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首页> 外文期刊>Physical review, C >D-meson production in p-Pb collisions at root S-NN=5.02 TeV and in pp collisions at root S=7 TeV
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D-meson production in p-Pb collisions at root S-NN=5.02 TeV and in pp collisions at root S=7 TeV

机译:D-Meson在Root S-Nn = 5.02 Tev的P-PB碰撞中产生,并在Root S = 7 Tev的PP碰撞中

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摘要

Background: In the context of the investigation of the quark gluon plasma produced in heavy-ion collisions, hadrons containing heavy (charm or beauty) quarks play a special role for the characterization of the hot and dense medium created in the interaction. The measurement of the production of charm and beauty hadrons in proton-proton collisions, besides providing the necessary reference for the studies in heavy-ion reactions, constitutes an important test of perturbative quantum chromodynamics (pQCD) calculations. Heavy-flavor production in proton-nucleus collisions is sensitive to the various effects related to the presence of nuclei in the colliding system, commonly denoted cold-nuclear-matter effects. Most of these effects are expected to modify open-charm production at low transverse momenta (p(T)) and, so far, no measurement of D-meson production down to zero transverse momentum was available at mid-rapidity at the energies attained at the CERN Large Hadron Collider (LHC).
机译:背景:在调查夸克胶血管等离子体中产生的重离子碰撞中的背景下,含有重(魅力或美容)夸克的强子在互动中产生的热和致密介质的表征起着特殊作用。 在质子 - 质子碰撞中,在质子 - 质子碰撞中产生的脉冲和美容的测量除了为重离子反应中的研究提供必要的参考,构成了扰动量子色谱(PQCD)计算的重要性。 质子 - 核碰撞中的重味浓度对与碰撞系统中核的存在相关的各种效果,通常表示冷核问题。 预计大多数这些效果将在低横向动量下修改开放式魅力,而且,到目前为止,没有测量D-Meson生产下降到零横向动量的测量可在达到的能量的中等快速上获得 CERN大型强子撞机(LHC)。

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