Production of π0 and η mesons in Cu+Au collisions at sNN=200GeV

6533b873fe1ef96bd12d4b3c

RESEARCH PRODUCT

Production of π0 and η mesons in Cu+Au collisions at sNN=200GeV

Mate Csanad E. Stenlund S. Huang Maya Hachiya Shimomura Y. Nakamiya D. Lynch C. Xu M. Nihashi D. Kawall I. Younus Vardan Khachatryan Y. I. Makdisi N. Crossette S. Solano K. Tanida X. He R. Seto Robert Vertesi J. Koster Peter Christiansen T. W. Danley A. Mwai N. Novitzky N. Novitzky R. P. Pisani P. L. Mcgaughey B. Fadem M. Patel A. Ster K. O. Eyser X. Jiang Sung Keun Park J. Seele Y. J. Kwon N. Feege I. Tserruya Jan Rak N. N. Ajitanand N. N. Ajitanand R. S. Towell Sándor Lökös R. Lacey Y. Imazu I. Shein M. Jezghani K. N. Barish S. Zharko D. Kotov V. Singh A. Hodges V. Bumazhnov K. Sedgwick R. Granier De Cassagnac M. Chiu Ajit Kumar Mohanty T. A. Shibata I. Garishvili F. Wei G. D. N. Perera M. L. Brooks L. Zou Charles Maguire T. O. S. Haseler D. Black S. Bathe Y. Fukao T. Koblesky Mihael Makek S. Baumgart J. D. Orjuela Koop M. Sarsour Y. L. Yamaguchi Takahiro Nakamura Atsushi Takahara K. A. Drees C. H. Chen J. S. Kang Jason Kamin M. J. Tannenbaum D. E. Mihalik H. Qu Hideki Hamagaki W. Fan K. Aoki M. Vargyas G. David T. Todoroki Kensuke Homma T. Hester Minghui Liu R. A. Soltz Shoichi Hasegawa E. Richardson J. H. Kang C. P. Wong C. L. Woody J. S. Haggerty A. Berdnikov T. Hoshino A. Taranenko V. S. Pantuev A. Durum D. Isenhower Tamas Novak T. Moon W. A. Zajc C. L. Silva A. Manion K. I. Hahn A. Glenn P. V. Radzevich Animesh Datta C. Y. Chi A. Shaver S. Choi Yasutada Akiba Kenneth Francis Read T. Ichihara Y. Gu S. P. Stoll M. S. Daugherity S. J. Jeon J. Klatsky B. K. Schmoll J. B. Choi Ferdinando Giordano V. Baublis A. Denisov Yuki Watanabe V. Cianciolo C. Baumann S. Mizuno A. Meles Petr Gallus Eunja Kim K. Dehmelt Jen-chieh Peng M. Tomášek J. M. Durham Yoshifumi Ueda J. H. Do C. P. Singh Barbara Jacak M. Alfred Susumu Sato K. Watanabe K. Shoji A. Garishvili E. Tennant S. Kanda B. M. Johnson Taku Gunji Yongsun Kim W. Peng P. W. Stankus A. Isinhue Filip Krizek N. Grau Sergey Fokin M. Leitgab M. R. Stone T. Majoros Vladimir Samsonov Christine Nattrass D. E. Fields N. A. Lewis I. V. Sourikova Hari Guragain R. S. Hollis Kimberly Hill K. Okada K. Imai D. Reynolds M. Boer A. V. Kazantsev D. Richford James Alexander James Alexander B. Sahlmueller Y. S. Lai Motoi Inaba J. C. Hill S. Butsyk J. T. Mitchell M. Mccumber S. Tarafdar Inkyu Park I. Ravinovich Z. Sun Brian Cole E. Kistenev N. Riveli Ryugo S. Hayano M. Kurosawa Anne Marie Sickles J. H. Yoo Xiong Wang M. Slunecka S. Zhou N. Hotvedt R. Seidl T. Niida Tomofumi Nagae J. L. Nagle M. J. Leitch M. Finger H. Asano K. Gainey M. Virius Y. Riabov A. Lebedev Byung-sik Hong D. Jouan M. Bai Henner Buesching Kenta Shigaki B. Lewis S. R. P. Mohapatra A. Bazilevsky Dong Jo Kim Y. Watanabe Vladislav Manko J. S. Bok S. D. Rolnick Alice Mignerey L. D'orazio S. Miyasaka A. S. Nyanin Viktor Riabov L. Patel X. Gong Rachid Nouicer A. N. Zelenski J. D. Osborn Inseok Yoon Zhiying You H. W. Yu R. Belmont S. Wolin S. Yokkaichi M. S. Ryu Kei Nagashima D. M. Lee V. Canoa Roman A. Veicht Pawan Kumar Netrakanti M. Grosse Perdekamp G. Mitsuka Y. Sekiguchi T. C. Awes Kyoichiro Ozawa G. H. Lee Takao Sakaguchi J. E. Frantz Jongmin Lee Raphael Noel Tieulent H. Van Hecke Agneta Oskarsson A. Enokizono Y. Ikeda Alexander Milov D. Kincses A. Timilsina P. K. Khandai A. Taketani Priyanka Sett A. Sen Y. Berdnikov I. Nakagawa Young-ki Kim T. Engelmore A. D. Frawley D. S. Jumper S. H. Lee C. Mckinney Y. Tanaka B. Komkov Y. H. Leung S. Nagamiya Vaclav Vrba O. Drapier J. Sun A. Bagoly Norio Saito Tsutomu Mibe Hideyuki Oide D. P. Morrison C. Pinkenburg S. Campbell E. Mannel B. H. Kang A. Drees Tatsuya Chujo M. Stepanov S. H. Lim J. S. Kapustinsky V. Babintsev C. A. Ogilvie Timothy Thomas Rinn Martin Purschke C. A. Aidala C. A. Aidala D. Kotchetkov M. Moskowitz N. Cronin E. T. Atomssa B. Meredith T. K. Hemmick Bhawani Singh Yasuo Miake K. Deblasio Don Mcglinchey C. Gal M. Beaumier K. S. Joo Julia Velkovska D. K. Mishra M. Rosati Tamás Csörgő X. Bai H. A. Torii B. Kurgyis T. Sugitate45 M. E. Connors S. K. Park S. P. Whitaker Jiangyong Jia N. Apadula Y. Goto François Fleuret D. Kleinjan Z. Ji D. Yu Peressounko R. Petti Dennis Perepelitsa Z. Rowan M. Mendoza S. Esumi M. J. Skoby D. Sharma Senta Greene E. O'brien J. Huang B. Azmoun H. Ge Prakhar Garg K. Nakano M. Wysocki B. Bannier W. E. Sondheim T. Murakami R. Akimoto P. Kline K. S. Lee K. Boyle P. Steinberg M. Skolnik Takahiro Fusayasu S. I. Morrow S. Sawada Qiao Xu A. Franz T. V. Moukhanova J. Runchey D. Silvermyr Prashant Shukla S. F. Pate A. Yanovich Ke. Nakamura J. A. Key K. B. Lee D. Ivanishchev V. Papavassiliou C. E. Perezlara L. Ding E. J. Desmond M. Kofarago D. Roach K. M. Kijima K. Hashimoto Xingguo Li S. P. Sorensen J. G. Lajoie T. Hachiya Jennifer E. Perry M. Gonin M. I. Nagy D. Watanabe A. Sukhanov K. Kurita C. O. Kim R. Pak E. Vznuzdaev H. Sako J. Bryslawskyj A. Deshpande I. J. Choi B. Xia Dmitry Blau J. Hanks E. Vazquez-zambrano Balazs Ujvari I. E. Yushmanov Min-hye Kim A. Iordanova J. Murata Alexei Khanzadeev

subject

Quantum chromodynamics Physics Maple Meson production Meson 010308 nuclear & particles physics Nuclear Theory chemistry.chemical_element engineering.material 16. Peace & justice 01 natural sciences Copper Nuclear physics Fragmentation (mass spectrometry)chemistry 0103 physical sciences Quark–gluon plasma engineering High Energy Physics::Experiment Impact parameter Nuclear Experiment 010306 general physics

description

Production of π0 and η mesons has been measured at midrapidity in Cu+Au collisions at sNN=200GeV. Measurements were performed in π0(η)→γγ decay channel in the 1(2)-20GeV/c transverse momentum range. A strong suppression is observed for π0 and η meson production at high transverse momentum in central Cu+Au collisions relative to the p+p results scaled by the number of nucleon-nucleon collisions. In central collisions the suppression is similar to Au+Au with comparable nuclear overlap. The η/π0 ratio measured as a function of transverse momentum is consistent with mT-scaling parametrization down to pT=2GeV/c, its asymptotic value is constant and consistent with Au+Au and p+p and does not show any significant dependence on collision centrality. Similar results were obtained in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions as well as in e+e− collisions in a range of collision energies sNN=3−1800 GeV. This suggests that the quark-gluon-plasma medium produced in Cu+Cu collisions either does not affect the jet fragmentation into light mesons or it affects the π0 and η the same way.

year	journal	country	edition	language
2018-11-19	Physical Review C

https://doi.org/10.1103/physrevc.98.054903