Effective field theory approach to open heavy flavor production in heavy-ion collisions

被引：78

作者：

Kang, Zhong-Bo ^{[1
,2
,3
]}

Ringer, Felix ^{[3
]}

Vitev, Ivan ^{[3
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Mani L Bhaumik Inst Theoret Phys, Los Angeles, CA 90095 USA

[3] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2017年 / 03期

关键词：

Heavy Ion Phenomenology; NLO Computations; COLLINEAR EFFECTIVE THEORY; PERTURBATIVE QCD FRAGMENTATION; DIFFERENTIAL CROSS-SECTION; TO-LEADING ORDER; ENERGY-LOSS; P(P)OVER-BAR COLLISIONS; SPLITTING KERNELS; MESON PRODUCTION; QUARK; FACTORIZATION;

D O I：

10.1007/JHEP03(2017)146

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We develop a version of Soft Collinear Effective Theory (SCET) which includes finite quark masses, as well as Glauber gluons that describe the interaction of collinear partons with QCD matter. In the framework of this new effective field theory, labeled SCETM,G, we derive the massive splitting functions in the vacuum and the QCD medium for the processes Q -> Q g, Q -> g Q and g -> QQ. The numerical effects due to finite quark masses are sizable and our results are consistent with the traditional approach to parton energy loss in the soft gluon emission limit. In addition, we present a new framework for including the medium-induced full splitting functions consistent with next-to-leading order calculations in QCD for inclusive hadron production. Finally, we show numerical results for the suppression of D-and B-mesons in heavy ion collisions at root S-NN = 5.02TeV and 2.76TeV and compare to available data from the LHC.

引用

页数：44

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