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1. The role of telemedicine and mobile health in the monitoring of sleep-breathing disorders: improving patient outcomes

Author: Villanueva JA, Suarez MC, Garmendia O, Lugo V, Ruiz C, and Montserrat JM
Subjects: lcsh:Medical technology, mHealth, lcsh:R855-855.5, Continuous positive airway pressure, Obstructive sleep apnea, Telemedicine
Abstract: Jair A Villanueva,1,* Monique C Suarez,2,* Onintza Garmendia,2,3 Vera Lugo,2 Concepción Ruiz,2 Josep M Montserrat,2–5 1Unit of Biophysics and Bioengineering, Faculty of Medicine, University of Barcelona, 2Sleep Unit, Respiratory Medicine Department, Hospital Clinic, Barcelona, 3Center for Biomedical Research in Respiratory Diseases (CIBERES), Madrid, 4Faculty of Medicine, University of Barcelona, 5August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain *These authors contributed equally to this work Abstract: Although the concepts are broad, telemedicine and mobile health (mHealth) can be defined as a methodology to provide health care remotely and improve health services and outcomes using telecommunication tools. The widespread adoption of these technologies and current health care challenges, such as the aging population and increasing costs, has encouraged interest in the development of new strategies involving telemedicine. Overall, there is a lack of evidence rigorously assessing the impact of telemedicine and mHealth. Therefore, proper randomized controlled trials, with cost-effectiveness and impact on quality-of-life analysis, are urgently needed. They should also focus on specific populations and their comorbidities, since customizing telemedicine approaches is paramount to ensure success. Obstructive sleep apnea is a highly prevalent chronic condition and the most common of sleep-breathing disorders, and telemedicine and mHealth could play a pivotal role in the different phases of its management. In the future, using new devices capable of signal acquisition and analysis will refine obstructive sleep apnea diagnosis; even smartphones’ built-in sensors could offer improved comfort and the possibility of home sleep monitoring. Continuous positive airway pressure titration could be performed with wireless devices, whose parameters can be changed remotely from sleep centers. Finally, the follow-up phase could be specially improved by telemedicine by using remote continuous positive airway-pressure data, self-management platforms, and mobile applications for patient feedback. Incorporating new procedures with novel technologies and sensors will probably change the process. Instead of replicating traditional visits, mHealth may provide shorter and more frequent assessments; alarm systems on the patients’ devices could alert physicians or mobile applications with simple questionnaires may help on follow-up. With telemedicine, patients will not be treated in the same way. Keywords: mHealth, telemedicine, obstructive sleep apnea, continuous positive airway pressure
Published: 2017

2. Event-plane-dependent dihadron correlations with harmonic v(n) subtraction in Au plus Au collisions at v root sNN=200 GeV

Author: AGAKISHIEV, H, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BIRITZ, B, BLAND, LC, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FENG, A, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEROMITSOS, A, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GUERTIN, SM, GUPTA, A, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, P, JACOBS, WW, JENA, C, JIN, F, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, H, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KNOSPE, AG, KOETKE, DD, 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, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITROVSKI, MK, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, NAGLIS, M, NANDI, BK, NAYAK, TK, NETRAKANTI, PK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEI, H, PEITZMANN, T, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, RUAN, L, RUSNAK, J, SAHOO, NR, SAKAI, S, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, ZHONG, C, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, and ZOULKARNEEVA, Y
Subjects: Perspective, Quark-Gluon Plasma, Relativistic Nuclear Collisions, Collaboration, Anisotropic Flow
Abstract: STAR measurements of dihadron azimuthal correlations (Lambda phi) are reported in midcentral (20-60%) Au + Au collisions at v root sNN = 200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane, phi(s) = | phi(1) -psi(EP)|. The elliptic (v(2)), triangular (v(3)), and quadratic (v(4)) flow harmonic backgrounds are subtracted using the zero yield at mini + Au collisions. It is found that a finite near-side (| Delta phi | < pi/2) long-range pseudorapidity correlation (ridge) is present in the in-plane direction (phi(s) similar to 0). The away-side (| Delta phi | > pi/2) correlation shows a modification from d+ Au data, varying with fs. The modification may be a consequence of path-length-dependent jet quenching and may lead to a better understanding of high-density QCD.
Published: 2014

3. System-size dependence of transverse momentum correlations at root s(NN)=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider

Author: 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, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, FLORES, E, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GLISKE, S, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, 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, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KIKOLA, DP, KIRYLUK, J, KISEL, I, KISIEL, A, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, 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, LU, Y, LUO, X, LUSZCZAK, A, 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, 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, REDWINE, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, 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, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, 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, XUE, L, YANG, Y, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Plus Pb Collisions, Signatures, Quark-Gluon Plasma, Au-Au Collisions, Mean-P(T) Fluctuations, By-Event Fluctuations, Nuclear Collisions, Ratio, Dynamics, Model
Abstract: We present a study of the average transverse momentum (p(t)) fluctuations and p(t) correlations for charged particles produced in Cu + Cu collisions at midrapidity for root s(NN) = 62.4 and 200 GeV. These results are compared with those published for Au + Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the p(t) correlation results have been studied as functions of the collision centralities, the ranges in p(t), the pseudorapidity eta, and the azimuthal angle phi. The square root of the measured p(t) correlations when scaled by mean p(t) is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations.
Published: 2013

4. 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

5. Freeze-out dynamics via charged kaon femtoscopy in root sNN=200 GeV central Au plus Au collisions

Author: 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, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, 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, G, GROSNICK, D, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, 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, DE TOLEDO, AS, 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, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VERTESI, R, VIDEBAEK, 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, IK, 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, and ZYZAK, M
Subjects: Perspective, Quark-Gluon Plasma, Bose-Einstein Correlations, Collaboration
Abstract: We present measurements of three-dimensional correlation functions of like-sign, low-transverse-momentum kaon pairs from root sNN = 200 GeV Au + Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event-generator simulations with resonance contributions taken into account. Compared to the pion one, the kaon source function is generally narrower and does not have the long tail along the pair transverse momentum direction. The kaon Gaussian radii display a monotonic decrease with increasing transverse mass m(T) over the interval of 0.55
Published: 2013

6. Single spin asymmetry AN in polarized proton-proton elastic scattering at root s=200 GeV

Author: ADAMCZYK, L, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANSON, CD, ARKHIPKIN, D, ASCHENAUER, E, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GIBSON, A, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KIKOLA, DP, KIRYLUK, J, KISEL, I, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUO, X, LUSZCZAK, A, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MALL, OI, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, 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, OSTROWSKI, P, 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, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, 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, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YI, Y, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Impact-Picture, Energy, 1st Measurement, Polarization, Region, Beam, A(N), Elastic Scattering, Pp, Interference, Pomeron
Abstract: We report a high precision measurement of the transverse single spin asymmetry A(N) at the center of mass energy root 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
Published: 2013
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7. Measurement of J/psi Azimuthal Anisotropy in Au plus Au Collisions at root s(NN)=200 GeV

Author: 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, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, FLORES, E, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GLISKE, S, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, 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, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KIKOLA, DP, KIRYLUK, J, KISEL, I, KISIEL, A, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, 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, LU, Y, LUO, X, LUSZCZAK, A, 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, 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, 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, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, 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, XUE, L, YANG, Y, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Models, Flow, Heavy-Ion Collisions, Quark Coalescence
Abstract: The measurement of J/psi azimuthal anisotropy is presented as a function of transverse momentum for different centralities in Au + Au collisions at root s(NN) = 200 GeV. The measured J/psi elliptic flow is consistent with zero within errors for transverse momentum between 2 and 10 GeV/c. Our measurement suggests that J/psi particles with relatively large transverse momenta are not dominantly produced by coalescence from thermalized charm quarks, when comparing to model calculations.
Published: 2013

8. Elliptic flow of identified hadrons in Au + Au collisions at root s(NN)=7.7-62.4 GeV

Author: 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, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, FLORES, E, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GLISKE, S, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, 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, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KIKOLA, DP, KIRYLUK, J, KISEL, I, KISIEL, A, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, 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, LU, Y, LUO, X, LUSZCZAK, A, 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, 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, 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, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, 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, XUE, L, YANG, Y, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Energy, Models, Quark-Gluon Plasma, Heavy-Ion Collisions, Anisotropy, Relativistic Nuclear Collisions, Strange Particles, Signature, Collaboration
Abstract: Measurements of the elliptic flow, upsilon(2), of identified hadrons (pi(+/-), K-+/-, K-s(0), p, (p) over bar, phi, Lambda, (Lambda) over bar, Xi(-), (Xi) over bar (+), Omega(-), (Omega) over bar (+)) in Au + Au collisions at root s(NN) = 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV are presented. The measurements were done at midrapidity using the time-projection chamber and the time-of-flight detectors of the Solenoidal Tracker at RHIC experiment during the beam-energy scan program at Relativistic Heavy Ion Collider. A significant difference in the upsilon(2) values for particles and the corresponding antiparticles was observed at all transverse momenta for the first time. The difference increases with decreasing center-of-mass energy, root 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 antiparticles are no longer consistent with the universal number-of-constituent quark (NCQ) scaling of upsilon(2) that was observed at root s(NN) = 200 GeV. However, for the selected group of particles (p(+), K+, K-s(0), p, Lambda, Xi(-), Omega(-)) NCQ scaling at (m(T) - m(0))/n(q) > 0.4 GeV/c(2) is not violated within +/- 10%. The upsilon(2) values for f 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

9. J/psi production at high transverse momenta in p plus p and Au plus Au collisions at root s(NN)=200 GeV

Author: ADAMCZYK, L, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANSON, CD, ARKHIPKIN, D, ASCHENAUER, E, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHDYAY, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GIBSON, A, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KIKOLA, DP, KIRYLUK, J, KISEL, I, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUO, X, LUSZCZAK, A, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MALL, OI, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, 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, OSTROWSKI, P, 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, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, 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, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YI, Y, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: J/Psi Suppression, D+Au Collisions, Star, Star Experiment, Quark-Gluon Plasma, Quarkonium, Heavy-Ion Collisions, P+P, Distributions, Detector, Proton, Flavor, Color-Screening
Abstract: We report J/psi spectra for transverse momenta P-T > 5 GeV/c at mid-rapidity in p + p and Au + Au collisions at root s(NN) = 200 GeV. The inclusive J/psi spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/psi yields for p(T) > 5 GeV/c in 0-30% central Au + Au collisions relative to the p + p yield scaled by the number of binary nucleon-nucleon collisions in Au + Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-p(T) pi(+/-) and low-p(T) J/psi at RHIC and high-p(T) J/psi at the LHC. (C) 2013 Elsevier B.V. All rights reserved.
Published: 2013

10. Fluctuations of charge separation perpendicular to the event plane and local parity violation in root S-NN=200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider

Author: 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, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, 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, LX, 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, DE TOLEDO, AS, 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, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VERTESI, R, VIDEBAEK, 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, W, YANG, C, YANG, Y, YEPES, P, YI, L, YIP, K, YOO, IK, 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, and ZYZAK, M
Subjects: Hot Qcd, Collisions, Conservation
Abstract: Previous experimental results based on data (similar to 15 x 10(6) events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral 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 x 10(6) 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.
Published: 2013

11. Third harmonic flow of charged particles in Au plus Au collisions at root s(NN)=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANSON, CD, ARKHIPKIN, D, ASCHENAUER, E, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, C, 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, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, FLORES, E, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, 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, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KIKOLA, DP, KIRYLUK, J, KISEL, I, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, 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, LU, Y, LUO, X, LUSZCZAK, A, 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, MOROZOV, B, 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, OSTROWSKI, P, 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, POLJAK, N, PORTER, J, POSKANZER, AM, POWELL, CB, PRUNEAU, C, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, REDWINE, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, 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, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, 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, XUE, L, YANG, Y, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Time Projection Chamber, Model
Abstract: We report measurements of the third harmonic coefficient of the azimuthal anisotropy, upsilon(3), known as triangular flow. The analysis is for charged particles in Au + Au collisions at root s(NN) = 200 GeV, based on data from the STAR experiment at the BNL Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measurements of triangular flow are extracted from the wide Gaussian, from two-particle cumulants with a pseudorapidity gap, and also from event plane analysis methods with a large pseudorapidity gap between the particles and the event plane. These results are reported as a function of transverse momentum and centrality. A large dependence on the pseudorapidity gap is found. Results are compared with other experiments and model calculations.
Published: 2013

12. Directed Flow of Identified Particles in Au plus Au Collisions at root S-NN=200 GeV at RHIC

Author: ADAMCZYK, L, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, 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, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUO, X, LUSZCZAK, A, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MOROZOV, B, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NASIM, M, NAYAK, TK, NOGACH, LV, 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, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YI, Y, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Gev Au+Au Collisions, Star, Perspective, Quark-Gluon Plasma, Heavy-Ion Collisions, Collective Flow, Transverse Flow, Collaboration, Anisotropic Flow
Abstract: STAR's measurements of directed flow (v(1)) around midrapidity for pi(+/-), K-+/-, K-S(0), p, and (p) over bar in Au + Au collisions at root s(NN) = 200 GeV are presented. A negative v(1) (y) slope is observed for most of produced particles (pi(+/-), K-+/-, K-S(0), p, and (p) over bar). In 5%-30% central collisions, a sizable difference is present between the v(1)(y) slope of protons and antiprotons, with the former being consistent with zero within errors. The v(1) excitation function is presented. Comparisons to model calculations (RQMD, UrQMD, AMPT, QGSM with parton recombination, and a hydrodynamics model with a tilted source) are made. For those models which have calculations of v(1) for both pions and protons, none of them can describe v(1()y) forpions and protons simultaneously. The hydrodynamics model with a tilted source as currently implemented cannot explain the centrality dependence of the difference between the v(1)(y) slopes of protons and antiprotons.
Published: 2012
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13. Strangeness Enhancement in Cu-Cu and Au-Au Collisions at root s(NN)=200 GeV

Author: AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, P, JACOBS, WW, JENA, C, JIN, F, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KNOSPE, AG, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NAYAK, TK, NELSON, JM, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEI, H, PEITZMANN, T, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHAUB, J, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Energy, Particle, Dependence
Abstract: We report new STAR measurements of midrapidity yields for the Lambda, (Lambda) over bar, K-S(0), Xi(-), (Xi) over bar (+), Omega(-), (Omega) over bar (+) particles in Cu + Cu collisions at root s(NN) = 200 GeV, and midrapidity yields for the Lambda, (Lambda) over bar, K-S(0) particles in Au + Au at root s(NN) = 200 GeV. 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 parametrization based on the fraction of participants that undergo multiple collisions.
Published: 2012
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14. Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized p+p collisions at root s=200 GeV

Author: ADAMCZYK, L, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, ASCHENAUER, E, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, 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, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOWALIK, K, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUO, X, LUSZCZAK, A, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MALL, OI, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MILLANE, J, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NASIM, M, NAYAK, TK, NOGACH, LV, NOVAK, J, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, OSTROWSKI, P, 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, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, B, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STASZAK, D, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YI, Y, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Deep-Inelastic-Scattering, Structure-Function G(1)(N), Qcd Analysis, Star, Photoproduction, Proton, P Collisions, Q(2)-Dependence, Dependent Structure-Function, Nucleon
Abstract: We report STAR measurements of the longitudinal double-spin asymmetry A(LL), the transverse singlespin 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 root s = 200 GeV. The data represent integrated luminosities of 7.6 pb(-1) with longitudinal polarization and 1.8 pb(-1) 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.
Published: 2012

15. rho(0) photoproduction in AuAu collisions at root s(NN)=62.4 GeV measured with the STAR detector

Author: AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, P, JACOBS, WW, JENA, C, JIN, F, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KNOSPE, AG, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NAYAK, TK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEI, H, PEITZMANN, T, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHAUB, J, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Hera, Physics, Time Projection Chamber, Heavy-Ion Collisions, Saturation
Abstract: Vector mesons may be photoproduced in relativistic heavy-ion collisions when a virtual photon emitted by one nucleus scatters from the other nucleus, emerging as a vector meson. The STAR Collaboration has previously presented measurements of coherent rho(0) photoproduction at center of mass energies of 130 GeV and 200 GeV in AuAu collisions. Here, we present a measurement of the cross section at 62.4 GeV; we find that the cross section for coherent rho(0) photoproduction with nuclear breakup is 10.5 +/- 1.5 +/- 1.6mb at 62.4 GeV. The cross-section ratio between 200 GeV and 62.4 GeV is 4.4 +/- 0.6, less than is predicted by most theoretical models. It is, however, proportionally much larger than the previously observed 15% +/- 55% increase between 130 GeV and 200 GeV.
Published: 2012
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16. Energy and system-size dependence of two- and four-particle nu(2) measurements in heavy-ion collisions at root S-NN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow

Author: AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JIN, F, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KNOSPE, AG, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NAYAK, TK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, 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, POSKANZER, AM, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHAUB, J, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DE SOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Elliptic Flow, Relativistic Nuclear Collisions, Signature, Collaboration, Eccentricity Fluctuations
Abstract: We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants nu(2) (nu(2){2} and nu(2){4}) for Au + Au and Cu + Cu collisions at center-of-mass energies root S-NN = 62.4 and 200 GeV. The difference between nu(2){2}(2) and nu(2){4}(2) is related to nu(2) fluctuations (sigma(nu 2)) and nonflow (delta(2)). We present an upper limit to sigma(nu 2)/nu 2. Following the assumption that eccentricity fluctuations sigma(epsilon) dominate nu(2) fluctuations nu(2)/sigma nu(2) approximate to epsilon/sigma epsilon we deduce the nonflow implied for several models of eccentricity fluctuations that would be required for consistency with nu(2){2} and nu(2){4}. We also present results on the ratio of nu(2) to eccentricity.
Published: 2012
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17. Di-electron spectrum at mid-rapidity in p+p collisions at root s=200 GeV

Author: ADAMCZYK, L, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, ASCHENAUER, E, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, 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, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GIBSON, A, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUO, X, LUSZCZAK, A, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MALL, OI, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NASIM, M, NAYAK, TK, NOGACH, LV, NOVAK, J, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, OSTROWSKI, P, 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, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, B, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, JR, JAV, VARMA, R, VASCONCELOS, GMS, VIDEBK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, JR, CW, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YI, Y, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: D+Au Collisions, Star Experiment, Restoration, Perspective, Quark-Gluon Plasma, Particle Identification, Resistive Plate Chambers, Decays, Collaboration, Transverse-Momentum
Abstract: We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e(+) e(-) decays, from root s = 200 GeV p + p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted omega -> e(+) e(-) invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of phi and J/psi are extracted through their di-electron decay channels and are consistent with the previous measurements of phi -> K+ K- and J/psi -> e(+) e(-). Our results suggest a new upper limit of the branching ratio of the eta -> e(+) e(-) of 1.7 x 10(-5) at the 90% confidence level.
Published: 2012

18. Transverse single-spin asymmetry and cross section for pi(0) and eta mesons at large Feynman x in p(up arrow) + p collisions at root s=200 GeV

Author: ADAMCZYK, L, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, ASCHENAUER, E, AVERICHEV, GS, BALEWSKI, J, BANNERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, 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, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUO, X, LUSZCZAK, A, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MALL, OI, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MOROZOV, B, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NASIM, M, NAYAK, TK, NOGACH, LV, NOVAK, J, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, OSTROWSKI, P, 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, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, B, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YI, Y, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Fragmentation, Polarization, Gev/C, Beam
Abstract: Measurements of the differential cross section and the transverse single-spin asymmetry, A(N), vs x(F) for pi(0) and eta mesons are reported for 0.4 < x(F) < 0.75 at an average pseudorapidity of 3.68. A data sample of approximately 6.3 pb(-1) was analyzed, which was recorded during p(up arrow) + p collisions at root s = 200 GeV by the STAR experiment at RHIC. The average transverse beam polarization was 56%. The cross section for pi(0), including the previously unmeasured region of x(F) > 0.55, is consistent with a perturbative QCD prediction, and the eta/pi(0) cross-section ratio agrees with existing midrapidity measurements. For 0.55 < x(F) < 0.75, the average A(N) for eta is 0.210 +/- 0.056, and that for pi(0) is 0.081 +/- 0.016. The probability that these two asymmetries are equal is similar to 3%.
Published: 2012
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19. Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV

Author: ADAMCZYK, L, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, ASCHENAUER, E, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, 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, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DE SOUZA, RD, DHAMIJA, S, DIDENKO, L, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GLISKE, S, GORBUNOV, YN, GREBENYUK, OG, GROSNICK, D, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUO, X, LUSZCZAK, A, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MALL, OI, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MOROZOV, B, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NASIM, M, NAYAK, TK, NOGACH, LV, NOVAK, J, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, OSTROWSKI, P, 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, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, B, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, 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, STEADMAN, SG, 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, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, JR, JAV, VARMA, R, VASCONCELOS, GMS, VIDEBK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, JR, CW, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YI, Y, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and COLLABORATION, S
Subjects: Charm, Star, Electromagnetic Calorimeter, Hadronization
Abstract: We report measurements of charmed-hadron (D-0, D*) production cross sections at midrapidity 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 -> K- pi(+), D*(+) -> D-0 pi(+) -> K-pi(+)pi(+) and their charge conjugates, covering the p(T) range of 0.6-2.0 and 2.0-6.0 GeV/c for D-0 and D*(+), respectively. From this analysis, the charm-pair production cross section at midrapidity is d sigma/dy vertical bar(c (c) over bar)(y-0) = 170+/-45(stat)(-59)(+38()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.
Published: 2012

20. Measurement of the Bottom Quark Contribution to Nonphotonic Electron Production in p plus p Collisions at root s=200 GeV

Author: AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, D, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, SAKREJDA, I, JONES, PG, JOSEPH, J, JUDD, EG, UNDERWOOD, DG, ZHOU, W, BIELCIKOVA, J, KABANA, S, BELLWIED, R, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, SAKUMA, T, KEANE, D, KECHECHYAN, A, ZHU, X, MA, GL, KETTLER, D, KIKOLA, DP, MATULENKO, YA, KIRYLUK, J, KISIEL, A, BETANCOURT, MJ, KIZKA, V, KLEIN, SR, SALUR, S, ZHU, YH, KNOSPE, AG, RAY, RL, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, MCDONALD, D, KORALT, I, KOROLEVA, L, KORSCH, W, ZOULKARNEEV, R, BETTS, RR, BRIDGEMAN, A, CAINES, H, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, MCSHANE, TS, ZOULKARNEEVA, Y, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, VAN BUREN, G, SANDWEISS, J, LAPOINTE, S, BHASIN, A, LAURET, J, LEBEDEV, A, LEDNICKY, R, MANGOTRA, LK, LEE, CH, LEE, JH, MESCHANIN, A, LEIGHT, W, VAN LEEUWEN, M, LEVINE, MJ, SANGALINE, E, LI, C, LI, L, LI, N, CHAJECKI, Z, BHATI, AK, LI, W, LI, X, LI, Y, VAN NIEUWENHUIZEN, G, MILNER, R, LI, ZM, LJUBICIC, T, LIN, G, CHALOUPKA, P, LIN, XY, LINDENBAUM, SJ, LISA, MA, LIU, F, BICHSEL, H, LIU, H, VANFOSSEN, JA, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, CHATTOPADHYAY, S, HEINZ, M, MITROVSKI, MK, GUPTA, A, MOHANTY, B, BIRITZ, B, MONDAL, MM, MOROZOV, B, VARMA, R, MOROZOV, DA, MUNHOZ, MG, ROSE, A, NANDI, BK, NATTRASS, C, SCHAMBACH, J, NAYAK, TK, NELSON, JM, GURYN, W, NETRAKANTI, PK, NG, MJ, VASCONCELOS, GMS, BLAND, LC, TRAINOR, TA, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, SCHARENBERG, RP, OKOROKOV, V, OLDAG, EW, OLSON, D, HAAG, B, HOFMAN, DJ, IGO, G, PACHR, M, PAGE, BS, PAL, SK, BONNER, BE, PANDIT, Y, PANEBRATSEV, Y, SCHMITZ, N, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, CHEN, HF, VASILIEV, AN, PERKINS, C, HAMED, A, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, BOUCHET, J, SCHUSTER, TR, PLOSKON, MA, CHEN, JH, PLUTA, J, VIDEBAEK, F, PLYKU, D, POLJAK, N, POSKANZER, AM, HAN, LX, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, CHEN, JY, SEELE, J, PRUTHI, NK, REDWINE, R, BRAIDOT, E, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, HARRIS, JW, RANIWALA, S, CHENG, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, BIELCIK, J, BRUNA, E, LLOPE, WJ, SHAHALIEV, E, BAUMGART, S, SHAO, M, SHARMA, M, CHERNEY, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, VIYOGI, YP, SKOBY, MJ, SMIRNOV, N, LONGACRE, RS, SORENSEN, P, BUELTMANN, S, CHIKANIAN, A, HEPPELMANN, S, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, VOKAL, S, STASZAK, D, STEVENS, JR, STOCK, R, LOVE, WA, MANWEILER, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, HIRSCH, A, BUNZAROV, I, SUAREZ, MC, SANCHEZ, MCD, SUBBA, NL, SUMBERA, M, SUN, XM, CHOI, KE, SUN, Y, LU, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, HJORT, E, VOLOSHIN, SA, DE TOLEDO, AS, BURTON, TP, CHRISTIE, W, TAKAHASHI, J, TANG, AH, TANG, Z, LUKASHOV, EV, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, WADA, M, TIAN, J, TRAM, VN, HOFFMAN, AM, TIMMINS, AR, TIMOSHENKO, S, CAI, XZ, TLUSTY, D, LUO, X, TOKAREV, M, WALKER, M, WANG, F, WANG, G, HAYS-WEHLE, JP, HUANG, B, REED, R, WANG, H, GROSNICK, D, WANG, JS, WANG, Q, WANG, XL, WANG, Y, CATU, O, WEBB, G, CHUNG, P, WEBB, JC, WESTFALL, GD, RITTER, HG, WHITTEN, C, HUANG, HZ, MA, YG, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, CLARKE, RF, XIE, W, XU, H, CEBRA, D, ROBERTS, JB, XU, N, XU, QH, XU, W, MAHAPATRA, DP, HUMANIC, TJ, XU, Y, JACOBS, P, XU, Z, XUE, L, YANG, Y, YEPES, P, BRANDIN, AV, YIP, K, YOO, IK, CENDEJAS, R, YUE, Q, MAJKA, R, CODRINGTON, MJM, ZAWISZA, M, HUO, L, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ROGACHEVSKIY, OV, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, CORLISS, R, ZHANG, ZP, MALL, OI, CERVANTES, MC, ZHAO, J, BEAVIS, DR, ZHONG, C, ROMERO, JL, ZHOU, J, CRAMER, JG, CRAWFORD, HJ, DAS, D, MARGETIS, S, TRENTALANGE, S, DASH, S, LIU, J, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, JACOBS, WW, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, TRIBBLE, RE, DJAWOTHO, P, MARKERT, C, ROY, C, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, JENA, C, TSAI, OD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, RUAN, L, MASUI, H, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, HOFFMANN, GW, EVDOKIMOV, O, FACHINI, P, JIN, F, FATEMI, R, SAHOO, R, FEDORISIN, J, MATIS, HS, FERSCH, RG, FILIP, P, FINCH, E, ULERY, J, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, SAKAI, S, JONES, CL, GARCIA-SOLIS, EJ, GUERTIN, SM, GEROMITSOS, A, ULLRICH, T, and GEURTS, F
Subjects: High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Tomography
Abstract: The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at root s = 200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of p(T) >= 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).
Published: 2010

21. Azimuthal di-hadron correlations in d plus Au and Au plus Au collisions at root s(NN)=200 GeV measured at the STAR detector

Author: AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, ZOULKARNEEVA, Y, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, MARGETIS, S, CHEN, JY, CHENG, J, CHERNEY, M, SAHOO, R, TRIBBLE, RE, HUO, L, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CLARKE, RF, CODRINGTON, MJM, MARKERT, C, CORLISS, R, CRAMER, JG, TSAI, OD, HAYS-WEHLE, JP, CRAWFORD, HJ, DAS, D, IGO, G, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, MASUI, H, ULERY, J, DEREVSCHIKOV, AA, LJUBICIC, T, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, JACOBS, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, ULLRICH, T, DUNLOP, JC, MATIS, HS, SAKAI, S, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, JACOBS, WW, UNDERWOOD, DG, ERAZMUS, B, ESTIENNE, M, EUN, L, SAKREJDA, I, MATULENKO, YA, EVDOKIMOV, O, FACHINI, P, FATEMI, R, FEDORISIN, J, FERSCH, RG, HOFFMANN, GW, FILIP, P, FINCH, E, JENA, C, FINE, V, SAKUMA, T, FISYAK, Y, MCDONALD, D, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, VAN BUREN, G, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, SALUR, S, JIN, F, GORBUNOV, YN, GUPTA, A, GORDON, A, VAN LEEUWEN, M, GREBENYUK, O, GROSNICK, D, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, SANDWEISS, J, BETANCOURT, MJ, KABANA, S, KAJIMOTO, K, VAN NIEUWENHUIZEN, G, BIRITZ, B, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, KECHECHYAN, A, KETTLER, D, SANGALINE, E, KIKOLA, DP, KIRYLUK, J, MAHAPATRA, DP, BETTS, RR, KISIEL, A, MCSHANE, TS, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, SCHAMBACH, J, KONZER, J, RITTER, HG, KORALT, I, KOROLEVA, L, KORSCH, W, BHASIN, A, MESCHANIN, A, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, BRUNA, E, SANCHEZ, MCD, KRUS, M, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, MILNER, R, BHATI, AK, LAURET, J, LEBEDEV, A, VANFOSSEN, JA, SCHARENBERG, RP, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, MINAEV, NG, LI, N, VARMA, R, BICHSEL, H, SCHMITZ, N, LI, W, LI, X, LI, Y, LI, ZM, LIN, G, LINDENBAUM, SJ, LISA, MA, VASCONCELOS, GMS, MIODUSZEWSKI, S, LIU, F, LLOPE, WJ, LIU, H, BIELCIK, J, LIU, J, MISCHKE, A, MITROVSKI, MK, MOHANTY, B, MONDAL, MM, VASILIEV, AN, GUPTA, N, MOROZOV, B, BLAND, LC, HEINZ, M, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, VIDEBAEK, F, NETRAKANTI, PK, NG, MJ, GURYN, W, NOGACH, LV, SCHUSTER, TR, NURUSHEV, SB, BONNER, BE, ODYNIEC, G, OGAWA, A, OKOROKOV, V, VIYOGI, YP, OLDAG, EW, OLSON, D, PACHR, M, PAGE, BS, HAAG, B, SEELE, J, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, BOUCHET, J, HOFMAN, DJ, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, SEGER, J, HAMED, A, PILE, P, PLANINIC, M, VOKAL, S, PLOSKON, MA, PLUTA, J, BRAIDOT, E, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, SELYUZHENKOV, I, POWELL, CB, HAN, LX, VOLOSHIN, SA, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, BRANDIN, AV, RANIWALA, R, RANIWALA, S, SEYBOTH, P, RAY, RL, ROBERTS, JB, REDWINE, R, HARRIS, JW, REED, R, SHAHALIEV, E, SHAO, M, SHARMA, M, BUELTMANN, S, LONGACRE, RS, SHI, SS, BEAVIS, DR, BIELCIKOVA, J, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SORENSEN, P, SOWINSKI, J, SPINKA, HM, LOVE, WA, SRIVASTAVA, B, WADA, M, BUNZAROV, I, HEPPELMANN, S, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, LU, Y, WALKER, M, SUAREZ, MC, SUBBA, NL, SUMBERA, M, HIRSCH, A, BURTON, TP, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, CATU, O, LUO, X, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, HJORT, E, TANG, Z, CAI, XZ, TARINI, LH, TARNOWSKY, T, WANG, F, THEIN, D, MA, GL, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TLUSTY, D, HOFFMAN, AM, TOKAREV, M, TRAINOR, TA, WANG, G, CAINES, H, TRAM, VN, MA, YG, TRENTALANGE, S, WANG, H, WANG, JS, WANG, Q, HORNER, MJ, ROGACHEVSKIY, OV, WANG, XL, GUERTIN, SM, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, CEBRA, D, WHITTEN, C, WIEMAN, H, WISSINK, SW, ROMERO, JL, WITT, R, HUANG, B, MAJKA, R, WU, YF, XIE, W, XU, N, XU, QH, XU, W, XU, Y, CENDEJAS, R, ROSE, A, XU, Z, XUE, L, YANG, Y, MALL, OI, HUANG, HZ, YEPES, P, YIP, K, YOO, IK, YUE, Q, ZAWISZA, M, BRIDGEMAN, A, ZBROSZCZYK, H, ZHAN, W, CERVANTES, MC, ZHANG, JB, MANGOTRA, LK, ZHANG, S, HUMANIC, TJ, ZHANG, WM, ZHANG, XP, ZHANG, Y, ROY, C, ZHANG, ZP, ZHAO, J, ZHONG, C, ZHOU, J, ZHOU, W, MANWEILER, R, CHAJECKI, Z, ZHU, X, BELLWIED, R, ZHU, YH, RUAN, L, and ZOULKARNEEV, R
Subjects: Plasma, Radiation, Au+Au Collisions, Nuclear Experiment
Abstract: Yields, correlation shapes, and mean transverse momenta p(T) of charged particles associated with intermediate-to high-p(T) trigger particles (2.5 < p(T) < 10 GeV/c) in d + Au and Au + Au collisions at root s(NN) = 200 GeV are presented. For associated particles at higher p(T) greater than or similar to 2.5 GeV/c, 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 GeV/c, a large enhancement of the near- (Delta phi similar to 0) and away-side (Delta phi similar to pi) 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 Delta phi similar to pi in central Au + Au collisions.
Published: 2010

22. gamma cross section in p plus p collisions at root s=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, BEAVIS, DR, GORDON, A, GREBENYUK, O, JACOBS, WW, JAKL, P, JENA, C, SAKUMA, T, JIN, F, BETTS, RR, JONES, CL, VAN LEEUWEN, M, ZOULKARNEEV, R, BLAND, LC, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, SALUR, S, KAPITAN, J, KAUDER, K, ZOULKARNEEVA, Y, MA, GL, KEANE, D, BHASIN, A, MATULENKO, YA, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, SANDWEISS, J, CHATTOPADHYAY, S, KNOSPE, AG, REED, R, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, MCDONALD, D, BHATI, AK, KOPYTINE, M, KORALT, I, CHEN, HF, KORSCH, W, BUELTMANN, S, CATU, O, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, MCSHANE, TS, CHEN, JH, KURNADI, P, BICHSEL, H, LAMONT, MAC, VAN NIEUWENHUIZEN, G, SANGALINE, E, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, MANGOTRA, LK, LEE, CH, LEE, JH, MESCHANIN, A, LEIGHT, W, VANFOSSEN, JA, LEVINE, MJ, SCHAMBACH, J, BIELCIK, J, LI, C, LI, L, CHEN, JY, LI, N, LI, W, LI, X, LI, Y, VARMA, R, MILNER, R, LI, Z, LIU, H, LIN, G, CHENG, J, LINDENBAUM, SJ, BIELCIKOVA, J, LISA, MA, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, VASCONCELOS, GMS, MITROVSKI, MK, GUERTIN, SM, MOHANTY, B, CHERNEY, M, HAN, LX, BONNER, BE, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, VASILIEV, AN, NAYAK, TK, NELSON, JM, ROY, C, NETRAKANTI, PK, GUPTA, A, SCHARENBERG, RP, NG, MJ, NOGACH, LV, BOUCHET, J, NURUSHEV, SB, ODYNIEC, G, VIDEBAEK, F, OGAWA, A, TRENTALANGE, S, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, SCHMITZ, N, GUPTA, N, PAGE, BS, PAL, SK, PANDIT, Y, HJORT, E, HUANG, HZ, BRAIDOT, E, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, SCHUSTER, TR, PERYT, W, GURYN, W, PHATAK, SC, CHIKANIAN, A, VIYOGI, YP, PILE, P, PLANINIC, M, PLOSKON, MA, BRANDIN, AV, PLUTA, J, PLYKU, D, POLJAK, N, SEELE, J, POSKANZER, AM, CHOI, KE, POTUKUCHI, BVKS, VOKAL, S, HAAG, B, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, BRIDGEMAN, A, PUTSCHKE, J, CHRISTIE, W, SEGER, J, RANIWALA, R, REHBERG, JM, RANIWALA, S, RAY, RL, HALLMAN, TJ, REDWINE, R, SELYUZHENKOV, I, SEYBOTH, P, SHAHALIEV, E, CHUNG, P, BUNZAROV, I, LIU, J, SHAO, M, BIRITZ, B, BELLWIED, R, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, CLARKE, RF, SKOBY, MJ, SMIRNOV, N, SORENSEN, P, LJUBICIC, T, VOLOSHIN, SA, SOWINSKI, J, BURTON, TP, HARRIS, JW, SPINKA, HM, SRIVASTAVA, B, CODRINGTON, MJM, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, WADA, M, LLOPE, WJ, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, MANWEILER, R, HAYS-WEHLE, JP, CAI, XZ, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, CEBRA, D, SUN, Z, LONGACRE, RS, SURROW, B, CORLISS, R, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, HEINZ, M, TANG, AH, CAINES, H, TANG, Z, WALKER, M, TARINI, LH, TARNOWSKY, T, COSENTINO, MR, LOVE, WA, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, HEPPELMANN, S, TLUSTY, D, WANG, F, TOKAREV, M, TRIBBLE, RE, SANCHEZ, MCDB, TRAINOR, TA, LU, Y, TRAM, VN, WANG, G, WANG, H, WANG, JS, HOFFMAN, AM, RITTER, HG, WANG, Q, HAMED, A, GROSNICK, D, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, CENDEJAS, R, WESTFALL, GD, WHITTEN, C, WIEMAN, H, ROBERTS, JB, CRAMER, JG, WINGFIELD, E, HOFFMANN, GW, MA, YG, WISSINK, SW, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, CERVANTES, MC, CRAWFORD, HJ, ROGACHEVSKIY, OV, XU, W, XU, Y, XU, Z, MAHAPATRA, DP, HOFMAN, DJ, XUE, L, YANG, Y, YEPES, P, YIP, K, HUMANIC, TJ, YOO, IK, BRUNA, E, YUE, Q, ZAWISZA, M, CHAJECKI, Z, ZBROSZCZYK, H, MAJKA, R, ZHAN, W, HOLLIS, RS, ZHANG, S, DAS, D, ZHANG, WM, ZHANG, XP, ROMERO, JL, ZHANG, Y, ZHANG, ZP, ZHAO, J, ZHONG, C, ZHOU, J, MALL, OI, CHALOUPKA, P, DASH, S, ZHOU, W, BETANCOURT, MJ, ZHU, X, ROSE, A, ZHU, YH, LEYVA, AD, DE SILVA, LC, DEBBE, RR, MARGETIS, S, TSAI, OD, DEDOVICH, TG, LIU, F, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, HUO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, ULERY, J, DRACHENBERG, JL, MARKERT, C, RUAN, L, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, IGO, G, ULLRICH, T, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, SAHOO, R, MASUI, H, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FACHINI, P, FATEMI, R, HIRSCH, A, FEDORISIN, J, FERSCH, RG, IORDANOVA, A, FILIP, P, SAKAI, S, FINCH, E, MATIS, HS, FINE, V, FISYAK, Y, GAGLIARDI, CA, UNDERWOOD, DG, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, SAKREJDA, I, JACOBS, P, GHAZIKHANIAN, V, GRUBE, B, GHOSH, P, VAN BUREN, G, and GORBUNOV, YN
Subjects: Suppression, Nucleus-Nucleus Collisions, Resonances, Quark-Gluon Plasma, High Energy Physics::Experiment, J-Psi, Nuclear Experiment, Dimuon
Abstract: We report on a measurement of the gamma(1S + 2S + 3S) -> e(+)e(-) cross section at midrapidity in p + p collisions at root s = 200 GeV. We find the cross section to be 114 +/- 38(stat + fit)(-24)(+23)(syst) pb. Perturbative QCD calculations at next-to-leading order in the color evaporation model are in agreement with our measurement, while calculations in the color singlet model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of gamma data to RHIC energies. The dielectron continuum in the invariant-mass range near the gamma is also studied to obtain a combined yield of e(+)e(-) pairs from the sum of the Drell-Yan process and b-(b) over bar production.
Published: 2010

23. Inclusive pi(0), eta, and direct photon production at high transverse momentum in p plus p and d plus Au collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUMGART, S, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, BIELCIK, J, GROSNICK, D, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, GRUBE, B, BIELCIKOVA, J, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, GUERTIN, SM, MITROVSKI, MK, BIRITZ, B, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, GUPTA, A, NETRAKANTI, PK, NG, MJ, BLAND, LC, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, GUPTA, N, PACHR, M, PAGE, BS, PAL, SK, BONNER, BE, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, GURYN, W, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, BOUCHET, J, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, HAAG, B, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, BRAIDOT, E, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, HALLMAN, TJ, RAY, RL, REDWINE, R, REED, R, REHBERG, JM, RITTER, HG, ROBERTS, JB, BRANDIN, AV, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, HAMED, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, SAKUMA, T, BRIDGEMAN, A, SALUR, S, SANDWEISS, J, HAN, LX, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, BRUNA, E, SEYBOTH, P, BEAVIS, DR, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, BUELTMANN, S, HARRIS, JW, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, HAYS-WEHLE, JP, BUNZAROV, I, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, HEINZ, M, DE TOLEDO, AS, BURTON, TP, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, HEPPELMANN, S, TIMMINS, AR, TIMOSHENKO, S, CAI, XZ, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, HIRSCH, A, ULERY, J, ULLRICH, T, UNDERWOOD, DG, CAINES, H, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, HJORT, E, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, SANCHEZ, MCD, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, HOFFMAN, AM, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, CATU, O, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, HOFFMANN, GW, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, Y, XIE, W, CEBRA, D, XU, N, XU, QH, XU, W, HOFMAN, DJ, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, CENDEJAS, R, YUE, Q, ZAWISZA, M, HOLLIS, RS, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, CERVANTES, MC, ZHONG, C, BELLWIED, R, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, HUANG, HZ, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CLARKE, RF, CODRINGTON, MJM, HUMANIC, TJ, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, HUO, L, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, IGO, G, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, IORDANOVA, A, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, JACOBS, P, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, JACOBS, WW, JAKL, P, JENA, C, JIN, F, BENEDOSSO, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, BETANCOURT, MJ, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, BETTS, RR, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, BHASIN, A, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, BHATI, AK, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, Z, LIN, G, BICHSEL, H, and LINDENBAUM, SJ
Subjects: D+Au Collisions, Barrel Electromagnetic Calorimeter, Star, Fragmentation, Physics, Time Projection Chamber, Heavy-Ion Collisions, Distributions, High Energy Physics::Experiment, Leading Order, Hadron-Production, Nuclear 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 root 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.
Published: 2010

24. Charged and strange hadron elliptic flow in Cu plus Cu collisions at root s(NN)=62.4 and 200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, GARCIA-SOLIS, EJ, GRUBE, B, GEROMITSOS, A, ULERY, J, GEURTS, F, BEAVIS, DR, BETTS, RR, KETTLER, D, KIKOLA, DP, WANG, F, ZHAO, J, ROMERO, JL, SAKUMA, T, ZHU, YH, KIRYLUK, J, RAY, RL, KISIEL, A, KLEIN, SR, SHAHALIEV, E, KNOSPE, AG, KOCOLOSKI, A, BELLWIED, R, MIODUSZEWSKI, S, MATULENKO, YA, KOETKE, DD, MUNHOZ, MG, KOLLEGGER, T, KONZER, J, ZOULKARNEEV, R, BHASIN, A, BRUNA, E, SHAO, M, ZHONG, C, SANCHEZ, MCD, PUJAHARI, PR, KOPYTINE, M, KORALT, I, KOROLEVA, L, KORSCH, W, NANDI, BK, KOTCHENDA, L, KOUCHPIL, V, MCDONALD, D, ROGACHEVSKIY, OV, ZOULKARNEEVA, Y, CHIKANIAN, A, HAN, LX, KRAVTSOV, P, KRUEGER, K, KRUS, M, UNDERWOOD, DG, SALUR, S, KUMAR, L, SANGALINE, E, ZHOU, J, BHATI, AK, KURNADI, P, LAMONT, MAC, HOFFMANN, GW, SHARMA, M, LANDGRAF, JM, MALL, OI, LAPOINTE, S, LAURET, J, MCSHANE, TS, BLAND, LC, LEBEDEV, A, VAN BUREN, G, NATTRASS, C, LEDNICKY, R, REED, R, SANDWEISS, J, SHI, SS, LEE, CH, LEE, JH, LEIGHT, W, CRAWFORD, HJ, CHALOUPKA, P, BICHSEL, H, LEVINE, MJ, LI, C, LI, L, WANG, G, NAYAK, TK, LI, N, LI, Z, VAN LEEUWEN, M, DAS, D, MESCHANIN, A, LI, W, LIU, F, LI, X, CHATTOPADHYAY, S, GROSNICK, D, GUPTA, A, NELSON, JM, NETRAKANTI, PK, DASH, S, ULLRICH, T, VARMA, R, GORBUNOV, YN, BONNER, BE, TLUSTY, D, NG, MJ, NOGACH, LV, WANG, H, NURUSHEV, SB, ODYNIEC, G, SELYUZHENKOV, I, SCHAMBACH, J, OGAWA, A, SHI, XH, OKADA, H, OKOROKOV, V, GORDON, A, GUPTA, N, HOFFMAN, AM, WANG, JS, HUMANIC, TJ, TIAN, J, OLSON, D, PACHR, M, PAGE, BS, BOUCHET, J, SICHTERMANN, EP, PAL, SK, PANDIT, Y, SCHARENBERG, RP, GREBENYUK, O, JUDD, EG, LU, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, CHEN, JH, VASCONCELOS, GMS, PEREVOZTCHIKOV, V, VIDEBAEK, F, GURYN, W, PERKINS, C, PERYT, W, MANWEILER, R, WANG, Q, PHATAK, SC, SAKAI, S, PILE, P, BRAIDOT, E, SCHMITZ, N, PLANINIC, M, CHEN, JY, SIMON, F, PLOSKON, MA, TRAM, VN, VASILIEV, AN, WANG, XL, PLUTA, J, PLYKU, D, POLJAK, N, JAKL, P, HAAG, B, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, LEYVA, AD, SINGARAJU, RN, PRINDLE, D, PUTSCHKE, J, CHENG, J, SCHUSTER, TR, PRUNEAU, C, REDWINE, R, BRANDIN, AV, JENA, C, PRUTHI, NK, LISA, MA, LIU, J, SKOBY, MJ, BUNZAROV, I, CHEN, HF, CHOI, KE, LIN, G, HAYS-WEHLE, JP, ZHOU, W, SMIRNOV, N, SORENSEN, P, DE SILVA, LC, SOWINSKI, J, SPINKA, HM, VIYOGI, YP, SRIVASTAVA, B, CEBRA, D, STANISLAUS, TDS, STASZAK, D, BIELCIK, J, LJUBICIC, T, MANGOTRA, LK, DEBBE, RR, BIRITZ, B, STEVENS, JR, STOCK, R, STRIKHANOV, M, HEINZ, M, WANG, Y, BURTON, TP, STRINGFELLOW, B, CATU, O, LINDENBAUM, SJ, MOHANTY, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, JONES, CL, CHRISTIE, W, SUMBERA, M, CLARKE, RF, LLOPE, WJ, SUN, XM, SUN, Y, DEDOVICH, TG, SUN, Z, VAN NIEUWENHUIZEN, G, SURROW, B, HEPPELMANN, S, VOKAL, S, SVIRIDA, DN, BETANCOURT, MJ, WEBB, G, CAI, XZ, CHUNG, P, DEPHILLIPS, M, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, MILNER, R, LONGACRE, RS, TANG, AH, TANG, Z, TARINI, LH, WEBB, JC, TARNOWSKY, T, CAINES, H, JONES, PG, VOLOSHIN, SA, THEIN, D, TOKAREV, M, HIRSCH, A, MINAEV, NG, THOMAS, JH, REHBERG, JM, WESTFALL, GD, HOFMAN, DJ, JIN, F, KABANA, S, RANIWALA, R, MA, GL, GHAZIKHANIAN, V, WHITTEN, C, WIEMAN, H, WINGFIELD, E, WISSINK, SW, CODRINGTON, MJM, WITT, R, IGO, G, WU, Y, CENDEJAS, R, HAMED, A, RITTER, HG, SAKREJDA, I, HARRIS, JW, XIE, W, XU, N, XU, QH, MA, YG, DEREVSCHIKOV, AA, HOLLIS, RS, XU, W, HUO, L, RANIWALA, S, XU, Y, XU, Z, XUE, L, MISCHKE, A, KAJIMOTO, K, YANG, Y, KAPITAN, J, BRIDGEMAN, A, YEPES, P, YIP, K, CERVANTES, MC, CHERNEY, M, YOO, IK, MAHAPATRA, DP, CORLISS, R, YUE, Q, GUERTIN, SM, DE SOUZA, RD, HUANG, HZ, KANG, K, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, SEELE, J, ROBERTS, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, DIDENKO, L, ZHANG, Y, MITROVSKI, MK, CRAMER, JG, ZHANG, ZP, ZHU, X, MAJKA, R, SEGER, J, CHAJECKI, Z, TRENTALANGE, S, DJAWOTHO, P, MARGETIS, S, MONDAL, MM, TIMMINS, AR, ROSE, A, LI, Y, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, KAUDER, K, DUNLOP, JC, MAZUMDAR, MRD, IORDANOVA, A, LOVE, WA, TRIBBLE, RE, VANFOSSEN, JA, BIELCIKOVA, J, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ROY, C, MARKERT, C, ENGELAGE, J, MATIS, HS, TIMOSHENKO, S, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, BUELTMANN, S, MOROZOV, B, EUN, L, HJORT, E, EVDOKIMOV, O, FACHINI, P, JACOBS, P, JOSEPH, J, FATEMI, R, RUAN, L, KEANE, D, FEDORISIN, J, LIU, H, MASUI, H, MOROZOV, DA, FERSCH, RG, FILIP, P, FINCH, E, WADA, M, TSAI, OD, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, SEYBOTH, P, KECHECHYAN, A, GANTI, MS, GHOSH, P, SAHOO, R, WALKER, M, and JACOBS, WW
Subjects: Phi-Meson Production, Centrality Dependence, Star, Quark-Gluon Plasma, Heavy-Ion Collisions, High Energy Physics::Experiment, Phase-Transition, Relativistic Nuclear Collisions, Nuclear Experiment, Signature, Collaboration, Anisotropic Flow
Abstract: We present the results of an elliptic flow, v(2), analysis of Cu + Cu collisions recorded with the solenoidal tracker detector (STAR) at the BNL Relativistic Heavy Ion Collider at root s(NN) = 62.4 and 200 GeV. Elliptic flow as a function of transverse momentum, v(2)(p(T)), is reported for different collision centralities for charged hadrons h(+/-) and strangeness-ontaining hadrons K-S(0), Lambda, Xi, and phi in the midrapidity region vertical bar eta vertical bar < 1.0. Significant reduction in systematic uncertainty of the measurement due to nonflow effects has been achieved by correlating particles at midrapidity, vertical bar eta vertical bar < 1.0, with those at forward rapidity, 2.5 < vertical bar eta vertical bar < 4.0. We also present azimuthal correlations in p + p collisions at root s = 200 GeV to help in estimating nonflow effects. To study the system-size dependence of elliptic flow, we present a detailed comparison with previously published results from Au + Au collisions at root s(NN) = 200 GeV. We observe that v(2)(p(T)) of strange hadrons has similar scaling properties as were first observed in Au + Au collisions, that is, (i) at low transverse momenta, p(T) < 2 GeV/c, v(2) scales with transverse kinetic energy, m(T) - m, and (ii) at intermediate p(T), 2 < p(T) < 4 GeV/c, it scales with the number of constituent quarks, n(q.) We have found that ideal hydrodynamic calculations fail to reproduce the centrality dependence of v(2)(p(T)) for K-S(0) and Lambda. Eccentricity scaled v(2) values, v(2)/epsilon, are larger in more central collisions, suggesting stronger collective flow develops in more central collisions. The comparison with Au + Au collisions, which go further in density, shows that v(2)/epsilon depends on the system size, that is, the number of participants N-part. This indicates that the ideal hydrodynamic limit is not reached in Cu + Cu collisions, presumably because the assumption of thermalization is not attained.
Published: 2010

25. Spectra of identified high-p(T) pi(+/-) and p((p)over-bar ) in Cu + Cu collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, BEAVIS, DR, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HAN, LX, BELLWIED, R, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, BENEDOSSO, F, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, BETANCOURT, MJ, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, BETTS, RR, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, BHASIN, A, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, BHATI, AK, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, BICHSEL, H, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, Z, LIN, G, BIELCIK, J, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, BIELCIKOVA, J, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, BIRITZ, B, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITROVSKI, MK, BLAND, LC, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, BONNER, BE, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, BOUCHET, J, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, BRAIDOT, E, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, BRANDIN, AV, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, REHBERG, JM, RITTER, HG, ROBERTS, JB, BRIDGEMAN, A, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, SAKUMA, T, BRUNA, E, SALUR, S, SANDWEISS, J, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, BUELTMANN, S, SEYBOTH, P, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, BUNZAROV, I, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, BURTON, TP, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, CAI, XZ, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, CAINES, H, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, SANCHEZ, MCD, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, CATU, O, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, CEBRA, D, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, Y, XIE, W, CENDEJAS, R, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, CERVANTES, MC, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, CHAJECKI, Z, ZHONG, C, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FACHINI, P, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, and GREBENYUK, O
Subjects: D+Au Collisions, Large Transverse-Momentum, High Energy Physics::Phenomenology, Nuclear Theory, Jets, Quark, P+P, High Energy Physics::Experiment, Hadrons, Nuclear Experiment
Abstract: We report new results on identified (anti) proton and charged pion spectra at large transverse momenta (3 < p(T) < 10 GeV/c) from Cu + Cu collisions at root s(NN) = 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider (RHIC). This study explores the system size dependence of two novel features observed at RHIC with heavy ions: the hadron suppression at high-p(T) and the anomalous baryon to meson enhancement at intermediate transverse momenta. Both phenomena could be attributed to the creation of a new form of QCD matter. The results presented here bridge the system size gap between the available pp and Au + Au data, and allow for a detailed exploration of the onset of the novel features. Comparative analysis of all available 200 GeV data indicates that the system size is a major factor determining both the magnitude of the hadron spectra suppression at large transverse momenta and the relative baryon to meson enhancement.
Published: 2010

26. Longitudinal scaling property of the charge balance function in Au plus Au collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BIRITZ, B, BLAND, LC, BONNER, BE, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CATU, O, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FACHINI, P, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KOPYTINE, M, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LIN, G, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, LS, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITROVSKI, MK, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, SAHOO, R, SAKAI, S, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, YF, XIE, W, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, J, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, ZHONG, C, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, and ZOULKARNEEVA, Y
Subjects: Charge Balance Function, Boost-Invariance, Pairs, Nucleus-Nucleus Collisions, Longitudinal Scaling, E&E Annihilation, Jets, Events, Heavy-Ion Collisions, Particle, Transverse-Momentum
Abstract: We present measurements of the charge balance function, from the charged particles, for diverse pseudorapidity and transverse momentum ranges in Au + Au collisions at root S(NN) = 200 GeV using the STAR detector at RHIC. We observe that the balance function is boost-invariant within the pseudorapidity coverage vertical bar-1.3, 1.3 vertical bar. The balance function properly scaled by the width of the observed pseudorapidity window does not depend on the position or size of the pseudorapidity window. This scaling property also holds for particles in different transverse momentum ranges. In addition, we find that the width of the balance function decreases monotonically with increasing transverse momentum for all centrality classes. .
Published: 2010

27. Observation of pi(+)pi(-)pi(+)pi(-) photoproduction in ultraperipheral heavy-ion collisions at root s(NN)=200 GeV at the STAR detector

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, BEAVIS, DR, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, BELLWIED, R, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, BENEDOSSO, F, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, BETANCOURT, MJ, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, BETTS, RR, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, BHASIN, A, KOLLEGGER, T, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, BHATI, AK, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, BICHSEL, H, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, Z, BIELCIK, J, LIN, G, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, BIELCIKOVA, J, LU, Y, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, BIRITZ, B, MASUI, H, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, BLAND, LC, MITROVSKI, MK, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, BONNER, BE, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, BOUCHET, J, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, BRAIDOT, E, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, BRANDIN, AV, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, REHBERG, JM, RITTER, HG, BRIDGEMAN, A, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, BRUNA, E, SAKUMA, T, SALUR, S, SANDWEISS, J, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, BUELTMANN, S, SELYUZHENKOV, I, SEYBOTH, P, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, BUNZAROV, I, SMIRNOV, N, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, BURTON, TP, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, CAI, XZ, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, CAINES, H, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, SANCHEZ, MCD, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, CATU, O, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, X, WANG, XL, CEBRA, D, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, Y, CENDEJAS, R, XIE, W, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, CERVANTES, MC, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, CHAJECKI, Z, ZHAO, J, ZHONG, C, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CHUNG, SU, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FACHINI, P, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, and GORDON, A
Subjects: Quarkonia, Helicity-Coupling Amplitudes, Physics, Time Projection Chamber, Mass, Photon, Gamma-Gamma
Abstract: We present a measurement of pi(+)pi(-)pi(+)pi(-) photonuclear production in ultraperipheral Au-Au collisions at root s(NN) = 200 GeV from the STAR experiment. The pi(+)pi(-)pi(+)pi(-) final states are observed at low transverse momentum and are accompanied by mutual nuclear excitation of the beam particles. The strong enhancement of the production cross section at low transverse momentum is consistent with coherent photoproduction. The pi(+)pi(-)pi(+)pi(-) invariant mass spectrum of the coherent events exhibits a broad peak around 1540 +/- 40 MeV/c(2) with a width of 570 +/- 60 MeV/c(2), in agreement with the photoproduction data for the rho(0)(1700). We do not observe a corresponding peak in the pi(+)pi(-) final state and measure an upper limit for the ratio of the branching fractions of the rho(0)(1700) to pi(+)pi(-) and pi(+)pi(-)pi(+)pi(-) of 2.5% at 90% confidence level. The ratio of rho(0)(1700) and rho(0)(770) coherent production cross sections is measured to be 13.4 +/- 0.8(stat.) +/- 4.4(syst.)%.
Published: 2010
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28. System size dependence of associated yields in hadron-triggered jets STAR Collaboration

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, BAUMGART, S, BEAVIS, DR, BELLWIED, R, BENEDOSSO, F, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BIRITZ, B, BLAND, LC, BOMBARA, M, BONNER, BE, BOTJE, M, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRUNA, E, BUELTMANN, S, BURTON, TP, BYSTERSKY, M, CAI, XZ, CAINES, H, SANCHEZ, MCD, CATU, O, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, LC, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, I, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, HIPPOLYTE, B, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOPYTINE, M, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KRUS, M, KUHN, C, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, N, LI, C, LI, Y, LIN, G, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, MA, GL, MA, YG, MAHAPATRAM, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, ER, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAR, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, MOLEN, AMV, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WALKER, M, WANG, F, WANG, G, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, XU, Y, XU, Z, YANG, Y, YEPES, P, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, and ZUO, JX
Subjects: Suppression, Parton Energy Loss, Relativistic Heavy-Ion Collisions, Jet Quenching, Di-Hadron Fragmentation Function, Radiative Energy-Loss, Collisions
Abstract: We present results on the system size dependence of high transverse momentum di-hadron correlations at root s(NN) = 200 GeV as measured by STAR at RHIC. Measurements in d + Au, Cu + Cu and Au + Au collisions reveal similar jet-like near-side correlation yields (correlations at small angular separation Delta phi similar to 0, Delta eta similar to 0) for all systems and centralities. Previous measurements have shown Chat the away-side (Delta phi similar to pi) yield is suppressed in heavy-ion collisions. We present measurements of the away-side Suppression as a function of transverse momentum and centrality in Cu + Cu and Au + Au collisions. The suppression is found to be similar in Cu + Cu and An + An collisions at a similar number of participants. The results are compared to theoretical calculations based on the patron quenching model and the modified fragmentation model. The observed differences between data and theory indicate that the correlated yields presented here will further constrain dynamic energy loss models and provide information about the dynamic density profile in heavy-ion collisions. (C) 2009
Published: 2010
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29. Measurement of D* mesons in jets from p plus p collisions at root s=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, BAUMGART, S, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, BEAVIS, DR, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, HIPPOLYTE, B, BELLWIED, R, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, IGO, G, IORDANOVA, A, BENEDOSSO, F, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, BETANCOURT, MJ, KAJIMOTO, K, KANG, K, KAPITAN, J, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIKOLA, DP, KIRYLUK, J, KISIEL, A, BETTS, RR, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOPYTINE, M, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, BHASIN, A, KRUEGER, K, KRUS, M, KUHN, C, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, BHATI, AK, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, N, LI, C, LI, Y, LIN, G, LINDENBAUM, SJ, BICHSEL, H, LISA, MA, LIU, F, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, BIELCIK, J, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, BIELCIKOVA, J, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, BIRITZ, B, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, BLAND, LC, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, BOMBARA, M, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, BONNER, BE, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RIDIGER, A, BOTJE, M, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, BOUCHET, J, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, BRAIDOT, E, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, BRANDIN, AV, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, BRUNA, E, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, BUELTMANN, S, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, BURTON, TP, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, BYSTERSKY, M, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, MOLEN, AMV, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, CAI, XZ, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WALKER, M, WANG, F, WANG, G, WANG, JS, CAINES, H, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, SANCHEZ, MCD, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, XU, Y, XU, Z, YANG, Y, YEPES, P, YOO, IK, CATU, O, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, Y, CEBRA, D, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, ZUO, JX, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, LC, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, and GEURTS, F
Subjects: Z Decays, Physics, Heavy-Quark Production
Abstract: We report the measurement of charged D* mesons in inclusive jets produced in proton-proton collisions at a center-of-mass energy root s = 200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider. For D* mesons with fractional momenta 0.2< z< 0.5 in inclusive jets with 11.5 GeV mean transverse energy, the production rate is found to be N(D*(+) + D*(-))/N(jet) = 0.015 +/- 0.008(stat) +/- 0.007(sys). This rate is consistent with perturbative QCD evaluation of gluon splitting into a pair of charm quarks and subsequent hadronization.
Published: 2009

30. Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au plus Au Collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, BAUMGART, S, BEAVIS, DR, BELLWIED, R, BENEDOSSO, F, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BIRITZ, B, BLAND, LC, BOMBARA, M, BONNER, BE, BOTJE, M, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRUNA, E, BUELTMANN, S, BURTON, TP, BYSTERSKY, M, CAI, XZ, CAINES, H, SANCHEZ, MCD, CATU, O, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, LC, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, HIPPOLYTE, B, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOPYTINE, M, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KRUS, M, KUHN, C, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, N, LI, C, LI, Y, LIN, G, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, REDWINE, R, REED, R, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, MOLEN, AMV, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, XU, Y, XU, Z, YANG, Y, YEPES, P, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, and ZUO, JX
Subjects: Gluon Distribution-Functions, Quark, Monte-Carlo Model, Rapidity Correlations, Strings, Large Nuclei, Sps, Fusion, Energies
Abstract: Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au + Au and p + p collisions at root 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 are in qualitative agreement with the predictions of the DPM and indicate the presence of multiple parton interactions.
Published: 2009
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31. Energy and system size dependence of phi meson production in Cu plus Cu and Au plus Au collisions

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNSBY, LS, BAUDOT, J, BAUMGART, S, BEAVIS, DR, BELLWIED, R, BENEDOSSO, F, BETANCOURT, MJ, BETTS, RR, BHARADWAJ, S, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BIRITZ, B, BLAND, LC, BOMBARA, M, BONNER, BE, BOTJE, M, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRUNA, E, BUELTMANN, S, BURTON, TP, BYSTERSKY, M, CAI, XZ, CAINES, H, SANCHEZ, MCD, CALLNER, J, CATU, O, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, SU, CLARKE, RF, CODRINGTON, MJ, COFFIN, JP, CORLISS, R, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, C, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, E, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPLEMANN, S, HIPPOLYTE, B, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKI, P, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOPYTINE, M, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KRUS, M, KUHN, C, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEIGHT, W, LEVINE, MJ, LI, C, LI, Y, LIN, G, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILLNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NEPALI, C, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, RYKOV, V, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SAVIN, I, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, R, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, E, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, MOLEN, AMV, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WALKER, M, WANG, F, WANG, G, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XU, N, XU, QH, XU, Y, XU, Z, YEPES, P, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, H, ZHANG, S, ZHANG, WM, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, and ZUO, JX
Subjects: Nucleus Collisions, Particle Production, Canonical Suppression, Proton-Proton Collisions, Resonances, Strangeness Enhancement, Quark-Gluon Plasma, Heavy-Ion Collisions, Conservation, Rule, Collaboration, Pp Collisions, Model
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 root s(NN) = 62.4 and 200 GeV measured in the STAR experiment at RHIC. Data presented in this Letter are from mid-rapidity (vertical bar y vertical bar < 0.5) for 0.4 < p(T) < 5 GeV/c. At a given beam energy, the transverse momentum distributions for phi mesons are observed to be similar in yield and shape for Cu + Cu and Au + Au colliding systems with similar average numbers of participating nucleons. The phi meson yields in nucleus-nucleus collisions, normalized by the average number of participating nucleons, are found to be enhanced relative to those from p + p collisions. The enhancement for phi mesons lies between strange hadrons having net strangeness = 1 (K(-) and ) and net strangeness = 2 (Xi). The enhancement for phi mesons is observed to be higher at root s(NN) = 200 GeV compared to 62.4 GeV. These observations for the produced phi(s (s) over bar) mesons clearly suggest that, at these collision energies, the source of enhancement of strange hadrons is related to the formation of a dense partonic medium in high energy nucleus-nucleus collisions and cannot be alone due to canonical suppression of their production in smaller systems. (C) 2009
Published: 2009

32. Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUMGART, S, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HAN, LX, BEAVIS, DR, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, BELLWIED, R, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, BENEDOSSO, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, BETANCOURT, MJ, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, BETTS, RR, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, BHASIN, A, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, BHATI, AK, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, Z, LIN, G, BICHSEL, H, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, BIELCIK, J, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, BIELCIKOVA, J, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITROVSKI, MK, BIRITZ, B, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, BLAND, LC, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, BONNER, BE, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, BOUCHET, J, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, BRAIDOT, E, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, REHBERG, JM, RITTER, HG, ROBERTS, JB, BRANDIN, AV, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, SAKUMA, T, BRIDGEMAN, A, SALUR, S, SANDWEISS, J, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, BRUNA, E, SEYBOTH, P, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, BUELTMANN, S, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, BUNZAROV, I, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, BURTON, TP, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, CAI, XZ, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, CAINES, H, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, SANCHEZ, MCD, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, CATU, O, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, Y, XIE, W, CEBRA, D, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, CENDEJAS, R, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, CERVANTES, MC, ZHONG, C, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, and GREBENYUK, O
Subjects: Photoproduction, Momentum, Parton Distributions, Jet, Hadrons, Nucleon
Abstract: We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive pi(0) production at midrapidity in polarized proton collisions at s=200 GeV. The cross section was measured over a transverse momentum range of 1 < p(T)< 17 GeV/c and found to be in good agreement with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry was measured in the range of 3.7 < p(T)< 11 GeV/c and excludes a maximal positive gluon polarization in the proton. The mean transverse momentum fraction of pi(0)'s in their parent jets was found to be around 0.7 for electromagnetically triggered events.
Published: 2009

33. Neutral pion production in Au plus Au collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, GUPTA, N, GURYN, W, BAUMGART, S, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, HIPPOLYTE, B, HIRSCH, A, HJORT, E, BEAVIS, DR, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, JACOBS, P, BELLWIED, R, JACOBS, WW, JAKL, P, JENA, C, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, BENEDOSSO, F, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIKOLA, DP, KIRYLUK, J, KISIEL, A, BETANCOURT, MJ, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, BETTS, RR, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KRUS, M, KUHN, C, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, BHASIN, A, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, N, LI, Y, BHATI, AK, LIN, G, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, BICHSEL, H, LOVE, WA, LU, Y, LUDLAM, T, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, BIELCIK, J, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, BIELCIKOVA, J, MIODUSZEWSKI, S, MISCHKE, A, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, BIRITZ, B, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, BLAND, LC, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, BNZAROV, I, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, BOMBARA, M, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RIDIGER, A, RITTER, HG, ROBERTS, JB, BONNER, BE, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, SAKUMA, T, BOUCHET, J, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, BRAIDOT, E, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, BRANDIN, AV, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, BRUNA, E, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, BUELTMANN, S, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, BURTON, TP, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, BYSTERSKY, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, CAI, XZ, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, G, CAINES, H, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, SANCHEZ, MCB, XU, Y, XU, Z, YANG, Y, YEPES, P, YIP, K, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, CATU, O, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZHU, X, ZOULKARNEEV, R, CEBRA, D, ZOULKARNEEVA, Y, ZUO, JX, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, LC, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, and GHOSH, P
Subjects: D+Au Collisions, Suppression, Nucleus-Nucleus Collisions, Energy-Loss, P+P, Transverse-Momentum Distributions, Collaboration
Abstract: The results of midrapidity (0 < y < 0.8) neutral pion spectra over an extended transverse momentum range (1 < p(T) < 12 GeV/c) in root 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 or by the Time Projection Chamber via tracking of conversion electron-positron pairs. Our measurements are compared to previously published pi(+/-) and pi(0) results. The nuclear modification factors R(CP) and R(AA) of pi(0) are also presented as a function of p(T). In the most central Au + Au collisions, the binary collision scaled pi(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 the Relativistic Heavy Ion Collider.
Published: 2009

34. J/psi production at high transverse momenta in p plus p and Cu plus Cu collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, BAUMGART, S, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, GUPTA, N, BEAVIS, DR, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, HIPPOLYTE, B, HIRSCH, A, BELLWIED, R, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, IORDANOVA, A, BENEDOSSO, F, JACOBS, P, JACOBS, WW, JAKL, P, JENA, C, JIN, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, BETANCOURT, MJ, KAJIMOTO, K, KANG, K, KAPITAN, J, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIKOLA, DP, KIRYLUK, J, KISIEL, A, BETTS, RR, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOPYTINE, M, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, BHASIN, A, KRUEGER, K, KRUS, M, KUHN, C, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, BHATI, AK, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, N, LI, Y, LIN, G, LINDENBAUM, SJ, BICHSEL, H, LISA, MA, LIU, F, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, BIELCIK, J, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, BIELCIKOVA, J, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MOHANTY, B, MOROZOV, DA, BIRITZ, B, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, BLAND, LC, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, BOMBARA, M, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, PLUTA, J, PLYKU, D, POLJAK, N, BONNER, BE, POSKANZER, AM, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, BOTJE, M, REDWINE, R, REED, R, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, BOUCHET, J, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, BRAIDOT, E, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, BRANDIN, AV, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, BRUNA, E, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, BUELTMANN, S, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, BURTON, TP, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, BYSTERSKY, M, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, MOLEN, AMV, VANFOSSEN, JA, VARMA, R, CAI, XZ, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, CAINES, H, WANG, F, WANG, G, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, SANCHEZ, MCD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, XU, Y, XU, Z, CATU, O, YANG, Y, YEPES, P, YIP, K, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, CEBRA, D, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, ZUO, JX, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CLARKE, RF, CODRINGTON, MJM, CORLISS, R, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, LC, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, and GHAZIKHANIAN, V
Subjects: Nucleus Collisions, Intersecting Storage-Rings, P(P)Over-Bar Collisions, D+Au Collisions, Suppression, Au Collisions, Quark-Gluon Plasma, Heavy-Ion Collisions, J-Psi, Root S=1.8 Tev
Abstract: The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of J/psi e(+) e(-) at midrapidity and high transverse momentum (pT > 5 GeV/c) in p + p and central Cu + Cu collisions at root s(NN) = 200 GeV. The inclusive J/psi production cross section for Cu + Cu collisions is found to be consistent at high p(T) with the binary collision-scaled cross section for p + p collisions. At a confidence level of 97%, this is in contrast to a suppression of J/psi production observed at lower p(T). Azimuthal correlations of J/psi with charged hadrons in p + p collisions provide an estimate of the contribution of B-hadron decays to J/psi production of 13% +/- 5%.
Published: 2009

35. Spin alignment measurements of the K*(0)(892) and phi(1020) vector mesons in heavy ion collisions at root S-NN=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, GARCIA-SOLIS, E, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, BAUMGART, S, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, BEAVIS, DR, HIPPOLYTE, B, HIRSCH, A, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUGHES, EW, HUMANIC, TJ, IGO, G, BELLWIED, R, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JIN, F, JONES, PG, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, BENEDOSSO, F, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, BETTS, RR, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KOPYTINE, M, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KUHN, C, BHARDWAJ, S, KUMAR, A, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LANGE, S, LAPOINTE, S, LAUE, F, LAURET, J, LEBEDEV, A, BHASIN, A, LEDNICKY, R, LEE, CH, LEVINE, MJ, LI, C, LI, Y, LIN, G, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, BHATI, AK, LIU, H, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, BICHSEL, H, MA, GL, MA, JG, MA, YG, MAHAPATRA, DP, MAJKA, R, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, BIELCIK, J, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILLANE, J, MILLER, ML, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, BIELCIKOVA, J, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NEPALI, C, NETRAKANTI, PK, NG, MJ, NOGACH, LV, BIRITZ, B, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAL, SK, PANEBRATSEV, Y, PAWLAK, T, BLAND, LC, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, PORILE, N, POSKANZER, AM, BOMBARA, M, POTEKHIN, M, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUTSCHKE, J, QATTAN, IA, RANIWALA, R, RANIWALA, S, RAY, RL, BONNER, BE, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, RYKOV, V, BOTJE, M, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, BOUCHET, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, SIMON, F, BRAIDOT, E, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, BRANDIN, AV, STASZAK, D, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Z, BUELTMANN, S, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, BURTON, TP, TIMMINS, AR, TIMOSHENKO, S, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, BYSTERSKY, M, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN DER KOLK, N, VAN LEEUWEN, M, MOLEN, AMV, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, CAI, XZ, VIDEBAEK, F, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WANG, F, WANG, G, WANG, JS, CAINES, H, WANG, Q, WANG, X, WANG, XL, WANG, Y, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, SANCHEZ, MCD, WU, J, WU, Y, XU, N, XU, QH, XU, Z, YEPES, P, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, CALLNER, J, ZHAN, W, ZHANG, H, ZHANG, S, ZHANG, WM, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, CATU, O, ZOULKARNEEVA, Y, ZUO, JX, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, SU, CLARKE, RF, CODRINGTON, MJM, COFFIN, JP, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE MOURA, MM, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DIETEL, T, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGADHARAN, DR, and GANTI, MS
Subjects: Physics, Nuclear, Z(0) Decays, Quark-Gluon Plasma, Hyperon Polarization, Magnetic-Moment, High Energy Physics::Experiment, K&P Interactions, Protons, Hadron-Production, Signature, Pp, Nuclear Experiment, High-Energies
Abstract: We present the first spin alignment measurements for the K*(0)(892) and phi(1020) vector mesons produced at midrapidity with transverse momenta up to 5 GeV/c at root 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 +/- 0.04 (stat) +/- 0.09 (syst) for the K*(0) (0.8 < p(T) < 5.0 GeV/c) and rho(00) = 0.34 +/- 0.02 (stat) +/- 0.03 (syst) for the phi (0.4 < p(T) < 5.0 GeV/c) and are constant with transverse momentum and collision centrality. The data are consistent with the unpolarized expectation of 1/3 and thus no evidence is found for the transfer of the orbital angular momentum of the colliding system to the vector-meson spins. Spin alignments for K-*0 and phi in Au+Au collisions were also measured with respect to the particle's production plane. The phi result, rho(00) = 0.41 +/- 0.02 (stat) +/- 0.04 (syst), is consistent with that in p+p collisions, rho(00) = 0.39 +/- 0.03 (stat) +/- 0.06 (syst), also measured in this work. The measurements thus constrain the possible size of polarization phenomena in the production dynamics of vector mesons.
Published: 2008

36. Hadronic resonance production in d+Au collisions at root S(NN) = 200 GeV measured at the BNL Relativistic Heavy Ion Collider

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, GARCIA-SOLIS, ES, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, BAUMGART, S, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HEPPLEMANN, S, BEAVIS, DR, HIPPOLYTE, B, HIRSCH, A, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HUANG, HZ, HUMANIC, TJ, IGO, G, IORDANOVA, A, BELLWIED, R, JACOBS, P, JACOBS, WW, JAKL, P, JIN, F, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, BENEDOSSO, F, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, BETTS, RR, KOCOLOSKI, A, KOETKE, DD, KOPYTINE, M, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KRUS, M, KUHN, C, BHARDWAJ, S, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEVINE, MJ, BHASIN, A, LI, C, LI, Y, LIN, G, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, L, BHATI, AK, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, MA, GL, MA, YG, MAHAPATRA, DP, BICHSEL, H, MAJKA, R, MALL, MI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, BIELCIK, J, MILLANE, J, MILLER, ML, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MISHRA, DK, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, BIELCIKOVA, J, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NEPALI, C, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, BIRITZ, B, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, BLAND, LC, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, BOMBARA, M, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, RAY, RL, REED, R, RIDIGER, A, RITTER, HG, BONNER, BE, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, RYKOV, V, SAHOO, R, SAKREJDA, I, BOTJE, M, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, BOUCHET, J, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, BRAIDOT, E, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STRIKHANOV, M, BRANDIN, AV, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, BRUNA, DETOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, BUELTMANN, S, TLUSTY, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRATTNER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, BURTON, TP, UNDERWOOD, DG, VAN BUREN, G, VAN LEEUWEN, M, MOLEN, AMV, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, BYSTERSKY, M, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WANG, F, WANG, G, WANG, JS, WANG, Q, CAI, XZ, WANG, X, WANG, XL, WANG, Y, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, CAINES, H, XU, N, XU, QH, XU, Y, XU, Z, YEPES, P, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, SANCHEZ, MCD, ZHANG, H, ZHANG, S, ZHANG, WM, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CALLNER, J, ZUO, JX, CATU, O, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPDHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, SU, CLARKE, RF, CODRINGTON, MJM, COFFIN, JP, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE SILVA, C, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANGAHARAN, DR, and GANTI, MS
Subjects: Gluon Production, Particle-Production, Large Transverse-Momentum, Au+Au Collisions, Time Projection Chamber, Inclusive Production, Meson Production, Freeze-Out, Colored Glass, Energy Nuclear Collisions
Abstract: We present the first measurements of the rho(770)(0),K(*)(892),Delta(1232)(++),Sigma(1385), and Lambda(1520) resonances in d+Au collisions at s(NN)=200 GeV, reconstructed via their hadronic decay channels using the STAR detector (the solenoidal tracker at the BNL Relativistic Heavy Ion Collider). The masses and widths of these resonances are studied as a function of transverse momentum p(T). We observe that the resonance spectra follow a generalized scaling law with the transverse mass m(T). The < p(T)> of resonances in minimum bias collisions are compared with the < p(T)> of pi,K, and p. The rho(0)/pi(-),K(*)/K(-),Delta(++)/p,Sigma(1385)/Lambda, and Lambda(1520)/Lambda ratios in d+Au collisions are compared with the measurements in minimum bias p+p interactions, where we observe that both measurements are comparable. The nuclear modification factors (R(dAu)) of the rho(0),K(*), and Sigma(*) scale with the number of binary collisions (N(bin)) for p(T)> 1.2 GeV/c.
Published: 2008

37. Longitudinal double-spin asymmetry for inclusive jet production in (p)over-right-arrow + (p)over-right-arrow collisions at root s=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, BAUMGART, S, BELAGA, VV, BELLINGERI-LAURIKAINEN, A, BELLWIED, R, BENEDOSSO, F, BETTS, RR, BHARDWAJ, S, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BLYTH, SL, BOMBARA, M, BONNER, BE, BOTJE, M, BOUCHET, J, BRANDIN, AV, BURTON, TP, BYSTERSKY, M, CAI, XZ, CAINES, H, SANCHEZ, MCDLB, CALLNER, J, CATU, O, CEBRA, D, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHUNG, SU, CLARKE, RF, CODRINGTON, MJM, COFFIN, JP, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE MOURA, MM, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DIDENKO, L, DIETEL, T, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNIN, VB, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, FU, J, GAGLIARDI, CA, GAILLARD, L, GANTI, MS, GARCIA-SOLIS, E, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GOS, H, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, A, GUPTA, N, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HENRY, TW, HEPPELMANN, S, HIPPOLYTE, B, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, HORNER, MJ, HUANG, HZ, HUGHES, EW, HUMANIC, TJ, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JONES, PG, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIRYLUK, J, KISIEL, A, KISLOV, EM, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KOPYTINE, M, KOTCHENDA, L, KOUCHPIL, V, KOWALIK, KL, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KUHN, C, KULIKOV, AI, KUMAR, A, KURNADI, P, KUZNETSOV, AA, LAMONT, MAC, LANDGRAF, JM, LANGE, S, LAPOINTE, S, LAUE, F, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEHOCKA, S, LEVINE, MJ, LI, C, LI, Q, LI, Y, LIN, G, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, MA, GL, MA, JG, MA, YG, MAHAPATRA, DP, MAJKA, R, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MARTIN, L, MATIS, HS, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILLANE, J, MILLER, ML, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NEPALI, C, NETRAKANTI, PK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKOROKOV, V, OLSON, D, PACHR, M, PAL, SK, PANEBRATSEV, Y, PAVLINOV, AI, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, PORILE, N, POSKANZER, AM, POTEKHIN, M, POTREBENIKOVA, E, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUTSCHKE, J, QATTAN, IA, RANIWALA, R, RANIWALA, S, RAY, RL, RELYEA, D, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SAZHIN, PS, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHEN, WQ, SHIMANSKIY, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPELTZ, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TIMOSHENKO, S, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN DER KOLK, N, VAN LEEUWEN, M, MOLEN, AMV, VARMA, R, VASILEVSKI, IM, VASILIEV, AN, VERNET, R, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WANG, F, WANG, G, WANG, JS, WANG, XL, WANG, Y, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, J, WU, Y, XU, N, XU, QH, XU, Z, YEPES, P, YOO, IK, YUE, Q, YUREVICH, VI, ZAWISZA, M, ZHAN, W, ZHANG, H, ZHANG, WM, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, ZUBAREV, AN, and ZUO, JX
Subjects: Photoproduction, Pair, Nuclear Theory, Physics, Multidisciplinary, High Energy Physics::Experiment, Polarized Protons, Nuclear Experiment, Nucleon
Abstract: We report a new STAR measurement of the longitudinal double-spin asymmetry A(LL) for inclusive jet production at midrapidity in polarized p+p collisions at a center-of-mass energy of root 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 to polarized deep-inelastic scattering 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 to polarized deep-inelastic scattering measurements.
Published: 2008

38. Centrality dependence of charged hadron and strange hadron elliptic flow from root s(NN)=200 GeVAu+Au collisions

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, GREBENYUK, O, GROSNICK, D, GRUBE, B, GUERTIN, SM, GUPTA, A, GUPTA, N, GURYN, W, HAAG, B, HALLMAN, TJ, HAMED, A, BAUMGART, S, HARRIS, JW, HE, W, HEINZ, M, HEPPELMANN, S, HIPPOLYTE, B, HIRSCH, A, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, DJ, HOLLIS, RS, BEAVIS, DR, HUANG, HZ, HUGHES, EW, HUMANIC, TJ, LGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JIN, F, JONES, PG, BELLWIED, R, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, BENEDOSSO, F, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KOPYTINE, M, KOTCHENDA, L, KOUCHPIL, V, BETTS, RR, KRAVTSOV, P, KRAVTSOV, V, KRUEGER, K, KUHN, C, KUMAR, A, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LANGE, S, BHARDWAJ, S, LAPOINTE, S, LAUE, F, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEVINE, MJ, LI, C, LI, Y, LIN, G, BHASIN, A, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, BHATI, AK, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, MA, GL, MA, JG, MA, YG, MAHAPATRA, DP, MAJKA, R, MANGOTRA, LK, BICHSEL, H, MANWEILER, R, MARGETIS, S, MARKERT, C, MATIS, HS, MATULENKO, YA, MCSHANE, TS, MESCHANIN, A, MILLANE, J, MILLER, ML, MINAEV, NG, BIELCIK, J, MIODUSZEWSKI, S, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, BIELCIKOVA, J, NEPALI, C, NETRAKANTI, PK, NG, MJ, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLDENBURG, M, BLAND, LC, OLSON, D, PACHR, M, PAL, SK, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, BOMBARA, M, PLANINIC, M, PLUTA, J, POLJAK, N, PORILE, N, POSKANZER, AM, POTEKHIN, M, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, BONNER, BE, PUTSCHKE, J, QATTAN, IA, RANIWALA, R, RANIWALA, S, RAY, RL, RELYEA, D, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, BOTJE, M, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, RYKOV, V, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, BRAIDOT, E, SANDWEISS, J, SARSOUR, M, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHWEDA, K, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, BRANDIN, AV, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHI, XH, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, BUELTMANN, S, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STOCK, R, STRIKHANOV, M, BURTON, TP, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, BYSTERSKY, M, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, TOKAREV, M, CAI, XZ, TRAM, VN, TRATMER, AL, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN DER KOLK, N, CAINES, H, VAN LEEUWEN, M, MOLEN, AMV, VARMA, R, VASCONCELOS, GMS, VASILEVSKI, IM, VASILIEV, AN, VIDEBAEK, F, VIGDOR, SE, VIYOGI, YP, VOKAL, S, SANCHEZ, MCD, VOLOSHIN, SA, WADA, M, WAGGONER, WT, WANG, F, WANG, G, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, CALLNER, J, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, J, WU, Y, XU, N, XU, QH, CATU, O, XU, Z, YEPES, P, YOO, IK, YUE, Q, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, H, ZHANG, S, ZHANG, WM, CEBRA, D, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKAMEEV, R, ZOULKARNEEVA, Y, ZUO, JX, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, SU, CLARKE, RF, CODRINGTON, MJM, COFFIN, JP, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE MOURA, MM, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DIETEL, T, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNLOP, JC, MAZUMDAR, MRD, EDWARDS, WR, EFIMOV, LG, ELHALHULI, E, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GAILLARD, L, GANTI, MS, GARCIA-SOLIS, E, GHAZIKHANIAN, V, GHOSH, R, GORBUNOV, YN, and GORDON, A
Subjects: Expansion, Energy, Nuclear Theory, Lee-Yang Zeros, Relativistic Nuclear Collisions, Collective Flow, Signature, Collaboration, Anisotropic Flow, Physics, Nuclear, Quark-Gluon Plasma, High Energy Physics::Experiment, Phase-Transition, Nuclear Experiment
Abstract: We present STAR results on the elliptic flow upsilon(2) Of charged hadrons, strange and multistrange particles from,root s(NN) = 200 GeV Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). The detailed study of the centrality dependence of upsilon(2) over a broad transverse momentum range is presented. Comparisons of different analysis methods are made in order to estimate systematic uncertainties. To discuss the nonflow effect, we have performed the first analysis Of upsilon(2) with the Lee-Yang zero method for K-S(0) and A. In the relatively low PT region, P-T
Published: 2008

39. Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUMGART, S, BELAGA, VV, BELLINGERI-LAURIKAINEN, A, BELLWIED, R, BENEDOSSO, F, BETTS, RR, BHARADWAJ, S, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BILLMEIER, A, BLAND, LC, BLYTH, SL, BOMBARA, M, BONNER, BE, BOTJE, M, BOUCHET, J, BRANDIN, AV, BRAVAR, A, BURTON, TP, BYSTERSKY, M, CADMAN, RV, CAI, XZ, CAINES, H, SANCHEZ, MCD, CALLNER, J, CATU, O, CEBRA, D, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, HA, CHRISTIE, W, CHUNG, SU, COFFIN, JP, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE MOURA, MM, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DIDENKO, L, DIETEL, T, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNIN, VB, DUNLOP, JC, MAZUMDAR, MRD, ECKARDT, V, EDWARDS, WR, EFIMOV, LG, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, FORNAZIER, KSF, FU, J, GAGLIARDI, CA, GAILLARD, L, GANTI, MS, GARCIA-SOLIS, E, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YG, GOS, H, GREBENYUK, O, GROSNICK, D, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, N, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HENRY, TW, HEPPLEMANN, S, HIPPOLYTE, B, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, D, HOLLIS, R, HORNER, MJ, HUANG, HZ, HUGHES, EW, HUMANIC, TJ, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JIA, F, JIANG, H, JONES, PG, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIM, BC, KIRYLUK, J, KISIEL, A, KISLOV, EM, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KOPYTINE, M, KOTCHENDA, L, KOUCHPIL, V, KOWALIK, KL, KRAMER, M, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KUHN, C, KULIKOV, AI, KUMAR, A, KURNADI, P, KUZNETSOV, AA, LAMONT, MAC, LANDGRAF, JM, LANGE, S, LAPOINTE, S, LAUE, F, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEHOCKA, S, LEVINE, MJ, LI, C, LI, Q, LI, Y, LIN, G, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONG, H, LONGACRE, RS, LOPEZ-NORIEGA, M, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, MA, GL, MA, JG, MA, YG, MAHAPATRA, DP, MAJKA, R, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MARTIN, L, MATIS, HS, MATULENKO, YA, MCCLAIN, CJ, MCSHANE, TS, MELNICK, Y, MESCHANIN, A, MILLANE, J, MILLER, ML, MINAEV, NG, MIODUSZEWSKI, S, MIRONOV, C, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOLNAR, L, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NEPALI, C, NETRAKANTI, PK, NIKITIN, VA, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKOROKOV, V, OLDENBURG, M, OLSON, D, PACHR, M, PAL, SK, PANEBRATSEV, Y, PANITKIN, SY, PAVLINOV, AI, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, PORILE, N, POSKANZER, AM, POTEKHIN, M, POTREBENIKOVA, E, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PUTSCHKE, J, QATTAN, IA, RANIWALA, R, RANIWALA, S, RAY, RL, RAZIN, SV, REINNARTH, J, RELYEA, D, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SAVIN, I, SAZHIN, PS, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHEN, WQ, SHIMANSKIY, SS, SICHTERMANN, E, SIMON, F, SINGARAJU, RN, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPELTZ, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, AK, JT, TANG, AH, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TIMOSHENKO, S, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN DER KOLK, N, VAN LEEUWEN, M, MOLEN, AMV, VARMA, R, VASILEVSKI, IM, VASILIEV, AN, VERNET, R, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WAGGONER, WT, WANG, F, WANG, G, WANG, JS, WANG, XL, WANG, Y, WATSON, JW, WEBB, JC, WESTFALL, GD, WETZLER, A, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, J, XU, N, XU, QH, XU, Z, YEPES, P, YOO, IK, YUE, Q, YUREVICH, VI, ZHAN, W, ZHANG, H, ZHANG, WM, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZOULKARNEEV, R, ZOULKARNEEVA, Y, ZUBAREV, AN, and ZUO, JX
Subjects: D+Au Collisions, Particle Production, Jet Quenching, Nucleus-Nucleus Collisions, Star Experiment, Particle Identification, Hadron-Production, Collaboration, Recombination, Jet, Fragmentation, Quark-Gluon Plasma, Particle Ratios, Proton, Resistive Plate Chambers, Nuclear Modification Factor
Abstract: We study the energy dependense of the transverse momentum (PT) spectra for charged pions, protons and anti-protons for An + An collisions at root(NN)-N-s = 62.4 and 200 GeV. Data are presented at mid-rapidity (broken vertical bar y broken vertical bar < 0.5) for 0.2 < PT < 12 GeV/c. In the intermediate PT region (2 < PT < 6 GeV/c), the nuclear modification factor is higher at 62.4 GeV than at 200 GeV, while at higher PT (PT > 7 GeV/c) the modification is similar for both energies. The p/pi(+) and (p) over bar/pi(-) ratios for central collisions at root(NN)-N-s = 62.4 GeV peak at PT similar or equal to 2 GeV/c. In the PT range where recombination is expected to dominate, the p/pi(+) ratios at 62.4 GeV are larger than at 200 GeV, while the (p) over bar/pi(-) ratios are smaller. For PT > 2 GeV/c, the (p) over bar/pi(-) ratios at the two beam energies are independent of P-T and centrality indicating that the dependence of the (p) over bar/pi(-) ratio on P-T does not change between 62.4 and 200 GeV. These findings challenge various models incorporating jet quenching and/or constituent quark coalescence. (C) 2007
Published: 2007

40. Transverse momentum and centrality dependence of High-p(T) nonphotonic electron suppression in Au plus Au collisions at root(NN)-N-S=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, BAUMGART, S, BELAGA, VV, BELLINGERI-LAURIKAINEN, A, BELLWIED, R, BENEDOSSO, F, BETTS, RR, BHARDWAJ, S, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BLYTH, SL, BOMBARA, M, BONNER, BE, BOTJE, M, BOUCHET, J, BRANDIN, AV, BRAVAR, A, BURTON, TP, BYSTERSKY, M, CADMAN, RV, CAI, XZ, CAINES, H, SANCHEZ, MCD, CALLNER, J, CATU, O, CEBRA, D, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHUNG, SU, COFFIN, JP, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE MOURA, MM, DEDOVICH, TG, DEPHILLIPS, M, DEREVSCHIKOV, AA, DIDENKO, L, DIETEL, T, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, DUNIN, VB, DUNLOP, JC, MAZUMDAR, MRD, ECKARDT, V, EDWARDS, WR, EFIMOV, LG, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, FU, J, GAGLIARDI, CA, GAILLARD, L, GANTI, MS, GARCIA-SOLIS, E, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YG, GOS, H, GREBENYUK, O, GROSNICK, D, GUERTIN, SM, GUIMARAES, KSFF, GUPTA, N, HAAG, B, HALLMAN, TJ, HAMED, A, HARRIS, JW, HE, W, HEINZ, M, HENRY, TW, HEPPELMANN, S, HIPPOLYTE, B, HIRSCH, A, HJORT, E, HOFFMAN, AM, HOFFMANN, GW, HOFMAN, D, HOLLIS, R, HORNER, MJ, HUANG, HZ, HUGHES, EW, HUMANIC, TJ, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JIA, F, JONES, PG, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, KIM, BC, KIRYLUK, J, KISIEL, A, KISLOV, EM, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KOPYTINE, M, KOTCHENDA, L, KOUCHPIL, V, KOWALIK, KL, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KUHN, C, KULIKOV, AI, KUMAR, A, KURNADI, P, KUZNETSOV, AA, LAMONT, MAC, LANDGRAF, JM, LANGE, S, LAPOINTE, S, LAUE, F, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEHOCKA, S, LEVINE, MJ, LI, C, LI, Q, LI, Y, LIN, G, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, LIU, H, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, MA, GL, MA, JG, MA, YG, MAGESTRO, D, MAHAPATRA, DP, MAJKA, R, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MARTIN, L, MATIS, HS, MATULENKO, YA, MCCLAIN, CJ, MCSHANE, TS, MELNICK, Y, MESCHANIN, A, MILLANE, J, MILLER, ML, MINAEV, NG, MIODUSZEWSKI, S, MIRONOV, C, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, NEPALI, NS, NETRAKANTI, PK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKOROKOV, V, OLDENBURG, M, OLSON, D, PACHR, M, PAL, SK, PANEBRATSEV, Y, PAVLINOV, AI, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, PLUTA, J, POLJAK, N, PORILE, N, POSKANZER, AM, POTEKHIN, M, POTREBENIKOVA, E, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PUTSCHKE, J, QATTAN, IA, RANIWALA, R, RANIWALA, S, RAY, RL, RELYEA, D, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, SAZHIN, PS, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, SHARMA, M, SHEN, WQ, SHIMANSKIY, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, SPELTZ, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Z, SURROW, B, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TIMOSHENKO, S, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, ULERY, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN DER KOLK, N, VAN LEEUWEN, M, VANDER MOLEN, AM, VARMA, R, VASILEVSKI, IM, VASILIEV, AN, VERNET, R, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WAGGONER, WT, WANG, F, WANG, G, WANG, JS, WANG, XL, WANG, Y, WATSON, JW, WEBB, JC, WESTFALL, GD, WETZLER, A, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WU, J, WU, Y, XU, N, XU, QH, XU, Z, YEPES, P, YOO, IK, YUE, Q, YUREVICH, VI, ZHAN, W, ZHANG, H, ZHANG, WM, ZHANG, Y, ZHANG, ZP, ZHAO, Y, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, ZUBAREV, AN, and ZUO, JX
Subjects: Perturbative Qcd, Energy-Loss, High Energy Physics::Phenomenology, Physics, Multidisciplinary, Particle Identification, High Energy Physics::Experiment, Nuclear Experiment, Tomography, Heavy-Quark Production
Abstract: The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2 < p(T)< 10 GeV/c) in p+p, d+Au, and Au+Au collisions at root s(NN)=200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p(T), suggesting substantial heavy-quark energy loss at RHIC. The centrality and p(T) dependences of the suppression provide constraints on theoretical models of suppression.
Published: 2007

41. Partonic flow and phi-meson production in Au+Au collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BAI, Y, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUDOT, J, LIU, J, LIU, L, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUDLAM, T, LYNN, D, BHATI, AK, GROSNICK, D, MA, GL, MA, JG, MA, YG, MAHAPATRA, DP, MAJKA, R, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MARTIN, L, GRUBE, B, BICHSEL, H, MATIS, HS, MATULENKO, YA, MCCLAIN, CJ, MCSHANE, TS, MELNICK, Y, MESCHANIN, A, MILLANE, J, MILLER, ML, MINAEV, NG, GUERTIN, SM, MIODUSZEWSKI, S, BIELCIK, J, MIRONOV, C, MISCHKE, A, MITCHELL, J, MOHANTY, B, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, GUIMARAES, KSFF, NAYAK, TK, NELSON, JM, BIELCIKOVA, J, NEPALI, C, NETRAKANTI, PK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKOROKOV, V, GUPTA, N, OLDENBURG, M, OLSON, D, PACHR, M, BLAND, LC, PAL, SK, PANEBRATSEV, Y, PAVLINOV, AI, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, HAAG, B, PERKINS, C, PERYT, W, PHATAK, SC, PLANINIC, M, BLYTH, SL, PLUTA, J, POLJAK, N, PORILE, N, POSKANZER, AM, POTEKHIN, M, HALLMAN, TJ, POTREBENIKOVA, E, POTUKUCHI, BVKS, PRINDLE, D, PRUNEAU, C, PUTSCHKE, J, BOMBARA, M, QATTAN, IA, RANIWALA, R, RANIWALA, S, RAY, RL, HAMED, A, RELYEA, D, RIDIGER, A, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, BONNER, BE, ROSE, A, ROY, C, RUAN, L, HARRIS, JW, RUSSCHER, MJ, SAHOO, R, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SARSOUR, M, BOTJE, M, SAZHIN, PS, SCHAMBACH, J, HE, W, SCHARENBERG, RP, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHABETAI, A, SHAHALIEV, E, SHAO, M, BOUCHET, J, SHARMA, M, BAUMGART, S, SHEN, WQ, SHIMANSKIY, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SMIRNOV, N, SNELLINGS, R, SORENSEN, P, SOWINSKI, J, BRANDIN, AV, HEINZ, M, SPELTZ, J, SPINKA, HM, SRIVASTAVA, B, STADNIK, A, STANISLAUS, TDS, STASZAK, D, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, HENRY, TW, BRAVAR, A, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Z, SURROW, B, SYMONS, TJM, SZANTO DE TOLEDO, A, TAKAHASHI, J, HEPPELMANN, S, TANG, AH, BURTON, TP, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TIMOSHENKO, S, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, HIPPOLYTE, B, TSAI, OD, ULERY, J, BYSTERSKY, M, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN DER KOLK, N, VAN LEEUWEN, M, MOLEN, AMV, VARMA, R, HIRSCH, A, VASILEVSKI, IM, VASILIEV, AN, VERNET, R, CADMAN, RV, VIGDOR, SE, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WAGGONER, WT, WANG, F, HJORT, E, WANG, G, WANG, JS, WANG, XL, WANG, Y, CAI, XZ, WATSON, JW, WEBB, JC, WESTFALL, GD, WETZLER, A, WHITTEN, C, HOFFMAN, AM, WIEMAN, H, WISSINK, SW, WITT, R, WU, J, WU, Y, CAINES, H, XU, N, XU, QH, XU, Z, YEPES, P, HOFFMANN, GW, YOO, IK, YUE, Q, YUREVICH, VI, ZHAN, W, ZHANG, H, ZHANG, WM, CALDERON DE LA BARCA SANCHEZ, M, ZHANG, Y, ZHANG, ZP, ZHAO, Y, HOFMAN, DJ, ZHONG, C, ZHOU, J, ZOULKARNEEV, R, ZOULKARNEEVA, Y, ZUBAREV, AN, ZUO, JX, CALLNER, J, CATU, O, CEBRA, D, CHAJECKI, Z, HOLLIS, RS, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHUNG, SU, BELAGA, VV, COFFIN, JP, CORMIER, TM, COSENTINO, MR, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, DAUGHERITY, M, DE MOURA, MM, DEDOVICH, TG, HORNER, MJ, DEPHILLIPS, M, DEREVSCHIKOV, AA, DIDENKO, L, DIETEL, T, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, F, HUANG, HZ, DUNIN, VB, DUNLOP, JC, MAZUMDAR, MRD, ECKARDT, V, EDWARDS, WR, EFIMOV, LG, EMELIANOV, V, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, HUGHES, EW, ESTIENNE, M, FACHINI, P, FATEMI, R, FEDORISIN, J, FENG, A, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, FU, J, HUMANIC, TJ, GAGLIARDI, CA, GAILLARD, L, GANTI, MS, GARCIA-SOLIS, E, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YG, GOS, H, GREBENYUK, O, IGO, G, IORDANOVA, A, JACOBS, P, JACOBS, WW, JAKL, P, JIA, F, BELLINGERI-LAURIKAINEN, A, JONES, PG, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAPLAN, M, KEANE, D, KECHECHYAN, A, KETTLER, D, KHODYREV, VY, BELLWIED, R, KIM, BC, KIRYLUK, J, KISIEL, A, KISLOV, EM, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KOPYTINE, M, BENEDOSSO, F, KOTCHENDA, L, KOUCHPIL, V, KOWALIK, KL, KRAVTSOV, P, KRAVTSOV, VI, KRUEGER, K, KUHN, C, KULIKOV, AI, KUMAR, A, KURNADI, P, BETTS, RR, KUZNETSOV, AA, LAMONT, MAC, LANDGRAF, JM, LANGE, S, LAPOINTE, S, LAUE, F, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, BHARDWAJ, S, LEHOCKA, S, LEVINE, MJ, LI, C, LI, Q, LI, Y, LIN, G, LIN, X, LINDENBAUM, SJ, LISA, MA, LIU, F, BHASIN, A, and LIU, H
Subjects: High Energy Physics::Lattice, High Energy Physics::Phenomenology, Nuclear Theory, Physics, Multidisciplinary, Signature, Collaboration, Nuclei, Qcd, Anisotropic Flow, Photoproduction, Elliptic Flow, Perspective, Quark-Gluon Plasma, High Energy Physics::Experiment, Nuclear Experiment
Abstract: We present first measurements of the phi-meson elliptic flow (v(2)(p(T))) and high-statistics p(T) distributions for different centralities from root s(NN) = 200 GeV Au+Au collisions at RHIC. In minimum bias collisions the v(2) of the phi meson is consistent with the trend observed for mesons. The ratio of the yields of the Omega to those of the phi as a function of transverse momentum is consistent with a model based on the recombination of thermal s quarks up to p(T)similar to 4 GeV/c, but disagrees at higher momenta. The nuclear modification factor (R-CP) of phi follows the trend observed in the K-S(0) mesons rather than in Lambda baryons, supporting baryon-meson scaling. These data are consistent with phi mesons in central Au+Au collisions being created via coalescence of thermalized s quarks and the formation of a hot and dense matter with partonic collectivity at RHIC.
Published: 2007

42. 'If I hadn't seen this picture, I'd be smoking'-perceptions about innovations in health warnings for cigarette packages in Brazil: a focus group study.

Author: Perez CA, Camacho LAB, Mendes FL, Oliveira da Silva AL, Figueiredo VC, Latuf GMO, Fernandes AMMS, Albertassi PGD, Castello Branco PA, Branco PF, Piras SS, and Suarez MC
Subjects: Adult, Humans, Adolescent, Product Labeling methods, Focus Groups, Brazil, Smoking, Smoking Cessation methods, Tobacco Products
Abstract: Objective: To investigate the perceptions of young people and adults, smokers and non-smokers about the current set of innovations introduced in 2018 into the Brazilian tobacco products' health warnings., Methods: Twenty focus groups were conducted in five state capitals in Brazil. The participants (n=163) were segmented by smoking status, age (15-17 years, 18-55 years) and social grade (C, D-E classes) to examine cigarette packaging and explore the participants' perceptions of health warnings., Results: Health warnings capture attention, eliciting apprehension, fear, disgust and concern about the negative consequences of cigarette consumption. The 2018 Brazil health warnings are spontaneously recalled by participants, even without the presence of cigarette packages. However, the analysis also reveals the challenges of overcoming communication barriers and distorted interpretations, especially among smokers. The inclusion of direct and provocative stimuli, such as the use of the word 'you', attracts attention and creates more proximity to the recipient of the message. The results also highlight the interest and fear elicited by warnings on toxic constituents and the importance of using contrasting colours in warnings, which differentiate them from the colours of cigarette packs., Conclusion: Introducing innovative components in health warnings can catch consumers' attention but considering that the interviewees encountered difficulties interpreting textual warnings about toxic constituents in cigarettes, the study reinforces the importance of adopting direct language and pictures, instead of text, which can visually transmit the warning messages and the use of specific wording that generates proximity between the emitter and receiver., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)
Published: 2023
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43. Small Intestinal Submucosa for corporeal body grafting in patients with proximal hypospadias and severe chordee: Long term follow-up assessing erectile function and genital self-perception.

Author: Guevara CG, Suarez MC, Raymo A, Ransford GA, Nassau DE, Alam A, Labbie AS, Castellan MA, and Gosalbez R
Subjects: Male, Humans, Child, Adolescent, Follow-Up Studies, Retrospective Studies, Penis surgery, Self Concept, Hypospadias surgery, Erectile Dysfunction
Abstract: Background: Proximal hypospadias and severe ventral chordee are often challenging to repair. To preserve penile length in chordee repair, Small Intestinal Submucosa (SIS) corporal grafting is often performed with potential long-term complications including recurrent curvature and erectile dysfunction (ED). There is a paucity of data evaluating sexual function in mid, late and post-pubertal patients., Objective: We aimed to assess long-term outcomes of genital self-perception and erectile function in mid, late and post-pubertal patients who underwent single-layer (1-ply) SIS corporal body grafting for correction of severe chordee., Study Design: Patients with proximal hypospadias who underwent correction of severe chordee using SIS grafting between 2001 and 2015 were retrospectively identified. Patients were evaluated for erectile and sexual function using the modified erection hardness score (mEHS) and the modified sexual health inventory for men (mSHIM). Perceived function and straightness were measured with Hypospadias Objective Scoring Evaluation (HOSE). Penile self-perception was assessed using the Pediatric Penile Perception Score (PPPS). Results were compared to an age-matched healthy control group. Categorical variables were analyzed using Fisher's exact test, and continuous variables using paired and unpaired t-test and ANOVA., Results: Nineteen patients with proximal hypospadias who underwent correction of severe chordee using SIS grafting and 18 controls participated in the study with a median age of 17 years for both groups. In the mEHS, 12 (63.2%) hypospadias-patients and 14 (87.5%) controls rated their erections as completely hard and very rigid. In the mSHIM, 1 (5.2%) hypospadias-patient was classified as having moderate ED. A total of 16 hypospadias-patients (84%) and 16 controls (88.9%) reported being very satisfied or satisfied with the straightness of their penis. No significant difference was observed in the mEHS, mSHIM and PPPS between groups (p < 0.05). The straightness of the erection was rated lower by participants, than by the pediatric urologist. In the HOSE, 12 (63.2%) hypospadias-patients and 16 (88.9%) controls obtained an acceptable score., Discussion: Our findings indicate favorable long-term outcomes in ED and genital self-perception; only 5% of our population reported having a mild-moderate to moderate presentation of ED, and there were no reports of severe ED. The overall PPPS satisfaction rates were statistically similar for the control and hypospadias groups. The small sample population limits the significance of our findings., Conclusion: Corporal body grafting with 1-ply SIS suggests positive long-term outcomes in genital self-perception and erectile function, with mid, late and post-pubertal patients who underwent hypospadias repair having comparable results to age-matched healthy controls., Competing Interests: Conflict of interest The authors have no conflicts of interest to report., (Copyright © 2022 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved.)
Published: 2022
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44. Simultaneous placement of fecal and urinary continent channel stomas in the umbilicus: Single-center experience.

Author: Quintanilla R, Galvez C, Nassau DE, Suarez MC, Babastro Y, Ransford A, Castellan M, Alam A, and Gosalbez R
Subjects: Humans, Adolescent, Cystostomy methods, Enema adverse effects, Umbilicus surgery, Retrospective Studies, Follow-Up Studies, Surgical Stomas, Urinary Bladder, Neurogenic surgery, Fecal Incontinence etiology
Abstract: Introduction: In patients with urinary continent channel (UCC) and Malone Antegrade Continent Enema (MACE) procedures, two separate abdominal stomas are needed. The umbilicus is a preferred site for single channel stomas given the ability to conceal the stoma. However, there are no studies describing outcomes of both stomas being created in the umbilicus. We aimed to describe our experience in patients who underwent UCC and MACE stomas both placed in the umbilicus., Methods: A retrospective review from 2009 to 2020 was performed in our institution for patients who underwent the creation of UCC and MACE stomas simultaneously in the umbilicus. The variation in the technique involves two V-skin shaped flaps in the umbilicus; the MACE and UCC stomas are delivered from both flaps and placed at the right and left side respectively. Patients with greater than 3 months of follow-up were included in the study., Results: There were 17 patients identified with the median age of 13.5 years and a median follow-up of 32.8 months. The mean BMI percentile was 89.5%. Monti technique and split appendix with cecal extension were utilized in 8 (47.1%) and 7 (41.2%) patients respectively and 13 (76.5%) patients required concurrent urological procedures. All channel-related complications occurred within a mean time of 15.7 months. Skin-level stenosis in the MACE occurred in 5 (29.4%) events, and all were successfully managed by placing an indwelling catheter for up to two weeks. There were 2 (11.8%) complications related to UCC, which required subfascial minor surgical revision. The rate of patients with symptomatic UTI decreased 35.3% postoperatively, and no new onset of UTI occurred in patients without a prior history of UTI. During follow-up, all patients remained dry between CIC, however one had occasional leakage related to delay in catheterization. Total fecal continence was achieved in 14 (82.3%) patients. Additionally, 3 (16.6%) patients experienced improvement in fecal continence with sporadic soiling episodes., Comments: Placement of UCC and MACE stomas in the umbilicus demonstrate a percentage of complication of 7/34 (20.6%) with only 2 patients requiring surgical intervention, comparable to the standard. UTI rate decreased in patients with a prior history of UTI. We believe the patients' perspective and degree of satisfaction will fully determine the benefits of this technique., Conclusions: Simultaneous UCC and MACE stomas placed at the umbilicus showed good functional outcomes and similar complication rates to traditional approach where stomas were placed separately in the abdominal wall., (Copyright © 2022. Published by Elsevier Ltd.)
Published: 2022
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45. Nursing students faced with organ donation: Multicenter stratified national study.

Author: Martínez-Alarcón L, Balaguer A, Santainés-Borredá E, Agras-Suarez MC, Cañadas-De la Fuente GA, Hurtado-Pardos B, Bárcena-Calvo C, Perelló-Campaner C, Arribas-Marin JM, García-Mayor S, Soto-Ruíz MN, Navalón JC, Bertran-Noguer C, Peña-Amaro MP, Jiménez-Herrera MF, Blanco-Sánchez R, Calvo-Sánchez MD, Prado-Laguna MC, González-García A, Martínez-Rodríguez A, Bas-Sarmiento P, Faus-Gabandé F, Muiños-Alvarez A, Peyró-Gregori L, Hernández-Martínez H, Saez A, Sánchez Á, López-Navas A, Ramírez P, and Ríos A
Subjects: Attitude, Health Knowledge, Attitudes, Practice, Humans, Surveys and Questionnaires, Organ Transplantation, Students, Nursing, Tissue and Organ Procurement
Abstract: Aim: To analyze the attitude of university nursing students at Spanish universities toward organ donation and transplantation and the factors affecting to their attitude., Background: The opinion of future nurses toward organ transplant donation could have an important influence on the population. Knowing that opinion and what factors influence it is important to improve the attitude towards organ donation and transplantation., Design: A multicenter, sociological, interdisciplinary and observational study including university nursing diploma students in a complete academic year., Methods: Selected and randomized sample was taken of students from 52 of the 111 faculties and nursing schools and faculties in Spain with teaching activity PARTICIPANTS: A sample of 10,566 students was selected stratified by geographical area and year., Measurement Instrument: The instrument used was a validated questionnaire of attitude toward organ donation and transplantation, self-administered and completed anonymously., Results: Completion rate: 85 % (n = 9001). Of the students surveyed, 78 % (n = 7040) would donate their organs after dying. Variables related to a favourable attitude: (1) Interest in listening to a talk about organ donation and transplantation [Odds ratio 1.66, 95 % confidence interval 2.05-1.35]; (2) Family discussion [Odds ratio 2.30, 95 % confidence interval 2.79-1.90] or discussion with friends about organ donation and transplantation [Odds ratio 1.56, 95 % confidence interval 1.86-1.31]; (3) Knowing that one's father [Odds ratio 1.54, 95 % confidence interval 1.94-1.22], mother's [Odds ratio 1.44, 95 % confidence interval 1.82-1.13] or partner [Odds ratio 1.28, 95 % confidence interval 1.60-1.03] has a favourable opinion; (4) Having a good self-assessment of information about organ donation and transplantation [Odds ratio 2.94, 95 % confidence interval 4.90-1.78]; (5) Not being worried about possible mutilation of the body after donation [Odds ratio 2.73, 95 % confidence interval 3.36-1.72]., Conclusions: Nursing students in Spain tend to have a favourable attitude toward organ donation and transplantation although more than 20 % of those surveyed are not in favour., Tweetable Abstract: To maintain a high rate of organ donation for organ transplantation, it is necessary to improve the social awareness of future generations of nurses towards organ donation., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
Published: 2022
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46. Exploring Health Science Students' Notions on Organ Donation and Transplantation: A Multicenter Study.

Author: Martínez-Alarcón L, Ríos A, Gutiérrez PR, Santainés-Borredá E, Gómez FJ, Agras-Suarez MC, Iriarte J, Cañadas-De la Fuente GA, Herruzo R, Hurtado-Pardos B, Blanco G, Bárcena-Calvo C, Llorca FJ, Perelló-Campaner C, Asunsolo A, Arribas-Marin JM, Sánchez P, García-Mayor S, Fernández A, Soto-Ruíz MN, Teresa de Jesús M, Navalón JC, Lana A, Bertran-Noguer C, Fuentes L, Peña-Amaro MP, Hernández JR, Jiménez-Herrera MF, Virseda J, Blanco-Sánchez R, Yelamos J, Calvo-Sánchez MD, Bondía JA, Prado-Laguna MC, González-García A, Martínez-Rodríguez A, Bas-Sarmiento P, Faus-Gabandé F, Muiños-Álvarez A, Peyró-Gregori L, Hernández-Martínez H, López-Navas AI, Parrilla P, and Ramírez P
Subjects: Adult, Female, Humans, Male, Spain, Health Knowledge, Attitudes, Practice, Organ Transplantation psychology, Students, Medical psychology, Students, Nursing psychology, Tissue and Organ Procurement
Abstract: The knowledge acquired during university education about organ donation and transplantation (ODT) decisively influences the information future health professionals transmit. This is important in ODT where the participation of the general public is essential to obtain organs., Objective: To determine notions of Spanish medicine and nursing students on ODT and its relationship with attitude toward ODT., Methods and Design: and design. We conducted a sociologic, multicenter, and observational study. The population for our study consisted of medical and nursing students in Spanish universities. Our database was the Collaborative International Donor Project, stratified by geographic area and academic course. A validated questionnaire (PCID-DTO-RIOS) was self-administered and completed anonymously. Our sample consisted of 9598 medical and 10,566 nursing students (99% confidence interval; precision of ±1%), stratified by geographic area and year of study., Results: The completion rate for our study was 90%. Only 20% (n=3640) of students thought their notions on ODT were good; 41% (n=7531) thought their notions were normal; 36% (n=6550) thought their notions were scarce. Comparing groups, there were differences between those who believed that their notions on ODT were good (44% nursing vs 56% medical students; P < .000), and those who believed it scarce (54% nursing vs 46% medical students; P < .000). Notions on ODT were related with attitude toward the donation of one's own organs: those who considered their notions were good were more in favor then those who considered it scarce (88% vs 72%; P < .000)., Conclusion: Only 20% of Spanish medical and nursing students thought their notions on ODT were good. Having good knowledge is related to a favorable attitude towards ODT. Receiving specific information on the subject could improve their knowledge about ODT during their training., (Copyright © 2020 Elsevier Inc. All rights reserved.)
Published: 2020
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47. Organ Donation Related With Attitude Toward the Law of Presumed Consent: Spanish University Medical and Nursing Students Study.

Author: Martínez-Alarcón L, Ríos A, Gutiérrez PR, Gómez FJ, Santainés-Borredá E, Agras-Suarez MC, Iriarte J, Cañadas-De la Fuente GA, Herruzo R, Hurtado-Pardos B, Blanco G, Bárcena-Calvo C, Llorca FJ, Perelló-Campaner C, Asunsolo A, Arribas-Marin JM, Sánchez P, García-Mayor S, Fernández A, Soto-Ruíz MN, Teresa de Jesús M, Navalón JC, Lana A, Bertran-Noguer C, Fuentes L, Peña-Amaro MP, Hernández JR, Jiménez-Herrera MF, Virseda J, Blanco-Sánchez R, Yelamos J, Calvo-Sánchez MD, Bondía JA, Prado-Laguna MC, González-García A, Martínez-Rodríguez A, Bas-Sarmiento P, Faus-Gabandé F, Muiños-Álvarez A, Peyró-Gregori L, Hernández-Martínez H, López-Navas AI, Parrilla P, and Ramírez P
Subjects: Adult, Female, Humans, Male, Students, Medical, Students, Nursing, Surveys and Questionnaires, Universities, Health Knowledge, Attitudes, Practice, Organ Transplantation legislation & jurisprudence, Presumed Consent, Tissue and Organ Procurement legislation & jurisprudence
Abstract: Introduction: Information provided by health care professionals is crucial to create a climate of social opinion. This is important in organ donation and transplantation (ODT), where the participation of the general public is essential to obtain organs., Objective: To determine the attitude toward the Law of Presumed Consent (LPC) among Spanish university students and to analyze their relation with attitude toward ODT., Methods: and design. The type of study was a sociologic, multicenter, observational study. The population included medical and nursing students in Spanish universities. Database of Collaborative International Donor Project was used stratified by geographic area and academic course. A validated questionnaire (Collaborative International Donor Project, organ donation and transplantation questionnaire in Spanish [PCID-DTO-RIOS]) was self-administered and completed anonymously. A sample of 9598 medical and 10,566 nursing students was analyzed (99% confidence and precision of ±1%) and stratified by geographic area and year of study., Results: Completion rate was 90%. Regarding attitude toward LPC, 66% of the students were against the law, whereas 34% accepted it. Of the students surveyed, 9% considered the law as a gesture of solidarity, 25% as an effective way of not wasting organs, 48% as an abuse of power, and 18% as offenses against the family. Those students who were in favor of LPC also had a more favorable attitude toward ODT (86% vs 76%; P < .001). Comparing groups, nursing students were less in favor of LPC than medical students (32% vs 36%; P < .000)., Conclusion: Sixty-six percent of Spanish university medical and nursing students were against the LPC. The favorable attitude toward ODT is associated with considering the law as a gesture of solidarity or as an effective way of not wasting organs., (Copyright © 2020 Elsevier Inc. All rights reserved.)
Published: 2020
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48. Confident Perception of Primary Care Physicians Correlates to the Attitude Toward Donation and Organ Transplantation: A Multicenter Study of Medical And Nursing Spanish Students.

Author: Martínez-Alarcón L, Ríos A, Gutiérrez PR, Gómez FJ, Santainés-Borredá E, Agras-Suarez MC, Iriarte J, Cañadas-De la Fuente GA, Herruzo R, Hurtado-Pardos B, Blanco G, Bárcena-Calvo C, Llorca JF, Perelló-Campaner C, Asunsolo A, Arribas Marin JM, Sánchez P, Mayor-García S, Fernández A, Soto-Ruíz MN, de Jesús MT, Navalón JC, Lana A, Noguer CB, Fuentes L, Peña Amaro MP, Hernández JR, Jiménez-Herrera MF, Virseda J, Blanco-Sánchez R, Yelamos J, Calvo-Sánchez MD, Bondía JA, Prado Laguna MC, González-García A, Martínez-Rodríguez A, Bas-Sarmiento P, Faus-Gabandé F, Muiños-Álvarez A, Peyró-Gregori L, Hernández-Martínez H, López-Navas AI, Parrilla P, and Ramírez P
Subjects: Adult, Female, Humans, Male, Social Behavior, Spain, Students, Medical psychology, Students, Nursing psychology, Surveys and Questionnaires, Health Knowledge, Attitudes, Practice, Organ Transplantation psychology, Physicians, Primary Care, Tissue and Organ Procurement, Trust
Abstract: A primary care physician (PCP) not only accompanies the patient in the process of an illness, but throughout his or her life. The confidence we have in these health professionals is fundamental, and their favorable attitude toward organ donation and transplantation (ODT) has a significant influence on the population., Objective: To analyze trust in PCPs among Spanish medical and nursing students, the relationship with their attitude toward ODT, and the factors that condition it., Methods and Design: A sociologic, multicenter, and observational study., Population: medical and nursing students in Spanish universities., Database: Collaborative International Donor Project, stratified by geographic area and academic course. A validated questionnaire (PCID-DTO-RIOS) was self-administered and completed anonymously. A sample of 9598 medical and 10,566 nursing students (99% confidence and precision of ±1%), stratified by geographic area and year of study., Results: Completion rate: 90%. With respect to students' trust in their physician, 18% (n = 3267) of them totally trust (completely), 45% (n = 8101) trust enough, 30% (n = 5478) of them have not enough trust, and 7% not at all. Comparing groups, medical students totally trust more in PCPs than nursing students (55% vs 45%; P < .000), however, nursing students have less than enough trust in their PCP than medical students (53% vs 47%; P < .000). Students that totally trust in their PCP were more in favor toward ODT than students with not enough trust (83% vs 77%; P < .000)., Conclusion: Only 18% of Spanish medical and nursing students totally trust in their PCP. Attitude toward ODT is related to a higher level of trust in PCPs among these students., (Copyright © 2020 Elsevier Inc. All rights reserved.)
Published: 2020
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49. Nursing Students' Knowledge About Organ Donation and Transplantation: A Spanish Multicenter Study.

Author: Martínez-Alarcón L, Ríos A, Santainés-Borredá E, Agras-Suarez MC, Cañadas-De la Fuente GA, Hurtado-Pardos B, Bárcena-Calvo C, Perelló-Campaner C, Arribas-Marin JM, García-Mayor S, Soto-Ruíz MN, Navalón JC, Bertran-Noguer C, Peña-Amaro MP, Jiménez-Herrera MF, Blanco-Sánchez R, Calvo-Sánchez MD, Prado-Laguna MC, González-García A, Martínez-Rodríguez A, Bas-Sarmiento P, Faus-Gabandé F, Muiños-Alvarez A, Peyró-Gregori L, Helena HM, Saez A, Sánchez Á, López-Navas A, Ramírez P, and Parrilla P
Subjects: Adult, Female, Humans, Male, Spain, Surveys and Questionnaires, Young Adult, Health Knowledge, Attitudes, Practice, Organ Transplantation, Students, Nursing, Tissue and Organ Procurement
Abstract: Health care professionals and the information that they provide to the public on organ donation and transplantation (ODT) influence attitudes toward this option., Objective: The objective was to analyze the knowledge of university nursing students at Spanish universities toward ODT and the factors affecting it., Methods and Design: The methods and design included a multicenter, sociologic, and observational study including university nursing diploma students in a complete academic year., Participants: A sample of 10,566 students was selected stratified by geographic area and year., Instrument: A validated questionnaire of knowledge toward ODT (PCID-DTO RIOS), self-administered and completed anonymously., Results: Questionnaire completion rate: 85% (n = 9001). Only 18% (n = 1580) believed that their knowledge about ODT was good, 40% (n = 3578) believed that the information they had was normal, and 39% believed that their knowledge was sparse. Of the students, 96% believed that organ needs are not covered and 79% that they might need a transplant in the future. Only 39% (n = 3493) had attended a talk about ODT. Furthermore, 83% (n = 7435) believed that attending a talk would be interesting. The following variables were associated with having a more adequate knowledge: gender (62% men vs 57% women; P < .001); academic year (P < .001); knowing a donor (P < .001); knowing a transplant patient (P < .001); believing the possibility of needing a transplant oneself in the future (P < .001); attitude toward deceased donation (P < .001); and interest in receiving an informative talk about ODT (P < .001)., Conclusion: Only 18% of nursing students in Spain believed that their knowledge about ODT was adequate. These results must be considered for possible training plans for these future professionals., (Copyright © 2019 Elsevier Inc. All rights reserved.)
Published: 2019
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50. Student nurses at Spanish universities and their attitude toward xenotransplantation.

Author: Martínez-Alarcón L, Ríos A, Santainés-Borredá E, Agras-Suarez MC, Cañadas-De la Fuente GA, Hurtado-Pardos B, Bárcena-Calvo C, Alorda-Terrasa C, Morillo-Velázquez JM, Martí-García C, Redin-Areta MD, Alconero-Camarero AR, Jiménez-Navascues ML, Gutierrez-Izquierdo MI, Chamorro-Rebollo E, de Las Nieves Merchán-Felipe M, Barandiaran-Lasa M, Martín-Espinosa N, Gala-León FJ, Oter-Quintana C, Benbunan-Bentata B, Tirado-Altamirano F, Fernández-Vallhonrat MB, Ramírez-Rodrigo J, Maciá-Soler L, Saez A, Sánchez Á, López-Navas A, Ramírez P, and Parrilla P
Subjects: Female, Heterografts immunology, Humans, Living Donors, Male, Students, Medical, Tissue and Organ Procurement methods, Attitude, Organ Transplantation methods, Students, Nursing statistics & numerical data, Transplantation, Heterologous
Abstract: Introduction: Recent immunological and transgenic advances are a promising alternative using limited materials of human origin for transplantation. However, it is essential to achieve social acceptance of this therapy., Objective: To analyze the attitude of nursing students from Spanish universities toward organ xenotransplantation (XTx) and to determine the factors affecting their attitude., Materials and Methods: Type of study: A sociological, multicentre, and observational study., Study Population: Nursing students enrolled in Spain (n = 28,000)., Sample Size: A sample of 10 566 students estimating a proportion of 76% (99% confidence and precision of ±1%), stratified by geographical area and year of study. Instrument of measurement: A validated questionnaire (PCID-XenoTx-RIOS) was handed out to every student in a compulsory session. This survey was self-administered and self-completed voluntarily and anonymously by each student in a period of 5-10 min., Statistical Analysis: descriptive analysis, Student's t test, the chi-square test, and a logistic regression analysis., Results: A completion rate: 84% (n = 8913) was obtained. If the results of XTx were as good as in human donation, 74% (n = 6564) would be in favor and 22% (n = 1946) would have doubts. The following variables affected this attitude: age (P < 0.001); sex (P < 0.001); geographical location (P < 0.001); academic year of study (P < 0.001); attitude toward organ donation (P < 0.001); belief in the possibility of needing a transplant (P < 0.001); discussion of transplantation with one's family (P < 0.001) and friends (P < 0.001); and the opinion of one's partner (P < 0.001). The following variables persisted in the multivariate analysis: being a male (OR = 1.436; P < 0.001); geographical location (OR = 1.937; P < 0.001); an attitude in favor of donation (OR = 1.519; P < 0.001); belief in the possibility of needing a transplant (OR = 1.497; P = 0.036); and having spoken about the issue with family (OR = 1.351; P < 0.001) or friends (OR = 1.240; P = 0.001)., Conclusions: The attitude of nursing students toward organ XTx is favorable and is associated with factors of general knowledge about organ donation and transplantation and social interaction., (© 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
Published: 2019
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