Scaling of the charm cross-section and modification of charm p(T) spectra at RHIC
Scaling of the charm cross-section and modification of charm p(T) spectra at RHIC
复制标题
DOI：
10.1088/0954-3899/34/8/s86
复制
发表时间：
2007-02
期刊：
影响因子：
--
通讯作者：
C. Zhong
中科院分区：
文献类型：
--
作者：
C. Zhong
本文分析了在（NN）-N-S = 200 GeV Au+Au碰撞中D-0（D-0 -> K pi p（T）~ 2 GeV/c）直接重建和通过粲半轻子衰变（c -> e + X at 0.9 mu + X at 0.17 < pT < 0.25 GeV/ c）间接测量的粲产生。给出了D-0和重味衰变轻子的横动量谱和核修正因子。本文报道了从d+Au到Au+Au碰撞的粲散射截面随根（NN）-N-S = 200 GeV的碰撞次数的标度。
Charm production from the direct reconstruction of D-0 ( D-0 -> K pi p(T) up to 2 GeV/c) and indirect lepton measurements via charm semileptonic decays (c -> e + X at 0.9 mu + X at 0.17 < pT < 0.25 GeV/ c) at root(NN)-N-S = 200 GeV Au+Au collisions are analysed. The transverse momentum (p(T)) spectra and the nuclear modification factors for D-0 and for leptons from heavy flavour decays are presented. The scaling of charm cross- section with a number of binary collisions at root(NN)-N-S = 200 GeV from d+Au to Au+Au collisions is reported.