Pseudorapidity distribution of charged particles in d+Au collisions at sqrt[sNN]=200 GeV.

Pseudorapidity distribution of charged particles in d+Au collisions at sqrt[sNN]=200 GeV.
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DOI：
10.1103/physrevlett.93.082301
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发表时间：
2003-11
期刊：
Physical review letters
影响因子：
8.6
通讯作者：
B. Back;M. Baker;M. Ballintijn;D. Barton;B. Becker;R. Betts;A. Bickley;R. Bindel;W Busza-;A. Carroll;M. Decowski;E. Garcia;T. Gburek;N. George;K. Gulbrandsen;S. Gushue;C. Halliwell;J. Hamblen;A. Harrington;C. Henderson;D. Hofman;R. Hollis;R. Hołyński;B. Holzman;A. Iordanova;E. Johnson;J. Kane;N. Khan;P. Kulinich;C. Kuo;J. Lee;W. Lin;S. Manly;A. Mignerey;R. Nouicer;A. Olszewski;R. Pak;I. Park;H. Pernegger;C. Reed;C. Roland;G. Roland;J. Sagerer;P. Sarin;I. Sedykh;W. Skulski;C. E. Smith;P. Steinberg;G S F Stephans-;A. Sukhanov;M. Tonjes;A. Trzupek;C. Vale;G. van Nieuwenhuizen;R. Verdier;G. Veres;F. Wolfs;B. Wosiek;K. Woźniak;B Wysłouch-;J. Zhang
B. Back;M. Baker;M. Ballintijn;D. Barton;B. Becker;R. Betts;A. Bickley;R. Bindel;W Busza-;A. Carroll;M. Decowski;E. Garcia;T. Gburek;N. George;K. Gulbrandsen;S. Gushue;C. Halliwell;J. Hamblen;A. Harrington;C. Henderson;D. Hofman;R. Hollis;R. Hołyński;B. Holzman;A. Iordanova;E. Johnson;J. Kane;N. Khan;P. Kulinich;C. Kuo;J. Lee;W. Lin;S. Manly;A. Mignerey;R. Nouicer;A. Olszewski;R. Pak;I. Park;H. Pernegger;C. Reed;C. Roland;G. Roland;J. Sagerer;P. Sarin;I. Sedykh;W. Skulski;C. E. Smith;P. Steinberg;G S F Stephans-;A. Sukhanov;M. Tonjes;A. Trzupek;C. Vale;G. van Nieuwenhuizen;R. Verdier;G. Veres;F. Wolfs;B. Wosiek;K. Woźniak;B Wysłouch-;J. Zhang
中科院分区：
物理与天体物理1区
文献类型：
--
作者：
B. Back;M. Baker;M. Ballintijn;D. Barton;B. Becker;R. Betts;A. Bickley;R. Bindel;W Busza-;A. Carroll;M. Decowski;E. Garcia;T. Gburek;N. George;K. Gulbrandsen;S. Gushue;C. Halliwell;J. Hamblen;A. Harrington;C. Henderson;D. Hofman;R. Hollis;R. Hołyński;B. Holzman;A. Iordanova;E. Johnson;J. Kane;N. Khan;P. Kulinich;C. Kuo;J. Lee;W. Lin;S. Manly;A. Mignerey;R. Nouicer;A. Olszewski;R. Pak;I. Park;H. Pernegger;C. Reed;C. Roland;G. Roland;J. Sagerer;P. Sarin;I. Sedykh;W. Skulski;C. E. Smith;P. Steinberg;G S F Stephans-;A. Sukhanov;M. Tonjes;A. Trzupek;C. Vale;G. van Nieuwenhuizen;R. Verdier;G. Veres;F. Wolfs;B. Wosiek;K. Woźniak;B Wysłouch-;J. Zhang

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首次给出了sqrt[s（NN）]=200 GeV最小偏压d+Au碰撞中初级带电粒子赝快度分布的测量结果.与氘方向相比，这种分布在金方向上福尔斯得不那么快。中快度时带电粒子赝快度密度的平均值为：|eta| <或=0.6）=9.4+/-0.7（syst），并且在测量区域中的积分初级带电粒子多重性为82+/-6（syst）。总带电粒子生产的估计，外推的基础上测得的赝快度区域，也提出。将d+Au碰撞中参与者的数量归一化的赝快度分布与相同能量下的Au+Au和p+（-）p系统的赝快度分布进行比较。的d+Au分布的部分子饱和模型的预测，以及微观模型进行了比较。
The measured pseudorapidity distribution of primary charged particles in minimum-bias d+Au collisions at sqrt[s(NN)]=200 GeV is presented for the first time. This distribution falls off less rapidly in the gold direction as compared to the deuteron direction. The average value of the charged particle pseudorapidity density at midrapidity is |eta|< or =0.6)=9.4+/-0.7(syst) and the integrated primary charged particle multiplicity in the measured region is 82+/-6(syst). Estimates of the total charged particle production, based on extrapolations outside the measured pseudorapidity region, are also presented. The pseudorapidity distribution, normalized to the number of participants in d+Au collisions, is compared to those of Au+Au and p+(-)p systems at the same energy. The d+Au distribution is also compared to the predictions of the parton saturation model, as well as microscopic models.