Higher moments of multiplicity fluctuations in a hadron-resonance gas with exact conservation laws

التفاصيل البيبلوغرافية
العنوان: Higher moments of multiplicity fluctuations in a hadron-resonance gas with exact conservation laws
المؤلفون: Fu, Jing-Hua
المصدر: Phys. Rev. C 96, 034905 (2017)
سنة النشر: 2016
المجموعة: Nuclear Theory
مصطلحات موضوعية: Nuclear Theory
الوصف: Higher moments of multiplicity fluctuations of hadrons produced in central nucleus-nucleus collisions are studied within the hadron-resonance gas model in the canonical ensemble. Exact conservation of three charges, baryon number, electric charge, and strangeness, is enforced in the large volume limit. Moments up to the forth order of various particles are calculated at SPS, RHIC and LHC energies. The asymptotic fluctuations within a simplified model with only one conserved charge in the canonical ensemble are discussed where simple analytical expressions for moments of multiplicity distributions can be obtained. Moments products of net-proton, net-kaon, and net-charge distributions in Au + Au collisions at RHIC energies are calculated. The pseudo-rapidity coverage dependence of net-charge fluctuation is discussed.
Comment: 10 pages, 3 figures, V2: figures updated
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevC.96.034905
URL الوصول: http://arxiv.org/abs/1610.07138
رقم الأكسشن: edsarx.1610.07138
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevC.96.034905