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Vonk, T; Guo, FK; Meissner, UG
Aspects of the QCD -vacuum
AbstractThis paper addresses two aspects concerning the -vacuum of Quantum Chro-modynamics. First, large-N-c chiral perturbation theory is used to calculate the first two non-trivial cumulants of the distribution of the winding number, i.e. the topological susceptibility, (top), and the fourth cumulant, c(4), up to next-to-leading order. Their large-N-c scaling is discussed, and compared to lattice results. It is found that in the literature. Second, we discuss the properties of QCD at approximate to using chiral perturbation theory for the case of 2 + 1 light flavors, i.e. by taking the strange quark mass heavier than the degenerate up and down quark masses. It is shown that in accordance with previous findings for N-f = 2 and N-f = 3 mass-degenerate flavors in the region approximate to two vacuum states coexist, which become degenerate at = . The wall tension of the energy barrier between these degenerate vacua is determined as well as the decay rate of a false vacuum.
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
Indexed BySCIE
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.[Vonk, Thomas
2.Meissner, Ulf-G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
3.Meissner, Ulf-G.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
6.[Meissner, Ulf-G.] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany
7.[Meissner, Ulf-G.] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
8.[Meissner, Ulf-G.] Tbilisi State Univ, GE-0186 Tbilisi, Georgia
Recommended Citation
GB/T 7714
Vonk, T,Guo, FK,Meissner, UG. Aspects of the QCD -vacuum[J]. JOURNAL OF HIGH ENERGY PHYSICS,2019(6):106.
APA Vonk, T,Guo, FK,&Meissner, UG.(2019).Aspects of the QCD -vacuum.JOURNAL OF HIGH ENERGY PHYSICS(6),106.
MLA Vonk, T,et al."Aspects of the QCD -vacuum".JOURNAL OF HIGH ENERGY PHYSICS .6(2019):106.
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