منابع مشابه
Domain Walls in QCD
QCD was shown to have a nontrivial vacuum structure due to the topology of the θ ≡ θ+2πn parameter. As a result of this nontrivial topology, in the large Nc limit, quasi-stable QCD domain walls appear, characterized by a transition in the singlet η field. We discuss the physics of these QCD domain walls as well as related axion domain walls and we present a new type of axion wall which also con...
متن کاملTenacious Domain Walls in Supersymmetric QCD
We study the structure of the tenacious (existing for all values of masses of the matter fields) BPS domain walls interpolating between different chirally asymmetric vacua in supersymmetric QCD in the limit of large masses. We show that the wall consists in this case of three layers: two outer layers form a “coat” with the characteristic size ∼ Λ SYM and there is also the core with width ∼ m−1....
متن کاملDomain Walls in Large N Supersymmetric QCD
We explicitly construct BPS domain walls interpolating between neighboring chirally asymmetric vacua in the large N limit of pure supersymmetric QCD. The BPS equations for the corresponding ZN symmetric order parameter effective Lagrangian reduce to those in the AN Landau-Ginsburg model assuming that the higher derivative terms in the Kähler potential are suppressed in the large N limit. These ...
متن کاملDomain Walls Zoo in Supersymmetric QCD
Solving numerically the equations of motion for the effective lagrangian describing supersymmetric QCD with the SU(2) gauge group, we find a menagerie of complex domain wall solutions connecting different chirally asymmetric vacua. Some of these solutions are BPS-saturated walls; they exist when the mass of the matter fields does not exceed some critical value m < m∗ = 4.67059 . . .. There are ...
متن کاملDomain walls in supersymmetric QCD: from weak to strong coupling
We consider domain walls that appear in supersymmetric QCD with Nf , Nc massive flavors. In particular, for 2Nf , Nc we explicitly construct the domain walls that interpolate between vacua labeled by i and i 1 Nf . We show that these solutions are Bogomol’nyi-Prasad-Sommerfield saturated for any value of the mass of the matter fields. This fact allows us to evaluate the large mass limit of thes...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2001
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2001/10/013