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Czasopismo
2012 | 10 | 6 | 1352-1356
Tytuł artykułu

Di-lepton production in heavy-ion collisions and the QCD phase diagram

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
We reproduce di-electron spectra in the region of 0 < m e+e < 4 GeV in both minimum bias and central Au+Au collisions at $\sqrt {s_{NN} } $ = 200 GeV measured by the STAR experiment. A cocktail simulation, incorporating STAR acceptance and detector responses, is able to describe the “enhancement” of the low mass region by including an in-medium modification of vector mesons and a thermal di-lepton calculation. We also predict the di-lepton mass spectra in RHIC lower energies via an extrapolation method. The evolution of Di-lepton mass spectra, effective temperature, and possible medium modifications versus colliding energies are studied to explore the QCD phase diagram.
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
10
Numer
6
Strony
1352-1356
Opis fizyczny
Daty
wydano
2012-12-01
online
2012-12-04
Twórcy
autor
  • University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, China, ephy@ustc.edu.cn
autor
  • University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, China
autor
  • University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, China
autor
  • University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, China
Bibliografia
  • [1] R. Rapp, J. Wambach, Adv. Nucl. Phys. 25, 1 (2000) http://dx.doi.org/10.1007/0-306-47101-9_1[Crossref]
  • [2] R. Rapp, Phys. Rev. C 63, 054907 (2001) http://dx.doi.org/10.1103/PhysRevC.63.054907[Crossref]
  • [3] Z. Tang et al., Phys. Rev. C 79, 051901 (2009) http://dx.doi.org/10.1103/PhysRevC.79.051901[Crossref]
  • [4] B.I. Abelev et al. [STAR Collaboration], Phys. Rev. C 79, 034909 (2009) http://dx.doi.org/10.1103/PhysRevC.79.034909[Crossref]
  • [5] A. Adare et al. [PHENIX Collaboration], Phys. Rev. C 81, 034911 (2010) http://dx.doi.org/10.1103/PhysRevC.81.034911[Crossref]
  • [6] N.M. Kroll, W. Wada, Phys. Rev. 98, 1355 (1955) http://dx.doi.org/10.1103/PhysRev.98.1355[Crossref]
  • [7] R. Arnaldi et al., Phys. Lett. B 677, 260 (2009) http://dx.doi.org/10.1016/j.physletb.2009.05.029[Crossref]
  • [8] Y. Zhang [STAR Collaboration], J. Phys. G 38, 124142 (2011) http://dx.doi.org/10.1088/0954-3899/38/12/124142[Crossref]
  • [9] H. Xu et al., Phys. Rev. C 85, 024906 (2012) http://dx.doi.org/10.1103/PhysRevC.85.024906[Crossref]
  • [10] V.L. Eletsky et al., Phys. Rev. C 64, 035202 (2001) http://dx.doi.org/10.1103/PhysRevC.64.035202[Crossref]
  • [11] M. Anderson et al., Nucl. Instr. Meth. A 499, 659 (2003) http://dx.doi.org/10.1016/S0168-9002(02)01964-2[Crossref]
  • [12] J. Zhao [STAR Collaboration], J. Phys. G 38, 124134 (2011) http://dx.doi.org/10.1088/0954-3899/38/12/124134[Crossref]
  • [13] B. Zhang et al., Phys. Rev. C 61, 067901 (2000) http://dx.doi.org/10.1103/PhysRevC.61.067901[Crossref]
  • [14] L. Kumar [STAR Collaboration], J. Phys. G 38, 124145 (2011) http://dx.doi.org/10.1088/0954-3899/38/12/124145[Crossref]
  • [15] X. Zhang [STAR Collaboration], Acta Phys. Pol. Supp. B 5, 509 (2012) http://dx.doi.org/10.5506/APhysPolBSupp.5.509[Crossref]
  • [16] R. Vogt, Int. J. Mod. Phys. E 12, 211 (2003) http://dx.doi.org/10.1142/S0218301303001272[Crossref]
  • [17] J. Cleymans et al., Phys. Rev. C 73, 034905 (2006) http://dx.doi.org/10.1103/PhysRevC.73.034905[Crossref]
  • [18] R. Arnaldi et al., Phys. Rev. Lett. 100, 022302 (2008) http://dx.doi.org/10.1103/PhysRevLett.100.022302[Crossref]
  • [19] J. Deng et al., Phys. Lett. B 701, 581 (2011) http://dx.doi.org/10.1016/j.physletb.2011.06.027[Crossref]
  • [20] R. Chatterjee et al., Phys. Rev. C 75, 054909 (2007) http://dx.doi.org/10.1103/PhysRevC.75.054909[Crossref]
  • [21] P. Mohanty et al., Phys. Rev. C 85, 031903 (R) (2012) http://dx.doi.org/10.1103/PhysRevC.85.031903[Crossref]
  • [22] Y. Zhang, arXiv:0805.2202 [WoS]
  • [23] A. Adare et al. [PHENIX Collaboration], Phys. Rev. C 84, 044905 (2011) http://dx.doi.org/10.1103/PhysRevC.84.044905[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-012-0096-x
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