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Lu, Zhen-Yan; Du, Meng-Lin; Guo, Feng-Kun; Meissner, Ulf-G; Vonk, Thomas5,5
QCD theta-vacuum energy and axion properties
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordCHIRAL PERTURBATION-THEORY CP CONSERVATION MASS INVARIANCE PHYSICS SEARCH DECAYS ETA
AbstractAt low energies, the strong interaction is governed by the Goldstone bosons associated with the spontaneous chiral symmetry breaking, which can be systematically described by chiral perturbation theory. In this paper, we apply this theory to study the theta -vacuum energy density and hence the QCD axion potential up to next-to-leading order with N non-degenerate quark masses. By setting N = 3, we then derive the axion mass, self-coupling, topological susceptibility and the normalized fourth cumulant both analytically and numerically, taking the strong isospin breaking effects into account. In addition, the model-independent part of the axion-photon coupling, which is important for axion search experiments, is also extracted from the chiral Lagrangian supplemented with the anomalous terms up to O mml:mfenced close=")" open="("p6mml:mfenced>.
2020
ISSN1029-8479
Issue5
Cooperation Status国际
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1007/JHEP05(2020)001
Indexed BySCIE
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27073
CollectionSCI期刊论文
Affiliation1.Hunan Univ Sci & Technol, Sch Phys & Elect Sci, Xiangtan 411201, Peoples R China
2.[Lu, Zhen-Yan
3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
4.[Du, Meng-Lin
5.Meissner, Ulf-G
6.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
7.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
8.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
9.Forschungszentrum Julich, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany
10.Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
11.Tbilisi State Univ, GE-0186 Tbilisi, Georgia
Recommended Citation
GB/T 7714
Lu, Zhen-Yan,Du, Meng-Lin,Guo, Feng-Kun,et al. QCD theta-vacuum energy and axion properties[J]. JOURNAL OF HIGH ENERGY PHYSICS,2020(5).
APA Lu, Zhen-Yan,Du, Meng-Lin,Guo, Feng-Kun,Meissner, Ulf-G,&Vonk, Thomas.(2020).QCD theta-vacuum energy and axion properties.JOURNAL OF HIGH ENERGY PHYSICS(5).
MLA Lu, Zhen-Yan,et al."QCD theta-vacuum energy and axion properties".JOURNAL OF HIGH ENERGY PHYSICS .5(2020).
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