在质心能量平方根√(sNN)=200 GeV的金离子与金离子碰撞以及质子与质子碰撞中，对平均横向动量的非随机逐事件涨落进行测量。
Measurement of nonrandom event-by-event fluctuations of average transverse momentum in square root of (sNN)=200 GeV Au+Au and p+p collisions.
作者信息
Adler S S, Afanasiev S, Aidala C, Ajitanand N N, Akiba Y, Alexander J, Amirikas R, Aphecetche L, Aronson S H, Averbeck R, Awes T C, Azmoun R, Babintsev V, Baldisseri A, Barish K N, Barnes P D, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bazilevsky A, Belikov S, Berdnikov Y, Bhagavatula S, Boissevain J G, Borel H, Borenstein S, Brooks M L, Brown D S, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J M, Butsyk S, Camard X, Chai J-S, Chand P, Chang W C, Chernichenko S, Chi C Y, Chiba J, Chiu M, Choi I J, Choi J, Choudhury R K, Chujo T, Cianciolo V, Cobigo Y, Cole B A, Constantin P, d'Enterria D G, David G, Delagrange H, Denisov A, Deshpande A, Desmond E J, Dietzsch O, Drapier O, Drees A, du Rietz R, Durum A, Dutta D, Efremenko Y V, El Chenawi K, Enokizono A, En'yo H, Esumi S, Ewell L, Fields D E, Fleuret F, Fokin S L, Fox B D, Fraenkel Z, Frantz J E, Franz A, Frawley A D, Fung S-Y, Garpman S, Ghosh T K, Glenn A, Gogiberidze G, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene S V, Grosse Perdekamp M, Guryn W, Gustafsson H-A, Hachiya T, Haggerty J S, Hamagaki H, Hansen A G, Hartouni E P, Harvey M, Hayano R, He X, Heffner M, Hemmick T K, Heuser J M, Hibino M, Hill J C, Holzmann W, Homma K, Hong B, Hoover A, Ichihara T, Ikonnikov V V, Imai K, Isenhower D, Ishihara M, Issah M, Isupov A, Jacak B V, Jang W Y, Jeong Y, Jia J, Jinnouchi O, Johnson B M, Johnson S C, Joo K S, Jouan D, Kametani S, Kamihara N, Kang J H, Kapoor S S, Katou K, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim D H, Kim D J, Kim D W, Kim E, Kim G-B, Kim H J, Kistenev E, Kiyomichi A, Kiyoyama K, Klein-Boesing C, Kobayashi H, Kochenda L, Kochetkov V, Koehler D, Kohama T, Kopytine M, Kotchetkov D, Kozlov A, Kroon P J, Kuberg C H, Kurita K, Kuroki Y, Kweon M J, Kwon Y, Kyle G S, Lacey R, Ladygin V, Lajoie J G, Lebedev A, Leckey S, Lee D M, Lee S, Leitch M J, Li X H, Lim H, Litvinenko A, Liu M X, Liu Y, Maguire C F, Makdisi Y I, Malakhov A, Manko V I, Mao Y, Martinez G, Marx M D, Masui H, Matathias F, Matsumoto T, McGaughey P L, Melnikov E, Messer F, Miake Y, Milan J, Miller T E, Milov A, Mioduszewski S, Mischke R E, Mishra G C, Mitchell J T, Mohanty A K, Morrison D P, Moss J M, Mühlbacher F, Mukhopadhyay D, Muniruzzaman M, Murata J, Nagamiya S, Nagle J L, Nakamura T, Nandi B K, Nara M, Newby J, Nilsson P, Nyanin A S, Nystrand J, O'Brien E, Ogilvie C A, Ohnishi H, Ojha I D, Okada K, Ono M, Onuchin V, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek A P T, Pantuev V S, Papavassiliou V, Park J, Parmar A, Pate S F, Peitzmann T, Peng J-C, Peresedov V, Pinkenburg C, Pisani R P, Plasil F, Purschke M L, Purwar A K, Rak J, Ravinovich I, Read K F, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosnet P, Ryu S S, Sadler M E, Saito N, Sakaguchi T, Sakai M, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato H D, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shaw M R, Shea T K, Shibata T-A, Shigaki K, Shiina T, Silva C L, Silvermyr D, Sim K S, Singh C P, Singh V, Sivertz M, Soldatov A, Soltz R A, Sondheim W E, Sorensen S P, Sourikova I V, Staley F, Stankus P W, Stenlund E, Stepanov M, Ster A, Stoll S P, Sugitate T, Sullivan J P, Takagui E M, Taketani A, Tamai M, Tanaka K H, Tanaka Y, Tanida K, Tannenbaum M J, Tarján P, Tepe J D, Thomas T L, Tojo J, Torii H, Towell R S, Tserruya I, Tsuruoka H, Tuli S K, Tydesjö H, Tyurin N, van Hecke H W, Velkovska J, Velkovsky M, Villatte L, Vinogradov A A, Volkov M A, Vznuzdaev E, Wang X R, Watanabe Y, White S N, Wohn F K, Woody C L, Xie W, Yang Y, Yanovich A, Yokkaichi S, Young G R, Yushmanov I E, Zajc W A, Zhang C, Zhou S, Zhou S J, Zolin L
机构信息
Brookhaven National Laboratory, Upton, New York 11973-5000, USA.
出版信息
Phys Rev Lett. 2004 Aug 27;93(9):092301. doi: 10.1103/PhysRevLett.93.092301. Epub 2004 Aug 24.
Event-by-event fluctuations of the average transverse momentum of produced particles near midrapidity have been measured by the PHENIX Collaboration in square root of (sNN)=200 GeV Au+Au, and p+p collisions at the Relativistic Heavy Ion Collider. The fluctuations are observed to be in excess of the expectation for statistically independent particle emission for all centralities. The excess fluctuations exhibit a dependence on both the centrality of the collision and on the pT range over which the average is calculated. Both the centrality and pT dependence can be well reproduced by a simulation of random particle production with the addition of contributions from hard-scattering processes.
相对论重离子对撞机上，PHENIX合作组测量了（sNN）平方根=200 GeV金离子+金离子对撞以及质子+质子对撞中，快度中心区域附近产生粒子平均横向动量的逐事件涨落。观察到，所有中心度下的涨落都超出了统计独立粒子发射的预期。涨落超出部分既依赖于碰撞的中心度，也依赖于计算平均值所用的横向动量范围。中心度和横向动量依赖关系都可以通过在随机粒子产生模拟中加入硬散射过程的贡献来很好地重现。
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