在sqrt(s_NN)=200 GeV的Au+Au碰撞中前向快度区的J/psi抑制
核实验
2019-08-13 v1
摘要
在相对论性重离子碰撞中，观测到重夸克偶素相对于按二核子碰撞数标度的p+p碰撞产额受到抑制。为确定这种抑制是否与产生介质中这些态的颜色屏蔽有关，需要考虑其他核修饰效应，包括冷核物质中的效应。本文展示了PHENIX 2007年数据集在sqrt(s_NN)=200 GeV的Au+Au碰撞中前向快度区（1.2<|y|<2.2）J/psi产额的新测量结果。数据证实了早先的发现，即前向快度区的J/psi抑制比中快度区更强，同时将测量扩展到更精细的碰撞中心度分档和更高的横动量（pT）。我们将实验数据与最新的理论计算进行了比较，这些计算包含了多种物理机制，包括胶子饱和、胶子阴影、初态部分子能量损失、冷核物质解离、颜色屏蔽和粲夸克复合。我们发现J/psi抑制超出了冷核物质效应。然而，模型与d+Au数据之间当前的不一致程度，阻碍了使用这些模型来量化热核物质抑制。
引用
@article{arxiv.1103.6269,
title = {J/psi suppression at forward rapidity in Au+Au collisions at sqrt(s_NN)=200 GeV},
author = {A. Adare and S. Afanasiev and C. Aidala and N. N. Ajitanand and Y. Akiba and H. Al-Bataineh and J. Alexander and K. Aoki and Y. Aramaki and E. T. Atomssa and R. Averbeck and T. C. Awes and B. Azmoun and V. Babintsev and M. Bai and G. Baksay and L. Baksay and K. N. Barish and B. Bassalleck and A. T. Basye and S. Bathe and V. Baublis and C. Baumann and A. Bazilevsky and S. Belikov and R. Belmont and R. Bennett and A. Berdnikov and Y. Berdnikov and A. A. Bickley and J. S. Bok and K. Boyle and M. L. Brooks and H. Buesching and V. Bumazhnov and G. Bunce and S. Butsyk and C. M. Camacho and S. Campbell and C. -H. Chen and C. Y. Chi and M. Chiu and I. J. Choi and R. K. Choudhury and P. Christiansen and T. Chujo and P. Chung and O. Chvala and V. Cianciolo and Z. Citron and B. A. Cole and M. Connors and P. Constantin and M. Csanád and T. Csörgő and T. Dahms and S. Dairaku and I. Danchev and K. Das and A. Datta and G. David and A. Denisov and A. Deshpande and E. J. Desmond and O. Dietzsch and A. Dion and M. Donadelli and O. Drapier and A. Drees and K. A. Drees and J. M. Durham and A. Durum and D. Dutta and S. Edwards and Y. V. Efremenko and F. Ellinghaus and T. Engelmore and A. Enokizono and H. En'yo and S. Esumi and B. Fadem and D. E. Fields and M. Finger, and M. Finger and F. Fleuret and S. L. Fokin and Z. Fraenkel and J. E. Frantz and A. Franz and A. D. Frawley and K. Fujiwara and Y. Fukao and T. Fusayasu and I. Garishvili and A. Glenn and H. Gong and M. Gonin and Y. Goto and R. Granier de Cassagnac and N. Grau and S. V. Greene and M. Grosse Perdekamp and T. Gunji and H. -Å. Gustafsson and J. S. Haggerty and K. I. Hahn and H. Hamagaki and J. Hamblen and J. Hanks and R. Han and E. P. Hartouni and E. Haslum and R. Hayano and M. Heffner and T. K. Hemmick and T. Hester and X. He and J. C. Hill and M. Hohlmann and W. Holzmann and K. Homma and B. Hong and T. Horaguchi and D. Hornback and S. Huang and T. Ichihara and R. Ichimiya and J. Ide and Y. Ikeda and K. Imai and M. Inaba and D. Isenhower and M. Ishihara and T. Isobe and M. Issah and A. Isupov and D. Ivanischev and B. V. Jacak and J. Jia and J. Jin and B. M. Johnson and K. S. Joo and D. Jouan and D. S. Jumper and F. Kajihara and S. Kametani and N. Kamihara and J. Kamin and J. H. Kang and J. Kapustinsky and K. Karatsu and D. Kawall and M. Kawashima and A. V. Kazantsev and T. Kempel and A. Khanzadeev and K. M. Kijima and B. I. Kim and D. H. Kim and D. J. Kim and E. J. Kim and E. Kim and S. H. Kim and Y. J. Kim and E. Kinney and K. Kiriluk and Á. Kiss and E. Kistenev and L. Kochenda and B. Komkov and M. Konno and J. Koster and D. Kotchetkov and A. Kozlov and A. Král and A. Kravitz and G. J. Kunde and K. Kurita and M. Kurosawa and Y. Kwon and G. S. Kyle and R. Lacey and Y. S. Lai and J. G. Lajoie and A. Lebedev and D. M. Lee and J. Lee and K. B. Lee and K. Lee and K. S. Lee and M. J. Leitch and M. A. L. Leite and E. Leitner and B. Lenzi and P. Liebing and L. A. Linden Levy and T. Liška and A. Litvinenko and H. Liu and M. X. Liu and X. Li and B. Love and R. Luechtenborg and D. Lynch and C. F. Maguire and Y. I. Makdisi and A. Malakhov and M. D. Malik and V. I. Manko and E. Mannel and Y. Mao and H. Masui and F. Matathias and M. McCumber and P. L. McGaughey and N. Means and B. Meredith and Y. Miake and A. C. Mignerey and P. Mikeš and K. Miki and A. Milov and M. Mishra and J. T. Mitchell and A. K. Mohanty and Y. Morino and A. Morreale and D. P. Morrison and T. V. Moukhanova and J. Murata and S. Nagamiya and J. L. Nagle and M. Naglis and M. I. Nagy and I. Nakagawa and Y. Nakamiya and T. Nakamura and K. Nakano and J. Newby and M. Nguyen and R. Nouicer and A. S. Nyanin and E. O'Brien and S. X. Oda and C. A. Ogilvie and K. Okada and M. Oka and Y. Onuki and A. Oskarsson and M. Ouchida and K. Ozawa and R. Pak and V. Pantuev and V. Papavassiliou and I. H. Park and J. Park and S. K. Park and W. J. Park and S. F. Pate and H. Pei and J. -C. Peng and H. Pereira and V. Peresedov and D. Yu. Peressounko and C. Pinkenburg and R. P. Pisani and M. Proissl and M. L. Purschke and A. K. Purwar and H. Qu and J. Rak and A. Rakotozafindrabe and I. Ravinovich and K. F. Read and K. Reygers and V. Riabov and Y. Riabov and E. Richardson and D. Roach and G. Roche and S. D. Rolnick and M. Rosati and C. A. Rosen and S. S. E. Rosendahl and P. Rosnet and P. Rukoyatkin and P. Ružička and B. Sahlmueller and N. Saito and T. Sakaguchi and K. Sakashita and V. Samsonov and S. Sano and T. Sato and S. Sawada and K. Sedgwick and J. Seele and R. Seidl and A. Yu. Semenov and R. Seto and D. Sharma and I. Shein and T. -A. Shibata and K. Shigaki and M. Shimomura and K. Shoji and P. Shukla and A. Sickles and C. L. Silva and D. Silvermyr and C. Silvestre and K. S. Sim and B. K. Singh and C. P. Singh and V. Singh and M. Slunečka and R. A. Soltz and W. E. Sondheim and S. P. Sorensen and I. V. Sourikova and N. A. Sparks and P. W. Stankus and E. Stenlund and S. P. Stoll and T. Sugitate and A. Sukhanov and J. Sziklai and E. M. Takagui and A. Taketani and R. Tanabe and Y. Tanaka and K. Tanida and M. J. Tannenbaum and S. Tarafdar and A. Taranenko and P. Tarján and H. Themann and T. L. Thomas and M. Togawa and A. Toia and L. Tomášek and H. Torii and R. S. Towell and I. Tserruya and Y. Tsuchimoto and C. Vale and H. Valle and H. W. van Hecke and E. Vazquez-Zambrano and A. Veicht and J. Velkovska and R. Vértesi and A. A. Vinogradov and M. Virius and V. Vrba and E. Vznuzdaev and X. R. Wang and D. Watanabe and K. Watanabe and Y. Watanabe and F. Wei and R. Wei and J. Wessels and S. N. White and D. Winter and J. P. Wood and C. L. Woody and R. M. Wright and M. Wysocki and W. Xie and Y. L. Yamaguchi and K. Yamaura and R. Yang and A. Yanovich and J. Ying and S. Yokkaichi and G. R. Young and I. Younus and Z. You and I. E. Yushmanov and W. A. Zajc and C. Zhang and S. Zhou and L. Zolin},
journal= {arXiv preprint arXiv:1103.6269},
year = {2019}
}
备注
384 authors from 65 institutions, 13 pages, 10 figures, and 4 tables. Submitted to Physical Review C. 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