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arXiv 1606.07971hep-ph
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LHC能区$p$ + $p$和$p$ +Pb碰撞中D介子的产生

Production of D-mesons in $p$+$p$ and $p$+Pb collisions at LHC energies

R. C. Baral, S. K. Tripathy, M. Younus, Z. Naik, P. K. Sahu

摘要:

本文给出了D介子(D $^0$、D $^+$和D $^{*+}$)在$p$ + $p$碰撞($\sqrt{s}$ = 7 TeV)和$p$ +Pb碰撞($\sqrt{s_{NN}}$ $\sqrt{s_{NN}}$ = 5.02 TeV)中的理论模型,并与已发表的ALICE结果进行了比较.事件发生器HIJING,AMPT的输运计算以及NLO(MNR)和FONLL的计算已用于本研究。我们发现HIJING和AMPT模型在$p$ + $p$碰撞中的预测与已发表的D介子截面相匹配,而在$p$ +Pb碰撞中的预测则偏低。尝试使用NLO-pQCD(MNR)、FONLL和其他上述模型解释$R_{pPb}$数据。

英文摘要:

We present theoretical model comparison with published ALICE results for D-mesons (D$^0$, D$^+$ and D$^{*+}$) in $p$+$p$ collisions at $\sqrt{s}$ = 7 TeV and $p$+Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV. Event generator HIJING, transport calculation of AMPT and calculations from NLO(MNR) and FONLL have been used for this study. We found that HIJING and AMPT model predictions are matching with published D-meson cross-sections in $p$+$p$ collisions, while both under-predict the same in $p$+Pb collisions. Attempts were made to explain the $R_{pPb}$ data using NLO-pQCD(MNR), FONLL and other above mentioned models.

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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