $K^{\pm}$, $K_{s}^{0}$, $p$, $\bar{p}$, $\phi$, $\Lambda$, $\bar{\Lambda}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, $\bar{\Omega}^{+}$) in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 19.6, 27, 39 and 62.4 GeV are presented. The measurements were done at mid-rapidity using the Time Projection Chamber and the Time-of-Flight detectors of the STAR experiment during the Beam Energy Scan program at RHIC. A significant difference in the $v_{2}$ values for particles and the corresponding anti-particles was observed at all transverse momenta for the first time. The difference increases with decreasing center-of-mass energy, $\sqrt{s_{NN}}$ (or increasing baryon chemical potential, $\mu_{B}$) and is larger for the baryons as compared to the mesons. This implies that particles and anti-particles are no longer consistent with the universal number-of-constituent quark (NCQ) scaling of $v_{2}$ that was observed at $\sqrt{s_{NN}}=$ 200 GeV. However, for the group of particles NCQ scaling at $(m_{T}-m_{0})/n_{q}>$ 0.4 GeV/$c^{2}$ is not violated within $\pm$10%. The $v_{2}$ values for $\phi$ mesons at 7.7 and 11.5 GeV are approximately two standard deviations from the trend defined by the other hadrons at the highest measured $p_{T}$ values.
Published: 2013

8. Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV

Author: STAR Collaboration, Agakishiev, H., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geromitsos, A., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jones, P. G., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Naglis, M., Nandi, B. K., Nayak, T. K., Netrakanti, P. K., Nelson, J. M., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tribedy, P., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbæk, F., Viyogi, Y. P., Vokal, S., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and STAR
Subjects: Quantitative Biology::Neurons and Cognition, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: see paper for full list of authors; We report new STAR measurements of mid-rapidity yields for the $\Lambda$, $\bar{\Lambda}$, $K^{0}_{S}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, $\bar{\Omega}^{+}$ particles in Cu+Cu collisions at \sNN{200}, and mid-rapidity yields for the $\Lambda$, $\bar{\Lambda}$, $K^{0}_{S}$ particles in Au+Au at \sNN{200}. We show that at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parameterization based on the fraction of participants that undergo multiple collisions.
Published: 2012

9. System size and energy dependence of near-side di-hadron correlations

Author: STAR Collaboration, Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bombara, M., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., de Souza, R. Derradi, Dhamija, S., Didenko, L., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gaillard, L., Gangadharan, D. R., Geurts, F., Ghosh, P., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Minaev, N. G., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nattrass, C., Nasim, Md., Nayak, T. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbæ, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Ridge, Delta, D+Au Collisions, Nuclear and High Energy Physics, system, energy, dihadron, correlations, STAR, Astrophysics::High Energy Astrophysical Phenomena, Hadron, P+P, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, Au+Au Collisions, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Nuclear Collisions, Physics, 010308 nuclear & particles physics, Spectra, NATURAL SCIENCES. Physics, 3. Good health, Azimuth, PRIRODNE ZNANOSTI. Fizika, Strange matter, Deuterium, Pseudorapidity, Transverse momentum, High Energy Physics::Experiment, Transverse-Momentum Distributions, Atomic physics, Relativistic Heavy Ion Collider
Abstract: Two-particle azimuthal ($\Delta\phi$) and pseudorapidity ($\Delta\eta$) correlations using a trigger particle with large transverse momentum ($p_T$) in $d$+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{{NN}}}$ =\xspace 62.4 GeV and 200~GeV from the STAR experiment at RHIC are presented. The \ns correlation is separated into a jet-like component, narrow in both $\Delta\phi$ and $\Delta\eta$, and the ridge, narrow in $\Delta\phi$ but broad in $\Delta\eta$. Both components are studied as a function of collision centrality, and the jet-like correlation is studied as a function of the trigger and associated $p_T$. The behavior of the jet-like component is remarkably consistent for different collision systems, suggesting it is produced by fragmentation. The width of the jet-like correlation is found to increase with the system size. The ridge, previously observed in Au+Au collisions at $\sqrt{s_{{NN}}}$ = 200 GeV, is also found in Cu+Cu collisions and in collisions at $\sqrt{s_{{NN}}}$ =\xspace 62.4 GeV, but is found to be substantially smaller at $\sqrt{s_{{NN}}}$ =\xspace 62.4 GeV than at $\sqrt{s_{{NN}}}$ = 200 GeV for the same average number of participants ($ \langle N_{\mathrm{part}}\rangle$). Measurements of the ridge are compared to models., Comment: 17 pages, 14 figures, submitted to Phys. Rev. C
Published: 2012

10. Measurement of the $W \to e \nu$ and $Z/\gamma^* \to e^+e^-$ Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at $\sqrt{s}$ = 500 GeV

Author: STAR Collaboration, Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Banerjee, Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pan, Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report measurements of the charge-separated $W^{+(-)} \to e^{+(-)} + \nu_e(\bar{\nu}_e)$ and $Z/\gamma^* \to e^+e^-$ production cross sections at mid-rapidity in proton-proton collisions at $\sqrt{s}$ = 500 GeV. These results are based on 13.2 pb$^{-1}$ of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the $e \nu$ channel were measured to be $\sigma(pp \to W^+ X) \cdot BR(W^+ \to e^+ \nu_e)$ = 117.3 \pm 5.9(stat) \pm 6.2(syst) \pm 15.2(lumi) pb, and $\sigma(pp \to W^- X) \cdot BR(W^- \to e^- \bar{\nu}_e)$ = 43.3 \pm 4.6(stat) \pm 3.4(syst) \pm 5.6(lumi) pb. For $Z/\gamma^*$ production, $\sigma(pp \to Z/\gamma^* X) \cdot BR(Z/\gamma^* \to e^+ e^-)$ = 7.7 \pm 2.1(stat) $^{+0.5}_{-0.9}$(syst) \pm 1.0(lumi) pb for di-lepton invariant masses $m_{e^+e^-}$ between 70 and 110 GeV/$c^2$. First measurements of the W cross section ratio, $\sigma(pp \to W^+ X) / \sigma(pp \to W^- X)$, at $\sqrt{s}$ = 500 GeV are also reported. Theoretical predictions, calculated using recent parton distribution functions, are found to agree with the measured cross sections., Comment: 14 pages, 12 figures, submitted to Physical Review D
Published: 2012

11. Directed and elliptic flow of charged particles in Cu+Cu collisions at $\sqrt{\bm {s_{NN}}} =$ 22.4 GeV

Author: Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lima, 1 L. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nayak, T. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schaub, J., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Quantitative Biology::Neurons and Cognition, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: This paper reports results for directed flow $v_{1}$ and elliptic flow $v_{2}$ of charged particles in Cu+Cu collisions at $\sqrt{s_{NN}}=$ 22.4 GeV at the Relativistic Heavy Ion Collider. The measurements are for the 0-60% most central collisions, using charged particles observed in the STAR detector. Our measurements extend to 22.4 GeV Cu+Cu collisions the prior observation that $v_1$ is independent of the system size at 62.4 and 200 GeV, and also extend the scaling of $v_1$ with $\eta/y_{\rm beam}$ to this system. The measured $v_2(p_T)$ in Cu+Cu collisions is similar for $\sqrt{s_{NN}} = 22.4-200$ GeV. We also report a comparison with results from transport model (UrQMD and AMPT) calculations. The model results do not agree quantitatively with the measured $v_1(\eta), v_2(p_T)$ and $v_2(\eta)$., Comment: 10 pages,9 figures: Introduction part of the paper is expanded, Fig 9 is changed slightly, more discussion on summary
Published: 2012

12. Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at $\sqrt{s_{\rm NN}}$ = 62 and 200 GeV

Author: STAR Collaboration, Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O. G., Grosnick, D., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schaub, J., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Solanki, D., Sorensen, P., de Souza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We present two-dimensional (2D) two-particle angular correlations on relative pseudorapidity $\eta$ and azimuth $\phi$ for charged particles from Au-Au collisions at $\sqrt{s_{\rm NN}} = 62$ and 200 GeV with transverse momentum $p_t \geq 0.15$ GeV/$c$, $|\eta| \leq 1$ and $2\pi$ azimuth. Observed correlations include a {same-side} (relative azimuth $< \pi/2$) 2D peak, a closely-related away-side azimuth dipole, and an azimuth quadrupole conventionally associated with elliptic flow. The same-side 2D peak and away-side dipole are explained by semihard parton scattering and fragmentation (minijets) in proton-proton and peripheral nucleus-nucleus collisions. Those structures follow N-N binary-collision scaling in Au-Au collisions until mid-centrality where a transition to a qualitatively different centrality trend occurs within a small centrality interval. Above the transition point the number of same-side and away-side correlated pairs increases rapidly {relative to} binary-collision scaling, the $\eta$ width of the same-side 2D peak also increases rapidly ($\eta$ elongation) and the $\phi$ width actually decreases significantly. Those centrality trends are more remarkable when contrasted with expectations of jet quenching in a dense medium. Observed centrality trends are compared to {\sc hijing} predictions and to the expected trends for semihard parton scattering and fragmentation in a thermalized opaque medium. We are unable to reconcile a semihard parton scattering and fragmentation origin for the observed correlation structure and centrality trends with heavy ion collision scenarios which invoke rapid parton thermalization. On the other hand, if the collision system is effectively opaque to few-GeV partons the observations reported here would be inconsistent with a minijet picture., Comment: 26 pages, 8 figures, 2 tables
Published: 2012

13. Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized p+p collisions at sqrt{s}=200 GeV

Author: The STAR Collaboration, Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kowalik, K., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Millane, J., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Sakuma, T., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Sarsour, M., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We report STAR measurements of the longitudinal double-spin asymmetry A_LL, the transverse single-spin asymmetry A_N, and the transverse double-spin asymmetries A_Sigma and A_TT for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt{s} = 200 GeV. The data represent integrated luminosities of 7.6 /pb with longitudinal polarization and 1.8 /pb with transverse polarization, with 50-55% beam polarization, and were recorded in 2005 and 2006. No evidence is found for the existence of statistically significant jet A_N, A_Sigma, or A_TT at mid-rapidity. Recent model calculations indicate the A_N results may provide new limits on the gluon Sivers distribution in the proton. The asymmetry A_LL significantly improves the knowledge of gluon polarization in the nucleon., Comment: 18 pages, 16 figures, 8 tables
Published: 2012

14. Measurements of $D^{0}$ and $D^{*}$ Production in $p$ + $p$ Collisions at $\sqrt{s}$ = 200 GeV

Author: STAR Collaboration, Adamczyk, L., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Aschenauer, E., Averichev, G. S., Balewski, J., Banerjee, A., Barnovska, Z., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bruna, E., B��ltmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Cai, X. Z., Caines, H., S��nchez, M. Calder��n de la Barca, Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, P., Chwastowski, J., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Cui, X., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., de Souza, R. Derradi, Dhamija, S., Didenko, L., Ding, F., Dion, A., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Eun, L., Evdokimov, O., Fatemi, R., Fazio, S., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geurts, F., Gibson, A., Gliske, S., Gorbunov, Y. N., Grebenyuk, O. G., Grosnick, D., Gupta, S., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Huo, L., Igo, G., Jacobs, W. W., Jena, C., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisel, I., Kisiel, A., Kizka, V., Klein, S. R., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kravtsov, P., Krueger, K., Kumar, L., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, W., Li, X., Li, Y., Li, Z. M., Lima, L. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Longacre, R. S., Lu, Y., Luo, X., Luszczak, A., Ma, G. L., Ma, Y. G., Don, D. M. M. D. Madagodagettige, Mahapatra, D. P., Majka, R., Mall, O. I., Margetis, S., Markert, C., Masui, H., Matis, H. S., McDonald, D., McShane, T. S., Mioduszewski, S., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nogach, L. V., Novak, J., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Oliveira, R. A. N., Olson, D., Ostrowski, P., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Ruan, L., Rusnak, J., Sahoo, N. R., Sakrejda, I., Salur, S., Sandacz, A., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, B., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shao, M., Sharma, B., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., deSouza, U. G., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, J. A., Varma, R., Vasconcelos, G. M. S., Videb��k, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten, C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yi, Y., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., Zyzak, M., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We report measurements of charmed-hadron ($D^{0}$, $D^{*}$) production cross sections at mid-rapidity in $p$ + $p$ collisions at a center-of-mass energy of 200 GeV by the STAR experiment. Charmed hadrons were reconstructed via the hadronic decays $D^{0}\rightarrow K^{-}\pi^{+}$, $D^{*+}\rightarrow D^{0}\pi^{+}\rightarrow K^{-}\pi^{+}\pi^{+}$ and their charge conjugates, covering the $p_T$ range of 0.6$-$2.0 GeV/$c$ and 2.0$-$6.0 GeV/$c$ for $D^{0}$ and $D^{*+}$, respectively. From this analysis, the charm-pair production cross section at mid-rapidity is $d\sigma/dy|_{y=0}^{c\bar{c}}$ = 170 $\pm$ 45 (stat.) $^{+38}_{-59}$ (sys.) $\mu$b. The extracted charm-pair cross section is compared to perturbative QCD calculations. The transverse momentum differential cross section is found to be consistent with the upper bound of a Fixed-Order Next-to-Leading Logarithm calculation., Comment: 15 pages, 16 figures. Revised version submitted to Phys. Rev. D
Published: 2012

15. High $p_{T}$ non-photonic electron production in $p$+$p$ collisions at $\sqrt{s}$ = 200 GeV

Author: Agakishiev, H., M. Aggarwal, M., Ahammed, Z., V. Alakhverdyants, A., Alekseev, I., Alford, J., D. Anderson, B., D. Anson, C., Arkhipkin, D., S. Averichev, G., Balewski, J., R. Beavis, D., K. Behera, N., Bellwied, R., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., G. Bordyuzhin, I., Borowski, W., Bouchet, J., Braidot, E., V. Brandin, A., Bridgeman, A., G. Brovko, S., Bruna, E., Bueltmann, S., Bunzarov, I., P. Burton, T., Z. Cai, X., Caines, H., Calder'On De La Barca S'Anchez, M., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Chen, Lin, Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., Chung, P., J. M. Codrington, M., Corliss, R., G. Cramer, J., J. Crawford, H., Dash, S., Davila Leyva, A., C. De Silva, L., Debbe, R.R., G. Dedovich, T., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., G. Efimov, L., Elnimr, M., Engelage, J., Eppley, G., Estienne, Magali, Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., G. Fersch, R., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., R. Gangadharan, D., Geromitsos, A., Geurts, F., Ghosh, P., N. Gorbunov, Y., Gordon, A., G. Grebenyuk, O., Grosnick, D., M. Guertin, S., Gupta, Anupam, Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L.-X., W. Harris, J., P. Hays-Wehle, J., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., W. Hoffmann, G., J. Hofman, D., Huang, B., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Jacobs, P., Jacobs, W.W., Jena, C., Jin, F., Joseph, J., G. Judd, E., Kabana, S., Kang, K., Kapitan, J., Kauder, K., W. Ke, H., Keane, D., Kechechyan, A., Kettler, D., P. Kikola, D., Kiryluk, J., Kisiel, A., Kizka, V., R. Klein, S., G. Knospe, A., D. Koetke, D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, L., Li, N., Li, W., Li, Xiaojian, Li, Y., M. Li, Z., A. Lisa, M., Liu, Franklin, Liu, Hong, Liu, J., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., V. Lukashov, E., Luo, X., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., K. Mitrovski, M., Mohammed, Y., Mohanty, B., M. Mondal, M., Morozov, B., Morozov, D.A., G. Munhoz, M., K. Mustafa, M., Naglis, M., K. Nandi, B., K. Nayak, T., K. Netrakanti, P., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., W. Oldag, E., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., B. Powell, C., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Ruan, L., Rusnak, J., R. Sahoo, N., Sakai, S., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., P. Scharenberg, R., M. Schmah, A., Schmitz, N., R. Schuster, T., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Y. Shou, Q., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., G. Steadman, S., R. Stevens, J., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., N. Svirida, D., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., Tribedy, P., D. Tsai, O., Ullrich, T., G. Underwood, D., Van Buren, G., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videbæk, F., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, Gang, Wang, H., S. Wang, J., Wang, Q., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Witzke, W., F. Wu, Y., Xiao, Z., Xie, W., Xu, H., Xu, N., H. Xu, Q., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Zawisza, M., Zbroszczyk, H., Zhan, W., B. Zhang, J., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, J., Zhong, C., Zhou, W., Zhu, X., H. Zhu, Y., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We present the measurement of non-photonic electron production at high transverse momentum ($p_T > $ 2.5 GeV/$c$) in $p$ + $p$ collisions at $\sqrt{s}$ = 200 GeV using data recorded during 2005 and 2008 by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The measured cross-sections from the two runs are consistent with each other despite a large difference in photonic background levels due to different detector configurations. We compare the measured non-photonic electron cross-sections with previously published RHIC data and pQCD calculations. Using the relative contributions of B and D mesons to non-photonic electrons, we determine the integrated cross sections of electrons ($\frac{e^++e^-}{2}$) at 3 GeV/$c < p_T, Comment: 17 pages, 17 figures
Published: 2011

16. Strange and Multi-strange Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV

Author: Aggarwal, M.M., Ahammed, Z., Alakhverdyants, A.V., Alekseev, I., Alford, J., D. Anderson, B., D. Anson, C., Arkhipkin, D., S. Averichev, G., Balewski, J., R. Beavis, D., Bellwied, R., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., Borowski, W., Bouchet, J., Braidot, E., V. Brandin, A., Bridgeman, A., G. Brovko, S., Bruna, E., Bueltmann, S., Bunzarov, I., P. Burton, T., Z. Cai, X., Caines, H., Calder'On De La Barca S'Anchez, M., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., Chung, P., J. M. Codrington, M., Corliss, R., G. Cramer, J., J. Crawford, H., Dash, S., Davila Leyva, A., C. De Silva, L., Debbe, R.R., G. Dedovich, T., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., G. Efimov, L., Elnimr, M., Engelage, J., Eppley, G., Estienne, Magali, Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., G. Fersch, R., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., R. Gangadharan, D., Geromitsos, A., Geurts, F., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., M. Guertin, S., Gupta, Anupam, Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L.-X., W. Harris, J., P. Hays-Wehle, J., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., W. Hoffmann, G., J. Hofman, D., Huang, B., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Jacobs, P., Jacobs, W.W., Jena, C., Jin, F., Joseph, J., G. Judd, E., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., P. Kikola, D., Kiryluk, J., Kisiel, A., Kizka, V., R. Klein, S., G. Knospe, A., D. Koetke, D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, L., Li, N., Li, W., Li, Xiaojian, Li, Y., M. Li, Z., A. Lisa, M., Liu, Franklin, Liu, Hong, Liu, J., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., V. Lukashov, E., Luo, X., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., K. Mitrovski, M., Mohanty, B., M. Mondal, M., Morozov, B., Morozov, D.A., G. Munhoz, M., Naglis, M., K. Nandi, B., K. Nayak, T., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okorokov, V., W. Oldag, E., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., B. Powell, C., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Ruan, L., Rusnak, J., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., P. Scharenberg, R., M. Schmah, A., Schmitz, N., R. Schuster, T., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., Speltz, J., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., G. Steadman, S., R. Stevens, J., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., N. Svirida, D., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., D. Tsai, O., Ullrich, T., G. Underwood, D., Van Buren, G., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videbæk, F., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, Gang, Wang, H., S. Wang, J., Wang, Q., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Witzke, W., F. Wu, Y., Xie, W., Xu, H., Xu, N., H. Xu, Q., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., B. Zhang, J., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, J., Zhong, C., Zhou, W., Zhu, X., H. Zhu, Y., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: High Energy Physics - Experiment (hep-ex), Nuclear Theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: We present results on strange and multi-strange particle production in Au+Au collisions at $\sqrt{s_{NN}}=62.4$ GeV as measured with the STAR detector at RHIC. Mid-rapidity transverse momentum spectra and integrated yields of $K^{0}_{S}$, $\Lambda$, $\Xi$, $\Omega$ and their anti-particles are presented for different centrality classes. The particle yields and ratios follow a smooth energy dependence. Chemical freeze-out parameters, temperature, baryon chemical potential and strangeness saturation factor obtained from the particle yields are presented. Intermediate transverse momentum ($p_T$) phenomena are discussed based on the ratio of the measured baryon-to-meson spectra and nuclear modification factor. The centrality dependence of various measurements presented show a similar behavior as seen in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV., Comment: STAR collaboration paper, 17 pages, 17 figures
Published: 2011

17. Pion femtoscopy in p+p collisions at sqrt(s)=200 GeV

Author: Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, 3 B. E., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Sánchez, M. Calderón de la Barca, Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Morozov, M. M. Mondal. B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevsky, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The STAR Collaboration at RHIC has measured two-pion correlation functions from p+p collisions at sqrt(s)=200 GeV. Spatial scales are extracted via a femtoscopic analysis of the correlations, though this analysis is complicated by the presence of strong non-femtoscopic effects. Our results are put into the context of the world dataset of femtoscopy in hadron-hadron collisions. We present the first direct comparison of femtoscopy in p+p and heavy ion collisions, under identical analysis and detector conditions., Comment: 16 pages, 15 figures, as published in Phys. Rev. C
Published: 2011

18. Studies of di-jet survival and surface emission bias in Au+Au collisions via angular correlations with respect to back-to-back leading hadrons

Author: Agakishiev, H., Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, C. D., Arkhipkin, D., Averichev, G. S., Balewski, J., Beavis, D. R., Behera, N. K., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Brovko, S. G., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Efimov, L. G., Elnimr, M., Engelage, J., Eppley, G., Estienne, M., Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Geromitsos, A., Geurts, F., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O. G., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hajkova, O., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Joseph, J., Judd, E. G., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Knospe, A. G., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohammed, Y., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Mustafa, M. K., Naglis, M., Nandi, B. K., Nayak, T. K., Netrakanti, P. K., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Pei, H., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Porter, J., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Ruan, L., Rusnak, J., Sahoo, N. R., Sakai, S., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Steadman, S. G., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Tlusty, D., Tokarev, M., Trainor, T. A., Tram, V. N., Trentalange, S., Tribble, R. E., Tribedy, P., Tsai, O. D., Ullrich, T., Underwood, D. G., Van Buren, G., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Witzke, W., Wu, Y. F., Xiao, Z., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of back-to-back high transverse momentum hadrons are used for triggers to study associated hadron distributions. In contrast with two- and three-particle correlations with a single trigger with similar kinematic selections, the associated hadron distribution of both trigger sides reveals no modification in either relative pseudo-rapidity or relative azimuthal angle from d+Au to central Au+Au collisions. We determine associated hadron yields and spectra as well as production rates for such correlated back-to-back triggers to gain additional insights on medium properties., Comment: By the STAR Collaboration. 6 pages, 2 figures
Published: 2011

19. K*0 production in Cu+Cu and Au+Au collisions at \sqrt{s_NN} = 62.4 GeV and 200 GeV

Author: Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, Daniel, Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, B. E., Borowski, W., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Guryn, W., Haag, B., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Kizka, V., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T. A., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Nuclear Theory (nucl-th), High Energy Physics - Experiment (hep-ex), Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report on K*0 production at mid-rapidity in Au+Au and Cu+Cu collisions at \sqrt{s_{NN}} = 62.4 and 200 GeV collected by the Solenoid Tracker at RHIC (STAR) detector. The K*0 is reconstructed via the hadronic decays K*0 \to K+ pi- and \bar{K*0} \to K-pi+. Transverse momentum, pT, spectra are measured over a range of pT extending from 0.2 GeV/c to 5 GeV/c. The center of mass energy and system size dependence of the rapidity density, dN/dy, and the average transverse momentum, , are presented. The measured N(K*0)/N(K) and N(\phi)/N(K*0) ratios favor the dominance of re-scattering of decay daughters of K*0 over the hadronic regeneration for the K*0 production. In the intermediate pT region (2.0 < pT < 4.0 GeV/c), the elliptic flow parameter, v2, and the nuclear modification factor, RCP, agree with the expectations from the quark coalescence model of particle production., Comment: 14 pages and 13 figures
Published: 2011

20. Measurement of the parity-violating longitudinal single-spin asymmetry for $W^{\pm}$ boson production in polarized proton-proton collisions at $\sqrt{s} = 500 $GeV

Author: Aggarwal, M.M., Ahammed, Z., Alakhverdyants, A.V., Alekseev, I., Alford, J., Anderson, B.D., Anson, C.D., Arkhipkin, D., Averichev, G.S., Balewski, J., Beavis, D.R., Bellwied, R., Betancourt, M.J., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., Borowski, W., Bouchet, J., Braidot, E., V. Brandin, A., Bridgeman, A., G. Brovko, S., Bruna, E., Bueltmann, S., Bunzarov, I., P. Burton, T., Z. Cai, X., Caines, H., Calder On De La Barca S Anchez, M., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., Chung, P., J. M. Codrington, M., Corliss, R., G. Cramer, J., J. Crawford, H., Dash, S., Davila Leyva, A., C. De Silva, L., Debbe, R.R., G. Dedovich, T., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., G. E., L., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Evdokimov, O., Fatemi, R., Fedorisin, J., G. Fersch, R., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., R. Gangadharan, D., S. Ganti, M., Geromitsos, A., Geurts, F., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., M. Guertin, S., Gupta, Anupam, Guryn, W., Haag, B., Hamed, A., Han, L.-X., W. Harris, J., P. Hays-Wehle, J., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., W. Ho, G., J. Hofman, D., Huang, B., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Jacobs, P., Jacobs, W.W., Jena, C., Jin, F., Joseph, J., G. Judd, E., Kabana, S., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., P. Kikola, D., Kiryluk, J., Kisiel, A., Kizka, V., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, L., Li, N., Li, W., Li, Xiaojian, Li, Y., M. Li, Z., A. Lisa, M., Liu, Franklin, Liu, Hong, Liu, J., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., V. Lukashov, E., Luo, X., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., K. Mitrovski, M., Mohanty, B., M. Mondal, M., Morozov, B., Morozov, D.A., G. Munhoz, M., Naglis, M., K. Nandi, B., K. Nayak, T., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okorokov, V., W. Oldag, E., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., B. Powell, C., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Ruan, L., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., P. Scharenberg, R., M. Schmah, A., Schmitz, N., R. Schuster, T., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., R. Stevens, J., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., N. Svirida, D., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., D. Tsai, O., Ullrich, T., G. Underwood, D., Van Buren, G., Van Leeuwen, M., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videb K, F., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, Gang, Wang, H., S. Wang, J., Wang, Q., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., F. Wu, Y., Xie, W., Xu, H., Xu, N., H. Xu, Q., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., B. Zhang, J., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., [hep-Ex] Sep, Arxiv:.V, P. Zhang, Z., Zhao, J., Zhong, C., Zhou, W., Zhu, X., H. Zhu, Y., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report the first measurement of the parity violating single-spin asymmetries for midrapidity decay positrons and electrons from $W^{+}$ and $W^{-}$ boson production in longitudinally polarized proton-proton collisions at $\sqrt{s}=500 $GeV by the STAR experiment at RHIC. The measured asymmetries, $A^{W^+}_{L}=-0.27\pm 0.10\;({\rm stat.})\pm 0.02\;({\rm syst.}) \pm 0.03\;({\rm norm.})$ and $A^{W^-}_{L}=0.14\pm 0.19\;({\rm stat.})\pm 0.02 \;({\rm syst.})\pm 0.01\;({\rm norm.})$, are consistent with theory predictions, which are large and of opposite sign. These predictions are based on polarized quark and antiquark distribution functions constrained by polarized DIS measurements., 6 pages, 4 figures, submitted to Physics Review Letters
Published: 2011

21. Identified particle production, azimuthal anisotropy, and interferometry measurements in Au+Au collisions at $\sqrt{s_{NN}}$ = 9.2 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., V. Alakhverdyants, A., D. Anderson, B., Arkhipkin, D., S. Averichev, G., Balewski, J., Barannikova, O., S. Barnby, L., Baumgart, S., R. Beavis, D., Bellwied, R., Benedosso, F., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., Bnzarov, I., E. Bonner, B., Bouchet, J., Braidot, E., V. Brandin, A., Bridgeman, A., Bruna, E., Bueltmann, S., P. Burton, T., Z. Cai, X., Caines, H., Calder'On De La Barca S'Anchez, M., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., Chung, P., F. Clarke, R., J. M. Codrington, M., Corliss, R., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., C. De Silva, L., Debbe, R.R., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., G. Efimov, L., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., G. Fersch, R., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., R. Gangadharan, D., S. Ganti, M., J. Garcia-Solis, E., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., Han, L.-X., W. Harris, J., P. Hays-Wehle, J., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jena, C., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Yu. Khodyrev, V., P. Kikola, D., Kiryluk, J., Kisiel, A., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kollegger, T., Konzer, J., Kopytine, M., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., I. Kravtsov, V., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, N., Li, Y., Li, Zhenyu, Lin, G., Lin, X., J. Lindenbaum, S., A. Lisa, M., Liu, Franklin, Liu, Hong, Liu, J., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., Ludlam, T., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., K. Mitrovski, M., Mohanty, B., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., M. Rehberg, J., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Schambach, J., P. Scharenberg, R., Schmitz, N., R. Schuster, T., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videbaek, F., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, Gang, Wang, H., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Wu, Y., Xie, W., Xu, N., H. Xu, Q., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, Y., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y.-H., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Nuclear Theory (nucl-th), High Energy Physics - Experiment (hep-ex), Nuclear Theory, 25.75.-q, 25.75.Dw, 24.85.+p, 25.75.Ld, 25.75.Gz, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: We present the first measurements of identified hadron production, azimuthal anisotropy, and pion interferometry from Au+Au collisions below the nominal injection energy at the Relativistic Heavy-Ion Collider (RHIC) facility. The data were collected using the large acceptance STAR detector at $\sqrt{s_{NN}}$ = 9.2 GeV from a test run of the collider in the year 2008. Midrapidity results on multiplicity density (dN/dy) in rapidity (y), average transverse momentum (), particle ratios, elliptic flow, and HBT radii are consistent with the corresponding results at similar $\sqrt{s_{NN}}$ from fixed target experiments. Directed flow measurements are presented for both midrapidity and forward rapidity regions. Furthermore the collision centrality dependence of identified particle dN/dy, , and particle ratios are discussed. These results also demonstrate the readiness of the STAR detector to undertake the proposed QCD critical point search and the exploration of the QCD phase diagram at RHIC., Comment: 23 pages and 27 figures, Published version
Published: 2010

22. Spectra of identified high-pT π± and p(p¯) in Cu+Cu collisions at √sNN=200 GeV

Author: Abelev, B.I., M. Aggarwal, M., Ahammed, Z., V. Alakhverdyants, A., D. Anderson, B., Arkhipkin, D., S. Averichev, G., Balewski, J., S. Barnby, L., Baumgart, S., R. Beavis, D., Bellwied, R., Benedosso, F., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., E. Bonner, B., Bouchet, J., Braidot, E., V. Brandin, A., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., P. Burton, T., Z. Cai, X., Caines, H., Calderón De La Barca Sánchez, M., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., Chung, P., F. Clarke, R., J. M. Codrington, M., Corliss, R., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., Davila Leyva, A., C. De Silva, L., Debbe, R.R., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., G. Efimov, L., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., G. Fersch, R., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., R. Gangadharan, D., S. Ganti, M., J. Garcia-Solis, E., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., Han, L.-X., W. Harris, J., P. Hays-Wehle, J., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jena, C., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., P. Kikola, D., Kiryluk, J., Kisiel, A., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kollegger, T., Konzer, J., Kopytine, M., Koralt, I., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, L., Li, N., Li, W., Li, Xiaojian, Li, Y., Li, Zhenyu, Lin, G., J. Lindenbaum, S., A. Lisa, M., Liu, Franklin, Liu, Hong, Liu, J., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., K. Mitrovski, M., Mohanty, B., M. Mondal, M., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., B. Powell, C., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., M. Rehberg, J., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., P. Scharenberg, R., Schmitz, N., R. Schuster, T., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., R. Stevens, J., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videbaek, F., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, Gang, Wang, H., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten, C., Wieman, H., Wingfield, E., W. Wissink, S., Witt, R., Wu, Y., Xie, W., Xu, N., H. Xu, Q., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., H. Zhu, Y., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Nuclear Theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment
Abstract: We report new results on identified (anti)proton and charged pion spectra at large transverse momenta (3
Published: 2010

23. Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR

Author: STAR Collaboration, Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., Anson, Daniel, Arkhipkin, D., Averichev, G. S., Balewski, J., Barnby, L. S., Baumgart, S., Beavis, D. R., Bellwied, R., Betancourt, M. J., Betts, R. R., Bhasin, A., Bhati, A. K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L. C., Bonner, B. E., Bouchet, J., Braidot, E., Brandin, A. V., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., Burton, T. P., Cai, X. Z., Caines, H., Calderon, M., Catu, O., Cebra, D., Cendejas, R., Cervantes, M. C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, J. Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K. E., Christie, W., Chung, P., Clarke, R. F., Codrington, M. J. M., Corliss, R., Cramer, J. G., Crawford, H. J., Das, D., Dash, S., Leyva, A. Davila, De Silva, L. C., Debbe, R. R., Dedovich, T. G., Derevschikov, A. A., de Souza, R. Derradi, Didenko, L., Djawotho, P., Dogra, S. M., Dong, X., Drachenberg, J. L., Draper, J. E., Dunlop, J. C., Mazumdar, M. R. Dutta, Efimov, L. G., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., Fersch, R. G., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C. A., Gangadharan, D. R., Ganti, M. S., Garcia-Solis, E. J., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., Gorbunov, Y. N., Gordon, A., Grebenyuk, O., Grosnick, D., Guertin, S. M., Gupta, A., Gupta, N., Guryn, W., Haag, B., Hamed, A., Han, L-X., Harris, J. W., Hays-Wehle, J. P., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., Hoffman, A. M., Hoffmann, G. W., Hofman, D. J., Huang, B., Huang, H. Z., Humanic, T. J., Huo, L., Igo, G., Jacobs, P., Jacobs, W. W., Jena, C., Jin, F., Jones, C. L., Jones, P. G., Joseph, J., Judd, E. G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Kikola, D. P., Kiryluk, J., Kisiel, A., Klein, S. R., Knospe, A. G., Kocoloski, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M. A. C., Landgraf, J. M., LaPointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C-H., Lee, J. H., Leight, W., LeVine, M. J., Li, C., Li, L., Li, N., Li, W., Li, X., Li, Y., Li, Z. M., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, H., Liu, J., Ljubicic, T., Llope, W. J., Longacre, R. S., Love, W. A., Lu, Y., Lukashov, E. V., Luo, X., Ma, G. L., Ma, Y. G., Mahapatra, D. P., Majka, R., Mall, O. I., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Matulenko, Yu. A., McDonald, D., McShane, T. S., Meschanin, A., Milner, R., Minaev, N. G., Mioduszewski, S., Mischke, A., Mitrovski, M. K., Mohanty, B., Mondal, M. M., Morozov, B., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nattrass, C., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Ng, M. J., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldag, E. W., Olson, D., Pachr, M., Page, B. S., Pal, S. K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S. C., Pile, P., Planinic, M., Ploskon, M. A., Pluta, J., Plyku, D., Poljak, N., Poskanzer, A. M., Potukuchi, B. V. K. S., Powell, C. B., Prindle, D., Pruneau, C., Pruthi, N. K., Pujahari, P. R., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., Ray, R. L., Redwine, R., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., Scharenberg, R. P., Schmitz, N., Schuster, T. R., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S. S., Sichtermann, E. P., Simon, F., Singaraju, R. N., Skoby, M. J., Smirnov, N., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Staszak, D., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Suarez, M. C., Subba, N. L., Sumbera, M., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., de Toledo, A. Szanto, Takahashi, J., Tang, A. H., Tang, Z., Tarini, L. H., Tarnowsky, T., Thein, D., Thomas, J. H., Tian, J., Timmins, A. R., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T. A., Tram, V. N., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Van Buren, G., van Leeuwen, M., van Nieuwenhuizen, G., Vanfossen, Jr., J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Videbaek, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, Q., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Whitten Jr., C., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xie, W., Xu, H., Xu, N., Xu, Q. H., Xu, W., Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, J. B., Zhang, S., Zhang, W. M., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., Zhu, Y. H., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Yields, correlation shapes, and mean transverse momenta \pt{} of charged particles associated with intermediate to high-\pt{} trigger particles ($2.5 < \pt < 10$ \GeVc) in d+Au and Au+Au collisions at $\snn=200$ GeV are presented. For associated particles at higher $\pt \gtrsim 2.5$ \GeVc, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle $\pt < 2$ \GeVc, a large enhancement of the near- ($\dphi \sim 0$) and away-side ($\dphi \sim ��$) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at $\dphi \sim ��$ in central Au+Au collisions., 16 pages, 11 figures, updated after journal review
Published: 2010

24. Measurement of the Bottom Quark contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s} $=200 GeV

Author: Aggarwal, M.M., Ahammed, Z., Alakhverdyants, A.V., Alekseev, I., Alford, J., D. Anderson, B., Arkhipkin, D., S. Averichev, G., Balewski, J., S. Barnby, L., Baumgart, S., R. Beavis, D., Bellwied, R., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., E. Bonner, B., Bouchet, J., Braidot, E., V. Brandin, A., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., P. Burton, T., Z. Cai, X., Caines, H., Calder'On De La Barca S'Anchez, M., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., Chung, P., F. Clarke, R., J. M. Codrington, M., Corliss, R., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., Davila Leyva, A., C. De Silva, L., Debbe, R.R., G. Dedovich, T., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., G. Efimov, L., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Evdokimov, O., Fachini, P., Fatemi, R., Fedorisin, J., G. Fersch, R., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., R. Gangadharan, D., S. Ganti, M., J. Garcia-Solis, E., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., M. Guertin, S., Gupta, Anupam, Guryn, W., Haag, B., Hamed, A., Han, L.-X., W. Harris, J., P. Hays-Wehle, J., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., Huang, B., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Jacobs, P., Jacobs, W.W., Jena, C., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., P. Kikola, D., Kiryluk, J., Kisiel, A., Kizka, V., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kollegger, T., Konzer, J., Koralt, I., Koroleva, L., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, L., Li, N., Li, W., Li, Xiaojian, Li, Y., M. Li, Z., Lin, G., Y. Lin, X., J. Lindenbaum, S., A. Lisa, M., Liu, Franklin, Liu, Hong, Liu, J., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., V. Lukashov, E., Luo, X., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., K. Mitrovski, M., Mohanty, B., M. Mondal, M., Morozov, B., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okorokov, V., W. Oldag, E., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., B. Powell, C., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Qiu, H., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., P. Scharenberg, R., Schmitz, N., R. Schuster, T., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., R. Stevens, J., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., N. Svirida, D., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Leeuwen, M., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videbaek, F., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, Gang, Wang, H., S. Wang, J., Wang, Q., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., F. Wu, Y., Xie, W., Xu, H., Xu, N., H. Xu, Q., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., B. Zhang, J., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., H. Zhu, Y., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The contribution of $B$ meson decays to non-photonic electrons, which are mainly produced by the semi-leptonic decays of heavy flavor mesons, in $p+p$ collisions at $\sqrt{s} =$ 200 GeV has been measured using azimuthal correlations between non-photonic electrons and hadrons. The extracted $B$ decay contribution is approximately 50% at a transverse momentum of $p_{T} \geq 5$ GeV/$c$. These measurements constrain the nuclear modification factor for electrons from $B$ and $D$ meson decays. The result indicates that $B$ meson production in heavy ion collisions is also suppressed at high $p_{T}$., Comment: 6 pages, 4 figures, accepted by PRL
Published: 2010

25. Inclusive pi^0, eta, and direct photon production at high transverse momentum in p+p and d+Au collisions at sqrt(s_NN) = 200 GeV

Author: Abelev, B.I., M. Aggarwal, M., Ahammed, Z., V. Alakhverdyants, A., D. Anderson, B., Arkhipkin, D., S. Averichev, G., Balewski, J., Barannikova, O., S. Barnby, L., Baumgart, S., R. Beavis, D., Bellwied, R., Benedosso, F., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., E. Bonner, B., Bouchet, J., Braidot, E., V. Brandin, A., Bridgeman, A., Bruna, E., Bueltmann, S., Bunzarov, I., P. Burton, T., Z. Cai, X., Caines, H., Calderon De La Barca Sanchez, M., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., Chung, P., F. Clarke, R., J. M. Codrington, M., Corliss, R., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., Davila Leyva, A., C. De Silva, L., Debbe, R.R., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., G. Emov, L., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., G. Fersch, R., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., R. Gangadharan, D., S. Ganti, M., J. Garcia-Solis, E., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., Han, L.-X., W. Harris, J., P. Hays-Wehle, J., Heinz, M., Heppelmann, S., Hirsch, A., Hjort, E., M. Homan, A., W. Ho_mann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jena, C., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., P. Kikola, D., Kiryluk, J., Kisiel, A., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kollegger, T., Konzer, J., Kopytine, M., Koralt, I., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., Krueger, K., Krus, M., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, L., Li, N., Li, W., Li, Xiaojian, Li, Y., Li, Zhenyu, Lin, G., J. Lindenbaum, S., M. A. Lisa,, Liu, Franklin, Liu, Hong, Liu, J., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., K. Mitrovski, M., Mohanty, B., M. Mondal, M., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., B. Powell, C., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., M. Rehberg, J., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sangaline, E., Schambach, J., P. Scharenberg, R., Schmitz, N., R. Schuster, T., Seele, J., Seger, J., Selyuzhenkov, I., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., R. Stevens, J., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videbaek, F., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, Gang, Wang, H., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., Wing_eld, E., W. Wissink, S., Witt, R., Wu, Y., Xie, W., Xu, N., H. Xu, Q., Xu, Wei-Jiang, Xu, Y., Xu, Z., Xue, L., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, J., Zhong, C., Zhou, J., Zhou, W., Zhu, X., H. Zhu, Y., Zoulkarneev, R., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: High Energy Physics - Experiment (hep-ex), 13.85.Ni, 13.85.Qk, 13.87.Fh, 25.75.-q, 25.75.Dw, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report a measurement of high-p_T inclusive pi^0, eta, and direct photon production in p+p and d+Au collisions at sqrt(s_NN) = 200 GeV at midrapidity (0 < eta < 1). Photons from the decay pi^0 -> gamma gamma were detected in the Barrel Electromagnetic Calorimeter of the STAR experiment at the Relativistic Heavy Ion Collider. The eta -> gamma gamma decay was also observed and constituted the first eta measurement by STAR. The first direct photon cross section measurement by STAR is also presented, the signal was extracted statistically by subtracting the pi^0, eta, and omega(782) decay background from the inclusive photon distribution observed in the calorimeter. The analysis is described in detail, and the results are found to be in good agreement with earlier measurements and with next-to-leading order perturbative QCD calculations., 28 pages, 30 figures, 6 tables, the updated version that was accepted by Phys. Rev. C
Published: 2010

26. Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV

Author: Abelev, B.I., M. Aggarwal, M., Ahammed, Z., D. Anderson, B., Arkhipkin, D., S. Averichev, G., Balewski, J., Barannikova, O., S. Barnby, L., Baudot, J., Baumgart, S., R. Beavis, D., Bellwied, R., Benedosso, F., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., Bombara, M., E. Bonner, B., Botje, M., Bouchet, J., Braidot, E., V. Brandin, A., Bruna, E., Bueltmann, S., P. Burton, T., Bystersky, M., Z. Cai, X., Caines, H., Calder'On De La Barca S'Anchez, M., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., F. Clarke, R., J. M. Codrington, M., Corliss, R., M. Cormier, T., R. Cosentino, M., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., Daugherity, M., C. De Silva, L., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., Du, F., C. Dunlop, J., R. Dutta Mazumdar, M., R. Edwards, W., G. Efimov, L., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magalie, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., R. Gangadharan, D., S. Ganti, M., J. Garcia-Solis, E., Geurts, F., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., S. F. F. Guimaraes, K., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., W. Harris, J., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jena, C., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Keane, D., Kechechyan, A., Kettler, D., Yu. Khodyrev, V., P. Kikola, D., Kiryluk, J., Kisiel, A., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kopytine, M., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., I. Kravtsov, V., Krueger, K., Krus, M., Kuhn, C., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, Y., Lin, G., J. Lindenbaum, S., A. Lisa, M., Liu, F., Liu, J., Liu, L., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., Ludlam, T., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., S. Matis, H., A. Matulenko, Yu., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Planinic, M., Pluta, J., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Raniwala, R., Raniwala, S., Redwine, R., Reed, R., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., P. Scharenberg, R., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., Stadnik, A., D. S. Stanislaus, T., Staszak, D., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., N. Tram, V., L. Trattner, A., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Leeuwen, M., M. Vander Molen, A., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., M. Vasilevski, I., N. Vasiliev, A., Videbaek, F., E. Vigdor, S., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, G., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Wu, Y., Xie, W., Xu, N., H. Xu, Q., Xu, Y., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., X. Zuo, J., Geromitsos, A., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 25.75.Gz, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au+Au and $\textit{p+p}$ collisions at $\sqrt{s_{NN}}$ = 200 GeV. Strong short and long range correlations (LRC) are seen in central Au+Au collisions. The magnitude of these correlations decrease with decreasing centrality until only short range correlations are observed in peripheral Au+Au collisions. Both the Dual Parton Model (DPM) and the Color Glass Condensate (CGC) predict the existence of the long range correlations. In the DPM the fluctuation in the number of elementary (parton) inelastic collisions produces the LRC. In the CGC longitudinal color flux tubes generate the LRC. The data is in qualitative agreement with the predictions from the DPM and indicates the presence of multiple parton interactions., 6 pages, 3 figures The abstract has been slightly modified
Published: 2009

27. Energy and system size dependence of $\Phi$ meson production in Cu+Cu and Au+Au collisions

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Beavis, D.R., Bellwied, R., Benedosso, F., Betancourt, M.J., Betts, R.R., Bharadwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L.C., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Braidot, E., Brandin, A.V., Bruna, E., Bueltmann, S., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calderón De La Barca Sánchez, M., Callner, J., Catu, O., Cebra, D., Cendejas, R., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K.E., Christie, W., Chung, S.U., Clarke, R.F., Codrington, M.J., Coffin, J.P., Corliss, R., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Silva, C., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Derradi De Souza, R., Didenko, L., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunlop, J.C., Dutta Mazumdar, M.R., Edwards, W.R., Efimov, L.G., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., Gangadharan, D.R., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Huang, H.Z., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jin, F., Jones, C.L., Jones, P.G., Joseph, J., Judd, E.G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kikola, D.P., Kiryluk, J., Kisiel, A., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kopytine, M., Kotchenda, L., Kouchpil, V., Kravtsov, P., Kravtsov, V.I., Krueger, K., Krus, M., Kuhn, C., Kumar, L., Kurnadi, P., Lamont, M.A.C., Landgraf, J.M., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Leight, W., LeVine, M.J., Li, C., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, Y.G., Mahapatra, D.P., Majka, R., Mall, O.I., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Matis, H.S., Matulenko, Yu.A., McShane, T.S., Meschanin, A., Millner, R., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Ng, M.J., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Page, B.S., Pal, S.K., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Poskanzer, A.M., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Pruthi, N.K., Putschke, J., Raniwala, R., Raniwala, S., Ray, R.L., Redwine, R., Reed, R., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Savin, I., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., Sichtermann, E., Simon, F., Singaraj, R.N., Skoby, M.J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Y., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tang, Z., Tarnowsky, T., Thein, D., Thomas, J.H., Tian, J., Timmins, A.R., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., Tram, V.N., Trattner, A.L., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Leeuwen, M., Vander Molen, A.M., Vanfossen Jr., J.A., Varma, R., Vasconcelos, G.M.S., Vasilevski, I.M., Vasiliev, A.N., Videbaek, F., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Walker, M., Wang, F., Wang, Gang, Wang, J.S., Wang, Q., Wang, X., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wu, Y., Xu, N., Xu, Q.H., Xu, Y., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: Strangeness enhancement, Resonances, Quark-gluon plasma, High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Particle production, Canonical suppression
Abstract: We study the beam-energy and system-size dependence of $\Phi$ meson production (using the hadronic decay mode $\Phi$→K+K−) by comparing the new results from Cu+Cu collisions and previously reported Au+Au collisions at $\sqrt{S_{NN}}$ = 62.4 and 200 GeV measured in the STAR experiment at RHIC. Data presented in this Letter are from mid-rapidity (|y
Published: 2009

28. Observation of Two-source Interference in the Photoproduction Reaction $Au Au \to Au Au \rho^0$

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., R. Beavis, D., Bellwied, R., Benedosso, F., Betancourt, M.J., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L.C., Bombara, M., E. Bonner, B., Botje, M., Bouchet, J., Braidot, E., V. Brandin, A., Bruna, E., Bueltmann, S., P. Burton, T., Bystersky, M., Z. Cai, X., Caines, H., Calderon De La Barca Sanchez, M., Callner, J., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., U. Chung, S., F. Clarke, R., J. M. Codrington, M., P. Coffin, J., Corliss, R., M. Cormier, T., R. Cosentino, M., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., Daugherity, M., De Silva, C., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., Du, F., C. Dunlop, J., R. Dutta Mazumdar, M., R. Edwards, W., G. Efimov, L., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magalie, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., R. Gangadharan, D., S. Ganti, M., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., S. F. F. Guimaraes, K., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., W. Harris, J., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., J. Humanic, T., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Yu. Khodyrev, V., P. Kikola, D., Kiryluk, J., Kisiel, A., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kopytine, M., Kotchenda, L., Kouchpil, V., Kravtsov, P., I. Kravtsov, V., Krueger, K., Krus, M., Kuhn, C., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Leight, W., J. Levine, M., Li, C., Li, Y., Lin, G., J. Lindenbaum, S., A. Lisa, M., Liu, F., Liu, Hong, Liu, J., Liu, L., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., S. Matis, H., A. Matulenko, Yu., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., Nepali, C., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Planinic, M., Pluta, J., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., K. Pruthi, N., Putschke, J., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., P. Scharenberg, R., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., Stadnik, A., D. S. Stanislaus, T., Staszak, D., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., L. Trattner, A., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Leeuwen, M., M. Vander Molen, A., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., M. Vasilevski, I., N. Vasiliev, A., Videbaek, F., E. Vigdor, S., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., T. Waggoner, W., Walker, M., Wang, F., Wang, G., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Wu, Y., Xie, W., Xu, N., H. Xu, Q., Xu, Y., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., M. Zhang, W., Zhang, Y., P. Zhang, Z., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., X. Zuo, J., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Quantum Physics, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: In ultra-peripheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nucleus, emerging as a $\rho^0$. The $\rho^0$ production occurs in two well-separated (median impact parameters of 20 and 40 fermi for the cases considered here) nuclei, so the system forms a 2-source interferometer. At low transverse momenta, the two amplitudes interfere destructively, suppressing $\rho^0$ production. Since the $\rho^0$ decay before the production amplitudes from the two sources can overlap, the two-pion system can only be described with an entangled non-local wave function, and is thus an example of the Einstein-Podolsky-Rosen paradox. We observe this suppression in 200 GeV per nucleon-pair gold-gold collisions. The interference is $87% \pm 5% {\rm (stat.)}\pm 8%$ (syst.) of the expected level. This translates into a limit on decoherence due to wave function collapse or other factors, of 23% at the 90% confidence level., Comment: Slightly revised version, to appear in PRL. 6 pages with 4 figures
Published: 2009

29. Neutral Pion Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV

Author: Abelev, B.I., M. Aggarwal, M., Ahammed, Z., V. Alakhverdyants, A., D. Anderson, B., Arkhipkin, D., S. Averichev, G., Balewski, J., Barannikova, O., S. Barnby, L., Baudot, J., Baumgart, S., R. Beavis, D., Bellwied, R., Benedosso, F., J. Betancourt, M., Betts, R.R., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., Bnzarov, I., Bombara, M., E. Bonner, B., Bouchet, J., Braidot, E., V. Brandin, A., Bruna, E., Bueltmann, S., P. Burton, T., Bystersky, M., Z. Cai, X., Caines, H., Calder'On De La Barca S'Anchez, M., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., F. Clarke, R., J. M. Codrington, M., Corliss, R., M. Cormier, T., R. Cosentino, M., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., Daugherity, M., C. De Silva, L., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., G. Efimov, L., Elhalhuli, E., Elnimr, M., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magalie, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., R. Gangadharan, D., S. Ganti, M., J. Garcia-Solis, E., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., S. F. F. Guimaraes, K., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., W. Harris, J., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jena, C., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kauder, K., Keane, D., Kechechyan, A., Kettler, D., Yu. Khodyrev, V., P. Kikola, D., Kiryluk, J., Kisiel, A., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Konzer, J., Kopytine, M., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., I. Kravtsov, V., Krueger, K., Krus, M., Kuhn, C., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, N., Li, Y., Lin, G., J. Lindenbaum, S., A. Lisa, M., Liu, F., Liu, Hong, Liu, J., Liu, L., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., Ludlam, T., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Masui, H., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., Mohanty, B., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., A. Ploskon, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., P. Scharenberg, R., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., D. S. Stanislaus, T., Staszak, D., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Nieuwenhuizen, G., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., N. Vasiliev, A., Videbaek, F., E. Vigdor, S., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, G., Wang, H., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Wu, Y., Xie, W., Xu, N., H. Xu, Q., Xu, Y., Xu, Z., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, Y., Zhong, C., Zhou, J., Zhu, X., Zoulkarneev, R., Zoulkarneeva, Y., X. Zuo, J., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The results of mid-rapidity ($0 < y < 0.8$) neutral pion spectra over an extended transverse momentum range ($1 < p_T < 12$ GeV/$c$) in $\sqrt{s_{NN}}$ = 200 GeV Au+Au collisions, measured by the STAR experiment, are presented. The neutral pions are reconstructed from photons measured either by the STAR Barrel Electro-Magnetic Calorimeter (BEMC) or by the Time Projection Chamber (TPC) via tracking of conversion electron-positron pairs. Our measurements are compared to previously published $��^{\pm}$ and $��^0$ results. The nuclear modification factors $R_{\mathrm{CP}}$ and $R_{\mathrm{AA}}$ of $��^0$ are also presented as a function of $p_T$ . In the most central Au+Au collisions, the binary collision scaled $��^0$ yield at high $p_T$ is suppressed by a factor of about 5 compared to the expectation from the yield of p+p collisions. Such a large suppression is in agreement with previous observations for light quark mesons and is consistent with the scenario that partons suffer considerable energy loss in the dense medium formed in central nucleus-nucleus collisions at RHIC., 10 pages, 9 figures. submitted to Physical Review C
Published: 2009

30. J/psi production at high transverse momentum in p+p and Cu+Cu collisions at \sNN=200GeV

Author: Abelev, B.I., M. Aggarwal, M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Beavis, D.R., Bellwied, R., Benedosso, F., J. Betancourt, M., Betts, R.R., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L.C., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Braidot, E., Brandin, A.V., Bruna, E., Bueltmann, S., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calderon De La Barca Sanchez, M., Catu, O., Cebra, D., Cendejas, R., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K.E., Christie, W., Clarke, R.F., Codrington, M.J.M., Corliss, R., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Silva, L.C., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Derradi De Souza, R., Didenko, L., Djawotho, P., M. Dogra, S., Dong, X., Drachenberg, J.L., E. Draper, J., C. Dunlop, J., R. Dutta Mazumdar, M., R. Edwards, W., G. Efimov, L., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magalie, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., R. Gangadharan, D., S. Ganti, M., J. Garcia-Solis, E., Geromitsos, A., Geurts, F., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., S. F. F. Guimaraes, K., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., W. Harris, J., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., J. Humanic, T., Huo, L., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jena, C., Jin, F., L. Jones, C., G. Jones, P., Joseph, J., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Keane, D., Kechechyan, A., Kettler, D., Yu. Khodyrev, V., P. Kikola, D., Kiryluk, J., Kisiel, A., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kopytine, M., Korsch, W., Kotchenda, L., Kouchpil, V., Kravtsov, P., I. Kravtsov, V., Krueger, K., Krus, M., Kuhn, C., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lapointe, S., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., H. Lee, J., Leight, W., J. Levine, M., Li, C., Li, N., Li, Y., Lin, G., J. Lindenbaum, S., A. Lisa, M., Liu, F., Liu, J., Liu, L., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., Ludlam, T., L. Ma, G., G. Ma, Y., P. Mahapatra, D., Majka, R., I. Mall, O., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., S. Matis, H., A. Matulenko, Yu., Mcdonald, D., S. Mcshane, T., Meschanin, A., Milner, R., G. Minaev, N., Mioduszewski, S., Mischke, A., Mohanty, B., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., S. Page, B., K. Pal, S., Pandit, Y., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Pile, P., Planinic, M., Pluta, J., Plyku, D., Poljak, N., M. Poskanzer, A., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., K. Pruthi, N., R. Pujahari, P., Putschke, J., Raniwala, R., Raniwala, S., L. Ray, R., Redwine, R., Reed, R., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., P. Scharenberg, R., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., Stadnik, A., D. S. Stanislaus, T., Staszak, D., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Y., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., H. Tarini, L., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tlusty, D., Tokarev, M., Trainor, T.A., N. Tram, V., L. Trattner, A., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Leeuwen, M., M. Vander Molen, A., A. Vanfossen, J., Varma, R., M. S. Vasconcelos, G., M. Vasilevski, I., N. Vasiliev, A., Videbaek, F., E. Vigdor, S., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., Walker, M., Wang, F., Wang, G., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., Webb, G., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Wu, Y., Xie, W., Xu, N., H. Xu, Q., Xu, Y., Xu, Z., Yang, Y., Yepes, P., Yip, K., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, S., M. Zhang, W., P. Zhang, X., Zhang, Y., P. Zhang, Z., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 12.38.Mh, 14.40.Gx, 25.75.Dw, 25.75.Nq
Abstract: The STAR collaboration at RHIC presents measurements of \Jpsi$\to{e^+e^-}$ at mid-rapidity and high transverse momentum ($p_T>5$ GeV/$c$) in \pp and central \cucu collisions at \sNN = 200 GeV. The inclusive \Jpsi production cross section for \cucu collisions is found to be consistent at high $p_T$ with the binary collision-scaled cross section for \pp collisions, in contrast to previous measurements at lower $p_T$, where a suppression of \Jpsi production is observed relative to the expectation from binary scaling. Azimuthal correlations of $J/��$ with charged hadrons in \pp collisions provide an estimate of the contribution of $B$-meson decays to \Jpsi production of $13% \pm 5%$.
Published: 2009

31. Indications of Conical Emission of Charged Hadrons at RHIC

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Beavis, D.R., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L.C., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Braidot, E., Brandin, A.V., Bueltmann, S., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calder'On De La Barca S'Anchez, M., Callner, J., Catu, O., Cebra, D., Cendejas, R., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K.E., Christie, W., Chung, S.U., Clarke, R.F., Codrington, M.J.M., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Derradi De Souza, R., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunlop, J.C., Dutta, M.R., Edwards, W.R., Efimov, L.G., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., Gangadharan, D.R., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jin, F., Jones, P.G., Judd, E.G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kumar, A., Kumar, L., Kurnadi, P., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., LeVine, M.J., Li, C., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Matis, H.S., Matulenko, Yu.A., McShane, T.S., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Ng, M.J., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Pruthi, N.K., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., Sichtermann, E.P., Simon, F., Singaraju, R.N., Skoby, M.J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tang, Z., Tarnowsky, T., Thein, D., Thomas, J.H., Tian, J., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Tram, V.N., Trattner, A.L., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasconcelos, G.M.S., Vasilevski, I.M., Vasiliev, A.N., Videbaek, F., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, Q., Wang, X., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten, C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 25.75.-q, 25.75.Dw
Abstract: 6 pages, 4 figures, 1 table; Three-particle azimuthal correlation measurements with a high transverse momentum trigger particle are reported for pp, d+Au, and Au+Au collisions at 200 GeV by the STAR experiment. The acoplanarities in pp and d+Au indicate initial state kT broadening. Larger acoplanarity is observed in Au+Au collisions. The central Au+Au data show an additional effect signaling conical emission of correlated charged hadrons.
Published: 2009

32. Charge Independent(CI) and Charge Dependent(CD) correlations vs. Centrality from $\Delta \phi \Delta \eta$ Charged Pairs in Minimum Bias Au + Au Collisions at 200 Gev

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Beavis, D.R., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., Bland, L.C., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Braidot, E., Brandin, A.V., Bueltmann, S., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calder'On De La Barca S'Anchez, M., Callner, J., Catu, O., Cebra, D., Cendejas, R., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K.E., Christie, W., Chung, S.U., Clarke, R.F., Codrington, M.J.M., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Derradi De Souza, R., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunlop, J.C., Dutta Mazumdar, M.R., Edwards, W.R., Efimov, L.G., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., Gangadharan, D.R., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, W.W., Jakl, P., Jin, F., Jones, P.G., Judd, E.G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kumar, A., Kumar, L., Kurnadi, P., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., LeVine, M.J., Li, C., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Matis, H.S., Matulenko, Yu.A., McShane, T.S., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Ng, M.J., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Pruthi, N.K., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Rykov, V., Sahoo, R., Sakai, S., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., Sichtermann, E.P., Simon, F., Singaraju, R.N., Skoby, M.J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tang, Z., Tarnowsky, T., Thein, D., Thomas, J.H., Tian, J., Timmins, A.R., Timoshenko, S., Tokarev, M., Tram, V.N., Trattner, A.L., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasconcelos, G.M.S., Vasilevski, I.M., Vasiliev, A.N., Videbaek, F., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, Q., Wang, X., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 25.75.Gz, 12.38.Mh, High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report high precision charged-particle pair (2-D) correlation analyses in the space of $\Delta \phi$ (azimuth) and $\Delta \eta$ (pseudorapidity), for minimum bias Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV as a function of centrality (0-80%). The intermediate transverse momenta region chosen $0.8 < p_t < 4.0$ GeV/c corresponds to an emission source size $\sim2$fm obtained from HBT measurements and should resolve substructures at the scale of $\sim2$fm. The difference and the sum of unlike-sign and like-sign charged pairs form Charge Dependent (CD) correlations and Charge Independent (CI) correlations respectively. The CD displays the initial correlation at hadronization of the opposite sign pairs emitted from the same space-time region as modified by further medium interactions before kinetic freeze-out. Our analysis of the CD correlations shows approximately jet-like structure, independent of centrality and is consistent with the initial correlation which is predicted by Pythia (or HIJING) jets. The CI correlation displays the average structure of the correlated emitting sources after kinetic freeze-out. For the most central bins, the $\Delta \eta$ width of the CI correlation on the near side ($\Delta \phi$ around $0^\circ$) is elongated by a factor $\sim$3 destroying the jet-like symmetry. This elongation decreases continually with decreasing centrality and essentially restores the jet-like symmetric structure in the most peripheral bins. The Pythia and HIJING event generators together with a QCD inspired Parton Bubble Model (PBM), which motivated this analysis, are used to compare to our data. We discuss the arguments for substructure, surface emission, and opacity in the central fireball region., Comment: 37 pages 41 figures Submitted to Phys. Rev. C
Published: 2008

33. Centrality dependence of charged hadron and strange hadron elliptic flow from $\sqrt{s_{NN}}$ = 200 GeV Au+Au collisions

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Beavis, D.R., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Bombara, M., Bonner, B.E., Botje, M., Braidot, E., Brandin, A.V., Bueltmann, S., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calderon De La Barca Sanchez, M., Callner, J., Catu, O., Cebra, D., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K.E., Christie, W., Chung, S.U., Clarke, R.F., Codrington, M.J.M., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Derradi De Souza, R., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunlop, J.C., Dutta Mazumdar, M.R., Edwards, W.R., Efimov, L.G., Elhalhuli, E., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jin, F., Jones, P.G., Judd, E.G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kumar, A., Kumar, L., Kurnadi, P., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., LeVine, M.J., Li, C., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Matis, H.S., Matulenko, Yu.A., McShane, T.S., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Ng, M.J., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Oldenberg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Pruthi, N.K., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., Scharenberg, R.P., Schmitz, N., Schwada, K., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., Sichtermann, E.P., Simon, F., Singaraju, R.N., Skoby, M.J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De, A., Takahashi, J., Tang, A.H., Tang, Z., Tarnowsky, T., Thein, D., Thomas, J.H., Tian, J., Timmins, A.R., Timoshenko, S., Tokarev, M., Tram, V.N., Trattner, A.L., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasconcelos, G.M.S., Vasilevski, I.M., Vasiliev, A.N., Videbaek, F., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, Q., Wang, X., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten, C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: 25.75.Ld, 25.75.Dw, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We present STAR results on the elliptic flow v_2 of charged hadrons, strange and multi-strange particles from sqrt(s_NN) = 200 GeV Au+Au collisions at RHIC. The detailed study of the centrality dependence of v_2 over a broad transverse momentum range is presented. Comparison of different analysis methods are made in order to estimate systematic uncertainties. In order to discuss the non-flow effect, we have performed the first analysis of v_2 with the Lee-Yang Zero method for K_s^0 and Lambda. In the relatively low p_T region, p_T, 25 pages, as accepted for Phys. Rev. C. The data tables are at http://drupal.star.bnl.gov/STAR/files/starpublications/108/data.html
Published: 2008

34. Enhanced strange baryon production in Au+Au collisions compared to p+p at $\sqrt{s_{NN}}$ = 200 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calder'On De La Barca S'Anchez, M., Callner, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, S.U., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gos, H., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, N., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Horner, M.J., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kurnadi, P., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Yu.A., McClain, C.J., McShane, T.S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E.P., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tarnowsky, T., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Yurevich, V.I., Zawisza, M., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear Theory, 25.75.-q,25.75.Dw,25.75.Nq,12.40.Ee, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We report on the observed differences in production rates of strange and multi-strange baryons in Au+Au collisions at sqrts = 200 GeV compared to pp interactions at the same energy. The strange baryon yields in Au+Au collisions, then scaled down by the number of participating nucleons, are enhanced relative to those measured in pp reactions. The enhancement observed increases with the strangeness content of the baryon, and increases for all strange baryons with collision centrality. The enhancement is qualitatively similar to that observed at lower collision energy sqrts =17.3 GeV. The previous observations are for the bulk production, while at intermediate pT, 1 < pT< 4 GeV/c, the strange baryons even exceed binary scaling from pp yields., 7 pages, 4 figures. Printed in PRC
Published: 2008

35. $\rho^0$ photoproduction in ultraperipheral relativistic heavy ion collisions at $\sqrt{S_{NN}}$=200 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Beavis, D.R., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Braidot, E., Brandin, A.V., Bueltmann, S., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calderon De La Barca Sanchez, M., Callner, J., Catu, O., Cebra, D., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Choi, K.E., Christie, W., Chung, S.U., Clarke, R.F., Codrington, M.J.M., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Derradi De Souza, R., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunlop, J.C., Dutta Mazumdar, M.R., Edwards, W.R., Efimov, L.G., Elhalhuli, E., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magalie, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Horner, M.J., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jin, F., Jones, P.G., Judd, E.G., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kumar, A., Kurnadi, P., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, F., Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Matis, H.S., Matulenko, Yu.A., McShane, T.S., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Ng, M.J., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Pruthi, N.K., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, X.-H., Sichtermann, E.P., Simon, F., Singaraju, R.N., Skoby, M.J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tang, Z., Tarnowsky, T., Thein, D., Thomas, J.H., Tian, J., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Tram, V.N., Trattner, A.L., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander, A.M., Varma, R., Vasconcelos, G.M.S., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Videbaek, F., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, G., Wang, J.S., Wang, Q., Wang, X., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten, C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 25.20.Lj, 13.60.-r, 25.75.Cj, 25.75.Dw
Abstract: 12 pages, 11 figures, 3 tables,; Photoproduction reactions occur when the electromagnetic field of a relativistic heavy ion interacts with another heavy ion. The STAR collaboration presents a measurement of rho^0 and direct pi^+pi^- photoproduction in ultra-peripheral relativistic heavy ion collisions at sqrt(s_{NN})=200 GeV. We observe both exclusive photoproduction and photoproduction accompanied by mutual Coulomb excitation. We find a coherent cross-section of sigma(AuAu) -> Au^*Au^*rho^0 = 530 pm 19 (stat.) pm 57 (syst.) mb, in accord with theoretical calculations based on a Glauber approach, but considerably below the predictions of a color dipole model. The rho^0 transverse momentum spectrum (p_{T}^2 ) is fit by a double exponential curve including both coherent and incoherent coupling to the target nucleus; we find sigma_{inc}/sigma_{coh} = 0.29 pm 0.03 (stat.) pm 0.08 (syst.). The ratio of direct pi^+pi^- to rho^0 production is comparable to that observed in gamma p collisions at HERA, and appears to be independent of photon energy. Finally, the measured rho^0 spin helicity matrix elements agree within errors with the expected s-channel helicity conservation.
Published: 2008

36. Longitudinal double-spin asymmetry for inclusive jet production in $\vec{p}+\vec{p}$ collisions at $\sqrt{s}$=200 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calderon De La Barca Sanchez, M., Callner, J., Catu, O., Cebra, D., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, S.U., Clarke, R.F., Codrington, M.J.M., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Edwards, W.R., Efimov, L.G., Elhalhuli, E., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gos, H., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, Anupam, Gupta, N., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Horner, M.J., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kurnadi, P., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Yu.A., McShane, T.S., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Pruthi, N.K., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E.P., Simon, F., Singaraju, R.N., Skoby, M.J., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tarnowsky, T., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Tram, V.N., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Yurevich, V.I., Zawisza, M., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment, High Energy Physics - Experiment
Abstract: We report a new STAR measurement of the longitudinal double-spin asymmetry A_LL for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt(s) = 200 GeV. The data, which cover jet transverse momenta 5 < p_T < 30 GeV/c, are substantially more precise than previous measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit of polarized deep-inelastic scattering measurements., 7 pages, 4 figures + 1 table
Published: 2008

37. Spin alignment measurements of the $K^{*0}(892)$ and $\phi(1020)$ vector mesons in heavy ion collisions at $\sqrt{^{S}NN}$=200 GeV

Author: I. Abelev, B., M. Aggarwal, M., Ahammed, Z., D. Anderson, B., Arkhipkin, D., S. Averichev, G., Bai, Y., Balewski, J., Barannikova, O., S. Barnby, L., Baudot, J., Baumgart, S., R. Beavis, D., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., Biritz, B., C. Bland, L., Bombara, M., E. Bonner, B., Botje, M., Bouchet, J., Braidot, E., V. Brandin, A., Bueltmann, S., P. Burton, T., Bystersky, M., Z. Cai, X., Caines, H., Calderón De La Barca Sánchez, M., Callner, J., Catu, O., Cebra, D., Cendejas, R., C. Cervantes, M., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Y. Chen, J., Cheng, J., Cherney, M., Chikanian, A., E. Choi, K., Christie, W., U. Chung, S., F. Clarke, R., J. M. Codrington, M., P. Coffin, J., M. Cormier, T., R. Cosentino, M., G. Cramer, J., J. Crawford, H., Das, D., Dash, S., Daugherity, M., M. De Moura, M., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Derradi De Souza, R., Didenko, L., Dietel, T., Djawotho, P., M. Dogra, S., Dong, X., L. Drachenberg, J., E. Draper, J., Du, F., C. Dunlop, J., R. Dutta Mazumdar, M., R. Edwards, W., G. Efimov, L., Elhalhuli, E., Elnimr, M., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magalie, Eun, L., Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Gagliardi, C.A., Gaillard, L., R. Gangadharan, D., S. Ganti, M., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., N. Gorbunov, Y., Gordon, A., Grebenyuk, O., Grosnick, D., Grube, B., M. Guertin, S., S. F. F. Guimaraes, K., Gupta, Anupam, Gupta, N., Guryn, W., Haag, B., J. Hallman, T., Hamed, A., W. Harris, J., He, W., Heinz, M., Heppelmann, S., Hippolyte, B., Hirsch, A., M. Hoffman, A., W. Hoffmann, G., J. Hofman, D., S. Hollis, R., Z. Huang, H., W. Hughes, E., J. Humanic, T., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jin, F., G. Jones, P., G. Judd, E., Kabana, S., Kajimoto, K., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Yu. Khodyrev, V., Kiryluk, J., Kisiel, A., R. Klein, S., G. Knospe, A., Kocoloski, A., D. Koetke, D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kravtsov, P., I. Kravtsov, V., Krueger, K., Kuhn, C., Kumar, A., Kumar, L., Kurnadi, P., Lamont, M.A. C., M. Landgraf, J., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., J. Levine, M., Li, C., Li, Y., Lin, G., Lin, X., J. Lindenbaum, S., A. Lisa, M., Liu, F., Liu, Hong, Liu, J., Liu, L., Ljubicic, T., J. Llope, W., S. Longacre, R., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., L. Ma, G., G. Ma, J., G. Ma, Y., P. Mahapatra, D., Majka, R., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., S. Matis, H., A. Matulenko, Yu., S. Mcshane, T., Meschanin, A., Millane, J., L. Miller, M., G. Minaev, N., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., Nepali, C., K. Netrakanti, P., J. Ng, M., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okada, H., Okorokov, V., Olson, D., Pachr, M., K. Pal, S., Panebratsev, Y., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Planinic, M., Pluta, J., Poljak, N., Porile, N., M. Poskanzer, A., Potekhin, M., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., K. Pruthi, N., Putschke, J., A. Qattan, I., Raniwala, R., Raniwala, S., L. Ray, R., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Rykov, V., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Schambach, J., P. Scharenberg, R., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shi, S.S., Shi, X.-H., P. Sichtermann, E., Simon, F., N. Singaraju, R., J. Skoby, M., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., Stadnik, A., D. S. Stanislaus, T., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., C. Suarez, M., L. Subba, N., Sumbera, M., M. Sun, X., Sun, Z., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Takahashi, J., H. Tang, A., Tang, Z., Tarnowsky, T., Thein, D., H. Thomas, J., Tian, J., R. Timmins, A., Timoshenko, S., Tokarev, M., Trainor, T.A., N. Tram, V., L. Trattner, A., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., M. Vander Molen, A., Varma, R., M. S. Vasconcelos, G., M. Vasilevski, I., N. Vasiliev, A., Videbaek, F., E. Vigdor, S., P. Viyogi, Y., Vokal, S., Voloshin, S.A., Wada, M., T. Waggoner, W., Wang, F., Wang, G., S. Wang, J., Wang, Q., Wang, X., L. Wang, X., Wang, Y., C. Webb, J., D. Westfall, G., Whitten Jr., C., Wieman, H., W. Wissink, S., Witt, R., Wu, J., Wu, Y., Xu, N., H. Xu, Q., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Zawisza, M., Zbroszczyk, H., Zhan, W., Zhang, H., Zhang, S., M. Zhang, W., Zhang, Y., P. Zhang, Z., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., X. Zuo, J., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 24.70.+s, 25.75.Nq
Abstract: We present the first spin alignment measurements for the $K^{*0}(892)$ and $\phi(1020)$ vector mesons produced at mid-rapidity with transverse momenta up to 5 GeV/c at $\sqrt{s_{NN}}$ = 200 GeV at RHIC. The diagonal spin density matrix elements with respect to the reaction plane in Au+Au collisions are $\rho_{00}$ = 0.32 $\pm$ 0.04 (stat) $\pm$ 0.09 (syst) for the $K^{*0}$ ($0.8
Published: 2008

38. Mass, quark-number, and $\sqrt{s_{NN}}$ dependence of the second and fourth flow harmonics in ultrarelativistic nucleus-nucleus collisions

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Bekele, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Burton, T.P., Bystersky, M., Cadman, R.V., Cai, X.Z., Caines, H., Sanchez, M.C.D.L., Callner, J., Castillo, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, S.U., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Das, S., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Mazumdar, M.R.D., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, N., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D., Hollis, R., Horner, M.J., Huang, H.Z., Huang, S.L., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Y., Kim, B.C., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kurnadi, P., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Liu, Z., Ljubicic, T., Llope, W.J., Long, H., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Magestro, D., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Y.A., McClain, C.J., McShane, T.S., Melnick, Y., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mironov, C., Mischke, A., Mishra, D.K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C.F., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Porter, J., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Qattan, I.A., Rakness, G., Raniwala, R., Raniwala, S., Ray, R.L., Razin, S.V., Reinnarth, J., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Schweda, K., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E.P., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sugarbaker, E., Sumbera, M., Sun, Z., Surrow, B., Swanger, M., Symons, T.J.M., De Toledo, A.S., Takahashi, J., Tang, A.H., Tarnowsky, T., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E, Viyogi, Y.P., Vokal, S., Voloshin, S.A., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Watson, J.W., Webb, J.C., Westfall, G.D., Wetzler, A., Whitten, C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.K., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: STAR, ELLIPTIC FLOW, High Energy Physics::Phenomenology, Nuclear Theory, SIGNATURE, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ANISOTROPIC FLOW, 25.75.Nq, 25.75.Ld, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), PARTICLE IDENTIFICATION, Nuclear Experiment
Abstract: We present STAR measurements of the azimuthal anisotropy parameter $v_2$ for pions, kaons, protons, $\Lambda$, $\bar{\Lambda}$, $\Xi+\bar{\Xi}$, and $\Omega + \bar{\Omega}$, along with $v_4$ for pions, kaons, protons, and $\Lambda + \bar{\Lambda}$ at mid-rapidity for Au+Au collisions at $\sqrt{s_{_{NN}}}=62.4$ and 200 GeV. The $v_2(p_T)$ values for all hadron species at 62.4 GeV are similar to those observed in 130 and 200 GeV collisions. For observed kinematic ranges, $v_2$ values at 62.4, 130, and 200 GeV are as little as 10%--15% larger than those in Pb+Pb collisions at $\sqrt{s_{_{NN}}}=17.3$ GeV. At intermediate transverse momentum ($p_T$ from 1.5--5 GeV/c), the 62.4 GeV $v_2(p_T)$ and $v_4(p_T)$ values are consistent with the quark-number scaling first observed at 200 GeV. A four-particle cumulant analysis is used to assess the non-flow contributions to pions and protons and some indications are found for a smaller non-flow contribution to protons than pions. Baryon $v_2$ is larger than anti-baryon $v_2$ at 62.4 and 200 GeV perhaps indicating either that the initial spatial net-baryon distribution is anisotropic, that the mechanism leading to transport of baryon number from beam- to mid-rapidity enhances $v_2$, or that anti-baryon and baryon annihilation is larger in the in-plane direction., Comment: 12 pages, 8 figures, submitted for publication in Phys. Rev. C
Published: 2007

39. Global polarization measurement in Au+Au collisions

Author: Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., Anderson, M., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Bekele, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Bystersky, M., Cadman, R.V., Cai, X.Z., Caines, H., Calderon de la Barca Sanchez, M., Castillo, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Das, S., Daugherity, M., de Moura, M.M., Dedovich, T.G., DePhillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, W.J., Dong, X., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Ghazikhanian, V., Ghosh, P., Gonzalez, J.S., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S.M., Guimaraes, K.S.F.F., Guo, Y., Gupta, N., Gutierrez, T.D., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Horner, M.J., Huang, H.Z., Huang, S.L., Hughes, E.W., Humanic, T.J., Igo, G., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jiang, H., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Khodyrev, V.Yu., Kim, B.C., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytin, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kramer, M., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kuznetsov, A.A., Lamong, M.A.C., Landgraf, J.M., Lange, S., LaPointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, f., Liu, H., Liu, J., Liu, L., Liu, Z., Ljubicic, T., Llope, W.J., Long, H., Longarche, R.S., Lopez-Noriega, M., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Magestro, D., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, L., Matis, H.S., Matulenko, Yu.A., McClain, C.J., McShane, T.S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mironov, C., Mischke, A., Mishra, D.K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C.F., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Netrakanti, P.K., Nikitin, V.A., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Panitkin, S.Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V.A., Phatak, S.C., Picha, R., Planinic, M., Pluta, J., Poljak, N., Porile, N., Porter, J., Poskanzer, A.M., Potekhin, M., Potrebenikov, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., Ray, R.L., Razin, S.V., Reinnarth, J., Relyea, D., Retiere, F., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Schweda, K., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, A., Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Sugarbaker, E., Sumbera, M., Sun, Z., Surrow, B., Swager, M., Symons, T.J.M., Szanto de Toledo, A., Tai, A., Takahaski, J., Tang, A.H., Tarnowsky, T., Thein, D., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., van der Kolk, N., van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Waggoner, W.T., Wang, F., Wang, G., Wang, J.S., Wang, X.L., Wang, Y., Watson, J.W., Webb, J.C., Westfall, G.D., Wetzler, A., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Q.L., Xu, Z., Yepes, P., Yoo, I.-K., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: upper limit magnetic detector, Nuclear and High Energy Physics, Angular momentum, Star, nucleus nucleus, Nuclear Theory, polarization transverse momentum, Particle, FOS: Physical sciences, K-S(0), Relativistic Nuclear Collisions, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Lambda, 01 natural sciences, polarization Antilambda, colliding beams scattering, hadronic decay angular distribution Lambda, Nuclear physics, Angular distribution, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, heavy ion gold Lambda, Physics, Time projection chamber, Flow, 010308 nuclear & particles physics, Hyperon, hadroproduction Lambda, Polarization (waves), dependence polarization, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, dependence impact parameter, STAR experimental results Brookhaven RHIC Coll 200 GeV-cms/nucleon, Physics, Nuclear, Time Projection Chamber, High Energy Physics::Experiment, Relativistic Heavy Ion Collider, STAR detector
Abstract: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at sqrt{s_NN}=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of Lambda and anti-Lambda hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, |P_{Lambda,anti-Lambda}, 11 pages, 10 figures, 1 table, minor changes, accepted for publication in Phys. Rev. C
Published: 2007

40. Transverse momentum and centrality dependence of high-pt non-photonic electron suppression in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

Author: Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., Anderson, M., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Bekele, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Bystersky, M., Cadman, R.V., Cai, X.Z., Caines, H., Calderon de la Barca Sanchez, M., Castillo, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Das, S., Daugherity, M., de Moura, M.M., Dedovich, T.G., DePhillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, W.J., Dong, X., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Ghazikhanian, V., Ghosh, P., Gonzalez, J.S., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S.M., Guimaraes, K.S.F.F., Guo, Y., Gupta, N., Gutierrez, T.D., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Horner, M.J., Huang, H.Z., Huang, S.L., Hughes, E.W., Humanic, T.J., Igo, G., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jiang, H., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Khodyrev, V.Yu., Kim, B.C., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytin, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kramer, M., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kuznetsov, A.A., Lamong, M.A.C., Landgraf, J.M., Lange, S., LaPointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, f., Liu, H., Liu, J., Liu, L., Liu, Z., Ljubicic, T., Llope, W.J., Long, H., Longarche, R.S., Lopez-Noriega, M., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Magestro, D., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, L., Matis, H.S., Matulenko, Yu.A., McClain, C.J., McShane, T.S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mironov, C., Mischke, A., Mishra, D.K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C.F., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Netrakanti, P.K., Nikitin, V.A., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Panitkin, S.Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V.A., Phatak, S.C., Picha, R., Planinic, M., Pluta, J., Poljak, N., Porile, N., Porter, J., Poskanzer, A.M., Potekhin, M., Potrebenikov, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., Ray, R.L., Razin, S.V., Reinnarth, J., Relyea, D., Retiere, F., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Schweda, K., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, A., Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Sugarbaker, E., Sumbera, M., Sun, Z., Surrow, B., Swager, M., Symons, T.J.M., Szanto de Toledo, A., Tai, A., Takahaski, J., Tang, A.H., Tarnowsky, T., Thein, D., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., van der Kolk, N., van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Waggoner, W.T., Wang, F., Wang, G., Wang, J.S., Wang, X.L., Wang, Y., Watson, J.W., Webb, J.C., Westfall, G.D., Wetzler, A., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Q.L., Xu, Z., Yepes, P., Yoo, I.-K., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The STAR collaboration at RHIC reports measurements of the inclusive yield of non-photonic electrons, which arise dominantly from semi-leptonic decays of heavy flavor mesons, over a broad range of transverse momenta ($1.2 < \pt < 10$ \gevc) in \pp, \dAu, and \AuAu collisions at \sqrtsNN = 200 GeV. The non-photonic electron yield exhibits unexpectedly large suppression in central \AuAu collisions at high \pt, suggesting substantial heavy quark energy loss at RHIC. The centrality and \pt dependences of the suppression provide constraints on theoretical models of suppression., Published to Phys. Rev. Lett. Revised version after comments from referees Erratum submitted to PRL
Published: 2007

41. Energy dependence of $\pi^{\pm}$, $p$ and $\bar{p}$ transverse momentum spectra for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 and 200 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baumgart, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Betts, R.R., Bharadwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Billmeier, A., Bland, L.C., Blyth, S.-L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Burton, T.P., Bystersky, M., Cadman, R.V., Cai, X.Z., Caines, H., Calderon De La Barca Sanchez, M., Callner, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Choi, H.A., Christie, W., Chung, S.U., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fornazier, K.S.F., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, N., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D., Hollis, R., Horner, M.J., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jiang, H., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kim, B.C., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kramer, M., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kurnadi, P., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Long, H., Longacre, R.S., Lopez-Noriega, M., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Yu.A., McClain, C.J., McShane, T.S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mironov, C., Mischke, A., Mitchell, J., Mohanty, B., Molnar, L., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Nikitin, V.A., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Panitkin, S.Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Razin, S.V., Reinnarth, J., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Savin, I., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tarnowsky, T., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Watson, J.W., Webb, J.C., Westfall, G.D., Wetzler, A., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Jet quenching, Particle ratios, Fragmentation, Astrophysics::High Energy Astrophysical Phenomena, Nuclear modification factor, High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Particle production, Recombination
Abstract: We study the energy dependence of the transverse momentum $(p_T)$ spectra for charged pions, protons and anti-protons for Au+Au collisions at $\sqrt{S_{NN}$=62.4 and 200 GeV. Data are presented at mid-rapidity (|y
Published: 2007

42. Rapidity and species dependence of particle production at large transverse momentum for $d$+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

Author: Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., Anderson, M., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Bekele, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Bystersky, M., Cadman, R.V., Cai, X.Z., Caines, H., Calder'On De La Barca S'Anchez, M., Castillo, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Das, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, W.J., Dong, X., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Ghazikhanian, V., Ghosh, P., Gonzalez, J.E., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S.M., Guimaraes, K.S.F.F., Guo, Y., Gupta, N., Gutierrez, T.D., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Horner, M.J., Huang, H.Z., Huang, S.L., Hughes, E.W., Humanic, T.J., Igo, G., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jiang, H., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Khodyrev, V.Yu., Kim, B.C., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kramer, M., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Liu, Z., Ljubicic, T., Llope, W.J., Long, H., Longacre, R.S., Lopez-Noriega, M., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Magestro, D., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Yu.A., McClain, C.J., McShane, T.S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mironov, C., Mischke, A., Mishra, D.K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C.F., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Netrakanti, P.K., Nikitin, V.A., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Panitkin, S.Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V.A., Phatak, S.C., Picha, R., Planinic, M., Pluta, J., Poljak, N., Porile, N., Porter, J., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., Ray, R.L., Razin, S.V., Reinnarth, J., Relyea, D., Retiere, F., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Schweda, K., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Sugarbaker, E., Sumbera, M., Sun, Z., Surrow, B., Swanger, M., Symons, T.J.M., Szanto De Toledo, A., Tai, A., Takahashi, J., Tang, A.H., Tarnowsky, T., Thein, D., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Watson, J.W., Webb, J.C., Westfall, G.D., Wetzler, A., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: Nuclear Theory, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We determine rapidity asymmetry in the production of charged pions, protons and anti-protons for large transverse momentum (pT) for d+Au collisions at \sqrt s_NN = 200 GeV. The identified hadrons are measured in the rapidity regions |y| < 0.5 and 0.5 < |y| < 1.0 for the pT range 2.5 < pT < 10 GeV/c. We observe significant rapidity asymmetry for charged pion and proton+anti-proton production in both rapidity regions. The asymmetry is larger for 0.5 < |y| < 1.0 than for |y|< 0.5 and is almost independent of particle type. The measurements are compared to various model predictions employing multiple scattering, energy loss, nuclear shadowing, saturation effects, and recombination, and also to a phenomenological parton model. We find that asymmetries are sensitive to model parameters and show model-preference. The rapidity dependence of ��^{-}/��^{+} and \bar{p}/p ratios in peripheral d+Au and forward neutron-tagged events are used to study the contributions of valence quarks and gluons to particle production at high pT. The results are compared to calculations based on NLO pQCD and other measurements of quark fragmentation functions., 14 pages and 13 figures
Published: 2007

43. Scaling properties of hyperon production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV

Author: Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., Anderson, M., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Bekele, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Bezverkhny, B.I., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, C.O., Blyth, S.L., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Bystersky, M., Cadman, R.V., Cai, X.Z., Caines, H., Sanchez, M.C.D., Castillo, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, Y., Cheng, J., Cherney, M., Chikanian, A., Choi, H.A., Christie, W., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Das, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, W.J., Dong, X., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Mazumdar, M.R.D., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Gans, J., Ganti, M.S., Ghazikhanian, V., Ghosh, P., Gonzalez, J.E., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S.M., Guimaraes, K.S.F.F., Guo, Y., Gupta, N., Gutierrez, T.D., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G.W., Horner, M.J., Huang, H.Z., Huang, S.L., Hughes, E.W., Humanic, T.J., Igo, G., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jiang, H., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Khodyrev, V.Y., Kim, B.C., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kramer, M., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Liu, Z., Ljubicic, T., Llope, W.J., Long, H., Longacre, R.S., Lopez-Noriega, M., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Magestro, D., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Y.A., McClain, C.J., McShane, T.S., Melnick, Y., Meschanin, A., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mironov, C., Mischke, A., Mishra, D.K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C.F., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Netrakanti, P.K., Nikitin, V.A., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Panitkin, S.Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V.A., Phatak, S.C., Picha, R., Planinic, M., Pluta, J., Poljak, N., Porile, N., Porter, J., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., Ray, R.L., Razin, S.V., Reinnarth, J., Relyea, D., Retiere, F., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Schweda, K., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Sugarbaker, E., Sumbera, M., Sun, Z., Surrow, B., Swanger, M., Symons, T.J.M., De Toledo, A.S., Tai, A., Takahashi, J., Tang, A.H., Tarnowsky, T., Thein, D., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Van Der Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Watson, J.W., Webb, J.C., Westfall, G.D., Wetzler, A., Whitten, C., Wieman, H., Wissink, S.W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.K., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: PB-PB COLLISIONS, AU COLLISIONS, Nuclear Theory, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], HADRON-PRODUCTION, SYSTEM-SIZE DEPENDENCE, STRANGENESS ENHANCEMENT, RAPIDITY, 25.75.Dw, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: We present the scaling properties of Lambda, Xi, Omega and their anti-particles produced at mid-rapidity in Au+Au collisions at RHIC at sqrt(s_NN) = 200 GeV. The yield of multi-strange baryons per participant nucleon increases from peripheral to central collisions more rapidly than the Lambda yield, which appears to correspond to an increasing strange quark density of matter produced. The value of the strange phase space occupancy factor gamma_s, obtained from a thermal model fit to the data, approaches unity for the most central collisions. We also show that the nuclear modification factors, R_CP, of Lambda and Xi are consistent with each other and with that of protons in the transverse momentum range 2.0 < p_T < 5.0 GeV/c. This scaling behaviour is consistent with a scenario of hadron formation from constituent quark degrees of freedom through quark recombination or coalescence., 6 pages, 3 figures, submitted to PRL
Published: 2007

44. Forward $\Lambda$ Production and Nuclear Stopping Power in d + Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.-L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Burton, T.P., Bystersky, M., Cai, X.Z., Caines, H., Calderon De La Barca Sanchez, M., Callner, J., Catu, O., Cebra, D., Cervantes, M.C., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, S.U., Clarke, R.F., Codrington, M.J.M., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Dutta Mazumdar, M.R., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.N., Gos, H., Grebenyuk, O., Grosnick, D., Grube, B., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, N., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D.J., Hollis, R.S., Horner, M.J., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Yu., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kurnadi, P., Kuznetsov, A.A., Lamont, M.A.C., Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Yu.A., McClain, C.J., McShane, T.S., Melnick, Yu., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, C., Netrakanti, P.K., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Pruthi, N.K., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E.P., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., Szanto De Toledo, A., Takahashi, J., Tang, A.H., Tarnowsky, T., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Wada, M., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Webb, J.C., Westfall, G.D., Whitten Jr., C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.-K., Yue, Q., Yurevich, V.I., Zawisza, M., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: 25.75.Dw, Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We report the measurement of Lamda and Anti-Lamda yields and inverse slope parameters in d + Au collisions at sqrt(s_NN) = 200 GeV at forward and backward rapidities (y = +- 2.75), using data from the STAR forward time projection chambers. The contributions of different processes to baryon transport and particle production are probed exploiting the inherent asymmetry of the d + Au system. Comparisons to model calculations show that the baryon transport on the deuteron side is consistent with multiple collisions of the deuteron nucleons with gold participants. On the gold side HIJING based models do not describe the measured particle yields while models with initial state nuclear effects and/or hadronic rescattering do. The multichain model can provide a good description of the net baryon density in d + Au collisions at energies available at the BNL Relativistic Heavy Ion Collider, and the derived parameters of the model agree with those from nuclear collisions at lower energies., Comment: 11 pages, 7 figures, 3 tables, published in Physical Review C, v2: updated text and figures
Published: 2007

45. Strangelet search in Au plus Au collisions at $\sqrt{S_{NN}}$=200 GeV

Author: Abelev, B.I., Aggarwal, M.M., Ahammed, Z., Anderson, B.D., Arkhipkin, D., Averichev, G.S., Bai, Y., Balewski, J., Barannikova, O., Barnby, L.S., Baudot, J., Baumgart, S., Belaga, V.V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Betts, R.R., Bhardwaj, S., Bhasin, A., Bhati, A.K., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L.C., Blyth, S.L., Bombara, M., Bonner, B.E., Botje, M., Bouchet, J., Brandin, A.V., Bravar, A., Burton, T.P., Bystersky, M., Cadman, R.V., Cai, X.Z., Caines, H., Sanchez, M.C.D., Callner, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H.F., Chen, J.H., Chen, J.Y., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chung, S.U., Coffin, J.P., Cormier, T.M., Cosentino, M.R., Cramer, J.G., Crawford, H.J., Das, D., Dash, S., Daugherity, M., De Moura, M.M., Dedovich, T.G., Dephillips, M., Derevschikov, A.A., Didenko, L., Dietel, T., Djawotho, P., Dogra, S.M., Dong, X., Drachenberg, J.L., Draper, J.E., Du, F., Dunin, V.B., Dunlop, J.C., Mazumdar, M.R.D., Eckardt, V., Edwards, W.R., Efimov, L.G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Feng, A., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., Ganti, M.S., Garcia-Solis, E., Ghazikhanian, V., Ghosh, P., Gorbunov, Y.G., Gos, H., Grebenyuk, O., Grosnick, D., Guertin, S.M., Guimaraes, K.S.F.F., Gupta, N., Haag, B., Hallman, T.J., Hamed, A., Harris, J.W., He, W., Heinz, M., Henry, T.W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffman, A.M., Hoffmann, G.W., Hofman, D., Hollis, R., Horner, M.J., Huang, H.Z., Hughes, E.W., Humanic, T.J., Igo, G., Iordanova, A., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jones, P.G., Judd, E.G., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Kettler, D., Khodyrev, V.Y., Kim, B.C., Kiryluk, J., Kisiel, A., Kislov, E.M., Klein, S.R., Knospe, A.G., Kocoloski, A., Koetke, D.D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., Kowalik, K.L., Kravtsov, P., Kravtsov, V.I., Krueger, K., Kuhn, C., Kulikov, A.I., Kumar, A., Kurnadi, P., Kuznetsov, A.A., Lamont, M.A.C, Landgraf, J.M., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.H., Lehocka, S., LeVine, M.J., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., Lindenbaum, S.J., Lisa, M.A., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Ljubicic, T., Llope, W.J., Longacre, R.S., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., Ma, G.L., Ma, J.G., Ma, Y.G., Mahapatra, D.P., Majka, R., Mangotra, L.K., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Matis, H.S., Matulenko, Y.A., McClain, C.J., McShane, T.S., Melnick, Y., Meschanin, A., Millane, J., Miller, M.L., Minaev, N.G., Mioduszewski, S., Mironov, C., Mischke, A., Mitchell, J., Mohanty, B., Morozov, D.A., Munhoz, M.G., Nandi, B.K., Nattrass, C., Nayak, T.K., Nelson, J.M., Nepali, N.S., Netrakanti, P.K., Nogach, L.V., Nurushev, S.B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., Pal, S.K., Panebratsev, Y., Pavlinov, A.I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Phatak, S.C., Planinic, M., Pluta, J., Poljak, N., Porile, N., Poskanzer, A.M., Potekhin, M., Potrebenikova, E., Potukuchi, B.V.K.S., Prindle, D., Pruneau, C., Putschke, J., Qattan, I.A., Raniwala, R., Raniwala, S., Ray, R.L., Relyea, D., Ridiger, A., Ritter, H.G., Roberts, J.B., Rogachevskiy, O.V., Romero, J.L., Rose, A., Roy, C., Ruan, L., Russcher, M.J., Sahoo, R., Sakrejda, I., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., Sazhin, P.S., Schambach, J., Scharenberg, R.P., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Shen, W.Q., Shimanskiy, S.S., Sichtermann, E.P., Simon, F., Singaraju, R.N., Smirnov, N., Snellings, R., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H.M., Srivastava, B., Stadnik, A., Stanislaus, T.D.S., Staszak, D., Stock, R., Strikhanov, M., Stringfellow, B., Suaide, A.A.P., Suarez, M.C., Subba, N.L., Sumbera, M., Sun, X.M., Sun, Z., Surrow, B., Symons, T.J.M., De Toledo, A.S., Szeliga, B., Takahashi, J., Tang, A.H., Tarnowsky, T., Thomas, J.H., Timmins, A.R., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., Tribble, R.E., Tsai, O.D., Ulery, J., Ullrich, T., Underwood, D.G., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., Vander Molen, A.M., Varma, R., Vasilevski, I.M., Vasiliev, A.N., Vernet, R., Vigdor, S.E., Viyogi, Y.P., Vokal, S., Voloshin, S.A., Waggoner, W.T., Wang, F., Wang, Gang, Wang, J.S., Wang, X.L., Wang, Y., Watson, J.W., Webb, J.C., Westfall, G.D., Wetzler, A., Whitten, C., Wieman, H., Wissink, S.W., Witt, R., Wu, J., Wu, Y., Xu, N., Xu, Q.H., Xu, Z., Yepes, P., Yoo, I.K., Yue, Q., Yurevich, V.I., Zhan, W., Zhang, H., Zhang, W.M., Zhang, Y., Zhang, Z.P., Zhao, Y., Zhong, C., Zhou, J., Zoulkarneev, R., Zoulkarneeva, Y., Zubarev, A.N., Zuo, J.X., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: AGS, Physics::Instrumentation and Detectors, Nuclear Theory, DROPLETS, DROPS, HEAVY-ION COLLISIONS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 25.75.Dw, LIGHT-NUCLEUS PRODUCTION, SEPARATION, Physics::Accelerator Physics, QUARK-MATTER, PARTICLES, High Energy Physics::Experiment, Nuclear Experiment
Abstract: We have searched for strangelets in a triggered sample of 61 million central (top 4%) Au+Au collisions at root s(NN)=200 GeV near beam rapidities at the STAR solenoidal tracker detector at the BNL Relativistic Heavy Ion Collider. We have sensitivity to metastable strangelets with lifetimes of order >= 0.1 ns, in contrast to limits over ten times longer in BNL Alternating Gradient Synchrotron (AGS) studies and longer still at the CERN Super Proton Synchrotron (SPS). Upper limits of a few 10(-6) to 10(-7) per central Au+Au collision are set for strangelets with mass greater than or similar to 30 GeV/c(2).
Published: 2007

46. Longitudinal Double-Spin Asymmetry and Cross Section for Inclusive Jet Production in Polarized Proton Collisions at $\sqrt{s}$ =200 GeV

Author: I. Abelev, B., M. Aggarwal, M., Ahammed, Z., Amonett, J., D. Anderson, B., Anderson, M., Arkhipkin, D., S. Averichev, G., Bai, Y., Balewski, J., Barannikova, O., S. Barnby, L., Baudot, J., Bekele, S., V. Belaga, V., Bellingeri-Laurikainen, A., Bellwied, R., Benedosso, F., Bhardwaj, S., Bhasin, A., K. Bhati, A., Bichsel, H., Bielcik, J., Bielcikova, J., C. Bland, L., Blyth, S.-L., E. Bonner, B., Botje, M., Bouchet, J., V. Brandin, A., Bravar, A., P. Burton, T., Bystersky, M., V. Cadman, R., Z. Cai, X., Caines, H., Calderón De La Barca Sánchez, M., Castillo, J., Catu, O., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., F. Chen, H., H. Chen, J., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Coffin, J.P., M. Cormier, T., R. Cosentino, M., G. Cramer, J., J. Crawford, H., Das, D., Das, S., Dash, S., Daugherity, M., M. De Moura, M., G. Dedovich, T., Dephillips, M., A. Derevschikov, A., Didenko, L., Dietel, T., Djawotho, P., M. Dogra, S., J. Dong, W., Dong, X., E. Draper, J., Du, F., B. Dunin, V., C. Dunlop, J., R. Dutta Mazumdar, M., Eckardt, V., R. Edwards, W., G. Efimov, L., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Fatemi, R., Fedorisin, J., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fu, J., Gagliardi, C.A., Gaillard, L., S. Ganti, M., Ghazikhanian, V., Ghosh, P., E. Gonzalez, J., G. Gorbunov, Y., Gos, H., Grebenyuk, O., Grosnick, D., M. Guertin, S., S. F. F. Guimaraes, K., Gupta, N., D. Gutierrez, T., Haag, B., J. Hallman, T., Hamed, A., W. Harris, J., He, W., Heinz, M., W. Henry, T., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., M. Hoffman, A., W. Hoffmann, G., J. Horner, M., Z. Huang, H., L. Huang, S., W. Hughes, E., J. Humanic, T., Igo, G., Jacobs, P., Jacobs, W.W., Jakl, P., Jia, F., Jiang, H., G. Jones, P., G. Judd, E., Kabana, S., Kang, K., Kapitan, J., Kaplan, M., Keane, D., Kechechyan, A., Yu. Khodyrev, V., C. Kim, B., Kiryluk, J., Kisiel, A., M. Kislov, E., R. Klein, S., Kocoloski, A., D. Koetke, D., Kollegger, T., Kopytine, M., Kotchenda, L., Kouchpil, V., L. Kowalik, K., Kramer, M., Kravtsov, P., I. Kravtsov, V., Krueger, K., Kuhn, C., I. Kulikov, A., Kumar, A., A. Kuznetsov, A., Lamont, M.A. C., M. Landgraf, J., Lange, S., Lapointe, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lee, C.-H., Lehocka, S., J. Levine, M., Li, C., Li, Q., Li, Y., Lin, G., Lin, X., J. Lindenbaum, S., A. Lisa, M., Liu, Franklin, Liu, Hong, Liu, J., Liu, L., Liu, Z., Ljubicic, T., J. Llope, W., Long, H., S. Longacre, R., Love, W.A., Lu, Y., Ludlam, T., Lynn, D., L. Ma, G., G. Ma, J., G. Ma, Y., Magestro, D., P. Mahapatra, D., Majka, R., K. Mangotra, L., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, S. Matis, H., A. Matulenko, Yu., J. Mcclain, C., S. Mcshane, T., Melnick, Yu., Meschanin, A., Millane, J., L. Miller, M., G. Minaev, N., Mioduszewski, S., Mironov, C., Mischke, A., K. Mishra, D., Mitchell, J., Mohanty, B., Molnar, L., F. Moore, C., Morozov, D.A., G. Munhoz, M., K. Nandi, B., Nattrass, C., K. Nayak, T., M. Nelson, J., K. Netrakanti, P., V. Nogach, L., B. Nurushev, S., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pachr, M., K. Pal, S., Panebratsev, Y., Y. Panitkin, S., I. Pavlinov, A., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., C. Phatak, S., Picha, R., Planinic, M., Pluta, J., Poljak, N., Porile, N., Porter, J., M. Poskanzer, A., Potekhin, M., Potrebenikova, E., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., L. Ray, R., V. Razin, S., Reinnarth, J., Relyea, D., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevskiy, O., L. Romero, J., Rose, A., Roy, C., Ruan, L., J. Russcher, M., Sahoo, R., Sakuma, T., Salur, S., Sandweiss, J., Sarsour, M., S. Sazhin, P., Schambach, J., P. Scharenberg, R., Schmitz, N., Seger, J., Selyuzhenkov, I., Seyboth, P., Shabetai, Alexandre, Shahaliev, E., Shao, M., Sharma, M., Q. Shen, W., Shimanskiy, S.S., P. Sichtermann, E., Simon, F., N. Singaraju, R., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., M. Spinka, H., Srivastava, B., Stadnik, A., D. S. Stanislaus, T., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., A. P. Suaide, A., Sugarbaker, E., Sumbera, M., Sun, Z., Surrow, B., Swanger, M., Symons, T.J.M., Szanto De Toledo, A., Tai, A., Takahashi, J., H. Tang, A., Tarnowsky, T., Thein, D., H. Thomas, J., R. Timmins, A., Timoshenko, S., Tokarev, M., Trainor, T.A., Trentalange, S., E. Tribble, R., D. Tsai, O., Ulery, J., Ullrich, T., G. Underwood, D., Van Buren, G., Van Der Kolk, N., Van Leeuwen, M., M. Vander Molen, A., Varma, R., M. Vasilevski, I., N. Vasiliev, A., Vernet, R., E. Vigdor, S., P. Viyogi, Y., Vokal, S., Voloshin, S.A., T. Waggoner, W., Wang, F., Wang, Gang, S. Wang, J., L. Wang, X., Wang, Y., W. Watson, J., C. Webb, J., D. Westfall, G., Wetzler, A., Whitten, C., Wieman, H., W. Wissink, S., Witt, R., Wood, J., Wu, J., Xu, N., H. Xu, Q., Xu, Z., Yepes, P., Yoo, I.-K., I. Yurevich, V., Zhan, W., Zhang, H., M. Zhang, W., Zhang, Y., P. Zhang, Z., Zhao, Y., Zhong, C., Zoulkarneev, R., Zoulkarneeva, Y., N. Zubarev, A., X. Zuo, J., Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Physics - Experiment (hep-ex), PAIR, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, PHOTOPRODUCTION, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, 13.87.Ce, 12.38.Qk, 13.85.Hd, 13.88.+e, Nuclear Experiment, NUCLEON, High Energy Physics - Experiment
Abstract: We report a measurement of the longitudinal double-spin asymmetry A_LL and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at sqrt(s)=200 GeV. The cross section data cover transverse momenta 5 < pT < 50 GeV/c and agree with next-to-leading order perturbative QCD evaluations. The A_LL data cover 5 < pT < 17 GeV/c and disfavor at 98% C.L. maximal positive gluon polarization in the polarized nucleon., 6 pages, 3 figures. Minor changes from review process in Phys. Rev. Lett. Plain text tables of data in STAR publications may be found at http://www.star.bnl.gov/central/publications/
Published: 2006

47. The Q$^2$-Dependence of the Neutron Spin Structure Function g$_2^n$ at Low Q$^2$

Author: Kramer, K., Armstrong, D., Averett, T., Bertozzi, W., Binet, S., Butuceanu, C., Camsonne, A., Cates, G., Chen, J.-P., Choi, S., Chudakov, E., Cusanno, F., Deur, A., Djawotho, P., Dutta, D., Finn, J., Gao, H., Garibaldi, F., Gayou, O., Gilman, R., Glamazdin, O., Gorbenko, V., Griffioen, K., Hansen, J.-O., Higinbotham, D., Hinton, W., Horn, T., De Jager, C., Jiang, X., Korsch, W., LeRose, J., Lhuillier, D., Liyanage, N., Margaziotis, D., McCormick, K., Meziani, Z.-E., Michaels, R., Milbrath, B., Moffit, B., Nanda, S., Perdrisat, C., Pomatsalyuk, R., Punjabi, V., Reitz, B., Roche, J., Roche, R., Roedelbronn, M., Savvinov, N., Secrest, D., Singh, J., Sirca, S., Slifer, K., Solvignon, P., Steiner, D., Suleiman, R., Sulkosky, V., Tobias, W., Vacheret, A., Xiao, Y., Zheng, X., Y. Zhou, J., Zhu, L., Zhu, X., Zolnierczuk, P., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and HALL A
Subjects: High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, 13.60.Hb, 14.20.Dh, 13.88.+e, 24.85.+p, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: We present the first measurement of the Q^2-dependence of the neutron spin structure function g_2^n at five kinematic points covering 0.57 (GeV/c)^2, 5 pages, 3 figures
Published: 2005

48. Quasielastic $^{3}He(e,e'p)^{2}H$ reaction at Q2=1.5 GeV2 for recoil momenta up to 1 GeV/c

Author: Rvachev, M.M., Benmokhtar, F., Penel-Nottaris, E., Aniol, K.A., Bertozzi, W., Boeglin, W.U., Butaru, F., Calarco, J.R., Chai, Z., Chang, C.C., Chen, J.P., Chudakov, E., Cisbani, E., Cochran, A., Cornejo, J., Dieterich, S., Djawotho, P., Duran, W., Epstein, M.B., Finn, J.M., Fissum, K.G., Frahi-Amroun, A., Frullani, S., Furget, C., Garibaldi, F., Gayou, O., Gilad, S., Gilman, R., Glashausser, C., Hansen, J.O., Higinbotham, D.W., Hotta, A., Hu, B., Iodice, M., Iomni, R., De Jager, C.W., Jiang, X., Jones, M.K., Kelly, J.J., Kox, S., Kuss, M., Laget, J.M., De Leo, R., LeRose, J.J., Liatard, E., Lindgren, R., Liyanage, N., Lourie, R.W., Malov, S., J. Margaziotis, D., Markowitz, P., Merchez, F., Michaels, R., Mitchell, J., Mougey, J., Perdrisat, C.F., Punjabi, V.A., Quéméner, G., Ransome, R.D., Réal, J.S., Roché, R., Sabatié, F., Saha, A., Simon, D., Strauch, S., Suleiman, R., Tamae, T., Templon, J.A., Tieulent, R., Ueno, H., Ulmer, P.E., Urciuoli, G.M., Voutier, E., Wijesooriya, K., Wojtsekhowski, B., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and HALL A
Subjects: electron-nucleus reactions, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, nuclei with mass number 1 to 5, 21.45.+v, 25.30.Dh, 27.10.+h
Abstract: We have studied the quasielastic $^{3}He(e,e'p)^{2}H$ reaction in perpendicular coplanar kinematics, with the energy and the momentum transferred by the electron fixed at 840 MeV and 1502 MeV/c, respectively. The $^{3}He(e,e'p)^{2}H$ cross section was measured for missing momenta up to 1000 MeV/c, while the ATL asymmetry was extracted for missing momenta up to 660 MeV/c. For missing momenta up to 150 MeV/c, the cross section is described by variational calculations using modern 3He wave functions. For missing momenta from 150 to 750 MeV/c, strong final-state interaction effects are observed. Near 1000 MeV/c, the experimental cross section is more than an order of magnitude larger than predicted by available theories. The ATL asymmetry displays characteristic features of broken factorization with a structure that is similar to that generated by available models.
Published: 2005

49. $Q^2$ evolution of the neutron spin structure moments using a $^3He$ target

Author: Amarian, M., Auerbach, L., Averett, T., Berthot, J., Bertin, P., Bertozzi, B., Black, T., Brash, E., Brown, D., Burtin, E., Calarco, J., Cates, G., Chai, Z., Chen, J. -P, Choi, S., Chudakov, E., Cisbani, E., Jager, C. W., Deur, A., Disalvo, R., Dieterich, S., Djawotho, P., Finn, M., Fissum, K., Fonvieille, H., Frullani, S., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Alexander Glamazdin, Glashausser, C., Goldberg, E., Gomez, J., Gorbenko, V., Hansen, J. -O, Hersman, B., Holmes, R., Huber, G. M., Hughes, E., Humensky, B., Incerti, S., Iodice, M., Jensen, S., Jiang, X., Jones, C., Jones, G., Jones, M., Jutier, C., Ketikyan, A., Kominis, I., Korsch, W., Kramer, K., Kumar, K., Kumbartzki, G., Kuss, M., Lakuriqi, E., Laveissiere, G., Lerose, J., Liang, M., Liyanage, N., Lolos, G., Malov, S., Marroncle, J., Mccormick, K., Mckeown, R., Meziani, Z. -E, Michaels, R., Mitchell, J., Papandreou, Z., Pavlin, T., Petratos, G. G., Pripstein, D., Prout, D., Ransome, R., Roblin, Y., Rowntree, D., Rvachev, M., Sabatie, F., Saha, A., Slifer, K., Souder, P., Saito, T., Strauch, S., Suleiman, R., Takahashi, K., Teijiro, S., Todor, L., Tsubota, H., Ueno, H., Urciuoli, G., Meer, R., Vernin, P., Voskanian, H., Wojtsekhowski, B., Xiong, F., Xu, W., Yang, J. -C, Zhang, B., Zolnierczuk, P., Pellet, Jeanine, Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and E94010
Subjects: High Energy Physics - Experiment (hep-ex), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract: We have measured the spin structure functions $g_1$ and $g_2$ of $^3$He in a double-spin experiment by inclusively scattering polarized electrons at energies ranging from 0.862 to 5.07 GeV off a polarized $^3$He target at a 15.5$^{\circ}$ scattering angle. Excitation energies covered the resonance and the onset of the deep inelastic regions. We have determined for the first time the $Q^2$ evolution of $\Gamma_1(Q^2)=\int_0^{1} g_1(x,Q^2) dx$, $\Gamma_2(Q^2)=\int_0^1 g_2(x,Q^2) dx$ and $d_2 (Q^2) = \int_0^1 x^2[ 2g_1(x,Q^2) + 3g_2(x,Q^2)] dx$ for the neutron in the range 0.1 GeV$^2$ $\leq Q^2 \leq $ 0.9 GeV$^2$ with good precision. $ \Gamma_1(Q^2)$ displays a smooth variation from high to low $Q^2$. The Burkhardt-Cottingham sum rule holds within uncertainties and $d_2$ is non-zero over the measured range., Comment: 5 pages, 2 figures, submitted to Phys. Rev. Lett.. Updated Hermes data in Fig. 2 (top panel) and their corresponding reference. Updated the low x extrapolation error Fig. 2 (middle panel). Corrected references to ChiPT calculations
Published: 2004

50. The dynamics of the quasielastic $^{16}O$(e,e'p) reaction at $Q^2$ $\approx$ 0.8 (GeV/c)$^2$

Author: G. Fissum, K., Liang, M., D. Anderson, B., A. Aniol, K., Auerbach, L., T. Baker, F., Berthot, J., Bertozzi, W., Bertin, P.Y., Bimbot, L., U. Boeglin, W., J. Brash, E., BRETON, Vincent, Breuer, H., Burtin, E., R. Calarco, J., S. Cardman, L., D. Cates, G., Cavata, C., C. Chang, C., Chen, J.-P., Cisbani, E., S. Dale, D., W. De Jager, C., De Leo, R., Deur, A., Diederich, B., Djawotho, P., Domingo, J., Ducret, J.-E., B. Epstein, M., Ewell, L.A., M. Finn, J., Fonvieille, H., Frois, B., Frullani, S., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Gorringe, T., W. Hersman, F., Holmes, R., Holtrop, M., D'Hose, N., Howell, C., M. Huber, G., E. Hyde-Wright, C., Iodice, M., Jaminion, S., K. Jones, M., Joo, K., Jutier, C., Kahl, W., Kato, S., Kelly, J.J., Kerhoas, S., Khandaker, M., Khayat, M., Kino, K., Korsch, W., Kramer, L., S. Kumar, K., Kumbartzki, G., Laveissière, G., Leone, A., LeRose, J.J., Levchuk, L., A. Lindgren, R., Liyanage, N., J. Lolos, G., W. Lourie, R., Madey, R., Maeda, K., Malov, S., M. Manley, D., J. Margaziotis, D., Markowitz, P., Martino, J., S. Mccarthy, J., McCormick, K., McIntyre, J., L. J. Van Der Meer, R., Meziani, Z.-E., Michaels, R., Mougey, J., Nanda, S., Neyret, D., A. J. M. Offermann, E., Papandreou, Z., F. Perdrisat, C., Perrino, R., G. Petratos, G., Platchkov, S., Pomatsalyuk, R., L. Prout, D., A. Punjabi, V., Pussieux, T., Quéméner, G., D. Ransome, R., Ravel, O., Roblin, Y., Roche, R., Rowntree, D., A. Rutledge, G., M. Rutt, P., Saha, A., Saito, T., J. Sarty, A., Serdarevic-Offermann, A., P. Smith, T., Soldi, A., Sorokin, P., Souder, P., Suleiman, R., A. Templon, J., Terasawa, T., Todor, L., Tsubota, H., Ueno, H., E. Ulmer, P., M. Urciuoli, G., Vernin, P., Van Verst, S., Vlahovic, B., Voskanyan, H., W. Watson, J., B. Weinstein, L., Wijesooriya, K., Wojtsekhowski, B., G. Zainea, D., Zeps, V., Zhao, J., Zhou, Z.-L., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), HALL A, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear Theory, 25.30.Fj, 24.70.+s, 27.20.+n, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: The physics program in Hall A at Jefferson Lab commenced in the summer of 1997 with a detailed investigation of the 16O(e,e'p) reaction in quasielastic, constant (q,w) kinematics at Q^2 ~ 0.8 (GeV/c)^2, q ~ 1 GeV/c, and w ~ 445 MeV. Use of a self-calibrating, self-normalizing, thin-film waterfall target enabled a systematically rigorous measurement. Differential cross-section data for proton knockout were obtained for 0 < Emiss < 120 MeV and 0 < pmiss < 350 MeV/c. These results have been used to extract the ALT asymmetry and the RL, RT, RLT, and RL+TT effective response functions. Detailed comparisons of the data with Relativistic Distorted-Wave Impulse Approximation, Relativistic Optical-Model Eikonal Approximation, and Relativistic Multiple-Scattering Glauber Approximation calculations are made. The kinematic consistency of the 1p-shell normalization factors extracted from these data with respect to all available 16O(e,e'p) data is examined. The Q2-dependence of the normalization factors is also discussed., 43 pages, 25 figures, all known typos now corrected
Published: 2004

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