Scaling properties and charge dependence of particle ratio fluctuations at RHIC

• Autorzy: Hui Wang
• Języki publikacji: EN

Abstrakty

EN

It has been suggested that the existence of a QCD phase transition would cause an increase and divergence of fluctuations. Thus event-by-event particle ratio fluctuations could be used to study strangeness and baryon number fluctuations near the critical point in the QCD phase diagram. In this paper, we present dynamical K/π, p/π, and K/p ratio fluctuations from Au+Au collisions at $\sqrt {s_{NN} } $ = 7.7 to 200 GeV. Charge dependent results as well as multiplicity scaling properties of these fluctuation results are discussed. The STAR data are compared to different theoretical model predictions and previous experimental results.

Słowa kluczowe

EN

particle ratio fluctuations; multiplicity scaling; charge dependent fluctuations

• Czasopismo: Open Physics
• Rocznik: 2012
• Tom: 10
• Numer: 6
• Strony: 1282-1284

Daty

wydano

2012-12-01

online

2012-12-04

Twórcy

autor

Hui Wang

• National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI, 48824-1321, USA,

Bibliografia

• [1] V. Koch, A. Majumder, J. Randrup, Phys. Rev. Lett. 95, 182301 (2005) http://dx.doi.org/10.1103/PhysRevLett.95.182301
• [2] S.V. Afanasiev et al. [NA49 collaboration], Phys. Rev. Lett. 86, 1965 (2001) http://dx.doi.org/10.1103/PhysRevLett.86.1965[Crossref]
• [3] C. Pruneau, S. Gavin, S. Voloshin, Phys. Rev. C 66, 044904 (2002) http://dx.doi.org/10.1103/PhysRevC.66.044904
• [4] V. Koch, T. Schuster, Phys. Rev. C 81, 034910 (2010) http://dx.doi.org/10.1103/PhysRevC.81.034910
• [5] C. Alt et al., Phys. Rev. C 79, 044910 (2009) http://dx.doi.org/10.1103/PhysRevC.79.044910
• [6] B.I. Abelev et al. (for the STAR Collaboration), Phys. Rev. Lett. 103, 092301 (2009) http://dx.doi.org/10.1103/PhysRevLett.103.092301
• [7] T.J. Tarnowsky (for the STAR Collaboration), J. Phys. G: Nucl. Part. Phys. 38, 124054 (2011) http://dx.doi.org/10.1088/0954-3899/38/12/124054
• [8] T.J. Tarnowsky (for the STAR Collaboration), J. Phys. G 38, 124054 (2011) http://dx.doi.org/10.1088/0954-3899/38/12/124054
• [9] T.J. Tarnowsky (for the STAR Collaboration), Acta Phys. Polon. Supp. 5, 515 (2012) http://dx.doi.org/10.5506/APhysPolBSupp.5.515[Crossref]
• [10] M.M. Aggarwal et al. (for the STAR Collaboration), arXiv:1007.2613v1 [nucl-ex]
• [11] T. Anticic et al. [NA49 collaboration], Phys. Rev. C 83, 061902(R) (2011) http://dx.doi.org/10.1103/PhysRevC.83.061902
• [12] D. Kresan, V. Friese, PoS(CFRNC2006)017

Identyfikatory

DOI

10.2478/s11534-012-0095-y