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arXiv 0805.3871hep-ex
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在$\sqrt{s}$ = 200 GeV在RHIC-PHENIX的p+p碰撞中的粲和底部产生的测量

Measurement of charm and bottom production in p+p collisions at $\sqrt{s}$ = 200 GeV at RHIC-PHENIX

Yuhei Morino

摘要:

RHIC-PHENIX在$\sqrt{s_{NN}} = 200$ GeV的Au+Au碰撞中观测到了中等快度非光子电子($\midη\mid<0.35$)的大的抑制斑图和方位各向异性.为了理解这些结果和热稠密介质中重夸克的相互作用,实验测定底夸克的粲产生比是最重要的课题之一,因为底夸克的行为可能不同于介质中的粲。通过对$\sqrt{s} = 200$ GeV p+p碰撞中D $^0$ $\to$ e $^+$ K $^-$ $ν_e$衰变的部分重建,我们测量了底的粲比和底的总截面.在$\sqrt{s} = 200$ GeV的p+p碰撞中,通过双电子连续谱测量了粲和底的总截面.

英文摘要:

RHIC-PHENIX has observed a large suppression pattern and azimuthal anisotropy of non-photonic electron at mid-rapidity ($\midη\mid<0.35$) in Au+Au collisions at $\sqrt{s_{NN}} = 200$ GeV. To understand these results and the interaction of heavy quarks in the hot and dense medium, experimental determination of production ratio of charm over bottom is one of the most important topics, since the behavior of bottom may differ from charm in the medium. We measured the ratio of charm over bottom and total cross section of bottom via partial reconstruction of D$^0$$\to$e$^+$ K$^-$ $ν_e$ decay in p+p collisions at $\sqrt{s} = 200$ GeV. Total cross sections of charm and bottom were also measured via di-electron continuum in p+p collisions at $\sqrt{s} = 200$ GeV.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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