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

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RESEARCH PRODUCT

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

L. Tomášek V. S. Pantuev T. Horaguchi Charles Maguire Kiyoshi Tanida 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 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 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 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 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 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 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 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 H. Pei

subject

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

description

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.

year	journal	country	edition	language
2010-09-27	Physical Review Letters

https://doi.org/10.1103/physrevlett.105.142301