Hot Quarks 2014: Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions | |
Study of strange mesons in p+p, d+Au and Cu+Cu collisions at = 200 GeV | |
Sett, Priyanka^1 | |
Nuclear Physics Division, Bhabha Atomic Research Center, Mumbai | |
400085, India^1 | |
关键词: Binary collisions; Center-of-mass energies; Light quarks; Nuclear matters; Nuclear modification factors; Transverse momenta; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/612/1/012063/pdf DOI : 10.1088/1742-6596/612/1/012063 |
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来源: IOP | |
【 摘 要 】
The PHENIX experiment at RHIC has measured invariant transverse momentum (pT) spectra and nuclear modification factor (RAB) of strange mesons K∗0and K0S, in p+p, d+Au and Cu+Cu collisions at center of mass energy 200 GeV. The pTrange of these measurements spans from 1.1 to 8.5 GeV/c for K∗0and from 2 to 13 GeV/c for K0S. Similar to the other light-quark mesons measurements, both these strange mesons show no cold-nuclear- matter effects in the measured pTrange in d+Au collisions. The nuclear modification factor for d+Au (RdAu) ≈ 1 and is almost constant as a function of pT. In case of Cu+Cu peripheral collisions, no suppression is registered with respect to the p+p yields scaled with number of binary collisions. In central Cu+Cu collisions, both mesons suffer substantial amount of suppression at high pT(> 5 GeV/c), which is similar to the suppression suffered by light-quark mesons. In the intermediate pTrange (2 T0) and more suppressed than baryons (p, p¯).
【 预 览 】
Files | Size | Format | View |
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Study of strange mesons in p+p, d+Au and Cu+Cu collisions at = 200 GeV | 862KB | download |