论文标题
在$ \ sqrt {s _ {\ rm nn}} = 5.02 $和2.76 TEV的PB-PB碰撞中，在pb-pb碰撞中高横向动量产生的MUON在pb-pb碰撞中的高潮流衰变。
Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ and 2.76 TeV
论文作者
论文摘要
报告了使用LHC的爱丽丝检测器使用Alice Tecter，测量了Pb $ -PB碰撞中重型流动强体衰变的MUON腐烂腐烂的测量。核修饰因子$ r _ {\ rm aa} $ at $ \ sqrt {s _ {\ rm nn}} $ = 5.02 tev以远期快速度（$ 2.5 <y <4 $）（the \ rm p _ {$ 2.5 <y <4 $）的函数，均与中央，crivisip in Central，semi-Centrivision in Central，semi-Centrivision $ p _ {\ rm t} $间隔，$ 3 <p _ {\ rm t} <20 $ gev/$ c $，其中预计来自美容 - 哈德隆衰败的兆次将从魅力中接管，作为高$ p _ {\ rm t} $的主要来源（\ rm t} $（$ p _ p _ {$ p _ {$ p _ {$ rm tm t} $ g $ g $ c $ c $ c $ c $ c。 $ r _ {\ rm aa} $显示出抑制重型燃烧器衰变的MUON产量的抑制，并增加了中心性。在$ 10 \％$中，大约三个中央碰撞的抑制作用约为三倍。 $ r _ {\ rm aa} $ at $ \ sqrt {s _ {\ rm nn}} $ = 5.02与2.76 TEV相似。精确的$ r _ {\ rm aa} $测量值有可能区分模型预测，以实现在重合离子碰撞中形成的高密度培养基中的不同机制。他们对与热QCD培养基的重量相互作用的理解放置了重要的限制。
Measurements of the production of muons from heavy-flavour hadron decays in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = $5.02$ and $2.76$ TeV using the ALICE detector at the LHC are reported. The nuclear modification factor $R_{\rm AA}$ at $\sqrt{s_{\rm NN}}$ = 5.02 TeV is measured at forward rapidity ($2.5 < y <4$) as a function of transverse momentum $p_{\rm T}$ in central, semi-central, and peripheral collisions over a wide $p_{\rm T}$ interval, $3 < p_{\rm T} < 20$ GeV/$c$, in which muons from beauty-hadron decays are expected to take over from charm as the dominant source at high $p_{\rm T}$ ($p_{\rm T} > 7$ GeV/$c$). The $R_{\rm AA}$ shows an increase of the suppression of the yields of muons from heavy-flavour hadron decays with increasing centrality. A suppression by a factor of about three is observed in the $10\%$ most central collisions. The $R_{\rm AA}$ at $\sqrt{s_{\rm NN}}$ = 5.02 is similar to that at 2.76 TeV. The precise $R_{\rm AA}$ measurements have the potential to distinguish between model predictions implementing different mechanisms of parton energy loss in the high-density medium formed in heavy-ion collisions. They place important constraints for the understanding of the heavy-quark interaction with the hot and dense QCD medium.
