Author: "T, Sato" / Journal: physical review letters - Searchworks@Jio Institute Digital Library Search Results

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202 results on '"T, Sato"'

1. Vortical Amplification of the Magnetic Field at an Inward Shock of Supernova Remnant Cassiopeia A

Author: F. Fraschetti, S. Katsuda, T. Sato, J. R. Jokipii, and J. Giacalone
Published: 2018
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2. Study of the K_{L}→π^{0}νν[over ¯] Decay at the J-PARC KOTO Experiment

Author: J K, Ahn, B, Beckford, M, Campbell, S H, Chen, J, Comfort, K, Dona, M S, Farrington, K, Hanai, N, Hara, H, Haraguchi, Y B, Hsiung, M, Hutcheson, T, Inagaki, M, Isoe, I, Kamiji, T, Kato, E J, Kim, J L, Kim, H M, Kim, T K, Komatsubara, K, Kotera, S K, Lee, J W, Lee, G Y, Lim, Q S, Lin, C, Lin, Y, Luo, T, Mari, T, Masuda, T, Matsumura, D, Mcfarland, N, McNeal, K, Miyazaki, R, Murayama, K, Nakagiri, H, Nanjo, H, Nishimiya, Y, Noichi, T, Nomura, T, Nunes, M, Ohsugi, H, Okuno, J C, Redeker, J, Sanchez, M, Sasaki, N, Sasao, T, Sato, K, Sato, Y, Sato, N, Shimizu, T, Shimogawa, T, Shinkawa, S, Shinohara, K, Shiomi, R, Shiraishi, S, Su, Y, Sugiyama, S, Suzuki, Y, Tajima, M, Taylor, M, Tecchio, M, Togawa, T, Toyoda, Y-C, Tung, Q H, Vuong, Y W, Wah, H, Watanabe, T, Yamanaka, H Y, Yoshida, and L, Zaidenberg
Abstract: The rare decay K_{L}→π^{0}νν[over ¯] was studied with the dataset taken at the J-PARC KOTO experiment in 2016, 2017, and 2018. With a single event sensitivity of (7.20±0.05_{stat}±0.66_{syst})×10^{-10}, three candidate events were observed in the signal region. After unveiling them, contaminations from K^{±} and scattered K_{L} decays were studied, and the total number of background events was estimated to be 1.22±0.26. We conclude that the number of observed events is statistically consistent with the background expectation. For this dataset, we set an upper limit of 4.9×10^{-9} on the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level.
Published: 2020

3. Magnetochiral Dichroism in a Collinear Antiferromagnet with No Magnetization

Author: T. Sato, Yusuke Tokunaga, Taka-hisa Arima, Nobuyuki Abe, and Shojiro Kimura
Subjects: Physics, Magnetic moment, Condensed matter physics, General Physics and Astronomy, Dichroism, 01 natural sciences, Magnetic field, Magnetization, Attenuation coefficient, 0103 physical sciences, Antiferromagnetism, Condensed Matter::Strongly Correlated Electrons, 010306 general physics, Absorption (electromagnetic radiation)
Abstract: We show the directional dichroism in a collinear antiferromagnet MnTiO_{3}. The dichroism between two distinctive antiferromagnetic states with opposite signs of staggered magnetic moments can be regarded as magnetochiral dichroism in the absence of external fields. Electric-field reversal of antiferromagnetic domain causes a change in the absorption intensity of unpolarized light around 2.15 eV. The difference in optical absorption between two antiferromagnetic states is reversed for the light propagating in the opposite direction. The absorption coefficient displays a hysteretic behavior for a cycle of sweeping the external electric or magnetic field.
Published: 2020

4. Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions

Author: A. Sen, V. S. Pantuev, M. Sano, M. Stepanov, Emily D. Richardson, X. He, J. Zimamyi, O. O. Omiwade, M. Harvey, S. Belikov, K. S. Joo, A. Rakotozafindrabe, J. Hamblen, K. Hasuko, Y. Aramaki, V. Peresedov, Y. Watanabe, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, R. A. Soltz, T. Sato, C. M. Camacho, R. S. Towell, Prashant Shukla, S. F. Pate, Dmitry Blau, Y. Fukao, A. Shevel, O. Jinnouchi, H. En'yo, J. Koster, M. Grosse Perdekamp, A. Hadj Henni, T. Hester, I. Younus, Ke. Nakamura, O. Drapier, H. Al-Bataineh, E. Vazquez-Zambrano, A. Nederlof, J. Park, H. Masui, A. K. Dubey, F. Matathias, H. Asano, Florian Bauer, M. Kasai, Y. Iwanaga, Joakim Nystrand, A. Vossen, T. L. Thomas, I. E. Yushmanov, Eun-Hee Kim, P. Constantin, Beomkyu Kim, Wei Xie, M. J. Leitch, A. A. Bickley, C. L. Woody, A. Veicht, A. Mwai, Eva Haslum, B. Lenzi, A. Soldatov, D. Isenhower, A. Toia, Tamas Novak, T. Moon, Kensuke Homma, H. Pei, L. Guo, Alexei Khanzadeev, Shinichi Masumoto, E. Stenlund, J. B. Choi, H. Sakata, Min-Hye Kim, R. Vértesi, S. H. Lee, Dipak Kumar Mishra, C. Baumann, M. S. Daugherity, C. P. Singh, T. Jones, Z. Rowan, Tomoya Tsuji, J. H. Bhom, T. V. Moukhanova, M. Mendoza, Peter Christiansen, R. Ichimiya, Atsushi Takahara, L. Mašek, D. Kawall, K. Tanida, Ryugo S. Hayano, I. J. Choi, B. Xia, S. Motschwiller, D. Ivanishchev, Dennis Perepelitsa, H. Themann, S. Chernichenko, V. Papavassiliou, Z. Ji, D. Winter, D. Yu Peressounko, Y. Riabov, Y. Onuki, C. E. Perezlara, Filip Krizek, N. A. Lewis, K. A. Drees, H. Lim, B. Bassalleck, S. Takagi, J. Bryslawskyj, Kenta Shigaki, M. Boer, M. Nguyen, V. I. Kochetkov, L. Aphecetche, S. Park, J. Murata, I. Nakagawa, Aaron Angerami, V-N. Tram, N. Grau, R. J. Petti, Sándor Lökös, K. N. Barish, J. M. Burward-Hoy, P. Tarján, S. N. White, J. G. Lajoie, Deepa Thomas, Jan Rak, R. Lacey, A. V. Kazantsev, Alexander Milov, Tae-Yeon Lee, Martin Purschke, C. A. Aidala, H. J. Kim, R. Granier de Cassagnac, A. Isupov, C. Suire, A. S. Nyanin, S. Zharko, S. Sano, S. Butsyk, Vladimir Samsonov, M. Konno, Gerd Joachim Kunde, A. Dion, Johannes Peter Wessels, I. Ravinovich, J. L. Charvet, S. Afanasiev, A. Ster, N. Feege, I. Otterlund, Christine Nattrass, A. Adare, J. Klatsky, C. P. Wong, M. Connors, W. A. Zajc, V. Baublis, A. Denisov, M. Leitgab, J. Sziklai, I. Shein, V. Cianciolo, Zvi Hirsh Citron, H. Ge, Rachid Nouicer, A. N. Zelenski, M. Proissl, Young-Ki Kim, T. Engelmore, Y. Tomita, Motoi Inaba, K. Nakano, M. J. Skoby, J. Newby, G. Roche, M. Mitrovski, Takafumi Niida, J. Huang, Hiroaki Ohnishi, K. B. Lee, Brian Cole, L. Tomášek, R. M. Wright, T. E. Miller, M. Kurosawa, Sergey Fokin, Z. Sun, A. Yu. Semenov, Bum-Hoon Lee, D. E. Mihalik, Senta Greene, K. Sedgwick, M. L. Brooks, S. Yokkaichi, W. C. Smith, B. M. Johnson, Alberto Baldisseri, Mihael Makek, K. Das, J. T. Mitchell, P. Mikeš, N. Hotvedt, R. Seidl, M. K. Dayananda, Prakhar Garg, B. Bannier, R. Belmont, M. Sarsour, A. T. Basye, M. K. Lee, B. Love, Marie Germain, C. Xu, E. P. Hartouni, Y. Miyachi, K. B. Kim, W. E. Sondheim, K. Boyle, P. A. Rukoyatkin, K. S. Sim, Kei Nagashima, V. Canoa Roman, P. Chung, M. I. Nagy, A. Morreale, Z. Fraenkel, Y. Nagata, M. Bai, D. Watanabe, M. D. Malik, Vladislav Manko, Saskia Mioduszewski, H. A. Gustafsson, M. Slunečka, E. Vznuzdaev, E. C. Aschenauer, S. S. Ryu, J. S. Kang, Junji Tojo, J. Gosset, Mate Csanad, A. Berdnikov, C. Zhang, J. P. Sullivan, A. Iordanova, A. Caringi, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, B. H. Kang, M. Naglis, Tomofumi Nagae, J. L. Nagle, S. Y. Fung, M. B. Deaton, Y. Tanaka, T. K. Shea, P. Rosnet, B. Meredith, V. Khachatryan, D. Hornback, B. Komkov, P. Castera, J. Imrek, V. E. Semenov, B. E. Norman, M. Holmes, P. Ružička, Raphael Noel Tieulent, W. S. Emam, A. Datta, M. Javani, B. Fadem, E. O'Brien, Y. Kwon, A. G. Litvinenko, A. Kozlov, R. Seto, A. Bagoly, Maya Hachiya Shimomura, R. S. Hollis, G. David, L. Patel, T. C. Awes, Kyoichiro Ozawa, T. Liška, K. O. Eyser, K. Fujiwara, Y. L. Yamaguchi, N. Kamihara, R. K. Choudhury, T. Murakami, Robert F. Hobbs, B. Lewis, Viktor Riabov, Jun Kikuchi, Tadaaki Isobe, B. Azmoun, Y. J. Mao, K. Haruna, T. W. Danley, J. D. Osborn, A. Taranenko, R. Yang, H. Hiejima, S. Taneja, Kazushi Miki, H. Al-Ta'Ani, A. Král, M. J. Kweon, H. Kanou, J. S. Chai, Petr Gallus, T. Majoros, L. Ding, D. Roach, K. M. Kijima, Taku Gunji, H. Gong, M. Nihashi, Tatsuya Chujo, D. Richford, Zhiying You, K. Imai, Shoji Nagamiya, John Hill, K. Hashimoto, T. Horaguchi, Brajesh K. Singh, C. Silvestre, R. Bennett, M. Kawashima, J. Seele, Yoshifumi Ueda, H. J. Moon, Norio Saito, Tsutomu Mibe, P. Liebing, M. A. L. Leite, D. Sharma, C. Vale, P. L. McGaughey, K. Karatsu, M. Patel, F. Kajihara, F. Staley, L. Baksay, V. Dzhordzhadze, I. Danchev, A. Garishvili, David D'Enterria, Gary Grim, J. H. Do, T. Tabaru, S. Batsouli, B. Kurgyis, Toru Sugitate, L. D. Isenhower, K. V. Dharmawardane, Susumu Sato, Y. I. Makdisi, M. Kaneta, Xingguo Li, B. S. Chang, Y. Le Bornec, Ahmed Al-Jamel, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Charles Maguire, J. L. Drachenberg, S. Leckey, M. Finger, S. Tarafdar, G. Mitsuka, Y. Hori, Anne Marie Sickles, J. Jin, J. E. Frantz, Jen-Chieh Peng, K. Gainey, I. V. Sourikova, N. Novitzky, Jongmin Lee, S. Choi, J. Klay, S. I. Morrow, H. Delagrange, Y. S. Kim, Y. H. Leung, Josh Moss, E. M. Takagui, S. P. Sorensen, Dylan Walker, R. P. Pisani, Debashish Pal, Y. Nakamiya, D. Lynch, S. Sawada, J. S. Bok, D. Kotchetkov, D. Reynolds, François Fleuret, H. W. Van Hecke, Y. Tsuchimoto, T. Ichihara, M. Oka, O. Chvala, H. Iinuma, M. C. McCain, S. Hasegawa, R. Tanabe, D. Layton, I. Garishvili, Akio Kiyomichi, J. Ying, Seong H. Kim, F. Wei, Inkyu Park, M. McCumber, J. Runchey, E. Kistenev, Xiong Wang, Z. Conesa del Valle, S. Zhou, Matthew G. Reuter, Herve Borel, B. Ujvari, Nikolay Tyurin, M. N. Wagner, Susanta K. Mohapatra, J. S. Kapustinsky, Takahiro Fusayasu, G. R. Young, M. Alfred, T. Hachiya, G. Baksay, Dong Jo Kim, A. P.T. Palounek, K. Okada, P. Lichtenwalner, A. Kiss, P. Kline, K. S. Lee, S. D. Rolnick, A. Enokizono, B. Espagnon, L. Zou, H. Harada, I. D. Ojha, Alexander Malakhov, Qiao Xu, N. Kurihara, ShinIchi Esumi, A. Glenn, A. Kravitz, J. M. Heuser, W. C. Chang, Z. Yasin, Henner Buesching, J. Sun, B. Forestier, M. T. Bjorndal, D. Silvermyr, S. Baumgart, L. S. Zolin, M. Ouchida, V. Babintsev, W. J. Park, Steve Edwards, M. Tomášek, N. Means, J. Asai, Atsushi Taketani, M. Wysocki, I. Tserruya, Masamichi Ishihara, A. Sukhanov, K. Kurita, Rushan Han, M. N. Hagiwara, Christopher Rosen, S. H. Lim, H. Pereira, P. D. Barnes, H. Yu, X. Gong, Y. Morino, Yu. Efremenko, A. Yanovich, V. Singh, V. L. Rykov, T. Dahms, A. Hodges, Marcus Hohlmann, G. S. Kyle, C. O. Kim, R. Pak, N. Willis, C. Y. Chi, M. J. Tannenbaum, James Alexander, Y. Ikeda, Shingo Sakai, S. P. Stoll, L. A. Linden Levy, J. G. Boissevain, Yasutada Akiba, H. Torii, P. V. Radzevich, Hirohiko Sato, S. K. Tuli, Minghui Liu, S. Bathe, Eunja Kim, E. J. Mannel, Agneta Oskarsson, S. Dairaku, D. Kincses, T. Rinn, Y. Berdnikov, R. Averbeck, Byung-Sik Hong, C. McKinney, M. Mishra, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, K. Hill, O. Zaudtke, Rui Wei, R. Akimoto, B. Sahlmueller, E. J. Desmond, A. Bazilevsky, Y. J. Kim, B. K. Schmoll, M. Virius, E. T. Atomssa, M. Heffner, A. Kim, Jaehyeok Yoo, D. Mukhopadhyay, E. Tennant, S. Rembeczki, M. Gonin, C. Pinkenburg, K. Dehmelt, J. D. Orjuela Koop, S. Kametani, C. H. Chen, Kenneth Francis Read, A. Manion, Y. Cobigo, Alexandre Lebedev, J. H. Kang, D. M. Lee, D. Bucher, J. S. Haggerty, S. R. Lee, A. Romana, S. Gadrat, Y. S. Lai, K. Kiriluk, J. Chiba, Alice Mignerey, X. Jiang, L. D'Orazio, S. Miyasaka, A. Franz, G. C. Mishra, Xiao-yan Li, Hiroyuki Sako, Y. Komatsu, Takao Sakaguchi, S. W. Nam, C. Klein-Boesing, A. D. Frawley, S. Huang, S. H. Aronson, W. Holzmann, O. Dietzsch, H. Valle, M. Chiu, Dipanwita Dutta, C. A. Ogilvie, Sung Keun Park, C. Gal, Julia Velkovska, S. Kelly, M. Rosati, N. N. Ajitanand, T. K. Hemmick, J. M. Durham, Yasuo Miake, Tamás Csörgő, Takahiro Nakamura, D. McGlinchey, Susumu Oda, A. A. Vinogradov, Henrik Tydesjö, L. Kochenda, M. Issah, T. Shohjoh, A. Durum, T. Kawagishi, Jiangyong Jia, D. S. Brown, K. Yamaura, S. Wolin, D. Kleinjan, S. Campbell, Hongfang Liu, D. E. Fields, B. V. Jacak, A. K. Purwar, R. Armendariz, J. Hanks, Byoungchoo Park, N. Apadula, C. Oakley, A. Drees, J. Kubart, K. Sakashita, D. Kotov, J. Egdemir, D. S. Jumper, F. Gastineau, Jason Kamin, Y. Goto, S. S.E. Rosendahl, K. Watanabe, G. Bunce, K. Shoji, A. Churyn, D. Jouan, W. Peng, P. W. Stankus, C. R. Cleven, C. Haegemann, Y. Inoue, P. J. Kroon, T. Kempel, Dong-Hun Kim, S. Kaneti, M. G. Hur, Steven E. Skutnik, M. Togawa, T. O. S. Haseler, H. Qu, Hideki Hamagaki, W. Fan, K. Aoki, M. Vargyas, T. Todoroki, K. I. Hahn, A. Deshpande, Helsinki Institute of Physics, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PHENIX, Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de physique subatomique et des technologies associées ( SUBATECH ), IMT Atlantique Bretagne-Pays de la Loire ( IMT Atlantique ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Nantes ( UN ), Laboratoire Leprince-Ringuet ( LLR ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -École polytechnique ( X ) -Centre National de la Recherche Scientifique ( CNRS ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Institut de Physique Nucléaire d'Orsay ( IPNO ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique de Clermont ( LPC ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Clermont Auvergne ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Institut de Physique Nucléaire de Lyon ( IPNL ), Université Claude Bernard Lyon 1 ( UCBL ), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: Photon, heavy ion: scattering, 62.4 GeV-cms, Au+Au collisions, General Physics and Astronomy, transverse momentum dependence, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 39 GeV-cms/nucleon62.4 GeV-cms, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment, 39 GeV-cms/nucleon, Physics, Range (particle radiation), RHIC, Large Hadron Collider, Multiplicative function, PHENIX, nucleus nucleus: colliding beams, PRIRODNE ZNANOSTI. Fizika, photon: direct production, CERN LHC Coll, photon: yield, COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS, quark-gluon plasma, beam energy scan, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 114 Physical sciences, energy dependence, Nuclear physics, direct photons, energy: scaling, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], DILEPTONS, Au+Au collisions, beam energy scan, quark-gluon plasma, direct photons, PHENIX, RHIC, 0103 physical sciences, 010306 general physics, impact parameter: dependence, Scaling, Nuclear Physics, gold, NATURAL SCIENCES. Physics, Yield (chemistry), High Energy Physics::Experiment, Relativistic Heavy Ion Collider, Beam (structure), experimental results
Abstract: The PHENIX collaboration presents first measurements of low-momentum ($0.4$1\,GeV/$c$) direct-photon yield $dN_{\gamma}^{\rm dir}/d\eta$ is a smooth function of $dN_{\rm ch}/d\eta$ and can be well described as proportional to $(dN_{\rm ch}/d\eta)^\alpha$ with $\alpha{\approx}1.25$. This scaling behavior holds for a wide range of beam energies at the Relativistic Heavy Ion Collider and the Large Hadron Collider, for centrality selected samples, as well as for different, $A$$+$$A$ collision systems. At a given beam energy the scaling also holds for high $p_T$ ($>5$\,GeV/$c$) but when results from different collision energies are compared, an additional $\sqrt{s_{_{NN}}}$-dependent multiplicative factor is needed to describe the integrated-direct-photon yield., Comment: 673 authors from 82 institutions, 10 pages, 4 figures. v2 is version accepted for publication in Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
Published: 2019

5. Search for K_{L}→π^{0}νν[over ¯] and K_{L}→π^{0}X^{0} Decays at the J-PARC KOTO Experiment

Author: J K, Ahn, B, Beckford, J, Beechert, K, Bryant, M, Campbell, S H, Chen, J, Comfort, K, Dona, N, Hara, H, Haraguchi, Y B, Hsiung, M, Hutcheson, T, Inagaki, I, Kamiji, N, Kawasaki, E J, Kim, J L, Kim, Y J, Kim, J W, Ko, T K, Komatsubara, K, Kotera, A S, Kurilin, J W, Lee, G Y, Lim, C, Lin, Q, Lin, Y, Luo, J, Ma, Y, Maeda, T, Mari, T, Masuda, T, Matsumura, D, Mcfarland, N, McNeal, J, Micallef, K, Miyazaki, R, Murayama, D, Naito, K, Nakagiri, H, Nanjo, H, Nishimiya, T, Nomura, M, Ohsugi, H, Okuno, M, Sasaki, N, Sasao, K, Sato, T, Sato, Y, Sato, H, Schamis, S, Seki, N, Shimizu, T, Shimogawa, T, Shinkawa, S, Shinohara, K, Shiomi, S, Su, Y, Sugiyama, S, Suzuki, Y, Tajima, M, Taylor, M, Tecchio, M, Togawa, Y C, Tung, Y W, Wah, H, Watanabe, J K, Woo, T, Yamanaka, and H Y, Yoshida
Abstract: A search for the rare decay K_{L}→π^{0}νν[over ¯] was performed. With the data collected in 2015, corresponding to 2.2×10^{19} protons on target, a single event sensitivity of (1.30±0.01_{stat}±0.14_{syst})×10^{-9} was achieved and no candidate events were observed. We set an upper limit of 3.0×10^{-9} for the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level (C.L.), which improved the previous limit by almost an order of magnitude. An upper limit for K_{L}→π^{0}X^{0} was also set as 2.4×10^{-9} at the 90% C.L., where X^{0} is an invisible boson with a mass of 135 MeV/c^{2}.
Published: 2018

6. Vortical Amplification of the Magnetic Field at an Inward Shock of Supernova Remnant Cassiopeia A

Author: J. R. Jokipii, Joe Giacalone, T. Sato, Federico Fraschetti, and Satoru Katsuda
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Smithsonian institution, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, General Physics and Astronomy, Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, 01 natural sciences, Physics - Plasma Physics, 010305 fluids & plasmas, Magnetic field, Shock (mechanics), Plasma Physics (physics.plasm-ph), Cassiopeia A, Astrophysics - Solar and Stellar Astrophysics, Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, Astrophysics - High Energy Astrophysical Phenomena, Supernova remnant, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics::Galaxy Astrophysics
Abstract: We present an interpretation of the time variability of the $X$-ray flux recently reported from a multi-epoch campaign of $15$ years observations of the supernova remnant Cassiopeia A by {\it Chandra}. We show for the first time quantitatively that the $[4.2-6]$ keV non-thermal flux increase up to $50\%$ traces the growth of the magnetic field due to vortical amplification mechanism at a reflection inward shock colliding with inner overdensities. The fast synchrotron cooling as compared with shock-acceleration time scale qualitatively supports the flux decrease., 5 pages, 2 figures, PRL in press
Published: 2018

7. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions atsNN=200 GeV

Author: Alexander Milov, R. A. Soltz, T. Engelmore, P. Sett, Frank Ellinghaus, Z. Rowan, Y. Watanabe, M. Mendoza, S. N. White, M. Grosse Perdekamp, F. Giordano, Deepa Thomas, E. R. Kinney, D. P. Morrison, M. E. Connors, N. S. Bandara, S. K. Park, J. E. Frantz, S. Bathe, Agneta Oskarsson, Zvi Hirsh Citron, M. Beaumier, Tatsuya Chujo, Vladimir Samsonov, Christine Nattrass, H. Ge, K. Nakano, K. S. Joo, M. Tomášek, G. S. Kyle, Y. Berdnikov, S. H. Lee, C. McKinney, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, T. Todoroki, A. V. Kazantsev, W. E. Sondheim, Alexei Khanzadeev, Vaclav Vrba, Klaus Johannes Reygers, Takafumi Niida, J. Huang, H. A. Gustafsson, H. W. Yu, Alexandre Lebedev, K. Boyle, Y. Nakamiya, D. Lynch, L. Tomášek, E. Stenlund, C. Baumann, J. B. Choi, Sung Keun Park, T. L. Thomas, Rui Wei, D. M. Lee, X. Jiang, S. Esumi, R. Ichimiya, Hiroyuki Sako, B. Komkov, S. W. Nam, P. Ružička, Dipak Kumar Mishra, T. Jones, Peter Christiansen, M. K. Dayananda, G. Baksay, N. N. Ajitanand, S. Hasegawa, N. Feege, Bhartendu K. Singh, B. Azmoun, Y. J. Mao, A. Král, P. Liebing, Tsutomu Mibe, J. L. Nagle, D. Winter, Y. Fukao, Prakhar Garg, Jen-Chieh Peng, Viktor Riabov, J. G. Rubin, M. A. L. Leite, S. H. Lim, R. Belmont, J. S. Kapustinsky, A. Kiss, V. Babintsev, D. Yu Peressounko, Dennis Perepelitsa, J. Newby, J. H. Bhom, G. Roche, B. Bannier, K. S. Sim, Ryugo S. Hayano, Henner Buesching, B. Sahlmueller, Y. J. Kim, M. Oka, T. V. Moukhanova, Dmitry Blau, G. D. N. Perera, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, D. Reynolds, Serpil Yalcin, F. Matathias, P. Kline, K. S. Lee, Atsushi Taketani, E. J. Desmond, M. Chiu, Ajit Kumar Mohanty, Takahiro Nakamura, V. S. Pantuev, D. McGlinchey, Susumu Oda, I. Nakagawa, Aaron Angerami, Steve Edwards, Inkyu Park, B. Meredith, Shunji Nishimura, K. A. Drees, Marcus Hohlmann, D. Hornback, S. Dairaku, Xiong Wang, Z. Conesa del Valle, E. Vazquez-Zambrano, T. A. Shibata, C. L. Silva, T. Sato, R. Yang, S. Taneja, Y. Tanaka, J. Hamblen, A. Durum, P. Montuenga, W. A. Zajc, L. A. Linden Levy, L. Xue, Kensuke Homma, E. Richardson, E. Mannel, John Hill, A. Taranenko, Y. Riabov, K. Imai, T. Murakami, Kenta Shigaki, S. Sato, O. Dietzsch, H. Valle, C. A. Ogilvie, T. K. Hemmick, B. J. Ramson, J. M. Durham, Yasuo Miake, Martin Purschke, V. Baublis, C. A. Aidala, B. Bassalleck, J. Rak, T. Hester, Kazushi Miki, D. Sharma, M. Kasai, Y. Tsuchimoto, M. Wysocki, T. Novák, I. Tserruya, Dipanwita Dutta, A. Denisov, M. Jezghani, Yu. Efremenko, V. Cianciolo, K. Yamaura, A. Meles, Y. Iwanaga, M. Konno, Toru Sugitate, J. Klatsky, K. DeBlasio, P. L. McGaughey, K. Fujiwara, K. Karatsu, Pawan Kumar Netrakanti, M. Nguyen, A. S. Nyanin, V. Singh, H. J. Moon, C. Gal, L. Baksay, Julia Velkovska, L. Kochenda, M. Issah, M. Virius, T. Koblesky, R. Pinson, D. Isenhower, A. Toia, A. Morreale, Rachid Nouicer, I. E. Yushmanov, T. Moon, Z. Fraenkel, M. Stepanov, Anne Marie Sickles, Sergey Fokin, H. Pei, Hongfang Liu, D. E. Fields, A. N. Zelenski, M. Proissl, V. Khachatryan, J. T. Mitchell, K. N. Barish, R. K. Choudhury, K. Okada, B. Schaefer, S. Tarafdar, B. V. Jacak, Senta Greene, A. Glenn, J. D. Orjuela Koop, K. Das, M. Rosati, N. Hotvedt, S. Sawada, R. Seidl, Eunja Kim, J. S. Bok, Vladislav Manko, Tamás Csörgő, J. Ying, M. McCumber, T. Kempel, C. L. Woody, A. Berdnikov, M. Naglis, H. Nakagomi, François Fleuret, T. Hoshino, A. Franz, M. Slunečka, A. T. Basye, S. Beckman, C. H. Chen, Gary Grim, Eva Haslum, M. J. Leitch, S. Belikov, T. Ichihara, K. V. Dharmawardane, S. Mizuno, B. Fadem, N. Apadula, A. Caringi, C. Oakley, A. Drees, A. Manion, J. Hanks, J. H. Kang, I. Ravinovich, Jiangyong Jia, E. O'Brien, D. J. Kim, Petr Gallus, G. R. Young, C. Vale, J. S. Haggerty, K. Sakashita, A. Timilsina, Charles Maguire, Takahiro Fusayasu, N. Grau, R. S. Towell, Prashant Shukla, M. Kurosawa, E. T. Atomssa, H. W. Van Hecke, D. Kotov, M. Bai, S. F. Pate, D. S. Jumper, D. Kleinjan, S. Campbell, E. Kistenev, Y. J. Kwon, Jason Kamin, I. V. Sourikova, S. P. Stoll, Kei Nagashima, A. Enokizono, D. Silvermyr, Ke. Nakamura, O. Drapier, P. Lichtenwalner, Y. Onuki, Y. Goto, H. Al-Bataineh, Motoi Inaba, J. Sun, Alice Mignerey, S. S.E. Rosendahl, G. Bunce, L. Zou, J. A. Key, R. M. Wright, M. Sarsour, Mate Csanad, W. J. Park, A. Iordanova, Christopher Rosen, R. Kitamura, G. W. Kim, P. Chung, N. Saito, D. Jouan, L. D'Orazio, Masamichi Ishihara, S. Miyasaka, D. Ivanishchev, J. H. Do, A. Yanovich, V. Papavassiliou, Y. S. Lai, S. Y. Han, J. D. Osborn, Inseok Yoon, Raphael Noel Tieulent, Minghui Liu, S. Nagamiya, M. Ouchida, C. L. Towell, Y. Ikeda, R. Lacey, N. Means, Zhiying You, J. Jin, Takao Sakaguchi, S. Sano, T. Rinn, M. Nihashi, A. Sen, M. Togawa, R. Bennett, M. Kawashima, M. Heffner, Kenneth Francis Read, M. Finger, E. M. Takagui, R. Granier de Cassagnac, A. Adare, A. Datta, H. Asano, T. O. S. Haseler, Jong-Min Park, M. Gonin, C. Pinkenburg, N. Novitzky, Jongmin Lee, Taku Gunji, H. Gong, J. Seele, D. Kawall, M. S. Daugherity, A. D. Frawley, H. Qu, P. B. Diss, K. Dehmelt, R. P. Pisani, K. Tanida, H. Themann, C. P. Singh, M. Patel, F. Kajihara, B. M. Johnson, J. Murata, Hideki Hamagaki, K. Aoki, Gerd Joachim Kunde, G. David, I. Shein, A. S. White, K. Sedgwick, S. Butsyk, S. Huang, Mihael Makek, A. Deshpande, R. J. Petti, K. I. Hahn, I. Younus, S. Zhou, T. Dahms, W. Holzmann, S. D. Rolnick, H. F. Hamilton, Maya Hachiya Shimomura, R. S. Hollis, J. Sziklai, K. Watanabe, Y. I. Makdisi, K. Shoji, Brian Cole, I. Garishvili, M. L. Brooks, S. Yokkaichi, F. Wei, M. J. Tannenbaum, H. Torii, B. K. Schmoll, A. Kim, Jaehyeok Yoo, S. Rembeczki, T. Sumita, C. Y. Chi, B. Love, Yasutada Akiba, Y. L. Yamaguchi, A. Sexton, R. Seto, T. W. Danley, I. Danchev, X. He, Y. Aramaki, Robert Vertesi, H. En'yo, J. Koster, H. Masui, A. Veicht, A. Mwai, S. Kanda, T. Horaguchi, P. W. Stankus, A. Sukhanov, K. Kurita, H. Pereira, Y. Morino, C. O. Kim, R. Pak, S. P. Sorensen, O. Chvala, C. Silvestre, J. G. Lajoie, M. Alfred, T. Hachiya, Marisilvia Donadelli, V. Bumazhnov, Min Soo Kim, R. Tanabe, Rushan Han, S. Lee, Jennifer E. Perry, A. Kravitz, K. B. Lee, D. Roach, K. M. Kijima, B. Kimelman, K. Hashimoto, Xingguo Li, A. Dion, Johannes Peter Wessels, J. Bryslawskyj, Beomkyu Kim, M. Snowball, I. J. Choi, B. Xia, M. I. Nagy, D. Watanabe, M. D. Malik, and E. Vznuzdaev
Subjects: Physics, Jet (fluid), Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, 01 natural sciences, Spectral line, Nuclear physics, Deuterium, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), PHENIX detector, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Energy (signal processing)
Abstract: Jet production rates are measured in p+p and d+Au collisions at sqrt[s_{NN}]=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R=0.3 anti-k_{t} algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multiwire proportional chambers, and the jet transverse momentum (p_{T}) spectra are corrected for the detector response. Spectra are reported for jets with 12
Published: 2016

8. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at √[s(NN)]=200 GeV

Author: A, Adare, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, M, Alfred, A, Angerami, K, Aoki, N, Apadula, Y, Aramaki, H, Asano, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, N S, Bandara, B, Bannier, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, M, Beaumier, S, Beckman, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, J H, Bhom, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, J, Bryslawskyj, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa Del Valle, M, Connors, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, T W, Danley, K, Das, A, Datta, M S, Daugherity, G, David, M K, Dayananda, K, DeBlasio, K, Dehmelt, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, P B, Diss, J H, Do, M, Donadelli, L, D'Orazio, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, N, Feege, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, C, Gal, P, Gallus, P, Garg, I, Garishvili, H, Ge, F, Giordano, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, G, Grim, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, T, Hachiya, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, H F, Hamilton, R, Han, S Y, Han, J, Hanks, S, Hasegawa, T O S, Haseler, K, Hashimoto, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, R S, Hollis, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, T, Hoshino, N, Hotvedt, J, Huang, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, M, Inaba, A, Iordanova, D, Isenhower, M, Ishihara, M, Issah, D, Ivanishchev, Y, Iwanaga, B V, Jacak, M, Jezghani, J, Jia, X, Jiang, J, Jin, B M, Johnson, T, Jones, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, J, Kamin, S, Kanda, J H, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, J A, Key, V, Khachatryan, A, Khanzadeev, K M, Kijima, J, Kikuchi, A, Kim, B I, Kim, C, Kim, D J, Kim, E-J, Kim, G W, Kim, M, Kim, Y-J, Kim, B, Kimelman, E, Kinney, Á, Kiss, E, Kistenev, R, Kitamura, J, Klatsky, D, Kleinjan, P, Kline, T, Koblesky, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, S, Lee, S H, Lee, M J, Leitch, M A L, Leite, X, Li, P, Lichtenwalner, P, Liebing, S H, Lim, L A, Linden Levy, T, Liška, H, Liu, M X, Liu, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, M, Makek, M D, Malik, A, Manion, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, D, McGlinchey, C, McKinney, N, Means, A, Meles, M, Mendoza, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, D K, Mishra, J T, Mitchell, S, Miyasaka, S, Mizuno, A K, Mohanty, P, Montuenga, H J, Moon, T, Moon, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, T, Murakami, J, Murata, A, Mwai, S, Nagamiya, K, Nagashima, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, H, Nakagomi, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, S, Nam, C, Nattrass, P K, Netrakanti, J, Newby, M, Nguyen, M, Nihashi, T, Niida, S, Nishimura, R, Nouicer, T, Novák, N, Novitzky, A S, Nyanin, C, Oakley, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, J D, Orjuela Koop, J D, Osborn, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J S, Park, S, Park, S K, Park, W J, Park, S F, Pate, M, Patel, H, Pei, J-C, Peng, H, Pereira, D V, Perepelitsa, G D N, Perera, D Yu, Peressounko, J, Perry, R, Petti, C, Pinkenburg, R, Pinson, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, B J, Ramson, I, Ravinovich, K F, Read, S, Rembeczki, K, Reygers, D, Reynolds, V, Riabov, Y, Riabov, E, Richardson, T, Rinn, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, Z, Rowan, J G, Rubin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, H, Sako, V, Samsonov, S, Sano, M, Sarsour, S, Sato, T, Sato, S, Sawada, B, Schaefer, B K, Schmoll, K, Sedgwick, J, Seele, R, Seidl, A, Sen, R, Seto, P, Sett, A, Sexton, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, M, Snowball, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, M, Stepanov, S P, Stoll, T, Sugitate, A, Sukhanov, T, Sumita, J, Sun, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, H, Themann, D, Thomas, T L, Thomas, R, Tieulent, A, Timilsina, T, Todoroki, M, Togawa, A, Toia, L, Tomášek, M, Tomášek, H, Torii, C L, Towell, R, Towell, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, Y S, Watanabe, F, Wei, R, Wei, J, Wessels, A S, White, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, B, Xia, L, Xue, S, Yalcin, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, J H, Yoo, I, Yoon, Z, You, G R, Young, I, Younus, H, Yu, I E, Yushmanov, W A, Zajc, A, Zelenski, S, Zhou, and L, Zou
Abstract: Jet production rates are measured in p+p and d+Au collisions at sqrt[s_{NN}]=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R=0.3 anti-k_{t} algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multiwire proportional chambers, and the jet transverse momentum (p_{T}) spectra are corrected for the detector response. Spectra are reported for jets with 12p_{T}50 GeV/c, within a pseudorapidity acceptance of |η|0.3. The nuclear-modification factor (R_{dAu}) values for 0%-100% d+Au events are found to be consistent with unity, constraining the role of initial state effects on jet production. However, the centrality-selected R_{dAu} values and central-to-peripheral ratios (R_{CP}) show large, p_{T}-dependent deviations from unity, challenging the conventional models that relate hard-process rates and soft-particle production in collisions involving nuclei.
Published: 2015

9. Measurements of Elliptic and Triangular Flow in High-MultiplicityHe3+AuCollisions atsNN=200 GeV

Author: H. Themann, Y. Nagata, B. Azmoun, A. Král, M. J. Kweon, Dmitry Blau, V. I. Kochetkov, M. Bai, E. C. Aschenauer, E. J. Desmond, R. S. Towell, J. Murata, I. Garishvili, Akio Kiyomichi, F. Wei, M. Togawa, E. Vazquez-Zambrano, M. Tomášek, J. D. Osborn, Gerd Joachim Kunde, Maya Hachiya Shimomura, Inseok Yoon, Zhiying You, J. Park, R. S. Hollis, R. Bennett, P. Tarján, M. Kawashima, G. S. Kyle, A. Rakotozafindrabe, F. Matathias, Kensuke Homma, N. Kurihara, I. Shein, M. Oka, M. Finger, A. Sen, V. S. Pantuev, P. Kline, K. S. Lee, M. Ouchida, James Alexander, A. V. Kazantsev, E. Richardson, P. Constantin, M. Kasai, N. Means, Sung Keun Park, T. Sumita, C. Y. Chi, Charles Maguire, Y. I. Makdisi, J. Hamblen, J. Asai, T. Sodre, K. Sedgwick, Y. Tsuchimoto, Y. Iwanaga, N. N. Ajitanand, K. S. Sim, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, C. Harper, Mihael Makek, Jongmin Lee, S. Dairaku, S. Hasegawa, I. E. Yushmanov, O. Zaudtke, V. Dzhordzhadze, S. Chernichenko, B. Bassalleck, M. Virius, E. T. Atomssa, P. Liebing, J. D. Orjuela Koop, C. H. Chen, T. Tabaru, A. Manion, K. Okada, N. S. Bandara, S. Butsyk, G. D. N. Perera, S. P. Sorensen, A. Deshpande, Takahiro Nakamura, Shingo Sakai, A. Hadj Henni, D. McGlinchey, Eun-Hee Kim, Susumu Oda, H. En'yo, M. J. Leitch, Junji Tojo, Y. Kwon, M. Konno, L. Tomášek, P. Mikeš, Dylan Walker, M. S. Daugherity, C. P. Singh, M. Beaumier, Philippe Rosnet, Alexandre Lebedev, Kiyoshi Tanida, B. M. Johnson, A. Yu. Semenov, J. Gosset, M. Sarsour, Mate Csanad, A. Iordanova, O. Chvala, A. Durum, J. Bryslawskyj, R. J. Petti, A. Taketani, V. L. Rykov, T. Dahms, Z. Yasin, Henner Buesching, Steve Edwards, K. S. Joo, D. M. Lee, Vladimir Samsonov, Christine Nattrass, T. Todoroki, A. Isupov, C. Suire, Seong H. Kim, S. Y. Han, Senta Greene, Y. Watanabe, J. Sziklai, Catherine Micaela Silvestre, K. Yamaura, A. Meles, C. L. Woody, A. Berdnikov, L. Patel, Beomkyu Kim, Wei Xie, M. Stepanov, L. Guo, Alexei Khanzadeev, J. G. Lajoie, E. Stenlund, R. Yang, H. Hiejima, S. Taneja, Gary Grim, M. Alfred, T. Hachiya, A. Caringi, Y. Nakamiya, D. Lynch, Brian Cole, K. Kiriluk, E. Kistenev, M. K. Lee, X. Gong, I. Younus, M. Kurosawa, T. C. Awes, Kyoichiro Ozawa, T. Liška, C. Baumann, J. B. Choi, H. Sakata, M. Nihashi, A. T. Basye, K. V. Dharmawardane, Petr Gallus, Jennifer E. Perry, D. Danley, Hongfang Liu, J. S. Kang, Jun Kikuchi, Marcus Hohlmann, S. Tarafdar, A. Vossen, K. Imai, Saskia Mioduszewski, G. Baksay, Hai Yu, M. Snowball, A. Kravitz, Dipak Kumar Mishra, David D'Enterria, Tadaaki Isobe, Tamas Ferenc Csorgo, B. E. Norman, J. L. Nagle, B. Fadem, E. O'Brien, D. John, P. Castera, K. R. Andrews, D. E. Fields, Ajit Kumar Mohanty, A. Soldatov, N. Novitzky, T. A. Shibata, C. L. Silva, B. V. Jacak, R. P. Pisani, M. Savastio, L. A. Linden Levy, I. V. Sourikova, H. Iinuma, P. Lichtenwalner, M. J. Tannenbaum, T. Sato, S. Esumi, I. J. Choi, T. L. Thomas, X. Jiang, Hiroaki Ohnishi, K. B. Lee, R. A. Soltz, H. Borel, A. P.T. Palounek, J. H. Bhom, M. McCumber, R. Ichimiya, Tae-Yeon Lee, M. Naglis, H. Nakagomi, T. Hoshino, J. Jin, K. O. Eyser, A. K. Purwar, Eva Haslum, B. Lenzi, Martin Purschke, B. Sahlmueller, Y. J. Kim, K. Fujiwara, Y. Onuki, Ryugo S. Hayano, Y. Riabov, J. Hanks, P. L. McGaughey, B. Xia, S. Afanasiev, Jan Rak, D. Isenhower, A. Toia, O. Dietzsch, H. Valle, T. Moon, Y. L. Yamaguchi, Dipanwita Dutta, C. Gal, L. Aphecetche, M. N. Wagner, Y. Fukao, A. Shevel, Pawan Kumar Netrakanti, D. Broxmeyer, T. Hester, Masayasu Ishihara, J. H. Do, M. Chiu, S. Beckman, C. L. Towell, J. T. Mitchell, H. Torii, B. K. Schmoll, A. Ster, N. Feege, Y. Miyachi, D. Roach, K. M. Kijima, R. Lacey, R. Granier de Cassagnac, A. Morreale, Kenta Shigaki, L. Mašek, M. Nguyen, A. S. Nyanin, A. Adare, B. Kimelman, M. Grosse Perdekamp, S. Mizuno, S. Yokkaichi, Julia Velkovska, M. Rosati, N. Hotvedt, R. Seidl, H. A. Gustafsson, C. Zhang, T. V. Moukhanova, Y. Ikeda, Z. Fraenkel, V. Khachatryan, Hiroyuki Sako, F. Giordano, M. E. Connors, Atsushi Takahara, S. K. Park, K. Hashimoto, Vladislav Manko, F. Staley, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Rachid Nouicer, H. W. Van Hecke, A. Dion, L. Zou, M. Slunečka, A. N. Zelenski, M. Proissl, P. Ružička, J. G. Boissevain, V-N. Tram, A. Kim, Jaehyeok Yoo, D. Mukhopadhyay, R. K. Choudhury, N. Grau, Shunji Nishimura, T. Rinn, Masashi Kaneta, A. A. Vinogradov, Xingguo Li, S. W. Nam, R. Vértesi, D. Hornback, E. Tennant, S. Rembeczki, Motoi Inaba, K. A. Drees, S. Belikov, Min Soo Kim, J. L. Charvet, S. Bathe, R. Akimoto, Minghui Liu, M. Gonin, D. Sharma, R. M. Wright, Johannes Peter Wessels, R. Tanabe, D. Layton, B. Komkov, Viktor Riabov, Agneta Oskarsson, M. Heffner, Jiangyong Jia, Y. Goto, H. Harada, C. Pinkenburg, Serpil Yalcin, A. Taranenko, T. Jones, Peter Christiansen, Kazushi Miki, Kenneth Francis Read, Y. Berdnikov, K. Dehmelt, S. H. Lee, Y. Akiba, K. Karatsu, J. Ben-Benjamin, T. E. Miller, T. Horaguchi, Brajesh K. Singh, J. Sun, D. Winter, D. Yu Peressounko, C. Vale, C. McKinney, W. C. Chang, A. Sukhanov, K. Kurita, M. Mishra, S. Nagamiya, G. Roche, B. S. Chang, Y. J. Mao, S. Kametani, Y. Hori, Anne Marie Sickles, Aaron Angerami, H. Pereira, Dennis Perepelitsa, J. Klatsky, A. Timilsina, Christine Angela Aidala, Tsutomu Mibe, M. I. Nagy, Vaclav Vrba, Klaus Johannes Reygers, J. Klay, M. A. L. Leite, Kei Nagashima, Rui Wei, B. Schaefer, A. Enokizono, H. Pei, Y. Morino, J. H. Kang, J. S. Haggerty, S. R. Lee, A. Romana, G. W. Kim, J. S. Bok, P. Chung, K. Utsunomiya, D. Watanabe, H. H. Shim, D. Kleinjan, S. Campbell, Rushan Han, S. H. Lim, J. Imrek, D. Kotchetkov, Raphael Noel Tieulent, W. A. Zajc, Jason Newby, Eric Appelt, C. O. Kim, M. D. Malik, L. Xue, J. Chiba, E. Vznuzdaev, Alice Mignerey, Susumu Sato, W. S. Emam, A. Datta, K. Das, J. E. Frantz, H. Asano, R. Pak, H. Kanou, R. Belmont, J. S. Kapustinsky, Jong-Min Park, M. B. Deaton, E. P. Hartouni, G. R. Young, V. Baublis, A. Denisov, Yuki Watanabe, V. Babintsev, Su Houng Lee, Y. S. Lai, V. Cianciolo, Taku Gunji, H. Gong, J. Seele, M. Patel, Y. Tanaka, L. D'Orazio, S. Miyasaka, Y. Tomita, E. Mannel, F. Kajihara, Nagahiro Saito, T. Novák, H. Delagrange, Sergey Fokin, H. J. Moon, L. Baksay, S. Zhou, A. Baldisseri, S. D. Rolnick, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, A. S. White, S. Huang, S. H. Aronson, W. Holzmann, H. F. Hamilton, P. Sett, M. Mitrovski, Takafumi Niida, J. Huang, J. S. Yoo, M. K. Dayananda, Prakhar Garg, B. Bannier, T. Murakami, Robert F. Hobbs, Yi Gu, E. M. Takagui, Debashish Pal, S. Sawada, J. Ying, A. Franz, C. M. Camacho, Prashant Shukla, S. F. Pate, Ke. Nakamura, H. Al-Bataineh, J. A. Key, Alexander Milov, I. Nakagawa, Young-Ki Kim, T. Engelmore, S. Motschwiller, O. Drapier, Frank Ellinghaus, D. Ivanishchev, E. R. Kinney, D. P. Morrison, V. Papavassiliou, Sébastien Gadrat, B. H. Kang, V. E. Semenov, H. Al-Ta'Ani, Tatsuya Chujo, Jen-Chieh Peng, J. G. Rubin, D. Reynolds, Inkyu Park, Xiong Wang, Z. Conesa del Valle, Dong Jo Kim, S. Takagi, M. Wysocki, I. Tserruya, M. Jezghani, Yu. Efremenko, V. Singh, T. Koblesky, K. N. Barish, A. Glenn, Eunja Kim, S. Sano, N. Kamihara, X. He, J. Zimamyi, O. O. Omiwade, R. Armendariz, Byoungchoo Park, Y. Aramaki, N. Apadula, V. Peresedov, Z. Rowan, M. Mendoza, M. L. Brooks, C. Oakley, A. Drees, Steven E. Skutnik, S. N. White, Deepa Thomas, J. Kubart, J. Koster, K. Sakashita, T. O. S. Haseler, H. Qu, P. B. Diss, Zvi Hirsh Citron, D. Kotov, S. Batsouli, H. Masui, A. K. Dubey, H. Ge, K. Nakano, Hideki Hamagaki, K. Aoki, G. David, K. I. Hahn, J. Egdemir, A. A. Bickley, D. S. Jumper, Jason Kamin, A. Veicht, A. Mwai, W. E. Sondheim, B. Love, P. Montuenga, S. P. Stoll, C. R. Cleven, C. Haegemann, Y. Inoue, K. Boyle, P. A. Rukoyatkin, T. Ichihara, T. Kempel, Dong-Hun Kim, S. Kaneti, Osamu Jinnouchi, S. S.E. Rosendahl, A. G. Litvinenko, G. Bunce, Matthew G. Reuter, Takahiro Fusayasu, K. Watanabe, Alexander Malakhov, K. Shoji, A. Churyn, R. Kitamura, D. Silvermyr, S. Kanda, P. W. Stankus, L. S. Zolin, D. Jouan, A. Sexton, W. J. Park, Christopher Rosen, A. Kozlov, P. D. Barnes, A. Yanovich, R. Seto, K. Haruna, B. Meredith, C. A. Ogilvie, T. K. Hemmick, B. J. Ramson, John Hill, J. M. Durham, Yasuo Miake, Toru Sugitate, L. D. Isenhower, I. Danchev, K. DeBlasio, L. Kochenda, M. Issah, R. Pinson, François Fleuret, I. Ravinovich, and D. Kawall
Subjects: Nuclear physics, Physics, Pseudorapidity, Elliptic flow, Hadron, General Physics and Astronomy, Rapidity, Multiplicity (mathematics), Nuclear Experiment, Nucleon, Glauber, Charged particle
Abstract: We present the first measurement of elliptic ($v_2$) and triangular ($v_3$) flow in high-multiplicity $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Two-particle correlations, where the particles have a large separation in pseudorapidity, are compared in $^{3}$He$+$Au and in $p$$+$$p$ collisions and indicate that collective effects dominate the second and third Fourier components for the correlations observed in the $^{3}$He$+$Au system. The collective behavior is quantified in terms of elliptic $v_2$ and triangular $v_3$ anisotropy coefficients measured with respect to their corresponding event planes. The $v_2$ values are comparable to those previously measured in $d$$+$Au collisions at the same nucleon-nucleon center-of-mass energy. Comparison with various theoretical predictions are made, including to models where the hot spots created by the impact of the three $^{3}$He nucleons on the Au nucleus expand hydrodynamically to generate the triangular flow. The agreement of these models with data may indicate the formation of low-viscosity quark-gluon plasma even in these small collision systems.
Published: 2015

10. Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Centrald+AuCollisions atsNN=200GeV

Author: K. Sakashita, Atsushi Takahara, D. Kotov, K. A. Drees, Dmitry Blau, Taku Gunji, H. Gong, J. Seele, J. Hamblen, Jason Kamin, F. Kajihara, S. P. Stoll, E. J. Desmond, S. S.E. Rosendahl, Hongfang Liu, D. E. Fields, S. Butsyk, G. Bunce, K. Das, S. Tarafdar, P. L. McGaughey, Y. Fukao, S. Zhou, B. V. Jacak, S. D. Rolnick, E. Vazquez-Zambrano, Eva Haslum, T. Hester, M. Chiu, C. A. Ogilvie, M. Tomášek, T. K. Hemmick, J. M. Durham, Yasuo Miake, L. Kochenda, M. Issah, M. McCumber, D. Jouan, G. S. Kyle, A. V. Kazantsev, Ajit Kumar Mohanty, C. L. Silva, James Alexander, R. Averbeck, Byung-Sik Hong, T. Sato, L. Tomášek, J. Hanks, Peter Christiansen, Vladimir Samsonov, A. Bazilevsky, Byoungchoo Park, Takahiro Fusayasu, A. Datta, C. Oakley, A. Drees, Soren Pontoppidan Sorensen, D. Isenhower, G. Roche, M. Kasai, T. Kempel, N. Grau, F. Matathias, Alexandre Lebedev, V. S. Pantuev, A. Toia, S. Kaneti, K. N. Barish, T. L. Thomas, ShinIchi Esumi, D. Silvermyr, Sung Keun Park, Y. Tsuchimoto, D. M. Lee, L. Patel, Y. Iwanaga, N. N. Ajitanand, Y. J. Mao, W. J. Park, Kensuke Homma, E. Richardson, K. Fujiwara, M. Rosati, Ryugo S. Hayano, Tamás Csörgő, Christopher Rosen, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Motoi Inaba, R. M. Wright, Aaron Angerami, J. L. Nagle, Takahiro Nakamura, J. H. Kang, E. T. Atomssa, A. Taranenko, Kazushi Miki, T. Horaguchi, A. Enokizono, A. Yanovich, S. Sano, K. Watanabe, K. Shoji, J. S. Yoo, M. K. Dayananda, Y. Riabov, Kenta Shigaki, Brajesh K. Singh, I. E. Yushmanov, P. Chung, Maya Hachiya Shimomura, R. S. Hollis, D. John, P. Castera, Y. L. Yamaguchi, X. Jiang, A. Dion, M. I. Nagy, Johannes Peter Wessels, D. McGlinchey, J. S. Haggerty, S. R. Lee, W. A. Zajc, M. Wysocki, B. Bannier, E. J. Kim, Susumu Oda, K. Utsunomiya, A. Durum, A. Sukhanov, K. Kurita, H. Pereira, D. Hornback, B. Meredith, M. Nguyen, Masamichi Ishihara, Y. Morino, Inkyu Park, M. L. Brooks, A. S. Nyanin, Rachid Nouicer, K. Okada, A. N. Zelenski, K. S. Sim, T-A Shibata, C. Silvestre, V. Baublis, John Hill, P. W. Stankus, Xiong Wang, H. W. Van Hecke, A. Denisov, Yuki Watanabe, V. Cianciolo, T. Sodre, B. Bassalleck, K. Yamaura, M. Proissl, Jongmin Lee, T. Murakami, Minghui Liu, Z. Conesa del Valle, Y. I. Makdisi, B. Love, Dong Jo Kim, Marisilvia Donadelli, V. Bumazhnov, Beomkyu Kim, Sergey Fokin, Anders Nils Erik Oskarsson, Hiromi Iinuma, H. En'yo, M. Konno, M. Heffner, Jiangyong Jia, Y. Goto, M. J. Leitch, Toru Sugitate, A. Kiss, Kenneth Francis Read, T. Ichihara, S. W. Nam, R. Tanabe, R. Pak, Henner Buesching, Y. S. Lai, Senta Greene, R. Yang, Steve Edwards, B. Komkov, I. J. Choi, M. Ouchida, A. T. Basye, Hans-Åke Gustafsson, Martin Purschke, N. Means, X. Gong, Marcus Hohlmann, Tsutomu Mibe, D. Kawall, S. Sawada, B. Fadem, E. O'Brien, D. Kleinjan, S. Taneja, J. Ying, Evert Anders Stenlund, Alexander Milov, Y. Nakamiya, D. Lynch, M. A. L. Leite, A. Franz, I. Nakagawa, C. Harper, L. A. Linden Levy, H. H. Shim, K. R. Andrews, R. A. Soltz, Eric Appelt, Young-Ki Kim, C. A. Aidala, Y. J. Kwon, T. Engelmore, K. Imai, H. Qu, Rushan Han, R. Seto, Jason Newby, S. H. Lim, G. Baksay, S. Bathe, C. L. Woody, François Fleuret, Frank Ellinghaus, Hideki Hamagaki, K. Aoki, G. David, R. Belmont, J. S. Kapustinsky, M. Grosse Perdekamp, M. J. Tannenbaum, D. Watanabe, V. Babintsev, K. Karatsu, K. I. Hahn, M. D. Malik, M. E. Connors, S. H. Lee, Y. Akiba, C. McKinney, S. Yokkaichi, A. Caringi, J. E. Frantz, I. Danchev, J. Ben-Benjamin, A. Taketani, S. Nagamiya, Prashant Shukla, E. Vznuzdaev, X. He, E. R. Kinney, O. Chvala, Vaclav Vrba, Klaus Johannes Reygers, D. P. Morrison, H. Torii, Y. Hori, Anne Marie Sickles, M. Mendoza, S. N. White, D. S. Jumper, Rui Wei, S. Campbell, S. F. Pate, O. Dietzsch, J. S. Kang, Y. Aramaki, B. Sahlmueller, Y. Ikeda, Deepa Thomas, Ke. Nakamura, O. Drapier, Robert Vertesi, B. H. Kang, T. Dahms, I. V. Sourikova, H. Valle, J. S. Bok, T. Jones, J. Koster, Dipanwita Dutta, R. Akimoto, A. Kim, Zvi Hirsh Citron, D. Winter, H. Al-Bataineh, R. Armendariz, D. Yu Peressounko, S. Dairaku, L. Guo, Alexei Khanzadeev, C. Gal, Julia Velkovska, E. Tennant, S. Rembeczki, G. R. Young, K. Nakano, M. Gonin, C. Pinkenburg, J. T. Mitchell, H. Masui, J. G. Lajoie, W. E. Sondheim, D. Ivanischev, H. Al-Ta'Ani, Tatsuya Chujo, A. Veicht, R. Seidl, Y. Onuki, K. Boyle, J. B. Choi, Vladislav Manko, I. Tserruya, P. Ružička, S. Motschwiller, M. Slunečka, Yu. Efremenko, Jan Rak, R. Lacey, D. Broxmeyer, S. Belikov, R. Granier de Cassagnac, A. Adare, M. Virius, V. Papavassiliou, Manabu Togawa, V. Singh, A. Kravitz, Alice Mignerey, K. B. Lee, J. C. Peng, C. Vale, L. D'Orazio, A. Morreale, Viktor Riabov, C. H. Chen, Z. Fraenkel, Takao Sakaguchi, A. Manion, Y. Miyachi, Gary Grim, I. Ravinovich, J. H. Bhom, A. D. Frawley, M. Bai, Y-J Kim, S. Huang, E. C. Aschenauer, W. Holzmann, K. V. Dharmawardane, D. Roach, K. M. Kijima, T. V. Moukhanova, Zhiying You, R. Bennett, R. K. Choudhury, M. Kawashima, A. Glenn, M. Finger, K. Hashimoto, Xingguo Li, B. Azmoun, A. Král, M. Oka, P. Kline, K. S. Lee, P. Liebing, K. S. Joo, N. Apadula, H. Pei, A. Vossen, D. Sharma, M. Sarsour, Mate Csanad, A. Iordanova, R. Ichimiya, M. Nihashi, R. P. Pisani, M. Kurosawa, M. Savastio, J. Jin, E. M. Takagui, C. Baumann, C. P. Singh, B. M. Johnson, R. J. Petti, J. Sziklai, Brian Cole, Charles Maguire, R. S. Towell, Kiyoshi Tanida, I. Garishvili, F. Wei, E. Kistenev, P. Lichtenwalner, J. Sun, C. Y. Chi, Y. Tanaka, E. Mannel, M. Naglis, Nagahiro Saito, H. J. Moon, L. Baksay, A. Deshpande, Y. Watanabe, I. Younus, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, and K. Sedgwick
Subjects: Physics, Range (particle radiation), Hadron, Elliptic flow, General Physics and Astronomy, Nuclear physics, Pion, Deuterium, Antiproton, Quadrupole, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Anisotropy
Abstract: We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central d+Au and minimum bias p+p collisions at sqrt[s_{NN}]=200 GeV. The charged hadron is measured at midrapidity |η| 2.75 is observed in d+Au collisions. Using the event plane method applied to the Au-going energy distribution, we extract the anisotropy strength v_{2} for inclusive charged hadrons at midrapidity up to p_{T}=4.5 GeV/c. We also present the measurement of v_{2} for identified π^{±} and (anti)protons in central d+Au collisions, and observe a mass-ordering pattern similar to that seen in heavy-ion collisions. These results are compared with viscous hydrodynamic calculations and measurements from p+Pb at sqrt[s_{NN}]=5.02 TeV. The magnitude of the mass ordering in d+Au is found to be smaller than that in p+Pb collisions, which may indicate smaller radial flow in lower energy d+Au collisions.
Published: 2015

11. Cold-Nuclear-Matter Effects on Heavy-Quark Production at Forward and Backward Rapidity ind+AuCollisions atsNN=200 GeV

Author: S. Bathe, Agneta Oskarsson, K. R. Andrews, R. A. Soltz, S. H. Lee, M. Grosse Perdekamp, Y. Akiba, X. He, T. Sodre, Jongmin Lee, M. E. Connors, C. McKinney, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, K. S. Sim, Rui Wei, Vladimir Samsonov, D. Lynch, I. Tserruya, Yu. Efremenko, D. Hornback, R. Yang, Y. Aramaki, Robert Vertesi, V. Singh, S. Taneja, T. Jones, Peter Christiansen, A. Taranenko, K. Imai, D. Winter, D. Yu Peressounko, S. Tarafdar, Kazushi Miki, T. Horaguchi, J. Koster, Eva Haslum, Brajesh K. Singh, A. Taketani, M. Ouchida, D. S. Jumper, H. Masui, N. Means, Tamas Ferenc Csorgo, Y. J. Mao, T. Dahms, Hiromi Iinuma, M. Gonin, A. Kiss, C. Harper, J. L. Nagle, K. Sakashita, M. Sarsour, Mate Csanad, D. John, P. Castera, Senta Greene, A. Glenn, K. Karatsu, A. T. Basye, Eunja Kim, A. Veicht, Henner Buesching, T. L. Thomas, A. Iordanova, J. Ben-Benjamin, B. Fadem, E. O'Brien, Y. Hori, Anne Marie Sickles, Taku Gunji, H. Gong, Steve Edwards, Gary Grim, S. Dairaku, J. H. Kang, J. S. Haggerty, D. Kotov, S. R. Lee, R. S. Towell, K. V. Dharmawardane, J. Seele, A. Sukhanov, A. Deshpande, K. Kurita, K. S. Joo, H. Pereira, Ryugo S. Hayano, Hongfang Liu, X. Gong, D. E. Fields, J. S. Yoo, M. K. Dayananda, F. Kajihara, Y. Riabov, K. Watanabe, Y. Morino, Kenta Shigaki, Marcus Hohlmann, B. V. Jacak, K. Utsunomiya, Inkyu Park, M. Nihashi, K. Shoji, M. Nguyen, K. N. Barish, L. A. Linden Levy, Xiong Wang, Z. Conesa del Valle, M. McCumber, C. Silvestre, A. S. Nyanin, N. Apadula, Dong Jo Kim, Rachid Nouicer, A. N. Zelenski, M. Proissl, G. R. Young, Jason Kamin, I. Garishvili, F. Wei, S. Butsyk, M. Wysocki, P. W. Stankus, M. Virius, Manabu Togawa, K. Fujiwara, Y. Onuki, B. Bannier, S. Zhou, A. Vossen, Y. L. Yamaguchi, J. Hanks, Jan Rak, S. Sano, R. Lacey, Marisilvia Donadelli, V. Bumazhnov, Sung Keun Park, O. Dietzsch, S. P. Stoll, R. Granier de Cassagnac, A. Adare, S. D. Rolnick, K. B. Lee, E. T. Atomssa, Y. Miyachi, S. S.E. Rosendahl, C. L. Woody, N. N. Ajitanand, H. A. Gustafsson, Y. S. Lai, R. P. Pisani, H. Valle, S. Esumi, Y. Watanabe, T. Murakami, J. C. Peng, C. H. Chen, D. Sharma, A. Manion, Dipanwita Dutta, H. W. Van Hecke, M. L. Brooks, R. Ichimiya, Ajit Kumar Mohanty, G. Bunce, Y. Ikeda, I. Younus, C. Gal, T. A. Shibata, C. L. Silva, T. Sato, R. Tanabe, P. Ružička, B. Azmoun, A. Král, Takahiro Nakamura, D. McGlinchey, Susumu Oda, A. Caringi, D. Roach, Julia Velkovska, Alexander Milov, K. M. Kijima, V. S. Pantuev, Y. Fukao, Viktor Riabov, A. Durum, M. Rosati, B. Love, I. Ravinovich, C. Y. Chi, T. Kempel, S. Kaneti, M. Bai, R. Akimoto, I. V. Sourikova, Aaron Angerami, K. Hashimoto, D. Isenhower, D. Jouan, J. Hamblen, W. A. Zajc, T. Hester, A. Toia, I. Nakagawa, Young-Ki Kim, T. Engelmore, K. Yamaura, O. Drapier, Frank Ellinghaus, M. Kurosawa, Xingguo Li, E. R. Kinney, M. Oka, C. Pinkenburg, E. C. Aschenauer, V. Baublis, Jiangyong Jia, A. Denisov, Yuki Watanabe, Y. Goto, V. Cianciolo, P. Kline, S. P. Sorensen, G. Roche, R. Seto, Sergey Fokin, K. Okada, K. S. Lee, H. Qu, D. Kleinjan, M. Naglis, M. Chiu, S. Sawada, C. A. Ogilvie, O. Chvala, Eric Appelt, I. Danchev, D. P. Morrison, H. En'yo, S. Campbell, B. H. Kang, M. J. Leitch, Zhiying You, R. Bennett, J. Ying, J. G. Lajoie, P. Liebing, M. Kawashima, Hideki Hamagaki, K. Aoki, M. Finger, A. Franz, M. Savastio, Masayasu Ishihara, N. Grau, Martin Purschke, T. K. Hemmick, Rushan Han, A. Enokizono, C. A. Aidala, G. David, K. I. Hahn, J. M. Durham, Yasuo Miake, A. Dion, M. I. Nagy, A. Kravitz, P. Chung, Y. J. Kwon, H. Al-Ta'Ani, Tatsuya Chujo, D. Broxmeyer, J. Jin, D. Kawall, A. Datta, E. M. Takagui, H. Themann, Prashant Shukla, A. Morreale, C. Baumann, Motoi Inaba, Z. Fraenkel, S. Yokkaichi, L. Kochenda, M. Issah, J. S. Kang, R. M. Wright, J. Murata, S. F. Pate, Ke. Nakamura, Gerd Joachim Kunde, R. K. Choudhury, C. P. Singh, I. Shein, B. M. Johnson, H. Al-Bataineh, R. Armendariz, R. J. Petti, K. Sedgwick, Johannes Peter Wessels, J. Sziklai, S. Motschwiller, Brian Cole, V. Papavassiliou, R. Pak, Beomkyu Kim, Byoungchoo Park, C. Oakley, A. Drees, I. J. Choi, D. Watanabe, M. D. Malik, E. Vznuzdaev, Alice Mignerey, L. D'Orazio, Takao Sakaguchi, A. D. Frawley, S. Huang, W. Holzmann, Maya Hachiya Shimomura, R. S. Hollis, Y. I. Makdisi, M. J. Tannenbaum, H. Torii, A. Kim, E. Tennant, S. Rembeczki, P. L. McGaughey, Minghui Liu, M. Heffner, Kenneth Francis Read, A. V. Kazantsev, Dmitry Blau, L. Tomášek, E. J. Desmond, E. Vazquez-Zambrano, M. Kasai, Y. Tsuchimoto, Y. Iwanaga, L. Patel, I. E. Yushmanov, L. Guo, Alexei Khanzadeev, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Jun Kikuchi, E. Stenlund, J. B. Choi, J. H. Bhom, Charles Maguire, T. V. Moukhanova, M. Mendoza, S. N. White, Deepa Thomas, Jason Newby, J. E. Frantz, Kiyoshi Tanida, E. Kistenev, Zvi Hirsh Citron, K. Nakano, P. Lichtenwalner, W. E. Sondheim, D. Ivanischev, J. Sun, H. Pei, K. Boyle, B. Meredith, John Hill, F. Matathias, Kensuke Homma, Toru Sugitate, E. Richardson, Atsushi Takahara, K. A. Drees, Y. Tanaka, B. Bassalleck, K. Das, E. Mannel, H. J. Moon, L. Baksay, M. Konno, Y. Nakamiya, B. Komkov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, G. Baksay, H. H. Shim, S. H. Lim, François Fleuret, R. Belmont, J. S. Kapustinsky, V. Babintsev, X. Jiang, B. Sahlmueller, Y. J. Kim, T. Ichihara, J. T. Mitchell, R. Seidl, S. W. Nam, M. Tomášek, Vladislav Manko, G. S. Kyle, James Alexander, M. Slunečka, Takahiro Fusayasu, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, S. Belikov, Alexandre Lebedev, D. M. Lee, C. Vale, D. Silvermyr, W. J. Park, Christopher Rosen, and A. Yanovich
Subjects: Quark, Semileptonic decay, Physics, Particle physics, General Physics and Astronomy, Binary number, Nuclear matter, Nuclear physics, Deuterium, Transverse momentum, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, Relativistic Heavy Ion Collider
Abstract: The PHENIX experiment has measured open heavy-flavor production via semileptonic decay over the transverse momentum range 1 < p(T) < 6 GeV/c at forward and backward rapidity (1.4 < vertical bar y vertical bar < 2.0) in d + Au and p + p collisions at root s(NN) = 200 GeV. In central d + Au collisions, relative to the yield in p + p collisions scaled by the number of binary nucleon-nucleon collisions, a suppression is observed at forward rapidity (in the d-going direction) and an enhancement at backward rapidity (in the Au-going direction). Predictions using nuclear-modified-parton-distribution functions, even with additional nuclear-p(T) broadening, cannot simultaneously reproduce the data at both rapidity ranges, which implies that these models are incomplete and suggests the possible importance of final-state interactions in the asymmetric d + Au collision system. These results can be used to probe cold-nuclear-matter effects, which may significantly affect heavy-quark production, in addition to helping constrain the magnitude of charmonia-breakup effects in nuclear matter.
Published: 2014

12. Azimuthal-Angle Dependence of Charged-Pion-Interferometry Measurements with Respect to Second- and Third-Order Event Planes inAu+AuCollisions atsNN=200 GeV

Author: M. I. Nagy, D. Watanabe, E. Vznuzdaev, Beomkyu Kim, A. Deshpande, Johannes Peter Wessels, P. Tarján, K. A. Drees, Senta Greene, A. T. Basye, A. V. Kazantsev, Taku Gunji, H. Gong, J. Seele, B. Fadem, E. O'Brien, R. A. Soltz, L. Tomášek, F. Kajihara, M. Grosse Perdekamp, M. E. Connors, K. Das, S. Butsyk, Alice Mignerey, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, E. P. Hartouni, H. Pei, Tadaaki Isobe, S. Zhou, B. Komkov, Takao Sakaguchi, M. Rosati, P. L. McGaughey, Peter Christiansen, M. A. L. Leite, S. D. Rolnick, A. D. Frawley, S. Afanasiev, T. Nakamura, D. Winter, S. Huang, J. Newby, G. Roche, D. Yu Peressounko, A. Sukhanov, K. Kurita, Ajit Kumar Mohanty, T. A. Shibata, H. Pereira, A. A. Vinogradov, W. Holzmann, Maya Hachiya Shimomura, Y. I. Makdisi, D. Hornback, A. Kiss, Y. Morino, T. Sato, R. Belmont, Henner Buesching, J. S. Kapustinsky, Steve Edwards, R. S. Towell, Y. Ikeda, M. Naglis, V. Babintsev, Minghui Liu, C. L. Silva, I. Garishvili, F. Wei, M. J. Tannenbaum, G. S. Kyle, A. Taranenko, D. Isenhower, I. Ravinovich, Y. J. Kwon, H. Torii, Kyeongpil Lee, James Alexander, A. Toia, Masayasu Ishihara, M. Gonin, C. Pinkenburg, Kazushi Miki, J. Ide, Marcus Hohlmann, S. P. Sorensen, H. A. Gustafsson, R. Averbeck, Byung-Sik Hong, Brajesh K. Singh, N. Saito, L. A. Linden Levy, A. Bazilevsky, K. Karatsu, Y. J. Mao, Y. Tanaka, M. Heffner, Kenneth Francis Read, P. Mikeš, O. Chvala, C. Y. Chi, Yasutada Akiba, D. Kawall, C. Zhang, I. Younus, Seong H. Kim, T. L. Thomas, E. Mannel, Anne Marie Sickles, Alexandre Lebedev, H. Themann, D. J. Kim, J. H. Kang, C. Baumann, J. G. Lajoie, D. M. Lee, S. Kametani, S. Tarafdar, E. T. Atomssa, Agneta Oskarsson, D. Kotchetkov, J. S. Haggerty, C. P. Singh, J. Murata, Viktor Riabov, B. M. Johnson, John Matthew Durham, Y. Berdnikov, Gerd Joachim Kunde, G. R. Young, P. Chung, M. Bai, I. J. Choi, A. Kravitz, K. B. Lee, A. Isupov, K. Kiriluk, I. Shein, M. Mishra, Y. Onuki, Ryugo S. Hayano, J. Sziklai, A. Datta, E. H. Kim, L. Baksay, Brian Cole, K. Tanida, Eva Haslum, B. Lenzi, Vaclav Vrba, O. Dietzsch, K. Sedgwick, H. Valle, J. Hamblen, Klaus Johannes Reygers, Y. S. Lai, T. Ichihara, M. Kurosawa, R. Lacey, Rui Wei, Y. Riabov, A. Yu. Semenov, R. Granier de Cassagnac, Charles Maguire, A. Adare, W. Xie, D. Roach, K. M. Kijima, Takahiro Fusayasu, P. Rosnet, Dipanwita Dutta, A. K. Purwar, K. Fujiwara, Y. Watanabe, Alexander Malakhov, I. Nakagawa, Y. L. Yamaguchi, Kenta Shigaki, M. Nguyen, D. Silvermyr, P. Ruzicka, W. A. Zajc, Xingguo Li, M. J. Leitch, V. Pantuev, E. Kistenev, Julia Velkovska, L. S. Zolin, E. Leitner, W. J. Park, V. Baublis, J. Jia, A. Denisov, V. Cianciolo, J. Jin, Takafumi Niida, E. M. Takagui, Mate Csanad, Christopher Rosen, Sergey Fokin, Zhiying You, A. Yanovich, H. W. Van Hecke, R. Bennett, S. N. White, M. Kawashima, K. S. Sim, Zvi Hirsh Citron, A. S. Nyanin, Rachid Nouicer, M. Proissl, K. Nakano, K. Okada, W. E. Sondheim, M. Wysocki, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, B. Meredith, Martin Purschke, C. A. Aidala, John Hill, Toru Sugitate, E. J. Desmond, F. Matathias, M. Finger, Kensuke Homma, E. Richardson, François Fleuret, M. Togawa, E. Vazquez-Zambrano, R. Yang, P. Constantin, J. Park, Jongmin Lee, B. Bassalleck, R. P. Pisani, E.J. Kim, M. Konno, Y. Tsuchimoto, C. L. Woody, Y. Nakamiya, G. Baksay, A. Morreale, S. Sawada, I. E. Yushmanov, D. Lynch, J. Ying, A. Franz, Z. Fraenkel, B. Sahlmueller, A. Berdnikov, Y. J. Kim, J. T. Mitchell, Y. Fukao, R. Seidl, C. M. Camacho, R. K. Choudhury, Prashant Shukla, Vladislav Manko, X. He, M. Slunečka, T. Hester, S. F. Pate, D. S. Jumper, Vladimir Samsonov, B. Azmoun, A. Král, T. Todoroki, S. Belikov, O. Drapier, P. Liebing, T. Dahms, N. A. Sparks, H. Al-Bataineh, C. Vale, S. Dairaku, Alexei Khanzadeev, E. Stenlund, I. V. Sourikova, Y. Aramaki, J. L. Nagle, Motoi Inaba, R. M. Wright, V. Papavassiliou, M. Oka, V. Peresedov, N. Kamihara, M. Virius, Robert Vertesi, K. S. Lee, A. Dion, C. Silvestre, C. H. Chen, Marisilvia Donadelli, V. Bumazhnov, T. V. Moukhanova, S. Nagamiya, M. Ouchida, Atsushi Taketani, A. Enokizono, A. Glenn, N. Means, K. S. Joo, H. En'yo, J. Koster, A. Rakotozafindrabe, R. Tanabe, Malik, Rushan Han, S. Esumi, D. Sharma, R. Ichimiya, H. Masui, A. A. Bickley, K. N. Barish, S. Sano, D. E. Fields, B. V. Jacak, M. McCumber, M. L. Brooks, S. Yokkaichi, J. P. Wood, J. Hanks, Sung Keun Park, Alexander Milov, N. N. Ajitanand, R. Luechtenborg, T. Engelmore, B. Love, Frank Ellinghaus, Susumu Oda, E. R. Kinney, A. Durum, D. P. Morrison, S. Campbell, K. Yamaura, A. G. Litvinenko, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, V. Singh, Jen-Chieh Peng, J. E. Frantz, Inkyu Park, Xiong Wang, A. Kozlov, A. Veicht, R. Seto, I. Danchev, R. Pak, A. Drees, K. Sakashita, T. Csorgo, Jason Kamin, N. Grau, S. P. Stoll, Y. Goto, T. Kempel, Dong-Hun Kim, S. S.E. Rosendahl, G. Bunce, D. Jouan, Kenichi Imai, H. Qu, S. Bathe, M. Chiu, Hideki Hamagaki, K. Aoki, J. Rak, G. David, K. I. Hahn, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, K. Watanabe, H. Liu, K. Shoji, L. Kochenda, M. Issah, T. Horaguchi, and P. W. Stankus
Subjects: Physics, Azimuth, Pion, Correlation function, Plane (geometry), Oscillation, media_common.quotation_subject, General Physics and Astronomy, Eccentricity (behavior), Atomic physics, Relativistic Heavy Ion Collider, Event (particle physics), media_common
Abstract: Charged-pion-interferometry measurements were made with respect to the second- and third-order event plane for Au+Au collisions at sqrt[s_{NN}]=200 GeV. A strong azimuthal-angle dependence of the extracted Gaussian-source radii was observed with respect to both the second- and third-order event planes. The results for the second-order dependence indicate that the initial eccentricity is reduced during the medium evolution, which is consistent with previous results. In contrast, the results for the third-order dependence indicate that the initial triangular shape is significantly reduced and potentially reversed by the end of the medium evolution, and that the third-order oscillations are largely dominated by the dynamical effects from triangular flow.
Published: 2014

13. Azimuthal-angle dependence of charged-pion-interferometry measurements with respect to second- and third-order event planes in Au+Au collisions at √[S(NN)]=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E P, Hartouni, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E, Kim, E-J, Kim, S H, Kim, Y-J, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, X, Li, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, T, Niida, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, T, Todoroki, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: Charged-pion-interferometry measurements were made with respect to the second- and third-order event plane for Au+Au collisions at sqrt[s_{NN}]=200 GeV. A strong azimuthal-angle dependence of the extracted Gaussian-source radii was observed with respect to both the second- and third-order event planes. The results for the second-order dependence indicate that the initial eccentricity is reduced during the medium evolution, which is consistent with previous results. In contrast, the results for the third-order dependence indicate that the initial triangular shape is significantly reduced and potentially reversed by the end of the medium evolution, and that the third-order oscillations are largely dominated by the dynamical effects from triangular flow.
Published: 2014

14. Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Centrald+AuCollisions atsNN=200 GeV

Author: H. Qu, Hideki Hamagaki, K. Aoki, G. David, K. I. Hahn, Takahiro Fusayasu, Masamichi Ishihara, D. Silvermyr, W. J. Park, T. L. Thomas, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, Maya Hachiya Shimomura, Y. I. Makdisi, Christopher Rosen, A. Yanovich, Minghui Liu, M. Heffner, Kenneth Francis Read, M. Nguyen, K. Watanabe, K. Shoji, Beomkyu Kim, A. S. Nyanin, T. Ichihara, T. Horaguchi, P. W. Stankus, M. J. Tannenbaum, Jen-Chieh Peng, Charles Maguire, Hongfang Liu, D. E. Fields, H. Torii, Rachid Nouicer, M. Proissl, Inkyu Park, D. Kawall, H. Themann, B. V. Jacak, Xiong Wang, Z. Conesa del Valle, C. Baumann, T. Kempel, E. Kistenev, Y. J. Kwon, C. P. Singh, S. Rembeczki, M. McCumber, Gary Grim, Dong Jo Kim, K. V. Dharmawardane, J. Hanks, B. M. Johnson, Dennis Perepelitsa, P. Lichtenwalner, R. J. Petti, K. S. Joo, Gerd Joachim Kunde, Sung Keun Park, S. P. Sorensen, A. Veicht, Alice Mignerey, N. Apadula, K. S. Sim, N. N. Ajitanand, I. Shein, L. D'Orazio, J. Sziklai, O. Chvala, H. A. Gustafsson, S. Esumi, D. Sharma, I. Ravinovich, Takahiro Nakamura, R. Yang, R. Ichimiya, Brian Cole, M. Ouchida, D. McGlinchey, S. Taneja, J. Newby, K. A. Drees, Takao Sakaguchi, K. Sedgwick, M. Bai, Susumu Oda, K. Imai, P. Ružička, J. G. Lajoie, N. Means, Ajit Kumar Mohanty, A. Durum, A. D. Frawley, D. Hornback, T. A. Shibata, C. L. Silva, T. Sato, Viktor Riabov, K. Das, S. Huang, K. Yamaura, A. Taranenko, D. Isenhower, A. Toia, W. Holzmann, I. J. Choi, A. Kravitz, Kazushi Miki, Zhiying You, M. Gonin, R. Bennett, Brajesh K. Singh, M. Kawashima, Y. Onuki, Alexander Milov, I. Nakagawa, T. Engelmore, Vladimir Samsonov, O. Drapier, Frank Ellinghaus, M. Finger, Jan Rak, E. R. Kinney, R. Lacey, Aaron Angerami, D. P. Morrison, S. Campbell, W. A. Zajc, R. Granier de Cassagnac, A. Adare, Tatsuya Chujo, A. Sukhanov, K. Kurita, I. Tserruya, B. Azmoun, Y. J. Mao, A. Král, Yu. Efremenko, V. Baublis, V. Singh, B. Meredith, A. Denisov, V. Cianciolo, H. Pereira, Sergey Fokin, D. Watanabe, Tamas Ferenc Csorgo, A. Glenn, John Hill, M. Oka, Eunja Kim, M. D. Malik, M. Kurosawa, J. L. Nagle, Y. Nakamiya, D. Lynch, E. Vznuzdaev, K. S. Lee, Y. Morino, K. Karatsu, Toru Sugitate, G. Baksay, P. Liebing, Anne Marie Sickles, C. Silvestre, Martin Purschke, C. A. Aidala, Marisilvia Donadelli, V. Bumazhnov, R. Tanabe, A. Enokizono, J. Jin, A. Morreale, P. Chung, E. M. Takagui, R. S. Towell, R. Pak, Z. Fraenkel, I. Garishvili, B. Sahlmueller, F. Wei, R. K. Choudhury, Rushan Han, Y. J. Kim, François Fleuret, G. R. Young, S. Tarafdar, M. Naglis, J. T. Mitchell, C. Y. Chi, Jongmin Lee, R. Seidl, Vladislav Manko, S. N. White, A. Datta, Eva Haslum, Deepa Thomas, Taku Gunji, H. Gong, J. Seele, S. Belikov, F. Kajihara, Zvi Hirsh Citron, A. Taketani, C. Vale, D. S. Jumper, T. Dahms, K. Nakano, A. Kiss, X. He, Y. Tanaka, A. Deshpande, F. Matathias, Kensuke Homma, W. E. Sondheim, E. Richardson, E. Mannel, S. Dairaku, S. Butsyk, Y. Aramaki, Robert Vertesi, B. Bassalleck, Henner Buesching, D. Ivanischev, M. Konno, S. Zhou, K. B. Lee, A. Dion, J. Koster, M. I. Nagy, K. Boyle, Johannes Peter Wessels, M. Virius, Manabu Togawa, Steve Edwards, Y. Watanabe, S. D. Rolnick, D. Roach, K. M. Kijima, H. Masui, H. J. Moon, C. H. Chen, L. Baksay, I. Younus, Xingguo Li, H. Pei, Marcus Hohlmann, M. Slunečka, P. L. McGaughey, K. N. Barish, L. A. Linden Levy, S. Sano, M. L. Brooks, B. Love, Senta Greene, R. Seto, I. Danchev, A. T. Basye, B. Fadem, E. O'Brien, C. L. Woody, R. A. Soltz, M. Grosse Perdekamp, A. Caringi, O. Dietzsch, M. E. Connors, S. Bathe, Agneta Oskarsson, E. T. Atomssa, H. Valle, Y. Akiba, A. V. Kazantsev, S. Nagamiya, Dipanwita Dutta, Vaclav Vrba, Klaus Johannes Reygers, K. Tanida, L. Tomášek, T. Jones, Rui Wei, Peter Christiansen, Julia Velkovska, K. Fujiwara, I. V. Sourikova, D. Winter, Y. L. Yamaguchi, M. Rosati, D. Yu Peressounko, H. W. Van Hecke, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Jiangyong Jia, Y. Goto, Jun Kikuchi, T. Murakami, D. Kleinjan, S. Sawada, J. Ying, A. Franz, G. S. Kyle, Y. Fukao, James Alexander, T. Hester, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, S. Yokkaichi, Dmitry Blau, N. Grau, Alexandre Lebedev, E. J. Desmond, Y. Ikeda, D. M. Lee, E. Vazquez-Zambrano, C. Pinkenburg, Aram Kim, Motoi Inaba, G. Roche, R. M. Wright, J. H. Kang, J. S. Haggerty, M. Kasai, Y. Tsuchimoto, V. S. Pantuev, Y. Iwanaga, C. Oakley, A. Drees, Y. S. Lai, I. E. Yushmanov, Alexei Khanzadeev, K. Sakashita, J. Hamblen, E. Stenlund, Jason Kamin, J. B. Choi, M. Csanad, S. P. Stoll, M. Nihashi, S. S.E. Rosendahl, G. Bunce, K. Okada, D. Jouan, H. En'yo, M. Chiu, M. J. Leitch, C. A. Ogilvie, T. K. Hemmick, J. M. Durham, Yasuo Miake, L. Kochenda, M. Issah, J. H. Bhom, R. P. Pisani, T. V. Moukhanova, Prashant Shukla, S. F. Pate, J. E. Frantz, J. Murata, Ke. Nakamura, H. Al-Bataineh, V. Papavassiliou, M. K. Dayananda, M. Wysocki, B. Komkov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, R. Belmont, J. S. Kapustinsky, V. Babintsev, X. Jiang, and S. W. Nam
Subjects: Physics, Particle physics, Large Hadron Collider, 010308 nuclear & particles physics, Hadron, Elliptic flow, General Physics and Astronomy, Parton, 01 natural sciences, Nuclear physics, 0103 physical sciences, Quadrupole, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Anisotropy
Abstract: The PHENIX collaboration at the Relativistic Heavy Ion Collider (RHIC) reports measurements of azimuthal dihadron correlations near midrapidity in d + Au collisions at root s(NN) = 200 GeV. These measurements complement recent analyses by experiments at the Large Hadron Collider (LHC) involving central p + Pb collisions at root s(NN) = 5.02 TeV, which have indicated strong anisotropic long-range correlations in angular distributions of hadron pairs. The origin of these anisotropies is currently unknown. Various competing explanations include parton saturation and hydrodynamic flow. We observe qualitatively similar, but larger, anisotropies in d + Au collisions at RHIC compared to those seen in p + Pb collisions at the LHC. The larger extracted upsilon(2) values in d + Au are consistent with expectations from hydrodynamic calculations owing to the larger expected initial-state eccentricity compared with that from p + Pb collisions. When both are divided by an estimate of the initial-state eccentricity the scaled anisotropies follow a common trend with multiplicity that may extend to heavy ion data at RHIC and the LHC, where the anisotropies are widely thought to arise from hydrodynamic flow.
Published: 2013

15. Nuclear Modification ofψ′,χc, andJ/ψProduction ind+AuCollisions atsNN=200 GeV

Author: K. Watanabe, A. V. Kazantsev, M. Gonin, Maya Hachiya Shimomura, Y. I. Makdisi, M. Chiu, C. A. Ogilvie, Charles Maguire, T. K. Hemmick, J. M. Durham, Yasuo Miake, K. Shoji, L. Kochenda, M. Issah, J. Newby, M. J. Tannenbaum, E. Kistenev, H. Torii, L. Tomášek, A. Sukhanov, K. Kurita, B. Azmoun, Y. J. Mao, A. Král, P. Lichtenwalner, T. Murakami, D. Kawall, X. He, H. A. Gustafsson, H. Pereira, D. Hornback, T. Horaguchi, S. Rembeczki, P. W. Stankus, Y. Nakamiya, D. Lynch, H. Themann, Y. Morino, K. S. Sim, V. S. Pantuev, A. Taranenko, Y. Aramaki, I. Ravinovich, T. C. Awes, Kazushi Miki, P. Ružička, K. A. Drees, B. Meredith, M. Oka, Robert Vertesi, Kyoichiro Ozawa, T. Liška, J. S. Bok, A. Dion, M. I. Nagy, G. Baksay, S. Sawada, K. S. Lee, Jun Kikuchi, Y. Tanaka, Brajesh K. Singh, R. Pak, E. Mannel, Alice Mignerey, J. Ying, A. Franz, Viktor Riabov, John Hill, R. Yang, Johannes Peter Wessels, M. Nihashi, Marisilvia Donadelli, V. Bumazhnov, L. D'Orazio, Toru Sugitate, Gerd Joachim Kunde, Aaron Angerami, M. Bai, S. Taneja, C. Baumann, P. Liebing, J. Koster, M. Slunečka, K. S. Joo, S. P. Sorensen, I. Shein, H. J. Moon, P. L. McGaughey, D. Watanabe, W. A. Zajc, S. Tarafdar, M. Ouchida, L. Baksay, François Fleuret, K. Imai, J. Hamblen, O. Chvala, M. D. Malik, E. Vznuzdaev, V. Baublis, B. Sahlmueller, M. K. Dayananda, N. Apadula, A. Denisov, Takao Sakaguchi, C. P. Singh, K. Karatsu, K. Sedgwick, K. Das, H. Pei, V. Cianciolo, Takahiro Fusayasu, M. Wysocki, Eva Haslum, Y. J. Kim, N. Means, R. P. Pisani, D. Silvermyr, R. Tanabe, A. D. Frawley, J. G. Lajoie, J. E. Frantz, Anne Marie Sickles, A. Deshpande, Senta Greene, Prashant Shukla, Beomkyu Kim, W. J. Park, Christopher Rosen, S. Esumi, Sergey Fokin, Zhiying You, A. Yanovich, R. Bennett, D. Sharma, B. M. Johnson, S. F. Pate, I. J. Choi, M. Kawashima, Ke. Nakamura, A. T. Basye, R. Ichimiya, H. Masui, S. N. White, Deepa Thomas, J. Murata, S. Huang, F. Matathias, A. Kravitz, Masamichi Ishihara, K. B. Lee, H. Al-Bataineh, M. Finger, T. Kempel, Zvi Hirsh Citron, Dennis Perepelitsa, Martin Purschke, K. Nakano, Gary Grim, Jongmin Lee, C. A. Aidala, Kensuke Homma, W. Holzmann, E. Richardson, Minghui Liu, B. Fadem, E. O'Brien, R. J. Petti, W. E. Sondheim, Y. Fukao, K. V. Dharmawardane, R. A. Soltz, Dmitry Blau, V. Papavassiliou, D. Ivanischev, Y. Watanabe, Rushan Han, K. Boyle, M. Heffner, Kenneth Francis Read, T. Ichihara, O. Dietzsch, M. Grosse Perdekamp, E. T. Atomssa, G. R. Young, H. Valle, E. J. Desmond, T. L. Thomas, D. Roach, K. M. Kijima, T. Hester, Vladimir Samsonov, A. Morreale, I. Younus, M. E. Connors, A. Taketani, Z. Fraenkel, Dipanwita Dutta, K. Okada, D. S. Jumper, Y. Onuki, B. Bassalleck, E. Vazquez-Zambrano, T. Dahms, R. K. Choudhury, J. Sziklai, Jan Rak, S. Dairaku, H. Qu, M. Kasai, Ryugo S. Hayano, Xingguo Li, B. Love, Julia Velkovska, M. Konno, Y. Tsuchimoto, R. Lacey, Y. Iwanaga, Tamas Ferenc Csorgo, H. En'yo, R. Granier de Cassagnac, Hideki Hamagaki, K. Aoki, G. David, M. Rosati, K. I. Hahn, J. T. Mitchell, I. E. Yushmanov, J. L. Nagle, Y. Riabov, Kenta Shigaki, M. Nguyen, Alexei Khanzadeev, Brian Cole, A. Adare, N. Grau, R. Seidl, Vladislav Manko, M. J. Leitch, E. Stenlund, J. B. Choi, M. Kurosawa, S. Belikov, A. S. Nyanin, K. Tanida, T. Jones, Peter Christiansen, Motoi Inaba, R. M. Wright, Rachid Nouicer, J. H. Bhom, C. Vale, Jiangyong Jia, M. Proissl, T. V. Moukhanova, D. Winter, M. Naglis, Y. Goto, D. Yu Peressounko, C. L. Woody, D. Kleinjan, A. Caringi, Y. J. Kwon, R. Seto, I. V. Sourikova, I. Danchev, J. Jin, E. M. Takagui, K. N. Barish, R. S. Towell, I. Garishvili, F. Wei, S. Sano, C. Y. Chi, M. L. Brooks, X. Jiang, S. W. Nam, K. Fujiwara, Y. L. Yamaguchi, G. S. Kyle, K. Sakashita, Jason Kamin, M. Csanad, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, D. Jouan, Aram Kim, C. Oakley, A. Drees, James Alexander, H. W. Van Hecke, S. Bathe, Agneta Oskarsson, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Y. Akiba, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Alexandre Lebedev, Rui Wei, D. M. Lee, A. Kiss, Sung Keun Park, Henner Buesching, N. N. Ajitanand, Steve Edwards, B. Komkov, Takahiro Nakamura, D. McGlinchey, Susumu Oda, J. H. Kang, A. Durum, Marcus Hohlmann, J. S. Haggerty, Norio Saito, Tsutomu Mibe, L. A. Linden Levy, M. A. L. Leite, Catherine Micaela Silvestre, K. Yamaura, R. Belmont, Hongfang Liu, D. E. Fields, J. S. Kapustinsky, V. Babintsev, Y. S. Lai, B. V. Jacak, Jen-Chieh Peng, Y. Ikeda, M. McCumber, C. Pinkenburg, Inkyu Park, G. Roche, Xiong Wang, Z. Conesa del Valle, J. Hanks, Dong Jo Kim, S. Yokkaichi, A. Veicht, Alexander Milov, I. Nakagawa, T. Engelmore, O. Drapier, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, S. Campbell, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, V. Singh, A. Glenn, Eunja Kim, M. Virius, Manabu Togawa, C. H. Chen, A. Enokizono, P. Chung, A. Datta, Taku Gunji, H. Gong, J. Seele, F. Kajihara, S. Butsyk, S. Zhou, S. D. Rolnick, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, T. Sato, D. Isenhower, and A. Toia
Subjects: Physics, Meson, 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Super Proton Synchrotron, Charged particle, Nuclear physics, Deuterium, 0103 physical sciences, Yield ratio, High Energy Physics::Experiment, Multiplicity (chemistry), Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present results for three charmonia states (psi' chi(c), and J/ psi) in d + Au collisions at vertical bar y vertical bar < 0.35 and root s(NN) = 200 GeV. We find that the modification of the psi' yield relative to that of the J/ psi scales approximately with charged particle multiplicity at midrapidity across p + A, d + Au, and A + A results from the Super Proton Synchrotron and the Relativistic Heavy Ion Collider. In large-impact-parameter collisions we observe a similar suppression for the psi' and J/ psi, while in small-impact-parameter collisions the more weakly bound psi' is more strongly suppressed. Owing to the short time spent traversing the Au nucleus, the larger psi' suppression in central events is not explained by an increase of the nuclear absorption owing to meson formation time effects.
Published: 2013

16. Measurement of Direct Photon Emission inK+→π+π0γDecay

Author: M. S. Atiya, J. M. Poutissou, George Redlinger, A. Konaka, L. S. Littenberg, M. Kuriki, S. H. Kettell, T. Inagaki, T. Shinkawa, R. A. McPherson, S. S. Adler, M. Aoki, F. C. Shoemaker, K. K. Li, Douglas Bryman, R. Poutissou, J. R. Stone, Y. Yoshimura, T. Numao, C. Witzig, S. Sugimoto, J. S. Haggerty, R. Soluk, J. A. Macdonald, M. V. Diwan, M. M. Ito, Ewart W. Blackmore, P. D. Meyers, Norihito Muramatsu, T. Nakano, M. Ardebili, Y. Kuno, Motoki Kobayashi, Y. Kishi, S. Kabe, T. Sato, M. R. Convery, P. C. Bergbusch, I-Hung Chiang, T. F. Kycia, James Frank, J. Mildenberger, R. C. Strand, T. K. Komatsubara, and P. Kitching
Subjects: Physics, Meson, Branching fraction, Hadron, Bremsstrahlung, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Kinetic energy, Electromagnetic radiation, Nuclear physics, Particle decay, Pion, High Energy Physics::Experiment, Atomic physics
Abstract: We have performed a measurement of the K + !� + � 0 decay and have observed 2×10 4 events. The best fit to the decay spectrum gives a branching ratio for direct photon emission of (4.7 ± 0.8 ± 0.3) × 10 6 in the � + kinetic energy region of 55 to 90 MeV and requires no component due to interference with inner bremsstrahlung.
Published: 2000

17. Measurement of Structure-Dependent K+→μ+νμγ Decay

Author: Y. Kishi, S. S. Adler, A. Stevens, M. Kuriki, P. C. Bergbusch, George Redlinger, M. S. Atiya, T. Sato, S. H. Kettell, I-Hung Chiang, M. Aoki, J. R. Stone, J. Mildenberger, F. C. Shoemaker, R. C. Strand, T. K. Komatsubara, T. Numao, J. A. Macdonald, K. K. Li, S. Sugimoto, M. R. Convery, P. Kitching, R. A. McPherson, Douglas Bryman, M. Ardebili, T. F. Kycia, Motoki Kobayashi, James Frank, J. M. Poutissou, S. Kabe, C. Witzig, Y. Yoshimura, M. V. Diwan, J. S. Haggerty, A. J.S. Smith, T. Inagaki, L. S. Littenberg, Ewart W. Blackmore, R. Soluk, P. D. Meyers, Norihito Muramatsu, Y. Kuno, T. Nakano, P. Padley, A. Sambamurti, R. Poutissou, Daniel Robert Marlow, A. Konaka, M. M. Ito, and T. Shinkawa
Subjects: Physics, Muon, Branching fraction, Radiative decay, Structure (category theory), General Physics and Astronomy, Absolute value (algebra), Atomic physics, Photon energy, Kinetic energy
Abstract: We report the first measurement of a structure-dependent component in the decay ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{\gamma}$. Using the kinematic region where the muon kinetic energy is greater than 137 MeV and the photon energy is greater than 90 MeV, we find that the absolute value of the sum of the vector and axial-vector form factors is $|{F}_{V}{+F}_{A}|\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.165\ifmmode\pm\else\textpm\fi{}0.007\ifmmode\pm\else\textpm\fi{}0.011$. This corresponds to a branching ratio of $B({\mathrm{SD}}^{+})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}(1.33\ifmmode\pm\else\textpm\fi{}0.12\ifmmode\pm\else\textpm\fi{}0.18)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$. We also set the limit $\ensuremath{-}0.04l{F}_{V}{\ensuremath{-}F}_{A}l0.24$ at $90%$ C.L.
Published: 2000

18. Attenuation of Second Sound in Superfluid3He−A1

Author: de Vegvar Pg, T. Sato, Okuda Y, H. Kojima, and Coleman Jj
Subjects: Physics, Superfluidity, Stokes' law of sound attenuation, Condensed matter physics, Attenuation coefficient, Attenuation, Second sound, Dissipative system, Phase (waves), General Physics and Astronomy, Magnetic field
Abstract: The attenuation of second sound (spin-entropy) wave in the superfluid A1 phase has been measured in magnetic fields up to 11 T and to sufficiently high frequency to observe the bulk attenuation proportional to the square of frequency. The measured attenuation coefficient is compared with the existing theories of hydrodynamics and dissipative coefficients. The resulting "excess" attenuation is discussed in terms of the temperature dependent spin diffusion coefficient in the superfluid.
Published: 2000

19. Evidence for the DecayK+→π+νν¯

Author: Ewart W. Blackmore, R. A. McPherson, S. H. Kettell, Y. Kuno, P. D. Meyers, J. S. Haggerty, Masaaki Kobayashi, Norihito Muramatsu, M. Kuriki, A. Stevens, A. J.S. Smith, P. C. Bergbusch, J. Roy, R. Poutissou, Stephen L. Adler, R. Soluk, T. Shinkawa, J. M. Poutissou, T. Nakano, T. Sato, J. R. Stone, George Redlinger, L. S. Littenberg, T. Numao, A. Sambamurti, A. O. Bazarko, M. R. Convery, Y. Kishi, J. A. Macdonald, M. Aoki, T. Inagaki, M. V. Diwan, S. Sugimoto, Daniel Robert Marlow, M. Ardebili, M. S. Atiya, Y. Yoshimura, A. Konaka, A. S. Turcot, J. Mildenberger, R. C. Strand, I-H. Chiang, T. K. Komatsubara, F. C. Shoemaker, C. Ng, M. M. Ito, T. F. Kycia, James Frank, P. Padley, P. Kitching, S. Kabe, K. K. Li, Douglas Bryman, and C. Witzig
Subjects: Momentum, Physics, Particle physics, Pion, Branching fraction, General Physics and Astronomy
Abstract: An event consistent with the signature expected for the rare kaon decay ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}\ensuremath{\nu}\overline{\ensuremath{\nu}}$ has been observed. In the pion momentum region examined, $211lPl230\mathrm{MeV}/c$, the backgrounds are estimated to contribute $0.08\ifmmode\pm\else\textpm\fi{}0.03$ events. If the event is due to ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}\ensuremath{\nu}\overline{\ensuremath{\nu}}$, the branching ratio is ${4.2}_{\ensuremath{-}3.5}^{+9.7}\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}$.
Published: 1997

20. Medium Modification of Jet Fragmentation inAu+AuCollisions atsNN=200 GeVMeasured in Direct Photon-Hadron Correlations

Author: K. Dehmelt, M. Kurosawa, Jen-Chieh Peng, F. Matathias, L. D'Orazio, Y. J. Mao, S. Kametani, Kensuke Homma, E. Richardson, Saskia Mioduszewski, P. Constantin, S. Miyasaka, Takao Sakaguchi, J. H. Kang, J. S. Haggerty, S. R. Lee, S. Chernichenko, B. Meredith, B. Bassalleck, C. Klein-Boesing, John Hill, Inkyu Park, P. D. Barnes, Jongmin Lee, A. D. Frawley, T. Tabaru, M. Konno, Hongfang Liu, Toru Sugitate, D. E. Fields, S. Huang, C. Silvestre, L. D. Isenhower, B. V. Jacak, B. Lewis, B. Komkov, Xiong Wang, O. Dietzsch, S. H. Aronson, J. Jin, E. M. Takagui, H. Valle, M. McCumber, Dong Jo Kim, W. Holzmann, Y. S. Lai, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, K. Sakashita, Herve Borel, D. Lynch, J. Hanks, Hiroaki Ohnishi, K. B. Lee, François Fleuret, R. A. Soltz, Dipanwita Dutta, Y. Nakamiya, D. Kotov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, Y. Tsuchimoto, C. Gal, Y. Miyachi, Sung Keun Park, Tomoya Tsuji, M. Mendoza, S. N. White, N. N. Ajitanand, A. Taketani, D. S. Jumper, Takahiro Nakamura, Julia Velkovska, R. Tanabe, D. Layton, D. McGlinchey, Y. Ikeda, Maya Hachiya Shimomura, R. S. Hollis, Susumu Oda, A. Durum, J. Egdemir, Zvi Hirsh Citron, Y. I. Makdisi, M. Grosse Perdekamp, S. H. Lim, K. Yamaura, K. O. Eyser, A. K. Purwar, K. Fujiwara, K. Nakano, J. G. Boissevain, R. Belmont, M. Stepanov, G. Baksay, Jason Kamin, M. B. Deaton, A. Sen, Masashi Kaneta, V. L. Rykov, T. Dahms, K. B. Kim, L. Ding, W. E. Sondheim, J. S. Kapustinsky, M. E. Connors, D. Ivanischev, V. Babintsev, S. P. Stoll, V. S. Pantuev, M. Sano, I. Tserruya, Y. L. Yamaguchi, D. Roach, K. M. Kijima, Yu. Efremenko, Tae-Yeon Lee, Martin Purschke, C. A. Aidala, S. Tarafdar, R. Akimoto, C. Pinkenburg, M. Rosati, W. C. Chang, R. Vértesi, K. Boyle, P. A. Rukoyatkin, C. R. Cleven, V. Singh, Y. Tanaka, J. Hamblen, C. Haegemann, Y. Inoue, C. Baumann, B. Sahlmueller, K. Hashimoto, E. Leitner, I. Ravinovich, M. Tomášek, G. S. Kyle, S. S.E. Rosendahl, G. Bunce, Y. J. Kim, M. J. Tannenbaum, H. Torii, Junji Tojo, James Alexander, J. Zimanyi, G. Roche, B. Love, A. Yu. Semenov, Rushan Han, S. Butsyk, Vladimir Samsonov, A. A. Vinogradov, E. Mannel, M. S. Daugherity, C. P. Singh, T. Ichihara, B. M. Johnson, Osamu Jinnouchi, M. Javani, Xingguo Li, Peter Christiansen, D. Winter, D. Yu Peressounko, Matthew G. Reuter, Atsushi Takahara, K. A. Drees, K. Karatsu, Filip Krizek, J. Gosset, Y. Hori, Anne Marie Sickles, Y. Nagata, Takahiro Fusayasu, R. Averbeck, E. C. Aschenauer, A. Churyn, Byung-Sik Hong, A. Bazilevsky, D. Mukhopadhyay, E. Tennant, S. Rembeczki, R. J. Petti, K. Okada, H. W. Van Hecke, J. T. Mitchell, D. Jouan, Philippe Rosnet, M. Bai, T. Kempel, Dong-Hun Kim, Eva Haslum, B. Lenzi, A. Morreale, S. Kaneti, R. Seidl, Vladislav Manko, S. Belikov, S. Baumgart, H. En'yo, M. J. Leitch, Christine Nattrass, T. Todoroki, Jiangyong Jia, C. L. Woody, A. Berdnikov, Y. Goto, A. Isupov, C. Suire, M. Naglis, Alexander Malakhov, Z. Fraenkel, H. J. Moon, F. Staley, L. Baksay, A. Glenn, J. Sziklai, D. Silvermyr, L. S. Zolin, Alexandre Lebedev, A. G. Litvinenko, D. M. Lee, K. Gainey, J. E. Frantz, M. Slunečka, Zhiying You, D. Kotchetkov, R. Bennett, C. A. Ogilvie, Brian Cole, Minghui Liu, Tamas Ferenc Csorgo, S. Afanasiev, A. Ster, W. J. Park, Eunja Kim, K. Watanabe, Christopher Rosen, R. S. Towell, R. K. Choudhury, S. P. Sorensen, D. Kleinjan, A. Yanovich, Dylan Walker, J. P. Wood, P. Tarján, I. Garishvili, Akio Kiyomichi, F. Wei, J. Klatsky, X. Bing, O. Chvala, M. Kawashima, S. Yokkaichi, K. Kiriluk, M. Finger, S. Dairaku, T. K. Hemmick, Seong H. Kim, J. M. Durham, E. H. Kim, Dmitry Blau, B. Azmoun, A. Král, M. J. Kweon, X. Jiang, Yasuo Miake, Masayasu Ishihara, O. Zaudtke, K. Shoji, G. R. Young, C. Vale, B. S. Chang, J. Newby, A. Kozlov, Alexander Milov, M. Heffner, Kyeongpil Lee, R. Seto, I. Nakagawa, R. Luechtenborg, Tomofumi Nagae, J. L. Nagle, P. Castera, Kenneth Francis Read, A. Kiss, M. Soumya, P. W. Stankus, Young-Ki Kim, N. Kurihara, K. Haruna, H. Pei, E. J. Desmond, T. Engelmore, N. Novitzky, J. G. Lajoie, J. Ide, Z. Yasin, T. Hachiya, Henner Buesching, O. Drapier, Frank Ellinghaus, M. Virius, E. T. Atomssa, L. Kochenda, M. Issah, M. Togawa, E. Vazquez-Zambrano, J. Klay, M. K. Lee, J. S. Kang, Steve Edwards, I. Danchev, S. Takagi, M. Oka, E. R. Kinney, Tadaaki Isobe, C. Y. Chi, A. Nederlof, J. Park, D. Hornback, D. P. Morrison, P. Kline, K. S. Lee, K. Das, H. J. Kim, A. Rakotozafindrabe, A. Kravitz, E. P. Hartouni, S. Campbell, M. Gonin, D. Kawall, B. H. Kang, Senta Greene, V. E. Semenov, K. N. Barish, Y. Komatsu, H. Themann, S. Wolin, R. Pak, C. H. Chen, M. Kasai, N. Kamihara, Steven E. Skutnik, K. S. Sim, V. Dzhordzhadze, M. I. Nagy, Y. Kwon, A. Garishvili, X. Gong, Marcus Hohlmann, V. I. Kochetkov, P. L. McGaughey, A. Taranenko, S. Sano, P. Liebing, H. Al-Ta'Ani, A. Sukhanov, K. Kurita, D. Watanabe, L. A. Linden Levy, Tatsuya Chujo, H. Pereira, A. T. Basye, I. V. Sourikova, I. E. Yushmanov, A. Manion, B. E. Norman, R. Armendariz, Y. Morino, M. Chiu, J. Murata, Byoungchoo Park, A. Drees, R. Yang, H. Qu, H. Hiejima, K. S. Joo, S. Taneja, Kazushi Miki, T. Horaguchi, Brajesh K. Singh, S. Bathe, Gerd Joachim Kunde, Charles Maguire, L. Guo, Alexei Khanzadeev, Agneta Oskarsson, Shinichi Masumoto, S. Choi, B. Fadem, E. O'Brien, C. O. Kim, I. Shein, E. Stenlund, J. B. Choi, H. Sakata, J. Kubart, A. V. Kazantsev, M. Vargyas, M. L. Brooks, Hideki Hamagaki, K. Aoki, G. David, K. Imai, K. I. Hahn, Y. Onuki, M. D. Malik, X. He, Y. Berdnikov, S. H. Lee, Y. Akiba, C. McKinney, E. Vznuzdaev, K. Sedgwick, M. Mishra, S. Nagamiya, Dipak Kumar Mishra, Kiyoshi Tanida, O. O. Omiwade, E. Kistenev, L. Tomášek, N. Apadula, P. Mikeš, Alberto Baldisseri, Mihael Makek, Jan Rak, M. Ouchida, N. Means, R. Lacey, Y. Aramaki, V. Peresedov, R. Granier de Cassagnac, A. Adare, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, J. Asai, H. Harada, J. Sun, J. Koster, L. Patel, A. Deshpande, T. V. Moukhanova, S. Batsouli, Shingo Sakai, T. L. Thomas, A. Vossen, H. Masui, A. K. Dubey, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, A. A. Bickley, Jun Kikuchi, A. Veicht, Y. Watanabe, Ryugo S. Hayano, A. Romana, I. Younus, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, S. Esumi, D. Sharma, Rachid Nouicer, A. N. Zelenski, M. Proissl, R. Ichimiya, A. Soldatov, C. Zhang, A. Hadj Henni, Beomkyu Kim, H. Å Gustafsson, Wei Xie, P. Ružička, I. J. Choi, L. Aphecetche, A. Dion, Johannes Peter Wessels, Viktor Riabov, K. V. Dharmawardane, H. Iinuma, A. P.T. Palounek, Aaron Angerami, W. A. Zajc, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Y. Tomita, Sergey Fokin, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, T. Sato, D. Isenhower, A. Toia, L. Mašek, H. Kanou, Taku Gunji, H. Gong, J. Seele, F. Kajihara, H. Delagrange, S. Zhou, C. M. Camacho, S. D. Rolnick, Prashant Shukla, S. F. Pate, J. L. Charvet, Ke. Nakamura, T. E. Miller, H. Al-Bataineh, A. Enokizono, P. Chung, J. Imrek, S. Motschwiller, Susumu Sato, W. S. Emam, V. Papavassiliou, Sébastien Gadrat, A. Datta, H. Asano, M. Mitrovski, Takafumi Niida, Bum-Hoon Lee, M. Wysocki, B. Bannier, T. Murakami, Robert F. Hobbs, Debashish Pal, S. Sawada, J. Ying, A. Franz, R. Reynolds, M. Sarsour, Mate Csanad, A. Iordanova, M. Nihashi, David D'Enterria, R. P. Pisani, M. N. Wagner, Y. Fukao, A. Shevel, T. Hester, N. A. Sparks, V-N. Tram, N. Grau, M. Leitgab, Motoi Inaba, R. M. Wright, J. Chiba, and Alice Mignerey
Subjects: Physics, Energy loss, Photon, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, Nuclear physics, Fragmentation (mass spectrometry), 0103 physical sciences, Fragmentation function, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: The jet fragmentation function is measured with direct photon-hadron correlations in p + p and Au + Au collisions at root S-NN = 200 GeV. The P-T of the photon is an excellent approximation to the initial P-T of the jet and the ratio Z(T) = P-T(h)/P-T(gamma) is used as a proxy for the jet fragmentation function. A statistical subtraction is used to extract the direct photon-hadron yields in Au + Au collisions while a photon isolation cut is applied in p + p. I-AA, the ratio of hadron yield opposite the photon in Au + Au to that in p + p, indicates modification of the jet fragmentation function. Suppression, most likely due to energy loss in the medium, is seen at high Z(T). The associated hadron yield at low Z(T) is enhanced at large angles. Such a trend is expected from redistribution of the lost energy into increased production of low-momentum particles.
Published: 2013

21. Nuclear modification of ψ', χc, and J/ψ production in d+Au collisions at sqrt[s(NN)]=200 GeV

Author: A, Adare, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, A, Angerami, K, Aoki, N, Apadula, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, J H, Bhom, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa del Valle, M, Connors, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, M K, Dayananda, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, L, D'Orazio, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, G, Grim, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, M, Issah, D, Ivanischev, Y, Iwanaga, B V, Jacak, J, Jia, X, Jiang, J, Jin, B M, Johnson, T, Jones, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, A, Kim, B I, Kim, D J, Kim, E-J, Kim, Y-J, Kim, E, Kinney, Á, Kiss, E, Kistenev, D, Kleinjan, L, Kochenda, B, Komkov, M, Konno, J, Koster, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, X, Li, P, Lichtenwalner, P, Liebing, L A, Linden Levy, T, Liška, H, Liu, M X, Liu, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, D, McGlinchey, N, Means, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, J T, Mitchell, A K, Mohanty, H J, Moon, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, T, Murakami, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, S, Nam, J, Newby, M, Nguyen, M, Nihashi, R, Nouicer, A S, Nyanin, C, Oakley, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, D, Perepelitsa, D Yu, Peressounko, R, Petti, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, I, Ravinovich, K F, Read, S, Rembeczki, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, H, Themann, D, Thomas, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, and S, Zhou
Abstract: We present results for three charmonia states (ψ', χc, and J/ψ) in d+Au collisions at |y|0.35 and sqrt[s(NN)]=200 GeV. We find that the modification of the ψ' yield relative to that of the J/ψ scales approximately with charged particle multiplicity at midrapidity across p+A, d+Au, and A+A results from the Super Proton Synchrotron and the Relativistic Heavy Ion Collider. In large-impact-parameter collisions we observe a similar suppression for the ψ' and J/ψ, while in small-impact-parameter collisions the more weakly bound ψ' is more strongly suppressed. Owing to the short time spent traversing the Au nucleus, the larger ψ' suppression in central events is not explained by an increase of the nuclear absorption owing to meson formation time effects.
Published: 2013

22. Fermiology of the strongly spin-orbit coupled superconductor Sn(1-x)In(x)Te: implications for topological superconductivity

Author: T, Sato, Y, Tanaka, K, Nakayama, S, Souma, T, Takahashi, S, Sasaki, Z, Ren, A A, Taskin, Kouji, Segawa, and Yoichi, Ando
Abstract: We have performed angle-resolved photoemission spectroscopy on the strongly spin-orbit coupled low-carrier density superconductor Sn(1-x)In(x)Te (x = 0.045) to elucidate the electronic states relevant to the possible occurrence of topological superconductivity, as recently reported for this compound based on point-contact spectroscopy. The obtained energy-band structure reveals a small holelike Fermi surface centered at the L point of the bulk Brillouin zone, together with a signature of a topological surface state, indicating that this material is a doped topological crystalline insulator characterized by band inversion and mirror symmetry. A comparison of the electronic states with a band-noninverted superconductor possessing a similar Fermi surface structure, Pb(1-x)Tl(x)Te, suggests that the anomalous behavior in the superconducting state of Sn(1-x)In(x)Te is related to the peculiar orbital characteristics of the bulk valence band and/or the presence of a topological surface state.
Published: 2012

23. Cold-Nuclear-Matter Effects on Heavy-Quark Production ind+AuCollisions atsNN=200 GeV

Author: H. Themann, M. Grosse Perdekamp, T. Hester, M. E. Connors, Sung Keun Park, S. Dairaku, N. N. Ajitanand, K. A. Drees, Marisilvia Donadelli, Takahiro Nakamura, T. Murakami, K. Tanida, Gerd Joachim Kunde, I. Shein, N. Grau, V. Bumazhnov, Charles Maguire, T. Jones, Peter Christiansen, M. Virius, Susumu Oda, Manabu Togawa, H. Pei, K. Sedgwick, Y. Onuki, S. P. Sorensen, E. Kistenev, D. Winter, D. Yu Peressounko, P. Lichtenwalner, M. Rosati, Jan Rak, A. Durum, Motoi Inaba, R. Lacey, C. H. Chen, Alexander Milov, I. Nakagawa, O. Chvala, R. Tanabe, Y. Tanaka, R. Granier de Cassagnac, A. Adare, E. Mannel, Catherine Micaela Silvestre, K. Yamaura, R. M. Wright, T. Engelmore, A. Deshpande, K. Das, Y. Ikeda, T. L. Thomas, H. A. Gustafsson, H. J. Moon, L. Baksay, X. Jiang, Dmitry Blau, Y. J. Kwon, Jiangyong Jia, Y. Goto, Jongmin Lee, J. G. Lajoie, Aram Kim, Ryugo S. Hayano, Y. Riabov, Maya Hachiya Shimomura, O. Drapier, Frank Ellinghaus, C. Pinkenburg, D. Kleinjan, Kenta Shigaki, Hongfang Liu, D. E. Fields, S. Sawada, Y. Watanabe, Masamichi Ishihara, M. Nguyen, I. J. Choi, A. Kravitz, C. Oakley, Y. I. Makdisi, A. Drees, C. Baumann, C. P. Singh, E. R. Kinney, D. P. Morrison, Senta Greene, B. V. Jacak, M. Nihashi, S. Campbell, A. Taketani, Minghui Liu, A. S. Nyanin, I. Younus, M. Gonin, Rachid Nouicer, G. Roche, K. S. Sim, M. Proissl, D. S. Jumper, J. Ying, A. Franz, A. T. Basye, M. McCumber, T. Dahms, Rushan Han, P. Ružička, E. J. Desmond, D. Watanabe, M. Heffner, Kenneth Francis Read, V. S. Pantuev, B. M. Johnson, B. Fadem, E. O'Brien, M. D. Malik, R. P. Pisani, Tatsuya Chujo, T. Ichihara, K. Watanabe, K. Shoji, C. L. Woody, A. Berdnikov, M. Chiu, R. Yang, O. Dietzsch, E. T. Atomssa, A. Sukhanov, K. Kurita, T. Csörgå, J. Hanks, H. Valle, C. A. Ogilvie, E. Vznuzdaev, S. W. Nam, A. V. Kazantsev, J. Hamblen, H. Pereira, A. Caringi, S. Taneja, Dipanwita Dutta, T. K. Hemmick, I. Ravinovich, T. Horaguchi, E. Vazquez-Zambrano, P. W. Stankus, J. M. Durham, R. J. Petti, Viktor Riabov, Y. Morino, M. Naglis, Jen-Chieh Peng, Yasuo Miake, Vladimir Samsonov, G. S. Kyle, Julia Velkovska, K. Imai, M. Bai, L. Tomášek, M. J. Tannenbaum, I. V. Sourikova, James Alexander, Gary Grim, K. Okada, A. Enokizono, J. Sziklai, L. Kochenda, M. Issah, K. V. Dharmawardane, H. Torii, K. Karatsu, Inkyu Park, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, H. En'yo, Anne Marie Sickles, P. Chung, R. Pak, M. J. Leitch, K. Sakashita, Xiong Wang, Z. Conesa del Valle, Dong Jo Kim, Brian Cole, S. Yokkaichi, M. Kasai, T. C. Awes, Kyoichiro Ozawa, T. Liška, Alexandre Lebedev, M. K. Dayananda, Zhiying You, D. M. Lee, R. Bennett, M. Kurosawa, M. Ouchida, M. Wysocki, J. Newby, Jason Kamin, S. Rembeczki, J. S. Bok, Jun Kikuchi, K. B. Lee, M. Csanad, M. Kawashima, S. P. Stoll, N. Means, A. Veicht, G. R. Young, H. Qu, J. L. Nagle, Y. Tsuchimoto, Y. Iwanaga, A. Datta, M. Finger, I. Tserruya, S. S.E. Rosendahl, G. Bunce, Yu. Efremenko, Prashant Shukla, B. Komkov, V. Singh, Taku Gunji, H. Gong, J. H. Kang, J. Seele, J. S. Haggerty, Hideki Hamagaki, K. Aoki, D. Hornback, G. David, S. F. Pate, K. I. Hahn, M. Slunečka, Norio Saito, Tsutomu Mibe, I. E. Yushmanov, M. A. L. Leite, F. Kajihara, Alice Mignerey, Ke. Nakamura, H. Al-Bataineh, P. L. McGaughey, D. Jouan, L. D'Orazio, J. Jin, A. Glenn, A. Dion, M. I. Nagy, E. M. Takagui, S. Butsyk, R. Belmont, A. Taranenko, D. Roach, K. M. Kijima, Eunja Kim, R. S. Towell, S. Zhou, Takao Sakaguchi, Johannes Peter Wessels, Aaron Angerami, Kazushi Miki, V. Papavassiliou, I. Garishvili, F. Wei, Y. S. Lai, T. Kempel, S. D. Rolnick, Xingguo Li, W. A. Zajc, A. D. Frawley, Brajesh K. Singh, V. Baublis, A. Denisov, V. Cianciolo, Ajit Kumar Mohanty, C. Y. Chi, Sergey Fokin, T. A. Shibata, C. L. Silva, T. Sato, S. Huang, Beomkyu Kim, W. Holzmann, S. Tarafdar, D. Isenhower, A. Toia, J. E. Frantz, Eva Haslum, J. Murata, Alexei Khanzadeev, E. Stenlund, J. B. Choi, J. H. Bhom, T. V. Moukhanova, J. S. Kapustinsky, V. Babintsev, B. Azmoun, Y. J. Mao, A. Král, M. Oka, K. S. Lee, P. Liebing, K. S. Joo, N. Apadula, S. Esumi, D. Sharma, R. Ichimiya, Martin Purschke, A. Morreale, Z. Fraenkel, R. K. Choudhury, K. Fujiwara, K. N. Barish, S. Sano, Y. L. Yamaguchi, M. L. Brooks, H. W. Van Hecke, X. He, Y. Nakamiya, D. Lynch, Y. Aramaki, Robert Vertesi, S. Bathe, Agneta Oskarsson, B. Meredith, John Hill, Toru Sugitate, G. Baksay, J. Koster, Y. Berdnikov, Y. Akiba, François Fleuret, S. Nagamiya, H. Masui, B. Sahlmueller, Vaclav Vrba, Klaus Johannes Reygers, Y. J. Kim, B. Love, Rui Wei, S. N. White, J. T. Mitchell, R. Seidl, Deepa Thomas, Vladislav Manko, A. Kiss, Zvi Hirsh Citron, S. Belikov, Henner Buesching, Steve Edwards, K. Nakano, C. Vale, R. Seto, Marcus Hohlmann, Christine Angela Aidala, W. E. Sondheim, D. Ivanischev, L. A. Linden Levy, F. Matathias, Kensuke Homma, E. Richardson, I. Danchev, K. Boyle, B. Bassalleck, M. Konno, Takahiro Fusayasu, D. Silvermyr, W. J. Park, Christopher Rosen, A. Yanovich, R. A. Soltz, Y. Fukao, and D. Kawall
Subjects: Quark, Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Electron, Nuclear matter, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, D meson, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The PHENIX experiment has measured electrons and positrons at midrapidity from the decays of hadrons containing charm and bottom quarks produced in d+Au and p+p collisions at sqrt[S(NN)]=200 GeV in the transverse-momentum range 0.85 ≤ p(T)(e) ≤ 8.5 GeV/c. In central d+Au collisions, the nuclear modification factor R(dA) at 1.5
Published: 2012

24. Spin polarization of gapped Dirac surface states near the topological phase transition in TlBi(S(1-x)Se(x))2

Author: S, Souma, M, Komatsu, M, Nomura, T, Sato, A, Takayama, T, Takahashi, K, Eto, Kouji, Segawa, and Yoichi, Ando
Abstract: We performed systematic spin- and angle-resolved photoemission spectroscopy of TlBi(S(1-x)Se(x))(2) which undergoes a topological phase transition at x ~ 0.5. In TlBiSe(2) (x = 1.0), we revealed a helical spin texture of Dirac-cone surface states with an intrinsic in-plane spin polarization of ~0.8. The spin polarization still survives in the gapped surface states at x0.5, although it gradually weakens upon approaching x = 0.5 and vanishes in the nontopological phase. No evidence for the out-of-plane spin polarization was found, irrespective of x and momentum. The present results unambiguously indicate the topological origin of the gapped Dirac surface states, and also impose a constraint on models to explain the origin of mass acquisition of Dirac fermions.
Published: 2012

25. Measurements of Higher Order Flow Harmonics inAu+AuCollisions atsNN=200 GeV

Author: R. Pak, Vladimir Samsonov, Beomkyu Kim, K. Boyle, N. Kamihara, Wei Xie, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, Kazuyoshi Kurita, F. Matathias, M. Ouchida, A. Drees, Tamas Ferenc Csorgo, Kensuke Homma, E. Richardson, K. N. Barish, D. Isenhower, A. Toia, Maya Hachiya Shimomura, Y. I. Makdisi, V. S. Pantuev, A. Yu. Semenov, J. L. Nagle, M. I. Nagy, D. Watanabe, P. Constantin, M. D. Malik, E. Vznuzdaev, J. Hamblen, S. Tarafdar, N. Means, S. P. Sorensen, K. I. Hahn, B. Bassalleck, T. Kempel, Dong-Hun Kim, M. J. Tannenbaum, H. Torii, Eva Haslum, B. Lenzi, Tadaaki Isobe, K. Karatsu, C. Silvestre, Marisilvia Donadelli, V. Bumazhnov, S. Afanasiev, S. Sano, Taku Gunji, H. Gong, J. Seele, F. Kajihara, S. Yokkaichi, B. Meredith, O. Chvala, P. L. McGaughey, Johannes Peter Wessels, Andry Malala Rakotozafindrabe, J. Newby, John Hill, Toru Sugitate, M. Konno, Anne Marie Sickles, R. Tanabe, K. Watanabe, Alice Mignerey, D. Hornback, M. L. Brooks, S. Butsyk, Y. J. Mao, François Fleuret, K. Okada, B. Sahlmueller, J. H. Kang, J. P. Wood, J. S. Haggerty, Seong H. Kim, A. V. Kazantsev, W. A. Zajc, A. Taranenko, V. Baublis, A. Denisov, H. En'yo, R. A. Soltz, K. Shoji, Y. Tanaka, Kazushi Miki, Brajesh K. Singh, X. He, J. T. Mitchell, M. Chiu, T. Ichihara, S. Zhou, M. J. Leitch, J. G. Lajoie, Takahiro Fusayasu, K. A. Drees, L. Tomášek, V. Cianciolo, Sergey Fokin, T. Horaguchi, M. Grosse Perdekamp, P. W. Stankus, M. E. Connors, Y. Aramaki, C. A. Ogilvie, V. Peresedov, Alexander Malakhov, D. Silvermyr, S. D. Rolnick, P. Mikeš, Kisung Lee, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, R. Seidl, Vladislav Manko, Takao Sakaguchi, T. K. Hemmick, L. S. Zolin, G. R. Young, W. J. Park, Christopher Rosen, A. Yanovich, I. J. Choi, A. Kravitz, K. B. Lee, M. Slunečka, K. Tanida, Rushan Han, O. Drapier, J. Koster, Frank Ellinghaus, E. J. Desmond, E. R. Kinney, D. P. Morrison, Y. J. Kwon, M. Kurosawa, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, J. M. Durham, Y. Onuki, Peter Christiansen, A. K. Purwar, K. Fujiwara, A. D. Frawley, D. Winter, S. Belikov, D. Yu Peressounko, S. N. White, Y. L. Yamaguchi, H. Masui, Zvi Hirsh Citron, Y. S. Lai, K. Nakano, Y. Ikeda, S. Campbell, Yasuo Miake, C. L. Woody, A. Berdnikov, A. A. Bickley, E. J. Mannel, W. E. Sondheim, D. Ivanischev, Jan Rak, R. Lacey, P. A. Rukoyatkin, K. Das, E. P. Hartouni, P. Chung, D. Roach, K. M. Kijima, M. Togawa, E. Vazquez-Zambrano, R. Granier de Cassagnac, A. Adare, L. Kochenda, M. Issah, P. Tarján, J. Park, B. Love, L. Baksay, C. Vale, Minghui Liu, H. Qu, M. Heffner, A. Datta, S. Huang, C. Pinkenburg, Kenneth Francis Read, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, Christine Angela Aidala, H. A. Gustafsson, Senta Greene, H. Pei, Xingguo Li, A. G. Litvinenko, E. Leitner, D. Kotchetkov, V. Singh, Y. Nakamiya, C. Zhang, Hideki Hamagaki, K. Aoki, A. T. Basye, G. David, M. Gonin, W. Holzmann, G. Roche, P. Ružička, Y. Tsuchimoto, B. Fadem, E. O'Brien, K. Sakashita, A. Kozlov, R. Seto, K. S. Sim, G. Baksay, O. Dietzsch, Viktor Riabov, E. T. Atomssa, A. Sukhanov, H. Pereira, I. V. Sourikova, T. L. Thomas, Y. Morino, I. Danchev, R. Yang, I. E. Yushmanov, Y. J. Kim, Ryugo S. Hayano, H. Valle, Dipanwita Dutta, K. Imai, Y. Riabov, Alexei Khanzadeev, Kenta Shigaki, M. Nguyen, E. Stenlund, A. S. Nyanin, Rachid Nouicer, H. W. Van Hecke, M. Proissl, Julia Velkovska, Jason Kamin, Eunja Kim, Jen-Chieh Peng, T. V. Moukhanova, Charles Maguire, S. P. Stoll, M. Rosati, R. Vértesi, A. Kiss, Inkyu Park, Henner Buesching, E. Kistenev, Xiong Wang, A. A. Vinogradov, S. S.E. Rosendahl, Steve Edwards, Dong Jo Kim, G. Bunce, J. E. Frantz, Jiangyong Jia, Y. Goto, A. Veicht, Marcus Hohlmann, L. A. Linden Levy, D. Jouan, S. Bathe, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, S. Dairaku, J. Jin, E. M. Takagui, R. S. Towell, I. Garishvili, F. Wei, Kyeongpil Lee, S. Sawada, J. Ying, A. Franz, M. Virius, J. Ide, C. Y. Chi, C. Baumann, C. H. Chen, S. Kametani, C. P. Singh, B. M. Johnson, A. Glenn, A. Isupov, J. Sziklai, Jongmin Lee, Brian Cole, D. Lynch, D. S. Jumper, T. Dahms, I. Ravinovich, M. Wysocki, M. Bai, C. M. Camacho, M. Naglis, Zhiying You, R. Bennett, M. Kawashima, M. Finger, Prashant Shukla, C. L. Silva, S. F. Pate, H. Al-Bataineh, Masayasu Ishihara, V. Papavassiliou, D. Kawall, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, E. H. Kim, K. Sedgwick, A. Deshpande, Y. Watanabe, I. Younus, B. Komkov, Norio Saito, Hongfang Liu, D. E. Fields, M. A. L. Leite, B. V. Jacak, M. McCumber, Y. Fukao, R. Belmont, J. S. Kapustinsky, V. Babintsev, G. S. Kyle, J. Hanks, James Alexander, R. Averbeck, Byung-Sik Hong, T. Hester, Sung Keun Park, N. N. Ajitanand, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, Takahiro Nakamura, K. Kiriluk, Susumu Oda, N. A. Sparks, A. Durum, K. Yamaura, Martin Purschke, N. Grau, Motoi Inaba, R. M. Wright, Mate Csanad, R. P. Pisani, A. Morreale, Z. Fraenkel, R. K. Choudhury, B. Azmoun, A. Král, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, P. Liebing, K. S. Joo, S. Esumi, D. Sharma, and R. Ichimiya
Subjects: Nuclear physics, Physics, Harmonics, Monte Carlo method, General Physics and Astronomy, Entropy (information theory), Rapidity, Boundary value problem, Nuclear Experiment, Anisotropy, Collision, Glauber
Abstract: Flow coefficients nu(n) for n = 2, 3, 4, characterizing the anisotropic collective flow in Au + Au collisions at root s(NN) = 200 GeV, are measured relative to event planes Psi(n), determined at large rapidity. We report nu(n) as a function of transverse momentum and collision centrality, and study the correlations among the event planes of different order n. The nu(n) are well described by hydrodynamic models which employ a Glauber Monte Carlo initial state geometry with fluctuations, providing additional constraining power on the interplay between initial conditions and the effects of viscosity as the system evolves. This new constraint can serve to improve the precision of the extracted shear viscosity to entropy density ratio eta/s.
Published: 2011

26. Topological surface states in lead-based ternary telluride Pb(Bi(1-x)Sb(x))2Te4

Author: S, Souma, K, Eto, M, Nomura, K, Nakayama, T, Sato, T, Takahashi, Kouji, Segawa, and Yoichi, Ando
Abstract: We have performed angle-resolved photoemission spectroscopy on Pb(Bi(1-x)Sb(x))2Te4, which is a member of lead-based ternary tellurides and has been theoretically proposed as a candidate for a new class of three-dimensional topological insulators. In PbBi2Te4, we found a topological surface state with a hexagonally deformed Dirac-cone band dispersion, indicating that this material is a strong topological insulator with a single topological surface state at the Brillouin-zone center. Partial replacement of Bi with Sb causes a marked change in the Dirac carrier concentration, leading to the sign change of Dirac carriers from n type to p type. The Pb(Bi(1-x)Sb(x))2Te4 system with tunable Dirac carriers thus provides a new platform for investigating exotic topological phenomena.
Published: 2011

27. Suppression of Back-to-Back Hadron Pairs at Forward Rapidity ind+AuCollisions atsNN=200 GeV

Author: F. Matathias, Kensuke Homma, E. Richardson, L. Tomášek, K. I. Hahn, Y. Fukao, B. Bassalleck, Alexei Khanzadeev, M. Konno, T. Hester, A. Kiss, E. Stenlund, J. B. Choi, Henner Buesching, Steve Edwards, J. T. Mitchell, R. Seidl, Vladislav Manko, M. Slunečka, Y. Nakamiya, G. Baksay, S. Belikov, Y. J. Kim, Marcus Hohlmann, C. Vale, K. V. Dharmawardane, X. He, N. Grau, X. Jiang, H. Pei, Christine Angela Aidala, K. S. Sim, Maya Hachiya Shimomura, Y. I. Makdisi, T. Horaguchi, M. Rosati, K. Sakashita, Hongfang Liu, D. E. Fields, C. Silvestre, T. Murakami, Y. Aramaki, Martin Purschke, V. Peresedov, Robert Vertesi, B. V. Jacak, Y. Ikeda, E. J. Mannel, C. L. Woody, A. Berdnikov, Alexander Milov, T. C. Awes, Kyoichiro Ozawa, T. Liška, Marisilvia Donadelli, V. Bumazhnov, Motoi Inaba, B. Meredith, L. A. Linden Levy, R. Yang, I. Nakagawa, T. Engelmore, O. Drapier, Frank Ellinghaus, C. Pinkenburg, J. Koster, J. S. Bok, Jun Kikuchi, M. McCumber, R. M. Wright, A. Caringi, J. H. Bhom, E. R. Kinney, M. Gonin, S. Tarafdar, John Hill, Toru Sugitate, D. P. Morrison, A. Morreale, S. Campbell, R. Tanabe, S. Taneja, H. Masui, J. Jin, Jason Kamin, Mate Csanad, Jongmin Lee, D. Lynch, T. Kempel, E. M. Takagui, A. Sukhanov, Jiangyong Jia, Z. Fraenkel, Y. Goto, M. Naglis, S. Bathe, G. Roche, M. J. Tannenbaum, Y. J. Kwon, S. Sawada, J. Ying, A. Franz, T. V. Moukhanova, C. Baumann, D. Watanabe, H. Pereira, Y. Morino, D. S. Jumper, K. Imai, H. Torii, K. A. Drees, R. K. Choudhury, François Fleuret, J. Hanks, S. P. Stoll, M. D. Malik, Dmitry Blau, T. Dahms, Agneta Oskarsson, H. A. Gustafsson, Tatsuya Chujo, B. Azmoun, A. Král, Y. Onuki, E. Vznuzdaev, C. P. Singh, I. V. Sourikova, T. Ichihara, Rushan Han, M. Nihashi, B. M. Johnson, Sung Keun Park, Charles Maguire, Masayasu Ishihara, S. Dairaku, I. Tserruya, Yu. Efremenko, Minghui Liu, A. Kim, Jan Rak, S. S.E. Rosendahl, K. N. Barish, G. Bunce, Takahiro Fusayasu, Vladimir Samsonov, R. J. Petti, Eva Haslum, E. J. Desmond, Y. Berdnikov, G. Grim, K. B. Lee, N. N. Ajitanand, V. Singh, R. Lacey, S. Nam, Alexander Malakhov, Y. Akiba, D. Silvermyr, M. Oka, M. Togawa, M. Heffner, R. Granier de Cassagnac, Kenneth Francis Read, A. Adare, P. Ružička, S. Nagamiya, L. S. Zolin, W. J. Park, Christopher Rosen, M. Virius, A. Isupov, D. Kawall, H. Themann, E. Vazquez-Zambrano, M. Kasai, Tamas Ferenc Csorgo, Alice Mignerey, J. Sziklai, S. Sano, R. P. Pisani, A. Yanovich, O. Dietzsch, J. L. Nagle, E. T. Atomssa, L. D'Orazio, D. Jouan, H. Valle, Viktor Riabov, E. Kistenev, Atsushi Taketani, P. Liebing, A. Dion, Takahiro Nakamura, M. I. Nagy, S. Yokkaichi, Dipanwita Dutta, Brian Cole, S. N. White, Deepa Thomas, C. H. Chen, R. Pak, J. Murata, Y. Tsuchimoto, Y. Iwanaga, K. S. Joo, P. Lichtenwalner, M. Ouchida, K. Das, M. L. Brooks, K. Karatsu, Zvi Hirsh Citron, Johannes Peter Wessels, Julia Velkovska, A. Glenn, Susumu Oda, Takao Sakaguchi, B. Komkov, Y. J. Mao, K. Watanabe, S. Afanasiev, K. Nakano, I. Ravinovich, Anne Marie Sickles, W. E. Sondheim, N. Means, R. S. Towell, Aaron Angerami, Gerd Joachim Kunde, Eunja Kim, I. E. Yushmanov, B. Love, A. D. Frawley, D. Ivanischev, A. Durum, D. Roach, P. A. Rukoyatkin, I. Garishvili, M. Bai, I. Shein, N. Apadula, Jen-Chieh Peng, P. L. McGaughey, Beomkyu Kim, K. Boyle, Vaclav Vrba, Norio Saito, Tsutomu Mibe, Klaus Johannes Reygers, J. Newby, Kazuyoshi Kurita, F. Wei, W. A. Zajc, M. K. Dayananda, K. M. Kijima, S. Huang, J. H. Kang, K. Shoji, J. S. Haggerty, M. A. L. Leite, C. Oakley, A. G. Litvinenko, A. Drees, V. Baublis, A. Denisov, V. Cianciolo, K. Sedgwick, Inkyu Park, Rui Wei, W. Holzmann, K. Yamaura, V. S. Pantuev, Sergey Fokin, Zhiying You, M. Wysocki, S. Esumi, A. Deshpande, Xiong Wang, D. Sharma, Z. Conesa del Valle, Dong Jo Kim, P. W. Stankus, G. R. Young, R. Bennett, M. Kawashima, R. Ichimiya, Y. Tanaka, T. L. Thomas, M. Finger, A. Veicht, R. Seto, D. Hornback, M. Chiu, R. Belmont, J. S. Kapustinsky, Xingguo Li, J. E. Frantz, Ryugo S. Hayano, V. Babintsev, J. Hamblen, Y. S. Lai, C. A. Ogilvie, C. Y. Chi, Y. Watanabe, G. S. Kyle, I. Danchev, Kisung Lee, T. K. Hemmick, Y. Riabov, Kenta Shigaki, I. Younus, Prashant Shukla, J. M. Durham, H. J. Moon, L. Baksay, Yasuo Miake, S. P. Sorensen, M. Nguyen, K. Fujiwara, H. Qu, James Alexander, K. Okada, A. S. Nyanin, S. F. Pate, R. Averbeck, A. Taranenko, Hideki Hamagaki, K. Aoki, Byung-Sik Hong, A. Bazilevsky, L. Kochenda, M. Issah, Rachid Nouicer, O. Chvala, M. Proissl, B. Sahlmueller, G. David, Y. L. Yamaguchi, Kazushi Miki, H. En'yo, Alexandre Lebedev, M. J. Leitch, D. M. Lee, Ke. Nakamura, J. G. Lajoie, Brajesh K. Singh, H. Al-Bataineh, I. J. Choi, A. Kravitz, H. W. Van Hecke, V. Papavassiliou, R. A. Soltz, M. Grosse Perdekamp, M. E. Connors, K. Tanida, T. Jones, Peter Christiansen, D. Winter, D. Yu Peressounko, Senta Greene, A. T. Basye, B. Fadem, E. O'Brien, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, T. Sato, D. Isenhower, A. Toia, M. Kurosawa, A. Enokizono, P. Chung, A. Datta, Taku Gunji, H. Gong, J. Seele, F. Kajihara, S. Butsyk, S. Zhou, S. D. Rolnick, and A. V. Kazantsev
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, General Physics and Astronomy, Parton, 7. Clean energy, 01 natural sciences, Gluon, Nuclear physics, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Impact parameter, Nuclear Experiment, 010306 general physics, Nucleon, Relativistic Heavy Ion Collider
Abstract: Back-to-back hadron pair yields in d + Au and p + p collisions at root S-NN = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity vertical bar eta vertical bar < 0: 35 and the associated hadron at forward rapidity (deuteron direction, 3.0< eta < 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case, the yield of back-to-back hadron pairs in d + Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to p + p collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with a low fraction x of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, p(T), and eta points to cold nuclear matter effects arising at high parton densities.
Published: 2011

28. Cold Nuclear Matter Effects onJ/ψYields as a Function of Rapidity and Nuclear Geometry ind+ACollisions atsNN=200 GeV

Author: T. L. Thomas, V. S. Pantuev, K. S. Joo, Ryugo S. Hayano, S. Afanasiev, M. K. Dayananda, E. H. Kim, X. Jiang, J. Hamblen, A. Ster, Y. Riabov, M. Wysocki, Kenta Shigaki, N. Apadula, I. Tserruya, Yu. Efremenko, J. Newby, M. Nguyen, Tadaaki Isobe, K. Okada, B. Sahlmueller, A. Vossen, Y. Nakamiya, V. Singh, A. S. Nyanin, Dmitry Blau, Jongmin Lee, Y. Fukao, H. En'yo, P. Tarján, M. J. Leitch, Rachid Nouicer, M. Proissl, S. Esumi, O. Dietzsch, D. Sharma, P. L. McGaughey, Charles Maguire, T. Hester, K. A. Drees, C. M. Camacho, E. J. Desmond, R. Ichimiya, K. Das, E. P. Hartouni, E. T. Atomssa, H. Valle, H. A. Gustafsson, D. Hornback, G. Baksay, D. Lynch, Prashant Shukla, T. Kempel, Dong-Hun Kim, M. Chiu, S. F. Pate, M. Togawa, E. Vazquez-Zambrano, A. Glenn, Ke. Nakamura, S. N. White, Dipanwita Dutta, C. Zhang, G. S. Kyle, Deepa Thomas, P. Ružička, R. Pak, Kiyoshi Tanida, Marisilvia Donadelli, V. Bumazhnov, J. Park, Andry Malala Rakotozafindrabe, D. S. Jumper, A. Yu. Semenov, V. L. Rykov, T. Dahms, H. Al-Bataineh, B. Azmoun, A. Král, M. J. Kweon, A. Taranenko, James Alexander, Eunja Kim, Julia Velkovska, E. Kistenev, C. L. Woody, A. Berdnikov, J. Gosset, N. Kamihara, M. Gonin, Zvi Hirsh Citron, K. Nakano, Viktor Riabov, K. Watanabe, Y. Tsuchimoto, R. Tanabe, Y. Iwanaga, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, I. Ravinovich, K. Shoji, I. E. Yushmanov, Kazushi Miki, T. Horaguchi, W. E. Sondheim, D. Ivanischev, Minghui Liu, P. Lichtenwalner, M. Rosati, A. Caringi, Y. J. Kim, Jen-Chieh Peng, Kazuyoshi Kurita, V-N. Tram, N. Grau, Senta Greene, Taku Gunji, H. Gong, C. Oakley, A. Drees, J. Seele, M. Oka, D. Layton, P. A. Rukoyatkin, L. Aphecetche, V. Papavassiliou, Hongfang Liu, D. E. Fields, K. O. Eyser, A. K. Purwar, A. T. Basye, M. Heffner, Kenneth Francis Read, A. Sukhanov, H. Pereira, K. V. Dharmawardane, B. V. Jacak, M. Bai, Philippe Rosnet, P. W. Stankus, Brajesh K. Singh, T. Murakami, K. Fujiwara, T. Ichihara, Alexandre Lebedev, Y. Morino, Inkyu Park, B. Fadem, E. O'Brien, Takahiro Fusayasu, W. C. Chang, Xiong Wang, A. A. Vinogradov, Atsushi Taketani, Y. L. Yamaguchi, R. A. Soltz, H. Borel, J. T. Mitchell, Motoi Inaba, R. M. Wright, Alexei Khanzadeev, I. V. Sourikova, M. McCumber, F. Kajihara, S. Yokkaichi, P. Liebing, Tae-Yeon Lee, Martin Purschke, Z. Conesa del Valle, Jiangyong Jia, Y. Goto, Y. Tanaka, Alexander Malakhov, Dong Jo Kim, E. Stenlund, G. Grim, M. Grosse Perdekamp, D. M. Lee, D. Silvermyr, A. Dion, C. A. Ogilvie, H. Iinuma, Rushan Han, K. Karatsu, M. Kasai, A. P.T. Palounek, M. E. Connors, R. Seidl, Vladislav Manko, M. Slunečka, Zhiying You, K. B. Lee, A. V. Kazantsev, S. Sawada, R. Bennett, J. B. Choi, J. Ying, A. Franz, Johannes Peter Wessels, L. S. Zolin, M. Kawashima, Kisung Lee, Mate Csanad, A. Veicht, W. J. Park, Anne Marie Sickles, Y. Ikeda, T. K. Hemmick, J. G. Boissevain, E. J. Mannel, Christopher Rosen, K. Kiriluk, J. M. Durham, Yasuo Miake, P. D. Barnes, A. Yanovich, Aaron Angerami, J. Hanks, M. Ouchida, S. Belikov, M. Finger, S. Dairaku, W. A. Zajc, L. Tomášek, Sung Keun Park, Vladimir Samsonov, J. H. Bhom, S. Butsyk, N. Means, J. Asai, S. Tarafdar, A. Morreale, Z. Fraenkel, H. J. Moon, L. Baksay, T. Jones, N. N. Ajitanand, L. Kochenda, M. Issah, O. Zaudtke, M. Nihashi, B. Meredith, B. Komkov, V. Baublis, H. W. Van Hecke, A. Denisov, Peter Christiansen, V. Cianciolo, Alexander Milov, I. Nakagawa, T. Engelmore, Y. Tomita, T. V. Moukhanova, Sergey Fokin, D. Roach, K. M. Kijima, C. Vale, H. Qu, Shingo Sakai, M. I. Nagy, T. C. Awes, Kyoichiro Ozawa, T. Liška, H. Pei, R. Vértesi, R. K. Choudhury, David D'Enterria, C. Pinkenburg, D. Winter, Eva Haslum, D. Yu Peressounko, K. Sakashita, Norio Saito, John Hill, B. Lenzi, M. Virius, S. Zhou, Takahiro Nakamura, D. Watanabe, G. R. Young, B. S. Chang, Christine Angela Aidala, J. Klay, J. S. Bok, Jun Kikuchi, D. McGlinchey, Hideki Hamagaki, K. Aoki, A. Baldisseri, O. Drapier, Frank Ellinghaus, Tamas Ferenc Csorgo, G. David, J. L. Nagle, Toru Sugitate, M. D. Malik, Xingguo Li, M. Stepanov, G. Roche, E. R. Kinney, Y. J. Mao, R. P. Pisani, Jason Kamin, A. Kiss, Tsutomu Mibe, M. A. L. Leite, C. H. Chen, Y. Onuki, E. Vznuzdaev, Susumu Oda, Henner Buesching, Steve Edwards, S. P. Stoll, S. D. Rolnick, F. Matathias, A. Durum, J. E. Frantz, S. P. Sorensen, J. H. Kang, J. S. Haggerty, Jan Rak, O. Chvala, S. S.E. Rosendahl, R. Lacey, Kensuke Homma, E. Richardson, François Fleuret, G. Bunce, D. P. Morrison, R. Granier de Cassagnac, S. Campbell, J. L. Charvet, P. Constantin, Catherine Micaela Silvestre, Seong H. Kim, A. Hadj Henni, A. Adare, Marcus Hohlmann, K. Yamaura, J. G. Lajoie, A. Churyn, S. Chernichenko, V. E. Semenov, K. I. Hahn, B. Bassalleck, L. A. Linden Levy, P. Mikeš, D. Jouan, Beomkyu Kim, K. Boyle, Wei Xie, I. J. Choi, A. Kravitz, R. Belmont, M. Kurosawa, J. S. Kapustinsky, M. Konno, V. Babintsev, Y. S. Lai, S. Bathe, A. Enokizono, K. S. Sim, V. Dzhordzhadze, Agneta Oskarsson, Y. Kwon, Y. Berdnikov, Y. Akiba, R. Yang, M. Mishra, S. Nagamiya, P. Chung, S. Taneja, J. Imrek, Vaclav Vrba, Klaus Johannes Reygers, Tatsuya Chujo, Rui Wei, K. Imai, A. Datta, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, T. Sato, D. Isenhower, A. Toia, L. Mašek, T. Niita, R. S. Towell, I. Garishvili, F. Wei, C. Y. Chi, J. Jin, E. M. Takagui, C. Baumann, S. Kametani, C. P. Singh, B. M. Johnson, R. J. Petti, A. Isupov, C. Suire, J. Sziklai, Brian Cole, K. N. Barish, S. Nam, S. Sano, M. L. Brooks, B. Love, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, I. Danchev, X. He, Y. Aramaki, V. Peresedov, J. Koster, S. Batsouli, H. Masui, A. K. Dubey, A. A. Bickley, A. Deshpande, Y. Watanabe, I. Younus, A. Soldatov, M. Naglis, Masayasu Ishihara, F. Staley, D. Kawall, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, K. Sedgwick, Maya Hachiya Shimomura, Y. I. Makdisi, M. J. Tannenbaum, H. Torii, A. Kim, D. Mukhopadhyay, S. Rembeczki, Alice Mignerey, L. D'Orazio, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, S. Huang, and W. Holzmann
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Hadron, General Physics and Astronomy, Elementary particle, Quarkonium, Nuclear matter, 7. Clean energy, 01 natural sciences, Gluon, Nuclear physics, 0103 physical sciences, Bound state, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: We present measurements of J/psi yields in d + Au collisions at root S-NN = 200 GeV recorded by the PHENIX experiment and compare them with yields in p + p collisions at the same energy per nucleon-nucleon collision. The measurements cover a large kinematic range in J/psi rapidity (-2.2 < y < 2.4) with high statistical precision and are compared with two theoretical models: one with nuclear shadowing combined with final state breakup and one with coherent gluon saturation effects. In order to remove model dependent systematic uncertainties we also compare the data to a simple geometric model. The forward rapidity data are inconsistent with nuclear modifications that are linear or exponential in the density weighted longitudinal thickness, such as those from the final state breakup of the bound state.
Published: 2011

29. Observation of direct-photon collective flow in Au + Au collisions at √s(NN)] = 200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E P, Hartouni, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E, Kim, E J, Kim, S H, Kim, Y J, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, C, Klein-Boesing, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, X, Li, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: The second Fourier component v(2) of the azimuthal anisotropy with respect to the reaction plane is measured for direct photons at midrapidity and transverse momentum (p(T)) of 1-12 GeV/c in Au + Au collisions at √s(NN)] = 200 GeV. Previous measurements of this quantity for hadrons with p(T)6 GeV/c indicate that the medium behaves like a nearly perfect fluid, while for p(T)6 GeV/c a reduced anisotropy is interpreted in terms of a path-length dependence for parton energy loss. In this measurement with the PHENIX detector at the Relativistic Heavy Ion Collider we find that for p(T)4 GeV/c the anisotropy for direct photons is consistent with zero, which is as expected if the dominant source of direct photons is initial hard scattering. However, in the p(T)4 GeV/c region dominated by thermal photons, we find a substantial direct-photon v(2) comparable to that of hadrons, whereas model calculations for thermal photons in this kinematic region underpredict the observed v(2).
Published: 2011

30. Suppression of back-to-back hadron pairs at forward rapidity in d+Au collisions at √s(NN)=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, A, Angerami, K, Aoki, N, Apadula, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, J H, Bhom, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa del Valle, M, Connors, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, M K, Dayananda, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, L, D'Orazio, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, G, Grim, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, D, Ivanischev, Y, Iwanaga, B V, Jacak, J, Jia, X, Jiang, J, Jin, B M, Johnson, T, Jones, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, A, Kim, B I, Kim, D J, Kim, E J, Kim, Y-J, Kim, E, Kinney, Á, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, X, Li, P, Lichtenwalner, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, J T, Mitchell, A K, Mohanty, H J, Moon, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, T, Murakami, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, S, Nam, J, Newby, M, Nguyen, M, Nihashi, R, Nouicer, A S, Nyanin, C, Oakley, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, R, Petti, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, H, Themann, D, Thomas, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, S, Zhou, and L, Zolin
Abstract: Back-to-back hadron pair yields in d+Au and p+p collisions at √s(NN)=200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity |η|0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0η3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case, the yield of back-to-back hadron pairs in d+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to p+p collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with a low fraction x of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, p(T), and η points to cold nuclear matter effects arising at high parton densities.
Published: 2011

31. Measurements of higher order flow harmonics in Au+Au collisions at √s(NN)=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E P, Hartouni, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E, Kim, E J, Kim, S H, Kim, Y J, Kim, E, Kinney, K, Kiriluk, Á, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, X, Li, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: Flow coefficients ν(n) for n=2, 3, 4, characterizing the anisotropic collective flow in Au+Au collisions at √s(NN)=200 GeV, are measured relative to event planes Ψ(n), determined at large rapidity. We report ν(n) as a function of transverse momentum and collision centrality, and study the correlations among the event planes of different order n. The ν(n) are well described by hydrodynamic models which employ a Glauber Monte Carlo initial state geometry with fluctuations, providing additional constraining power on the interplay between initial conditions and the effects of viscosity as the system evolves. This new constraint can serve to improve the precision of the extracted shear viscosity to entropy density ratio η/s.
Published: 2011

32. Cross Section and Parity-Violating Spin Asymmetries ofW±Boson Production in Polarizedp+pCollisions ats=500 GeV

Author: M. Kasai, A. Deshpande, B. Meredith, Alice Mignerey, John Hill, Toru Sugitate, L. D'Orazio, M. Sarsour, Mate Csanad, François Fleuret, D. Watanabe, A. Iordanova, T. Ichihara, Takahiro Fusayasu, Alexander Malakhov, D. Silvermyr, L. S. Zolin, A. Yanovich, Takao Sakaguchi, M. Mendoza, S. N. White, E. Vznuzdaev, Y. J. Kwon, Deepa Thomas, Marisilvia Donadelli, V. Bumazhnov, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, D. Kotov, Dmitry Blau, E. J. Desmond, M. Ouchida, N. Means, A. D. Frawley, M. Nihashi, Alexander Milov, I. Nakagawa, Atsushi Takahara, Aaron Angerami, Hongfang Liu, R. Tanabe, Young-Ki Kim, T. Engelmore, T. Murakami, D. E. Fields, B. Love, J. S. Kang, K. A. Drees, S. Huang, Y. L. Yamaguchi, Y. Watanabe, Jason Kamin, M. Togawa, E. Vazquez-Zambrano, W. A. Zajc, M. Rosati, K. B. Lee, B. V. Jacak, R. S. Towell, I. Ravinovich, Y. Ikeda, V. Baublis, I. Younus, S. P. Stoll, A. Denisov, C. Harper, E. J. Mannel, E. R. Kinney, V. Cianciolo, T. Kempel, D. P. Morrison, A. G. Litvinenko, W. Holzmann, S. Kaneti, H. Pei, S. Campbell, S. Sawada, Y. Miyachi, Y. Tsuchimoto, Sergey Fokin, Y. Iwanaga, B. H. Kang, I. Garishvili, T. Csörgő, F. Wei, R. P. Pisani, M. Bai, V. S. Pantuev, J. Ying, A. Franz, S. S.E. Rosendahl, G. Bunce, Rushan Han, A. Dion, M. I. Nagy, Maya Hachiya Shimomura, R. S. Hollis, I. E. Yushmanov, M. Kurosawa, H. W. Van Hecke, A. Enokizono, H. Al-Ta'Ani, Tatsuya Chujo, B. Azmoun, A. Král, Jiangyong Jia, Y. Goto, Y. I. Makdisi, R. Akimoto, Johannes Peter Wessels, E. C. Aschenauer, M. McCumber, I. Tserruya, J. Hamblen, Vladimir Samsonov, M. Naglis, R. Seto, Senta Greene, D. Roach, D. Jouan, C. L. Woody, A. Berdnikov, Yu. Efremenko, Prashant Shukla, K. V. Dharmawardane, P. L. McGaughey, K. M. Kijima, H. Qu, V. Singh, M. Gonin, C. Pinkenburg, A. T. Basye, A. Kiss, S. F. Pate, A. Caringi, C. Y. Chi, Hideki Hamagaki, K. Aoki, G. David, Ke. Nakamura, K. S. Sim, B. Fadem, E. O'Brien, M. Chiu, K. Hashimoto, A. Datta, D. Kleinjan, Eric Appelt, M. J. Tannenbaum, K. R. Andrews, R. A. Soltz, K. Okada, Beomkyu Kim, O. Drapier, B. Sahlmueller, Y. Fukao, Henner Buesching, H. Iinuma, C. A. Ogilvie, Xingguo Li, Zhiying You, R. Yang, R. Bennett, R. Armendariz, Kisung Lee, T. K. Hemmick, Ajit Kumar Mohanty, Y. J. Mao, H. Torii, M. Grosse Perdekamp, H. En'yo, Masayasu Ishihara, J. Hanks, K. N. Barish, Sung Keun Park, M. J. Leitch, T. Hester, J. M. Durham, M. E. Connors, Yasuo Miake, K. Watanabe, Yosuke Watanabe, T. A. Shibata, C. L. Silva, S. P. Sorensen, S. Taneja, K. Shoji, T. Sato, A. V. Kazantsev, E. Tennant, L. Guo, J. L. Nagle, P. Castera, Alexei Khanzadeev, M. Finger, S. Dairaku, N. N. Ajitanand, X. Gong, L. Kochenda, M. Issah, A. Glenn, I. V. Sourikova, K. Imai, E. Stenlund, S. Sano, J. H. Kang, J. S. Haggerty, S. R. Lee, J. B. Choi, O. Chvala, I. J. Choi, P. W. Stankus, L. A. Linden Levy, D. Kawall, Eunja Kim, M. Savastio, L. Tomášek, S. Motschwiller, H. A. Gustafsson, D. Isenhower, Jan Rak, R. Lacey, Takahiro Nakamura, V. Papavassiliou, K. Utsunomiya, Jen-Chieh Peng, R. Pak, J. G. Lajoie, T. Jones, Ryugo S. Hayano, R. Granier de Cassagnac, Peter Christiansen, H. Themann, M. L. Brooks, Y. Riabov, A. Adare, D. McGlinchey, Agneta Oskarsson, D. Winter, J. E. Frantz, X. He, Kenta Shigaki, M. Virius, Charles Maguire, D. Yu Peressounko, Y. Berdnikov, Y. Akiba, C. McKinney, M. Nguyen, Inkyu Park, Y. Aramaki, V. Peresedov, N. Grau, Xiong Wang, Robert Vertesi, E. M. Takagui, Byoungchoo Park, Kazuyoshi Kurita, Taku Gunji, Z. Conesa del Valle, T. V. Moukhanova, O. Dietzsch, J. Murata, C. Baumann, K. Karatsu, A. Durum, J. Ben-Benjamin, D. Hornback, S. Nagamiya, Viktor Riabov, Gerd Joachim Kunde, Dong Jo Kim, J. Koster, C. Oakley, T. C. Awes, Kyoichiro Ozawa, A. Drees, J. S. Bok, Y. Hori, Anne Marie Sickles, C. P. Singh, A. S. Nyanin, Catherine Micaela Silvestre, Vaclav Vrba, Klaus Johannes Reygers, Y. S. Lai, Rui Wei, B. M. Johnson, Motoi Inaba, H. Masui, S. H. Lee, S. Butsyk, I. Shein, R. J. Petti, A. Veicht, R. M. Wright, K. Sedgwick, A. Isupov, Rachid Nouicer, Kiyoshi Tanida, S. Zhou, M. Oka, A. N. Zelenski, M. Proissl, C. H. Chen, G. R. Young, A. Sukhanov, J. Sziklai, H. Pereira, Minghui Liu, S. D. Rolnick, A. Manion, E. Kistenev, J. S. Yoo, Brian Cole, M. K. Dayananda, Julia Velkovska, Y. Morino, Kenneth Francis Read, M. Wysocki, P. Kline, B. Bannier, P. Lichtenwalner, T. Sodre, Jongmin Lee, J. Sun, S. Yokkaichi, Atsushi Taketani, Y. Tanaka, D. Lynch, Martin Purschke, H. J. Moon, D. Broxmeyer, A. Morreale, R. K. Choudhury, K. S. Joo, N. Apadula, A. Vossen, S. Esumi, D. Sharma, J. T. Mitchell, R. Ichimiya, R. Seidl, Vladislav Manko, M. Slunečka, C. Vale, S. Afanasiev, Christine Angela Aidala, S. Bathe, Kensuke Homma, E. Richardson, J. Newby, G. Roche, K. I. Hahn, B. Bassalleck, M. Konno, Y. Nakamiya, Y. J. Kim, A. Taranenko, Kazushi Miki, T. Horaguchi, Brajesh K. Singh, S. Tarafdar, Eva Haslum, B. Komkov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, H. H. Shim, S. H. Lim, R. Belmont, J. S. Kapustinsky, V. Babintsev, X. Jiang, M. Tomášek, G. S. Kyle, James Alexander, Byung-Sik Hong, A. Bazilevsky, Alexandre Lebedev, and D. M. Lee
Subjects: Quark, Physics, Particle physics, Antiparticle, 010308 nuclear & particles physics, General Physics and Astronomy, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, Fermion, 01 natural sciences, 7. Clean energy, Nuclear physics, Positron, Antimatter, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Boson, Lepton
Abstract: Large parity-violating longitudinal single-spin asymmetries A(L)(e+) = 0.86(-0.14)(+0.30) and Ae(L)(e-) = 0.88(-0.71)(+0.12) are observed for inclusive high transverse momentum electrons and positrons in polarized p + p collisions at a center-of-mass energy of root s = 500 GeV with the PHENIX detector at RHIC. These e(+/-) come mainly from the decay of W-+/- and Z(0) bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W-+/- to the light quarks. The observed electron and positron yields were used to estimate W-+/- boson production cross sections for the e(+/-) channels of sigma(pp -> W+X) X BR(W+ -> e(+) nu(e)) = 144.1 +/- 21.2(stat)(-10.3)(+3.4)(syst) +/- 21.6(norm) pb, and sigma(pp -> W-X) X BR(W- -> e(-) (nu) over bar (e)) = 3.17 +/- 12.1(stat)(-8.2)(+10.1)(syst) +/- 4.8(norm) pb.
Published: 2011

33. Azimuthal Anisotropy ofπ0Production inAu+AuCollisions atsNN=200 GeV: Path-Length Dependence of Jet Quenching and the Role of Initial Geometry

Author: L. Tomášek, V. S. Pantuev, T. Horaguchi, Charles Maguire, Kiyoshi Tanida, E. Kistenev, K. Okada, B. Sahlmueller, H. En'yo, M. J. Leitch, Y. Tanaka, K. A. Drees, S. Hegyi, L. Baksay, B. Love, J. P. Wood, K. Das, E. P. Hartouni, A. G. Litvinenko, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, O. Drapier, Frank Ellinghaus, M. Issah, T. Kempel, Dong-Hun Kim, E. R. Kinney, B. Azmoun, A. Král, F. Matathias, Kensuke Homma, E. Richardson, Maya Hachiya Shimomura, K. Watanabe, D. P. Morrison, S. Campbell, Y. I. Makdisi, S. Bathe, Y. J. Kwon, Agneta Oskarsson, R. A. Soltz, S. Afanasiev, K. Shoji, A. Kozlov, Tatsuya Chujo, P. Constantin, R. Seto, M. Grosse Perdekamp, Y. Berdnikov, M. E. Connors, Y. Akiba, M. Ouchida, M. Mishra, S. Nagamiya, P. W. Stankus, M. J. Tannenbaum, N. Means, D. Kotchetkov, J. Newby, H. Torii, K. I. Hahn, B. Bassalleck, M. Oka, S. Dairaku, A. Deshpande, Vaclav Vrba, Klaus Johannes Reygers, D. Hornback, Rui Wei, Peter Christiansen, T. L. Thomas, M. Rosati, M. Heffner, Alice Mignerey, A. Dion, Taku Gunji, H. Gong, I. Danchev, J. Seele, J. Jin, D. Winter, D. Yu Peressounko, M. Konno, Ryugo S. Hayano, P. Tarján, E. M. Takagui, A. Taranenko, F. Kajihara, Y. Riabov, M. Virius, Kenta Shigaki, Kazushi Miki, Takao Sakaguchi, Brajesh K. Singh, M. Nguyen, Atsushi Taketani, A. S. Nyanin, K. N. Barish, A. D. Frawley, Rachid Nouicer, A. A. Vinogradov, C. H. Chen, Y. Watanabe, Y. Ikeda, A. Enokizono, P. Liebing, S. Huang, H. Qu, Senta Greene, C. L. Woody, A. Berdnikov, S. Tarafdar, S. Butsyk, E. J. Mannel, R. Pak, W. Holzmann, Jiangyong Jia, Y. Goto, A. Glenn, A. T. Basye, I. Younus, R. S. Towell, S. Zhou, I. Garishvili, Hideki Hamagaki, K. Aoki, F. Wei, B. Fadem, E. O'Brien, Eva Haslum, B. Lenzi, G. David, N. Kamihara, S. Sano, Kyeongpil Lee, I. V. Sourikova, S. D. Rolnick, J. Ide, C. Pinkenburg, D. Kawall, C. Y. Chi, Ajit Kumar Mohanty, T. A. Shibata, Kazuyoshi Kurita, G. Roche, T. Sato, C. Baumann, S. Kametani, H. Themann, T. Ichihara, C. P. Singh, B. M. Johnson, M. L. Brooks, A. Drees, Jongmin Lee, O. Dietzsch, M. Proissl, A. Isupov, J. Sziklai, E. T. Atomssa, H. Valle, Marisilvia Donadelli, V. Bumazhnov, D. Lynch, X. He, Andry Malala Rakotozafindrabe, Brian Cole, J. Murata, Takahiro Fusayasu, Dipanwita Dutta, M. Gonin, D. S. Jumper, Y. Aramaki, V. Peresedov, T. Dahms, R. Tanabe, Alexander Malakhov, Gerd Joachim Kunde, J. Koster, Julia Velkovska, D. Silvermyr, I. Shein, A. Yu. Semenov, A. Sukhanov, Rushan Han, H. Masui, L. S. Zolin, H. Pereira, Vladimir Samsonov, Y. Morino, W. J. Park, Christopher Rosen, A. A. Bickley, K. Sedgwick, I. Ravinovich, Tamas Ferenc Csorgo, A. Yanovich, M. Bai, J. L. Nagle, S. Yokkaichi, K. B. Lee, S. N. White, A. K. Purwar, K. Fujiwara, Zhiying You, Y. J. Mao, R. Bennett, M. Kawashima, Y. L. Yamaguchi, M. Finger, J. H. Kang, Zvi Hirsh Citron, J. S. Haggerty, Mate Csanad, Hongfang Liu, D. E. Fields, K. Nakano, B. V. Jacak, W. E. Sondheim, E. Leitner, M. Naglis, D. Ivanischev, D. Roach, K. M. Kijima, C. L. Silva, P. A. Rukoyatkin, Y. Onuki, Y. S. Lai, M. McCumber, H. W. Van Hecke, B. Meredith, Xingguo Li, S. P. Sorensen, M. Chiu, A. Kiss, Masayasu Ishihara, John Hill, Henner Buesching, Steve Edwards, Toru Sugitate, Jan Rak, R. Lacey, O. Chvala, Seong H. Kim, J. Hanks, Sung Keun Park, N. N. Ajitanand, J. T. Mitchell, C. A. Ogilvie, Kisung Lee, T. K. Hemmick, Yasuo Miake, R. Seidl, J. G. Lajoie, Marcus Hohlmann, I. J. Choi, A. Kravitz, François Fleuret, R. P. Pisani, Takahiro Nakamura, L. Kochenda, Vladislav Manko, L. A. Linden Levy, M. Slunečka, R. Granier de Cassagnac, Susumu Oda, K. Sakashita, A. Durum, Y. Fukao, A. Adare, S. Belikov, Catherine Micaela Silvestre, K. Yamaura, Jason Kamin, T. Hester, S. P. Stoll, Martin Purschke, S. Sawada, C. Vale, J. Ying, S. S.E. Rosendahl, G. Bunce, A. Franz, N. A. Sparks, Christine Angela Aidala, Y. Nakamiya, D. Jouan, A. Morreale, Z. Fraenkel, R. K. Choudhury, G. Baksay, K. S. Joo, N. Grau, M. Wysocki, D. Sharma, R. Ichimiya, K. S. Sim, Motoi Inaba, R. M. Wright, C. M. Camacho, Prashant Shukla, S. F. Pate, Y. J. Kim, H. Al-Bataineh, V. Papavassiliou, R. Yang, K. Imai, K. Karatsu, Anne Marie Sickles, G. R. Young, B. Komkov, Norio Saito, Minghui Liu, M. A. L. Leite, Kenneth Francis Read, R. Belmont, J. S. Kapustinsky, A. V. Kazantsev, V. Babintsev, G. S. Kyle, James Alexander, R. Averbeck, Byung-Sik Hong, P. Mikeš, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, K. Kiriluk, E. H. Kim, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Tadaaki Isobe, P. L. McGaughey, Jen-Chieh Peng, R. Vértesi, Inkyu Park, J. E. Frantz, Xiong Wang, Alexei Khanzadeev, E. Stenlund, Dong Jo Kim, J. Hamblen, J. M. Durham, T. V. Moukhanova, E. J. Desmond, M. Togawa, E. Vazquez-Zambrano, J. Park, A. Veicht, Y. Tsuchimoto, I. Tserruya, Yu. Efremenko, I. E. Yushmanov, V. Singh, H. A. Gustafsson, Johannes Peter Wessels, C. Zhang, Eunja Kim, Beomkyu Kim, K. Boyle, Wei Xie, M. I. Nagy, D. Watanabe, M. D. Malik, E. Vznuzdaev, P. Ružička, Viktor Riabov, S. Esumi, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, D. Isenhower, A. Toia, Sergey Fokin, M. Kurosawa, P. Chung, A. Datta, and H. Pei
Subjects: Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Elliptic flow, Hadron, General Physics and Astronomy, Perturbative QCD, Elementary particle, 01 natural sciences, Gluon, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Anisotropy, Jet quenching
Abstract: We have measured the azimuthal anisotropy of pi(0) production for 1 < p(T) < 18 GeV/c for Au + Au collisions at root s(NN) = 200 GeV. The observed anisotropy shows a gradual decrease for 3 less than or similar to p(T) less than or similar to 7-10 GeV/c, but remains positive beyond 10 GeV/c. The magnitude of this anisotropy is underpredicted, up to at least similar to 10 GeV/c, by current perturbative QCD (PQCD) energy-loss model calculations. An estimate of the increase in anisotropy expected from initial-geometry modification due to gluon saturation effects and fluctuations is insufficient to account for this discrepancy. Calculations that implement a path-length dependence steeper than what is implied by current PQCD energy-loss models show reasonable agreement with the data.
Published: 2010

34. Cross section and parity-violating spin asymmetries of W± boson production in polarized p + p collisions at sqrt[s] = 500 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, R, Akimoto, J, Alexander, H, Al-Ta'ani, K R, Andrews, A, Angerami, K, Aoki, N, Apadula, E, Appelt, Y, Aramaki, R, Armendariz, E C, Aschenauer, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, B, Bannier, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, R, Belmont, J, Ben-Benjamin, R, Bennett, A, Berdnikov, Y, Berdnikov, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, D, Broxmeyer, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, P, Castera, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa del Valle, M, Connors, M, Csanád, T, Csörgo, S, Dairaku, A, Datta, G, David, M K, Dayananda, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, M, Donadelli, L, D'Orazio, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, Y V, Efremenko, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, X, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, L, Guo, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, J, Hanks, R, Han, C, Harper, K, Hashimoto, E, Haslum, R, Hayano, T K, Hemmick, T, Hester, X, He, J C, Hill, R S, Hollis, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, Y, Hori, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, H, Iinuma, Y, Ikeda, K, Imai, M, Inaba, A, Iordanova, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, D, Ivanischev, Y, Iwanaga, B V, Jacak, J, Jia, X, Jiang, B M, Johnson, T, Jones, K S, Joo, D, Jouan, J, Kamin, S, Kaneti, B H, Kang, J H, Kang, J S, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D J, Kim, E J, Kim, Y-J, Kim, Y K, Kim, E, Kinney, Á, Kiss, E, Kistenev, D, Kleinjan, P, Kline, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotov, A, Král, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, S H, Lee, S R, Lee, M J, Leitch, M A L, Leite, P, Lichtenwalner, S H, Lim, L A, Linden Levy, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, A, Manion, V I, Manko, E, Mannel, Y, Mao, H, Masui, M, McCumber, P L, McGaughey, D, McGlinchey, C, McKinney, N, Means, M, Mendoza, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, J T, Mitchell, Y, Miyachi, A K, Mohanty, H J, Moon, Y, Morino, A, Morreale, D P, Morrison, S, Motschwiller, T V, Moukhanova, T, Murakami, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, M, Nihashi, R, Nouicer, A S, Nyanin, C, Oakley, E, O'Brien, C A, Ogilvie, K, Okada, M, Oka, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, B H, Park, I H, Park, S K, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, R, Petti, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, S S E, Rosendahl, P, Rukoyatkin, B, Sahlmueller, N, Saito, T, Sakaguchi, V, Samsonov, S, Sano, M, Sarsour, T, Sato, M, Savastio, S, Sawada, K, Sedgwick, R, Seidl, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, H H, Shim, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, T, Sodre, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sun, J, Sziklai, E M, Takagui, A, Takahara, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, E, Tennant, H, Themann, D, Thomas, M, Togawa, L, Tomášek, M, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, K, Utsunomiya, C, Vale, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, A, Vossen, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, Y S, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, Y L, Yamaguchi, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, J S, Yoo, G R, Young, I, Younus, Z, You, I E, Yushmanov, W A, Zajc, A, Zelenski, S, Zhou, and L, Zolin
Abstract: Large parity-violating longitudinal single-spin asymmetries A(L)(e+) = -0.86(-0.14) (+0.30) and A(L)(e-) = 0.88(-0.71) (+0.12) are observed for inclusive high transverse momentum electrons and positrons in polarized p+p collisions at a center-of-mass energy of sqrt[s] = 500 GeV with the PHENIX detector at RHIC. These e± come mainly from the decay of W± and Z0 bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W± to the light quarks. The observed electron and positron yields were used to estimate W± boson production cross sections for the e± channels of σ(pp → W+ X) × BR(W+ → e+ ν(e)) = 144.1 ± 21.2(stat)(-10.3) (+3.4) (syst) ± 21.6(norm) pb, and σ(pp → W- X) × BR(W- → e- ν[over ¯](e)) = 31.7 ± 12.1(stat)(-8.2) (+10.1) (syst) ± 4.8(norm) pb.
Published: 2010

35. Elliptic and Hexadecapole Flow of Charged Hadrons inAu+AuCollisions atsNN=200 GeV

Author: D. Sharma, R. Ichimiya, B. Azmoun, A. Král, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, P. Liebing, Martin Purschke, Mate Csanad, A. Morreale, Z. Fraenkel, C. M. Camacho, M. Rosati, R. K. Choudhury, K. Karatsu, S. Dairaku, E. H. Kim, Alice Mignerey, Y. Nakamiya, Sung Keun Park, Prashant Shukla, L. Tomášek, V. S. Pantuev, R. A. Soltz, S. F. Pate, Marisilvia Donadelli, M. Gonin, Anne Marie Sickles, V. Bumazhnov, Y. J. Mao, B. Meredith, N. N. Ajitanand, S. Esumi, H. Al-Bataineh, R. Pak, M. Grosse Perdekamp, M. E. Connors, E. J. Desmond, A. A. Vinogradov, Minghui Liu, A. Sukhanov, H. Pereira, S. Tarafdar, Y. Tanaka, W. A. Zajc, Andry Malala Rakotozafindrabe, G. Baksay, M. Togawa, E. Vazquez-Zambrano, N. Kamihara, G. R. Young, S. Bathe, H. Qu, K. A. Drees, V. Baublis, A. Denisov, Takao Sakaguchi, R. P. Pisani, V. Cianciolo, K. Okada, Y. Morino, Jiangyong Jia, Y. Goto, Kenneth Francis Read, S. Hegyi, Eva Haslum, B. Lenzi, B. Sahlmueller, H. En'yo, J. H. Kang, John Hill, V. Papavassiliou, K. N. Barish, M. Virius, Y. J. Kim, Agneta Oskarsson, M. J. Leitch, J. Park, Y. Onuki, J. S. Haggerty, Sergey Fokin, Hideki Hamagaki, K. Aoki, R. Tanabe, Kazuyoshi Kurita, K. Tanida, S. Afanasiev, G. David, J. T. Mitchell, A. D. Frawley, Jan Rak, Takahiro Nakamura, Peter Christiansen, A. Drees, M. Kurosawa, Y. Fukao, R. Seidl, Tadaaki Isobe, B. Komkov, R. Lacey, J. Newby, D. Winter, L. Baksay, D. Yu Peressounko, Y. J. Kwon, T. Hester, Y. Berdnikov, Y. Akiba, Toru Sugitate, R. Granier de Cassagnac, A. Adare, Vladislav Manko, M. Slunečka, Y. Tsuchimoto, P. Tarján, Johannes Peter Wessels, M. Ouchida, S. P. Sorensen, Charles Maguire, S. Huang, C. H. Chen, M. Mishra, Norio Saito, S. Nagamiya, N. A. Sparks, K. Sakashita, H. A. Gustafsson, S. Belikov, P. L. McGaughey, N. Means, M. A. L. Leite, P. Chung, K. Das, M. Wysocki, E. P. Hartouni, Susumu Oda, D. Hornback, D. Kotchetkov, O. Chvala, C. Zhang, M. Heffner, I. E. Yushmanov, S. Sano, W. Holzmann, Vaclav Vrba, Klaus Johannes Reygers, A. Durum, Maya Hachiya Shimomura, Seong H. Kim, M. Issah, N. Grau, Jason Kamin, A. Glenn, E. Kistenev, P. Ružička, K. S. Sim, C. Vale, A. Taranenko, T. Kempel, Dong-Hun Kim, Rui Wei, Senta Greene, Alexei Khanzadeev, Y. I. Makdisi, J. G. Lajoie, Beomkyu Kim, K. Boyle, Christine Angela Aidala, S. P. Stoll, I. Ravinovich, Kazushi Miki, A. V. Kazantsev, Catherine Micaela Silvestre, A. Datta, E. Stenlund, Rushan Han, A. T. Basye, Wei Xie, Motoi Inaba, Brajesh K. Singh, K. Yamaura, R. M. Wright, Viktor Riabov, R. Belmont, J. S. Kapustinsky, S. Sawada, V. Babintsev, H. Pei, A. K. Purwar, B. Fadem, K. Fujiwara, E. O'Brien, Vladimir Samsonov, I. J. Choi, A. Kravitz, S. S.E. Rosendahl, G. Bunce, M. Bai, O. Dietzsch, J. Ying, A. Franz, P. Mikeš, G. S. Kyle, T. Horaguchi, C. L. Woody, A. Berdnikov, K. B. Lee, F. Matathias, François Fleuret, Y. S. Lai, K. Watanabe, M. Proissl, E. T. Atomssa, H. Valle, A. Yu. Semenov, Kensuke Homma, E. Richardson, Y. L. Yamaguchi, Ajit Kumar Mohanty, James Alexander, T. A. Shibata, M. J. Tannenbaum, Dipanwita Dutta, P. Constantin, H. Torii, K. Shoji, T. Sato, R. Averbeck, Byung-Sik Hong, K. I. Hahn, A. Bazilevsky, E. Leitner, Hongfang Liu, D. Jouan, D. E. Fields, T. C. Awes, Kyoichiro Ozawa, T. Liška, B. Bassalleck, Julia Velkovska, B. V. Jacak, D. Roach, Philippe Rosnet, J. S. Bok, M. Chiu, M. Konno, J. Hamblen, P. W. Stankus, J. M. Durham, Tamas Ferenc Csorgo, K. M. Kijima, S. N. White, Alexandre Lebedev, C. A. Ogilvie, M. McCumber, D. M. Lee, Zhiying You, M. I. Nagy, R. Bennett, T. K. Hemmick, H. W. Van Hecke, I. V. Sourikova, J. L. Nagle, M. Kawashima, T. L. Thomas, D. Isenhower, A. Toia, D. Watanabe, K. Kiriluk, Yasuo Miake, M. D. Malik, S. Yokkaichi, Xingguo Li, T. V. Moukhanova, E. Vznuzdaev, M. Finger, L. Kochenda, M. L. Brooks, Y. Ikeda, Ryugo S. Hayano, Jongmin Lee, E. J. Mannel, Y. Riabov, A. Kiss, R. Vértesi, J. Hanks, Kenta Shigaki, M. Nguyen, D. Lynch, C. Pinkenburg, Zvi Hirsh Citron, Henner Buesching, Taku Gunji, H. Gong, J. Seele, Steve Edwards, A. S. Nyanin, G. Roche, F. Kajihara, Rachid Nouicer, D. S. Jumper, K. S. Lee, T. Dahms, K. Nakano, X. He, Marcus Hohlmann, L. A. Linden Levy, S. Butsyk, Y. Aramaki, V. Peresedov, W. E. Sondheim, S. Zhou, D. Ivanischev, S. D. Rolnick, J. Koster, J. E. Frantz, H. Masui, A. A. Bickley, B. Love, P. A. Rukoyatkin, T. Ichihara, A. G. Litvinenko, Takahiro Fusayasu, Alexander Malakhov, A. Kozlov, R. Seto, D. Silvermyr, L. S. Zolin, W. J. Park, Christopher Rosen, I. Danchev, A. Yanovich, R. S. Towell, I. Garishvili, F. Wei, Kyeongpil Lee, J. Ide, C. Y. Chi, C. Baumann, S. Kametani, C. P. Singh, B. M. Johnson, A. Isupov, J. Sziklai, Brian Cole, J. Jin, E. M. Takagui, D. Kawall, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, K. Sedgwick, A. Deshpande, Y. Watanabe, I. Younus, Jen-Chieh Peng, M. Naglis, C. L. Silva, Masayasu Ishihara, Inkyu Park, Xiong Wang, Dong Jo Kim, A. Veicht, I. Tserruya, Yu. Efremenko, V. Singh, R. Yang, K. Imai, Eunja Kim, J. P. Wood, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, O. Drapier, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, S. Campbell, Tatsuya Chujo, and K. S. Joo
Subjects: Physics, Nuclear reaction, 010308 nuclear & particles physics, Elliptic flow, Hadron, General Physics and Astronomy, Elementary particle, Fermion, 01 natural sciences, Charged particle, Nuclear physics, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: Differential measurements of the elliptic (upsilon(2)) and hexadecapole (upsilon(4)) Fourier flow coefficients are reported for charged hadrons as a function of transverse momentum (p(T)) and collision centrality or number of participant nucleons (N-part) for Au + Au collisions at root s(NN) = 200 GeV/ The upsilon(2,4) measurements at pseudorapidity vertical bar eta vertical bar
Published: 2010

36. Azimuthal anisotropy of π⁰ production in Au+Au collisions at sqrt((s)NN)=200 GeV: path-length dependence of jet quenching and the role of initial geometry

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, J, Hanks, R, Han, E P, Hartouni, E, Haslum, R, Hayano, M, Heffner, S, Hegyi, T K, Hemmick, T, Hester, X, He, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E J, Kim, E, Kim, S H, Kim, Y J, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, K, Okada, M, Oka, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, G R, Young, I, Younus, Z, You, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: We have measured the azimuthal anisotropy of π⁰ production for 1p(T)18 GeV/c for Au+Au collisions at sqrt((s)NN)=200 GeV. The observed anisotropy shows a gradual decrease for 3≲p(T)≲7-10 GeV/c, but remains positive beyond 10 GeV/c. The magnitude of this anisotropy is underpredicted, up to at least ∼10 GeV/c, by current perturbative QCD (PQCD) energy-loss model calculations. An estimate of the increase in anisotropy expected from initial-geometry modification due to gluon saturation effects and fluctuations is insufficient to account for this discrepancy. Calculations that implement a path-length dependence steeper than what is implied by current PQCD energy-loss models show reasonable agreement with the data.
Published: 2010

37. Band Structure of the Heavily-Electron-Doped FeAs-BasedBa(Fe,Co)2As2Superconductor Suppresses Antiferromagnetic Correlations

Author: Masashi Arita, R. Morinaga, T. Sato, Y. Wakisaka, Takashi Mizokawa, Takaaki Sudayama, Masaki Taniguchi, Kou Takubo, and Hirofumi Namatame
Subjects: Superconductivity, Physics, Condensed matter physics, Fermi level, Center (category theory), General Physics and Astronomy, Fermi surface, Electronic structure, Electron, symbols.namesake, Condensed Matter::Superconductivity, symbols, Antiferromagnetism, Condensed Matter::Strongly Correlated Electrons, Electronic band structure
Abstract: In the heavily-electron-doped regime of the $\mathrm{Ba}(\mathrm{Fe},\text{\hskip-0.22em}\mathrm{Co}{)}_{2}{\mathrm{As}}_{2}$ superconductor, three hole bands at the zone center are observed and two of them reach the Fermi level. The larger hole pocket at the zone center is apparently nested with the smaller electron pocket around the zone corner. However, the ($\ensuremath{\pi},\text{\hskip-0.22em}0$) Fermi surface reconstruction reported for the hole-doped case is absent in the heavily-electron-doped case. This observation shows that the apparent Fermi surface nesting alone is not enough to enhance the antiferromagnetic correlation as well as the superconducting transition temperature.
Published: 2010

38. Elliptic and hexadecapole flow of charged hadrons in Au+Au collisions at sq.rt(s(NN))=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-A, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, J, Hanks, R, Han, E P, Hartouni, E, Haslum, R, Hayano, M, Heffner, S, Hegyi, T K, Hemmick, T, Hester, X, He, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E J, Kim, E, Kim, S H, Kim, Y J, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, P, Liebing, L A, Linden Levy, T, Liska, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikes, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, K, Okada, M, Oka, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ruzicka, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunecka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomásek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, G R, Young, I, Younus, Z, You, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: Differential measurements of the elliptic (v(2)) and hexadecapole (v(4)) Fourier flow coefficients are reported for charged hadrons as a function of transverse momentum (p(T)) and collision centrality or number of participant nucleons (N(part)) for Au+Au collisions at sq.rt(s(NN))=200 GeV. The v(2,4) measurements at pseudorapidity |η|≤0.35, obtained with four separate reaction-plane detectors positioned in the range 1.0|η|3.9, show good agreement, indicating the absence of significant Δη-dependent nonflow correlations. Sizable values for v(4)(p(T)) are observed with a ratio v(4)(p(T),N(part))/v(2)(2)(p(T),N(part))≈0.8 for 50≲N(part)≲200, which is compatible with the combined effects of a finite viscosity and initial eccentricity fluctuations. For N(part)≳200 this ratio increases up to 1.7 in the most central collisions.
Published: 2010

39. Further Search for the DecayK+→π+νν¯

Author: S. Adler, M. S. Atiya, I-H. Chiang, M. V. Diwan, J. S. Frank, J. S. Haggerty, V. Jain, S. H. Kettell, T. F. Kycia, K. K. Li, L. S. Littenberg, C. Ng, R. C. Strand, C. Witzig, M. Kazumori, T. K. Komatsubara, M. Kuriki, N. Muramatsu, A. Otomo, S. Sugimoto, T. Inagaki, S. Kabe, M. Kobayashi, Y. Kuno, T. Sato, T. Shinkawa, Y. Yoshimura, Y. Kishi, T. Nakano, T. Sasaki, M. Ardebili, A. O. Bazarko, M. R. Convery, M. M. Ito, D. R. Marlow, R. A. McPherson, P. D. Meyers, F. C. Shoemaker, A. J. S. Smith, J. R. Stone, M. Aoki, P. C. Bergbusch, E. W. Blackmore, D. A. Bryman, A. Konaka, J. A. Macdonald, J. Mildenberger, T. Numao, P. Padley, J.-M. Poutissou, R. Poutissou, G. Redlinger, P. Kitching, and R. Soluk
Subjects: Physics, Antiparticle, Particle decay, Particle physics, Pion, Meson, Branching fraction, Hadron, General Physics and Astronomy, Neutrino, Lepton
Abstract: A search for additional evidence for the rare kaon decay K+-->pi(+)nunu; has been made with a new data set comparable in sensitivity to the previous exposure that produced a single event. No new events were found in the pion momentum region examined, 211 pi(+)nunu;) = 1.5(+3.4)(-1.2)x10(-10).
Published: 2000

40. Observation of Dirac cone electronic dispersion in BaFe2As2

Author: P, Richard, K, Nakayama, T, Sato, M, Neupane, Y-M, Xu, J H, Bowen, G F, Chen, J L, Luo, N L, Wang, X, Dai, Z, Fang, H, Ding, and T, Takahashi
Abstract: We performed an angle-resolved photoemission spectroscopy study of BaFe2As2, which is the parent compound of the so-called 122 phase of the iron-pnictide high-temperature superconductors. We reveal the existence of a Dirac cone in the electronic structure of this material below the spin-density-wave temperature, which is responsible for small spots of high photoemission intensity at the Fermi level. Our analysis suggests that the cone is slightly anisotropic and its apex is located very near the Fermi level, leading to tiny Fermi surface pockets. The bands forming the cone show an anisotropic leading edge gap away from the cone that suggests a nodal spin-density-wave description.
Published: 2009

41. Measurement of Bottom Versus Charm as a Function of Transverse Momentum with Electron-Hadron Correlations inp+pCollisions ats=200 GeV

Author: A. Deshpande, C. L. Woody, P. Tarján, A. Berdnikov, D. E. Fields, E. Kistenev, H. Harada, S. Dairaku, A. Yu. Semenov, B. V. Jacak, J. Gosset, Y. Watanabe, M. B. Deaton, H. Pei, Y. Tanaka, O. Zaudtke, M. McCumber, Mate Csanad, F. Staley, L. Baksay, Ajit Kumar Mohanty, C. Silvestre, I. Younus, Tae-Yeon Lee, A. Soldatov, T. A. Shibata, T. Sato, L. Tomáek, I. V. Sourikova, Senta Greene, S. Yokkaichi, Martin Purschke, M. K. Lee, M. Virius, Y. Nakamiya, G. Baksay, K. S. Sim, V. Dzhordzhadze, Y. Kwon, Saskia Mioduszewski, C. A. Ogilvie, D. Isenhower, A. Toia, D. Kotchetkov, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, E. H. Kim, R. Yang, A. T. Basye, David D'Enterria, H. Hiejima, T. K. Hemmick, M. Naglis, A. Morreale, Yasuo Miake, B. E. Norman, C. L. Silva, C. R. Cleven, C. Haegemann, Y. Inoue, B. Fadem, E. O'Brien, R. A. Soltz, M. N. Wagner, M. Rosati, Y. Fukao, N. N. Ajitanand, Y. Ikeda, A. Shevel, Z. Fraenkel, J. G. Boissevain, E. J. Mannel, T. Niita, Masashi Kaneta, T. Hester, K. A. Drees, A. Glenn, R. Tanabe, D. Layton, K. Imai, Masayasu Ishihara, M. Grosse Perdekamp, M. Ouchida, T. Kempel, Dong-Hun Kim, Susumu Sato, R. K. Choudhury, L. Kochenda, C. Pinkenburg, Y. Onuki, N. Means, J. Jin, B. Azmoun, E. M. Takagui, Takahiro Nakamura, J. L. Charvet, D. Kawall, A. Král, M. J. Kweon, J. Asai, K. Tanida, H. Themann, W. C. Chang, M. Stepanov, G. Roche, Steven E. Skutnik, C. Baumann, Y. J. Mao, A. A. Vinogradov, Jan Rak, S. Kametani, T. Horaguchi, V-N. Tram, C. P. Singh, V. I. Kochetkov, N. Grau, G. S. Kyle, B. M. Johnson, Susumu Oda, J. Murata, Herve Borel, D. Lynch, F. Matathias, James Alexander, J. H. Kang, J. S. Haggerty, A. Romana, Kensuke Homma, R. Lacey, R. Granier de Cassagnac, A. Adare, T. E. Miller, M. Kurosawa, A. Isupov, C. Suire, A. Durum, Motoi Inaba, Jiangyong Jia, Y. Goto, R. Averbeck, Byung-Sik Hong, R. Pak, L. Maek, H. Qu, J. Sziklai, Gerd Joachim Kunde, A. Bazilevsky, I. Shein, Shingo Sakai, Rushan Han, T. L. Thomas, Robert F. Hobbs, D. Winter, N. Kamihara, P. Chung, K. Yamaura, Philippe Rosnet, K. O. Eyser, A. K. Purwar, K. Fujiwara, K. Sedgwick, D. Yu Peressounko, P. Constantin, P. Mike, V. L. Rykov, T. Dahms, J. Imrek, K. Das, S. Butsyk, S. Chernichenko, Brian Cole, R. S. Towell, Hideki Hamagaki, K. Aoki, Alberto Baldisseri, Alexandre Lebedev, Vladimir Samsonov, G. David, M. Oka, D. M. Lee, Y. S. Lai, R. Armendariz, E. P. Hartouni, I. Ravinovich, Kazuyoshi Kurita, B. Bassalleck, A. Dion, W. S. Emam, Y. Nagata, I. Garishvili, Akio Kiyomichi, F. Wei, Debashish Pal, K. Kiriluk, A. Drees, M. Bai, Y. L. Yamaguchi, S. Sawada, J. Ying, A. Franz, B. Komkov, M. Konno, J. Kubart, N. Kurihara, H. Kanou, Taku Gunji, H. Gong, Ryugo S. Hayano, J. Seele, Atsushi Taketani, K. Sakashita, H. Liu, F. Kajihara, C. Y. Chi, Anne Marie Sickles, Y. Riabov, Kenta Shigaki, K. Shoji, H. W. Van Hecke, Norio Saito, Tamas Ferenc Csorgo, M. A. L. Leite, J. T. Mitchell, A. Enokizono, H. Delagrange, R. Seidl, M. Nguyen, Vladislav Manko, K. S. Joo, R. Bennett, J. L. Nagle, C. M. Camacho, Prashant Shukla, A. S. Nyanin, P. W. Stankus, M. Slunečka, M. Finger, J. S. Kapustinsky, S. F. Pate, Rachid Nouicer, V. Babintsev, J. Egdemir, S. Belikov, Jason Kamin, S. Zhou, S. Bathe, S. P. Stoll, S. D. Rolnick, Agneta Oskarsson, H. Al-Bataineh, T. Ichihara, G. R. Young, Matthew G. Reuter, Y. Berdnikov, Takahiro Fusayasu, Y. Akiba, O. Dietzsch, C. Vale, B. S. Chang, M. Mishra, Alexander Malakhov, S. S.E. Rosendahl, G. Bunce, B. Love, E. T. Atomssa, H. Valle, S. Nagamiya, V. Papavassiliou, Sébastien Gadrat, D. Sharma, Christine Angela Aidala, J. Klay, R. Ichimiya, K. Dehmelt, Vaclav Vrba, Klaus Johannes Reygers, D. Silvermyr, L. S. Zolin, A. G. Litvinenko, Dipanwita Dutta, Jen-Chieh Peng, W. J. Park, A. Churyn, A. Kiss, M. Mitrovski, P. D. Barnes, A. Yanovich, D. Jouan, Julia Velkovska, Z. Yasin, Henner Buesching, S. N. White, A. Kozlov, R. Seto, K. Haruna, M. Wysocki, Xiong Wang, Zvi Hirsh Citron, Marcus Hohlmann, Dong Jo Kim, Osamu Jinnouchi, K. Nakano, W. E. Sondheim, S. Takagi, D. Ivanischev, Hiroaki Ohnishi, K. B. Lee, K. N. Barish, S. Afanasiev, A. Ster, P. A. Rukoyatkin, A. Veicht, John Hill, I. Tserruya, Yu. Efremenko, V. Singh, P. Ruička, P. Liebing, D. Hornback, Toru Sugitate, L. D. Isenhower, M. Heffner, M. L. Brooks, A. Taranenko, X. He, O. O. Omiwade, Kazushi Miki, François Fleuret, Brajesh K. Singh, V. Peresedov, Beau Meredith, V. S. Pantuev, J. Koster, Alexander Milov, I. Nakagawa, T. Engelmore, D. Roach, K. M. Kijima, O. Drapier, Frank Ellinghaus, T. Lika, S. Batsouli, H. Masui, A. K. Dubey, Junji Tojo, E. R. Kinney, A. A. Bickley, Hiroyuki Okada, D. P. Morrison, S. Campbell, Eva Haslum, B. Lenzi, K. Okada, B. Sahlmueller, H. En'yo, M. J. Leitch, V. E. Semenov, J. Zimányi, Tatsuya Chujo, Xingguo Li, M. Gonin, A. Sukhanov, H. Pereira, Y. Morino, S. P. Sorensen, Dylan Walker, Seong H. Kim, J. G. Lajoie, T. Hachiya, I. J. Choi, A. Kravitz, Minghui Liu, Kenneth Francis Read, Tadaaki Isobe, P. L. McGaughey, M. Chiu, A. V. Kazantsev, A. Hadj Henni, Maya Hachiya Shimomura, Y. I. Makdisi, M. J. Tannenbaum, H. Torii, D. Mukhopadhyay, S. Rembeczki, J. Chiba, Beomkyu Kim, K. Boyle, T. C. Awes, Kyoichiro Ozawa, Takao Sakaguchi, C. Klein-Boesing, Jun Kikuchi, A. D. Frawley, T. Tabaru, S. Huang, S. H. Aronson, W. Holzmann, Wei Xie, M. I. Nagy, M. Issah, M. D. Malik, E. Vznuzdaev, L. Aphecetche, Johannes Peter Wessels, H. A. Gustafsson, C. Zhang, R. Vértesi, Viktor Riabov, A. P.T. Palounek, S. Esumi, W. A. Zajc, Jason Newby, V. Baublis, A. Denisov, V. Cianciolo, Y. Tomita, J. E. Frantz, Sergey Fokin, E. J. Desmond, M. Togawa, J. Park, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, E. Stenlund, H. Sakata, T. V. Moukhanova, and Charles Maguire
Subjects: Quark, Semileptonic decay, Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Electron, 01 natural sciences, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The momentum distribution of electrons from semileptonic decays of charm and bottom quarks for midrapidity |y| e(+/-)K(-/+)X (K unidentified) reconstruction. It is found that the yield of electrons from bottom becomes significant above 4 GeV/c in p(T). A fixed-order-plus-next-to-leading-log perturbative quantum chromodynamics calculation agrees with the data within the theoretical and experimental uncertainties. The extracted total bottom production cross section at this energy is sigma(bb)=3.2(-1.1)(+1.2)(stat)(-1.3)(+1.4)(syst)mu b.
Published: 2009

42. Gluon-Spin Contribution to the Proton Spin from the Double-Helicity Asymmetry in Inclusiveπ0Production in Polarizedp+pCollisions ats=200 GeV

Author: Yu. Efremenko, Tadaaki Isobe, H. Pei, V. Singh, K. S. Sim, V. Dzhordzhadze, P. Tarján, P. L. McGaughey, Y. Watanabe, M. Chiu, A. Yu. Semenov, J. Gosset, R. Yang, S. Afanasiev, A. Ster, M. Gonin, S. Taneja, B. Azmoun, A. Král, M. J. Kweon, F. Matathias, J. Newby, G. Roche, L. Aphecetche, T. L. Thomas, Kensuke Homma, K. Imai, Tae-Yeon Lee, Martin Purschke, A. Morreale, Z. Fraenkel, A. Sukhanov, H. Pereira, Y. Morino, Senta Greene, R. K. Choudhury, L. Tomášek, V. S. Pantuev, S. Yokkaichi, R. S. Towell, I. Garishvili, F. Wei, K. A. Drees, A. V. Kazantsev, Y. L. Yamaguchi, A. T. Basye, B. Fadem, E. O'Brien, P. Constantin, B. Komkov, S. Chernichenko, K. Sakashita, Ryugo S. Hayano, M. Oka, A. Dion, Jen-Chieh Peng, S. Bathe, D. Hornback, Y. Ikeda, J. G. Boissevain, E. J. Mannel, Johannes Peter Wessels, C. M. Camacho, Prashant Shukla, B. Bassalleck, N. N. Ajitanand, Agneta Oskarsson, Atsushi Taketani, A. Enokizono, P. Liebing, C. Silvestre, Anne Marie Sickles, K. Okada, Youngil Kwon, K. S. Joo, S. F. Pate, Norio Saito, M. A. L. Leite, A. Deshpande, M. Rosati, Y. Riabov, M. Heffner, M. Konno, Taku Gunji, H. Gong, B. Sahlmueller, R. A. Soltz, H. En'yo, M. J. Leitch, Dong Jo Kim, M. I. Nagy, M. Issah, C. Pinkenburg, Marisilvia Donadelli, V. Bumazhnov, J. Seele, Y. Berdnikov, D. Sharma, T. C. Awes, M. D. Malik, C. Y. Chi, R. Ichimiya, Y. Akiba, Kyoichiro Ozawa, T. Liška, A. Taranenko, Kenta Shigaki, Jun Kikuchi, M. Nguyen, Takahiro Nakamura, M. Grosse Perdekamp, J. Egdemir, E. Vznuzdaev, S. P. Sorensen, Dylan Walker, M. Stepanov, Y. Tanaka, Andry Malala Rakotozafindrabe, Takao Sakaguchi, M. Mishra, S. Nagamiya, S. Dairaku, H. Al-Bataineh, X. R. Wang, A. Veicht, F. Kajihara, G. R. Young, Kazushi Miki, J. S. Kapustinsky, Brajesh K. Singh, Susumu Oda, A. Durum, Y. J. Mao, A. S. Nyanin, Seong H. Kim, T. Horaguchi, C. Klein-Boesing, K. Das, Christophe Pierre Suire, Alexander Milov, Rachid Nouicer, C. Baumann, I. Nakagawa, V. Babintsev, S. Kametani, Y. Nakamiya, Vaclav Vrba, Klaus Johannes Reygers, Minghui Liu, R. Tanabe, D. Layton, A. A. Vinogradov, T. Engelmore, Kenneth Francis Read, Y. Onuki, E. J. Desmond, J. G. Lajoie, Jason Kamin, A. D. Frawley, A. Hadj Henni, J. H. Kang, O. Zaudtke, Jan Rak, J. S. Haggerty, E. P. Hartouni, C. P. Singh, G. S. Kyle, O. Drapier, Frank Ellinghaus, K. Yamaura, F. Staley, L. Baksay, E. R. Kinney, Jiangyong Jia, R. Lacey, B. M. Johnson, Y. Goto, Beomkyu Kim, K. Boyle, S. Huang, R. Granier de Cassagnac, A. Adare, I. J. Choi, Wei Xie, A. Kravitz, S. P. Stoll, D. P. Morrison, S. Campbell, Charles Maguire, James Alexander, C. L. Woody, A. Berdnikov, S. Butsyk, K. B. Lee, V. Papavassiliou, D. E. Fields, D. Winter, D. Yu Peressounko, I. Younus, Y. S. Lai, M. Togawa, A. Kiss, S. Zhou, W. Holzmann, Maya Hachiya Shimomura, H. Liu, R. Averbeck, B. V. Jacak, Byung-Sik Hong, A. Bazilevsky, M. Virius, V. E. Semenov, K. Shoji, S. S.E. Rosendahl, Tatsuya Chujo, E. Kistenev, M. McCumber, A. Isupov, J. Sziklai, Y. I. Makdisi, D. Roach, G. Baksay, K. M. Kijima, Alexandre Lebedev, Hiroyuki Okada, D. M. Lee, I. V. Sourikova, G. Bunce, A. Soldatov, Henner Buesching, S. D. Rolnick, J. L. Charvet, Brian Cole, W. C. Chang, Rushan Han, Eva Haslum, B. Lenzi, A. Churyn, S. Sawada, J. Ying, A. Franz, A. Glenn, M. Kurosawa, Xingguo Li, Vladimir Samsonov, M. J. Tannenbaum, P. W. Stankus, D. Jouan, H. Torii, I. Ravinovich, K. Kiriluk, A. P.T. Palounek, M. Ouchida, M. Naglis, P. Chand, N. Means, J. Asai, R. Pak, D. Mukhopadhyay, S. Rembeczki, C. L. Silva, Marcus Hohlmann, P. Chung, J. T. Mitchell, R. Seidl, E. H. Kim, H. A. Gustafsson, N. Kamihara, J. Imrek, S. E. Williamson, Tamas Ferenc Csorgo, M. Bai, X. He, Shingo Sakai, C. Zhang, Vladislav Manko, M. Slunečka, J. L. Nagle, Kazuyoshi Kurita, P. Ružička, P. Mikeš, V. Peresedov, Masayasu Ishihara, A. Drees, Viktor Riabov, S. Belikov, Ajit Kumar Mohanty, Y. Fukao, T. A. Shibata, S. Esumi, T. Sato, P. Rosnet, K. O. Eyser, A. K. Purwar, O. Dietzsch, W. A. Zajc, V. Baublis, J. Koster, K. Fujiwara, E. T. Atomssa, H. Valle, T. Hester, A. Denisov, V. Cianciolo, Y. Tomita, D. Kawall, K. Tanida, H. Themann, Sergey Fokin, D. Isenhower, C. Vale, B. S. Chang, V. I. Kochetkov, A. Toia, Dipanwita Dutta, J. Jin, R. Bennett, E. M. Takagui, S. Batsouli, L. Mašek, H. Masui, A. K. Dubey, T. Kempel, Dong-Hun Kim, J. Murata, Christine Angela Aidala, J. Klay, T. Niita, Julia Velkovska, Gerd Joachim Kunde, I. Shein, A. A. Bickley, V-N. Tram, H. W. Van Hecke, N. Grau, M. Finger, K. Sedgwick, Motoi Inaba, Alberto Baldisseri, B. Love, Mate Csanad, David D'Enterria, Herve Borel, D. Lynch, A. G. Litvinenko, V. L. Rykov, T. Dahms, A. Kozlov, R. Seto, K. Haruna, K. N. Barish, J. Park, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, E. Stenlund, T. V. Moukhanova, R. Vértesi, J. E. Frantz, M. L. Brooks, C. A. Ogilvie, T. K. Hemmick, M. Wysocki, Yasuo Miake, L. Kochenda, H. Qu, Hideki Hamagaki, K. Aoki, G. David, S. N. White, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, P. A. Rukoyatkin, B. Meredith, John Hill, Toru Sugitate, François Fleuret, T. Ichihara, Matthew G. Reuter, Takahiro Fusayasu, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, and I. Tserruya
Subjects: Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, General Physics and Astronomy, Inelastic scattering, Deep inelastic scattering, 01 natural sciences, Helicity, Nuclear physics, Baryon, Pion, 0103 physical sciences, Proton spin crisis, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The double helicity asymmetry in neutral pion production for p(T) = 1 to 12 GeV/c was measured with the PHENIX experiment to access the gluon-spin contribution, Delta G, to the proton spin. Measured asymmetries are consistent with zero, and at a theory scale of mu 2 = 4 GeV2 a next to leading order QCD analysis gives Delta G([0.02,0.3]) = 0.2, with a constraint of -0.7 < Delta G([0.02,0.3]) < 0.5 at Delta chi(2) = 9 (similar to 3 sigma) for the sampled gluon momentum fraction (x) range, 0.02 to 0.3. The results are obtained using predictions for the measured asymmetries generated from four representative fits to polarized deep inelastic scattering data. We also consider the dependence of the Delta G constraint on the choice of the theoretical scale, a dominant uncertainty in these predictions.
Published: 2009

43. Measurement of bottom versus charm as a function of transverse momentum with electron-hadron correlations in p + p collisions at square root of s = 200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, A T, Basye, S, Bathe, S, Batsouli, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, B S, Chang, W C, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, Z, Citron, C R, Cleven, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, K, Das, G, David, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, A K, Dubey, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, S, Gadrat, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M Grosse, Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A Hadj, Henni, C, Haegemann, J S, Haggerty, H, Hamagaki, R, Han, H, Harada, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, J, Imrek, M, Inaba, Y, Inoue, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, J, Kapustinsky, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, B I, Kim, D H, Kim, D J, Kim, E, Kim, S H, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, J, Kubart, G J, Kunde, N, Kurihara, K, Kurita, M, Kurosawa, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, Y S, Lai, J G, Lajoie, D, Layton, A, Lebedev, D M, Lee, K B, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, P, Liebing, T, Liska, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, M, Mishra, J T, Mitchell, M, Mitrovski, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, T, Niita, B E, Norman, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, H, Okada, K, Okada, M, Oka, O O, Omiwade, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, D, Roach, G, Roche, S D, Rolnick, A, Romana, M, Rosati, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ruzicka, V L, Rykov, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, K, Sakashita, H, Sakata, V, Samsonov, S, Sato, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, V, Semenov, R, Seto, D, Sharma, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, C, Suire, A, Sukhanov, J, Sziklai, T, Tabaru, S, Takagi, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, Y, Tomita, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, A, Veicht, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, X R, Wang, Y, Watanabe, F, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, and L, Zolin
Abstract: The momentum distribution of electrons from semileptonic decays of charm and bottom quarks for midrapidity |y|0.35 in p+p collisions at square root of s=200 GeV is measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range 2pT7 GeV/c. The ratio of the yield of electrons from bottom to that from charm is presented. The ratio is determined using partial D/D--e(+/-)K(-/+)X (K unidentified) reconstruction. It is found that the yield of electrons from bottom becomes significant above 4 GeV/c in pT. A fixed-order-plus-next-to-leading-log perturbative quantum chromodynamics calculation agrees with the data within the theoretical and experimental uncertainties. The extracted total bottom production cross section at this energy is sigma(bb)=3.2(-1.1)(+1.2)(stat)(-1.3)(+1.4)(syst)mub.
Published: 2009

44. Measurement of the branching ratio of the decayKL0→μμ

Author: Y. Hemmi, F. Suekane, T. Inagaki, Y. Yoshimura, Kyohei Ishikawa, R. Fukuhisa, Motoki Kobayashi, T. Sato, T. Shinkawa, K. Takamatsu, T. Akagi, S. Yamamoto, J. Toyoura, M. Kuze, Fuminori Sai, T. Kishida, and T. K. Komatsubara
Subjects: Particle scattering, Physics, Angular distribution, Distribution function, Branching fraction, General Physics and Astronomy, Elementary particle, Atomic physics, Micro/Micro, Effective mass (spring–mass system)
Abstract: We observed 117.8 ${\mathit{K}}_{\mathit{L}}^{0}$\ensuremath{\rightarrow}\ensuremath{\mu}\ensuremath{\mu} events after background subtraction of 1.2 events in an experiment to search for the deays ${\mathit{K}}_{\mathit{L}}^{0}$\ensuremath{\rightarrow}\ensuremath{\mu}e and ee at the KEK 12-GeV Proton Synchrotron. Normalizing to the decay ${\mathit{K}}_{\mathit{L}}^{0}$\ensuremath{\rightarrow}${\mathrm{\ensuremath{\pi}}}^{+}$${\mathrm{\ensuremath{\pi}}}^{\mathrm{\ensuremath{-}}}$, the branching ratio B(${\mathit{K}}_{\mathit{L}}^{0}$\ensuremath{\rightarrow}\ensuremath{\mu}\ensuremath{\mu})=[7.9\ifmmode\pm\else\textpm\fi{}0.6(stat)\ifmmode\pm\else\textpm\fi{}0.3 (syste)]\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}9}$ was obtained.
Published: 1991

45. Search for the rare decaysKL0→μeandKL0→ee

Author: Y. Hemmi, T. Kishida, T. Inagaki, T. K. Komatsubara, Motoki Kobayashi, F. Suekane, T. Sato, Kyohei Ishikawa, J. Toyoura, T. Shinkawa, T. Akagi, S. Yamamoto, Fuminori Sai, Y. Yoshimura, M. Kuze, K. Takamatsu, and R. Fukuhisa
Subjects: Physics, Particle scattering, Crystallography, Particle decay, Angular distribution, Branching fraction, General Physics and Astronomy, Gamma detection
Abstract: A search for the rare decays {ital K}{sub {ital L}}{sup 0}{r arrow}{mu}{ital e} and {ital K}{sub {ital L}}{sup 0}{r arrow}{ital ee} was performed at the KEK 12-GeV Proton Synchrotron. No event was observed in the fiducial region for the decay {ital K}{sub {ital L}}{sup 0}{r arrow}{mu}{ital e}. There was one event in the fiducial region for the decay {ital K}{sub {ital L}}{sup 0}{r arrow}{ital ee}, which was indistinguishable from the background. The upper limits on the branching ratios at 90% confidence level were {ital B}({ital K}{sub {ital L}}{sup 0}{r arrow}{mu}{ital e}){lt}9.4{times}10{sup {minus}11} and {ital B}({ital K}{sub {ital L}}{sup 0}{r arrow}{ital ee}){lt}1.6{times}10{sup {minus}10}.
Published: 1991

46. New Measurement of theK+→π+νν¯Branching Ratio

Author: A. Kushnirenko, J. Ives, T. Numao, E. J. Ramberg, Tamaki Yoshioka, Ewart W. Blackmore, J. A. Macdonald, T. Tsunemi, B. Bassalleck, K. K. Li, Song Chen, Y. Yoshimura, J. Mildenberger, R. Poutissou, Douglas Bryman, R. C. Strand, A. P. Kozhevnikov, T. K. Komatsubara, Yoichi Tamagawa, D. E. Jaffe, A. V. Artamonov, I. A. Christidi, T. Shinkawa, D. I. Patalakha, N. V. Yershov, O. V. Mineev, T. Sekiguchi, A. N. Khotjantsev, George Redlinger, K. Mizouchi, T. Nomura, A. Konaka, R. Tschirhart, Zhe Wang, I. H. Chiang, K. Omata, S. H. Kettell, T. Fujiwara, Norihito Muramatsu, V. Obraztsov, M. M. Khabibullin, M. V. Diwan, Masaaki Kobayashi, V. A. Mukhin, L. S. Littenberg, Yu. G. Kudenko, S. Sugimoto, T. Sato, J. Hu, James Frank, Masaharu Nomachi, B. Lewis, T. Nakano, M. Miyajima, S. V. Petrenko, P. Kitching, P. S. Cooper, B. Viren, B. Bhuyan, S. Kabe, D. V. Vavilov, and L. G. Landsberg
Subjects: Physics, Nuclear physics, Particle decay, Pair production, Pion, Meson, Branching fraction, Hadron, General Physics and Astronomy, Dimensionless quantity, Lepton
Abstract: Three events for the decay K+-->pi+ nunu have been observed in the pion momentum region below the K+-->pi+pi0 peak, 140 pi+ nunu) = (1.73(-1.05)+1.15) x 10(-10) consistent with the standard model prediction.
Published: 2008

47. Search for a light pseudoscalar particle in the decay K_{L};{0}--pi;{0}pi;{0}X

Author: Y C, Tung, Y B, Hsiung, M L, Wu, K F, Chen, J K, Ahn, Y, Akune, V, Baranov, J, Comfort, M, Doroshenko, Y, Fujioka, T, Inagaki, S, Ishibashi, N, Ishihara, H, Ishii, E, Iwai, T, Iwata, I, Kato, S, Kobayashi, T K, Komatsubara, A S, Kurilin, E, Kuzmin, A, Lednev, H S, Lee, S Y, Lee, G Y, Lim, J, Ma, T, Matsumura, A, Moisseenko, H, Morii, T, Morimoto, T, Nakano, H, Nanjo, J, Nix, T, Nomura, M, Nomachi, R, Ogata, H, Okuno, K, Omata, G N, Perdue, S, Podolsky, K, Sakashita, T, Sasaki, N, Sasao, H, Sato, T, Sato, M, Sekimoto, T, Shinkawa, Y, Sugaya, A, Sugiyama, T, Sumida, S, Suzuki, Y, Tajima, S, Takita, Z, Tsamalaidze, T, Tsukamoto, Y, Wah, H, Watanabe, M, Yamaga, T, Yamanaka, H Y, Yoshida, Y, Yoshimura, and Y, Zheng
Abstract: We performed a search for a light pseudoscalar particle X in the decay K_{L};{0}--pi;{0}pi;{0}X, X--gammagamma with the E391a detector at KEK. Such a particle with a mass of 214.3 MeV/c;{2} was suggested by the HyperCP experiment. We found no evidence for X and set an upper limit on the product branching ratio for K_{L};{0}--pi;{0}pi;{0}X, X--gammagamma of 2.4x10;{-7} at the 90% confidence level. Upper limits on the branching ratios in the mass region of X from 194.3 to 219.3 MeV/c;{2} are also presented.
Published: 2008

48. Onset ofπ0Suppression Studied inCu+CuCollisions atsNN=22.4, 62.4, and 200 GeV

Author: M. J. Tannenbaum, H. Torii, D. Mukhopadhyay, S. Rembeczki, S. P. Sorensen, Dylan Walker, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, S. Dairaku, Charles Maguire, Seong H. Kim, R. Tanabe, D. Layton, J. G. Lajoie, T. Hachiya, I. J. Choi, A. Kravitz, W. C. Chang, Roy A. Lacey, N. N. Ajitanand, Rushan Han, Takahiro Nakamura, Susumu Oda, D. Lynch, A. Durum, V. L. Rykov, T. Dahms, S. Butsyk, Vladimir Samsonov, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, Catherine Micaela Silvestre, K. Yamaura, O. Zaudtke, Tamas Ferenc Csorgo, E. Kistenev, M. Virius, J. L. Nagle, B. Azmoun, D. Isenhower, Y. Onuki, Hiroaki Ohnishi, K. B. Lee, A. Toia, A. Král, R. Vértesi, M. J. Kweon, M. Gonin, A. Glenn, L. Mašek, A. Sukhanov, H. Pereira, C. M. Camacho, Y. Morino, A. V. Kazantsev, H. Harada, K. O. Eyser, M. Oka, A. K. Purwar, Prashant Shukla, K. Fujiwara, D. Roach, K. M. Kijima, I. Ravinovich, J. Chiba, Y. Nagata, T. Niita, M. Bai, Xingguo Li, A. Dion, G. S. Kyle, Takao Sakaguchi, C. Klein-Boesing, R. Bennett, S. F. Pate, Steven E. Skutnik, D. E. Fields, M. Finger, J. L. Charvet, James Alexander, R. S. Towell, P. Tarján, Atsushi Taketani, A. Enokizono, A. Shevel, A. D. Frawley, T. Tabaru, B. V. Jacak, J. E. Frantz, M. B. Deaton, Tae-Yeon Lee, Martin Purschke, Jan Rak, R. Averbeck, Byung-Sik Hong, K. A. Drees, H. Al-Bataineh, A. Bazilevsky, S. Huang, S. H. Aronson, T. E. Miller, M. Naglis, M. Kurosawa, E. T. Atomssa, M. McCumber, Y. Tanaka, J. T. Mitchell, Philippe Rosnet, M. K. Lee, C. L. Silva, I. Garishvili, Akio Kiyomichi, F. Wei, W. Holzmann, C. A. Ogilvie, Alexei Khanzadeev, T. Hester, R. Granier de Cassagnac, L. Tomášek, T. K. Hemmick, P. Chung, Alexandre Lebedev, D. M. Lee, V. S. Pantuev, A. Adare, L. Baksay, Masayasu Ishihara, Susumu Sato, E. Stenlund, H. Sakata, R. Seidl, Vladislav Manko, H. Qu, J. Imrek, W. S. Emam, K. Das, D. Kotchetkov, N. Kurihara, E. P. Hartouni, K. Kiriluk, H. Pei, F. Staley, H. Kanou, Taku Gunji, H. Gong, J. Seele, M. Slunečka, K. Dehmelt, V. Papavassiliou, Sébastien Gadrat, Robert F. Hobbs, Jen-Chieh Peng, Senta Greene, Junji Tojo, A. T. Basye, P. Mikeš, B. E. Norman, B. Fadem, E. O'Brien, R. A. Soltz, H. Borel, Yasuo Miake, Y. L. Yamaguchi, Xiong Wang, L. Aphecetche, B. Komkov, S. Belikov, Yoichiro Fukao, Dong Jo Kim, A. Morreale, F. Kajihara, K. Okada, M. Grosse Perdekamp, Osamu Jinnouchi, A. Deshpande, Z. Fraenkel, C. Y. Chi, B. Sahlmueller, T. C. Awes, Kyoichiro Ozawa, T. Liška, L. Kochenda, H. En'yo, Jun Kikuchi, Hideki Hamagaki, K. Aoki, T. V. Moukhanova, H. Delagrange, Norio Saito, A. Veicht, M. J. Leitch, G. David, O. Dietzsch, H. Valle, Debashish Pal, C. Vale, B. S. Chang, S. Sawada, V-N. Tram, N. Grau, Johannes Peter Wessels, M. A. L. Leite, Alexander Milov, H. W. Vanhecke, Dipanwita Dutta, J. Ying, A. Franz, I. Nakagawa, Christine Angela Aidala, T. Engelmore, J. Klay, R. K. Choudhury, Y. Watanabe, E. J. Desmond, O. Drapier, Frank Ellinghaus, D. Winter, D. Yu Peressounko, Anne Marie Sickles, Saskia Mioduszewski, E. R. Kinney, Motoi Inaba, I. Younus, K. S. Joo, D. P. Morrison, M. Togawa, S. Campbell, S. Zhou, Minghui Liu, B. Meredith, F. Matathias, Kensuke Homma, Mate Csanad, M. I. Nagy, V. E. Semenov, J. Park, M. Issah, J. Zimányi, A. Baldisseri, Kenneth Francis Read, Tatsuya Chujo, I. Tserruya, A. Soldatov, D. Kawall, K. Tanida, H. Themann, J. S. Kapustinsky, P. Constantin, S. Chernichenko, Yu. Efremenko, M. D. Malik, Julia Velkovska, E. Vznuzdaev, V. Singh, P. Liebing, Y. Tsuchimoto, V. I. Kochetkov, M. Mitrovski, V. Babintsev, H. Liu, R. Pak, B. Bassalleck, G. R. Young, Tadaaki Isobe, J. Murata, E. H. Kim, J. Jin, I. E. Yushmanov, David D'Enterria, M. Konno, K. Shoji, E. M. Takagui, N. Kamihara, M. Wysocki, Gerd Joachim Kunde, I. Shein, C. Baumann, P. L. McGaughey, C. P. Singh, Y. Nakamiya, M. Chiu, M. Rosati, A. Hadj Henni, P. W. Stankus, B. M. Johnson, X. He, O. O. Omiwade, R. Armendariz, Beomkyu Kim, K. Boyle, Kazuyoshi Kurita, K. S. Sim, V. Dzhordzhadze, K. Sedgwick, G. Baksay, V. Peresedov, D. Sharma, R. Ichimiya, M. N. Wagner, A. Isupov, C. Suire, Y. Kwon, Wei Xie, J. Koster, A. Drees, J. Sziklai, R. Yang, H. Hiejima, Brian Cole, A. A. Vinogradov, K. Imai, J. Kubart, S. Batsouli, H. Masui, K. Sakashita, J. Egdemir, Jiangyong Jia, A. K. Dubey, A. A. Bickley, Jason Kamin, S. Takagi, S. P. Stoll, Y. Goto, S. S.E. Rosendahl, G. Bunce, C. R. Cleven, K. N. Barish, C. Haegemann, Y. Inoue, A. Churyn, D. Jouan, T. Kempel, Dong-Hun Kim, M. L. Brooks, B. Love, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, S. Esumi, W. A. Zajc, M. Ouchida, N. Means, J. Asai, V. Baublis, A. Denisov, V. Cianciolo, A. Kiss, Z. Yasin, Henner Buesching, Shingo Sakai, Marcus Hohlmann, Y. Tomita, S. Bathe, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, T. L. Thomas, Sergey Fokin, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Rachid Nouicer, C. L. Woody, A. Berdnikov, S. D. Rolnick, H. A. Gustafsson, I. V. Sourikova, C. Zhang, P. Ružička, Viktor Riabov, T. Ichihara, Matthew G. Reuter, Takahiro Fusayasu, A. P.T. Palounek, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, S. N. White, Y. J. Mao, S. Kametani, T. Horaguchi, Zvi Hirsh Citron, K. Nakano, J. H. Kang, W. E. Sondheim, J. S. Haggerty, S. Afanasiev, D. Ivanischev, A. Ster, A. Romana, J. Newby, P. A. Rukoyatkin, John Hill, D. Hornback, M. Heffner, Toru Sugitate, L. D. Isenhower, A. Taranenko, François Fleuret, Kazushi Miki, Brajesh K. Singh, Y. S. Lai, Hiroyuki Okada, Eva Haslum, A. Yu. Semenov, B. Lenzi, J. Gosset, S. Yokkaichi, Y. Ikeda, J. G. Boissevain, E. J. Mannel, Masashi Kaneta, C. Pinkenburg, M. Stepanov, G. Roche, Maya Hachiya Shimomura, and Y. I. Makdisi
Subjects: Physics, Energy loss, Quantitative Biology::Neurons and Cognition, 010308 nuclear & particles physics, General Physics and Astronomy, chemistry.chemical_element, Parton, Inelastic scattering, 01 natural sciences, Copper, Spectral line, Nuclear physics, Pion, chemistry, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Jet quenching
Abstract: Neutral pion transverse momentum (p(T)) spectra at midrapidity (|y| less than or similar to 0.35) were measured in Cu + Cu collisions at root s(NN) = 22.4, 62.4, and 200 GeV. Relative to pi(0) yields in p + p collisions scaled by the number of inelastic nucleon-nucleon collisions (N-coll) the pi(0) yields for p(T) greater than or similar to 2 GeV/c in central Cu + Cu collisions are suppressed at 62.4 and 200 GeV whereas an enhancement is observed at 22.4 GeV. A comparison with a jet-quenching model suggests that final state parton energy loss dominates in central Cu + Cu collisions at 62.4 and 200 GeV, while the enhancement at 22.4 GeV is consistent with nuclear modifications in the initial state alone.
Published: 2008

49. Gluon-spin contribution to the proton spin from the double-helicity asymmetry in inclusive pi0 production in polarized p+p collisions at [sqrt]s=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, A T, Basye, S, Bathe, S, Batsouli, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, P, Chand, B S, Chang, W C, Chang, J-L, Charvet, S, Chernichenko, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, Z, Citron, B A, Cole, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, K, Das, G, David, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, A K, Dubey, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R Granier, de Cassagnac, N, Grau, S V, Greene, M Grosse, Perdekamp, T, Gunji, H-A, Gustafsson, A Hadj, Henni, J S, Haggerty, H, Hamagaki, R, Han, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, J, Imrek, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, B I, Kim, D H, Kim, D J, Kim, E, Kim, S H, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, J, Koster, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, D, Layton, A, Lebedev, D M, Lee, K B, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, P, Liebing, T, Liska, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, P, Mikes, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, T, Niita, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Okada, K, Okada, M, Oka, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, D, Roach, G, Roche, S D, Rolnick, M, Rosati, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ruzicka, V L, Rykov, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, K, Sakashita, V, Samsonov, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, V, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunecka, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, C, Suire, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomásek, Y, Tomita, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, A, Veicht, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, D, Walker, X R, Wang, Y, Watanabe, F, Wei, J, Wessels, S N, White, S, Williamson, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, and L, Zolin
Abstract: The double helicity asymmetry in neutral pion production for pT=1 to 12 GeV/c was measured with the PHENIX experiment to access the gluon-spin contribution, DeltaG, to the proton spin. Measured asymmetries are consistent with zero, and at a theory scale of micro2=4 GeV2 a next to leading order QCD analysis gives DeltaG[0.02,0.3]=0.2, with a constraint of -0.7DeltaG[0.02,0.3]0.5 at Deltachi2=9 (approximately 3sigma) for the sampled gluon momentum fraction (x) range, 0.02 to 0.3. The results are obtained using predictions for the measured asymmetries generated from four representative fits to polarized deep inelastic scattering data. We also consider the dependence of the DeltaG constraint on the choice of the theoretical scale, a dominant uncertainty in these predictions.
Published: 2008

50. Band structure and fermi surface of an extremely overdoped iron-based superconductor KFe2As2

Author: T, Sato, K, Nakayama, Y, Sekiba, P, Richard, Y-M, Xu, S, Souma, T, Takahashi, G F, Chen, J L, Luo, N L, Wang, and H, Ding
Abstract: We have performed high-resolution angle-resolved photoemission spectroscopy on heavily overdoped KFe_{2}As_{2} (transition temperature T_{c} = 3 K). We observed several renormalized bands near the Fermi level with a renormalization factor of 2-4. While the Fermi surface around the Brillouin-zone center is qualitatively similar to that of optimally doped Ba_{1-x}K_{x}Fe_{2}As_{2} (x = 0.4; T_{c} = 37 K), the Fermi surface topology around the zone corner (M point) is markedly different: the two electron Fermi surface pockets are completely absent due to an excess of hole doping. This result indicates that the electronic states around the M point play an important role in the high-T_{c} superconductivity of Ba_{1-x}K_{x}Fe_{2}As_{2} and suggests that the interband scattering via the antiferromagnetic wave vector essentially controls the T_{c} value in the overdoped region.
Published: 2008

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