The holographic QCD axion

被引：9

作者：

Bigazzi, Francesco ^{[1
]}

Caddeo, Alessio ^{[1
,2
]}

Cotrone, Aldo L. ^{[1
,2
]}

Di Vecchia, Paolo ^{[3
,4
,5
]}

Marzolla, Andrea ^{[1
,2
,6
,7
]}

机构：

[1] INFN, Sez Firenze, Via G Sansone 1, I-50019 Florence, Italy

[2] Univ Firenze, Dipartimento Fis & Astron, Via G Sansone 1, I-50019 Florence, Italy

[3] Univ Copenhagen, Niels Bohr Inst, Blegdamsvej 17, DK-2100 Copenhagen, Denmark

[4] KTH Royal Inst Technol, Nordita, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden

[5] Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden

[6] Ctr Atom Bariloche, R8402AGP, Rio Negro, Argentina

[7] CONICET SC Bariloche, R8402AGP, Rio Negro, Argentina

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2019年 / 2019卷 / 12期

关键词：

AdS-CFT Correspondence; Gauge-gravity correspondence; Chiral Lagrangians; Cosmology of Theories beyond the SM; FINITE-TEMPERATURE QCD; INSTANTON DYNAMICS; CP CONSERVATION; CONFINEMENT; DEPENDENCE; INVARIANCE; BARYONS;

D O I：

10.1007/JHEP12(2019)056

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：

A holographic model of QCD axion is presented. It describes a composite axion in the KSVZ class. Having a gravity dual, based on the Witten-Sakai-Sugimoto model, it is calculable in the strongly coupled regime. Its basic properties are derived, including the low energy Lagrangian, from which the axion couplings to nucleons can be derived. Basic features in the deconfined phase are studied as well. In particular, the temperature dependence of the axion mass is extracted from the topological susceptibility. As an aside, the topological susceptibility of strongly coupled N = 4 SYM at finite temperature is derived for the first time.

引用

页数：42

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