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arXiv 2210.04503nucl-ex
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p-Pb碰撞中夸克偶素的产生

Quarkonium production in p-Pb collisions with ALICE

Biswarup Paul

摘要:

ALICE已经测量了p-Pb碰撞中夸克偶素的产生,其速度在后向($-$ 4.46 $<$ $y_{\rm cms}$ $<$ $-$ 2.96)、中向($-$ 1.37 $<$ $y_{\rm cms}$ $<$ 0.43)和前向(2.03 $<$ $y_{\rm cms}$ $<$ 3.53)快度区域,直到零横动量($p_{\rm T}$)。研究了$\sqrt{s_{\rm NN}}$ = 5.02 TeV的p-Pb相互作用中$y$和$\sqrt{s_{\rm NN}}$ = 5.02 TeV和8.16 TeV的p-Pb碰撞中正向和反向$y$的J/ $ψ$产生。讨论了J/ $ψ$产生与松散结合的$ψ$(2S)态产生的比较,以及在正向和反向$y$上测量的$Υ$(1 S)和$Υ$(2S)态核修饰因子的新结果。所有的结果将在较低的能量和可用的理论计算得到的那些进行比较。

英文摘要:

ALICE has measured quarkonium production in p-Pb collisions at backward ($-$4.46 $<$ $y_{\rm cms}$ $<$ $-$2.96), mid ($-$1.37 $<$ $y_{\rm cms}$ $<$ 0.43) and forward (2.03 $<$ $y_{\rm cms}$ $<$ 3.53) rapidity ($y$) regions down to zero transverse momentum ($p_{\rm T}$). The inclusive J/$ψ$ production has been studied at mid-$y$ in p-Pb interactions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV and at forward and backward $y$ in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV and 8.16 TeV. The comparison of the J/$ψ$ production to the one of the loosely bound $ψ$(2S) state is discussed, together with new results on the nuclear modification factors of the $Υ$(1S) and $Υ$(2S) states measured at forward and backward $y$. All the results will be compared to those obtained at lower energies and with available theoretical calculations.

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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