کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8182520 | 1526766 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ds± meson production in Au+Au collisions measured by the STAR experiment
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
In these proceedings, we present the first measurements of the nuclear modification factor (RAA) and elliptic flow (v2) for the Ds meson within the rapidity range |y|<1 in Au+Au collisions at sNN=200Â GeV from the STAR experiment. These results are compared with those of the D0 meson to study the hadronization mechanism of the charm quarks and probe the transport properties of the quark-gluon plasma [He M., Fries R. J., and Rapp R., Phys. Rev. Lett. 110, 112301 (2013)]. The DsRAA is found to be systematically higher than unity and D0RAA. The ratio of Ds/D0 yields in 10-40% central Au+Au collisions is also higher than that in p+p collisions as estimated by PYTHIA. All those indicate an enhancement of the Ds meson production in Au+Au collisions. The Ds/D0 yield ratio is also compared to that in Pb+Pb collisions at sNN=2.76Â TeV measured by the ALICE experiment, and they seem to follow the same trend.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear and Particle Physics Proceedings - Volumes 289â290, AugustâSeptember 2017, Pages 241-244
Journal: Nuclear and Particle Physics Proceedings - Volumes 289â290, AugustâSeptember 2017, Pages 241-244
نویسندگان
Long Zhou, STAR collaboration STAR collaboration,