کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8182571 | 1526766 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
J/Ï production in proton+proton and heavy-ion collisions at STAR
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: J/Ï production in proton+proton and heavy-ion collisions at STAR J/Ï production in proton+proton and heavy-ion collisions at STAR](/preview/png/8182571.png)
چکیده انگلیسی
Measurements of J/Ï production in proton+proton and Au+Au collisions using the STAR detector are presented. The differential cross-sections measured through both the dielectron and dimuon channels in proton+proton collisions at s=200 and 500 GeV have reasonable agreement with CEM, CGC+NRQCD and NLO NRQCD predictions in kinematic ranges in which these models are applicable. Additionally, the ratio of production cross-section times the dielectron branching fraction of Ï(2S) to J/Ï is consistent with other experiments and the relative J/Ï yield as a function of the relative charged-particle multiplicity can be qualitatively described by theoretical predictions. In Au+Au collisions at sNN=200Â GeV, the nuclear modification factor (RAA) compared with transport models and J/Ï elliptic flow (v2) as a function of transverse momentum are also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear and Particle Physics Proceedings - Volumes 289â290, AugustâSeptember 2017, Pages 385-388
Journal: Nuclear and Particle Physics Proceedings - Volumes 289â290, AugustâSeptember 2017, Pages 385-388
نویسندگان
Yi Yang, STAR Collaboration STAR Collaboration,