论文标题

P-PB与爱丽丝碰撞的Quarkonium生产

Quarkonium production in p-Pb collisions with ALICE

论文作者

Paul, Biswarup

论文摘要

爱丽丝(Alice)在向后的P-PB碰撞中测量了Quarkonium的生产($ - $ 4.46 $ <$ <$ y _ _ _ {\ rm cms} $ $ <$ $ <$ $ - $ - $ - $ 2.96),中间($ 1.37 $ <$ <$ <$ y _ _ _ _ _ {\ rm cms} $ 0.43 $ $ <$ y $ y $ <$ y $ <$ <$ < 3.53)速度($ y $)区域降至零横向动量($ p _ {\ rm t} $)。包容性的J/$ψ$生产已在$ \ sqrt {s _ {s _ {\ rm nn}} $ = 5.02 tev和p-pb碰撞中的$ \ y $ $ y $ $ \ sqrt {讨论了J/$ψ$生产与松散约束的$ψ$(2S)状态之一的比较,以及有关$υ$(1S)和$υ$(2s)的核修饰因子的新结果,并在远期和后退$ y $中测量。将所有结果与在较低能量和可用的理论计算下获得的结果进行比较。

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.

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