منابع مشابه
Spontaneously broken mass
The Galilei group involves mass as a central charge. We show that the associated superselection rule is incompatible with the observed phenomenology of superfluid helium 4: this is recovered only under the assumption that mass is spontaneously broken. This remark is somewhat immaterial for the real world, where the correct space-time symmetries are encoded by the Poincaré group, which has no ce...
متن کاملspontaneously-broken chiral symmetry
We present and discuss the properties and the main results of a cosmological model with a spontaneously-broken chiral symmetry. The model contains and relates dynamically, two spin-zero fields. The scalar field can provide the dynamical basis for inflation in the early universe. The pseudoscalar, Goldstone field can provide an early, small residual vacuum energy density, the absolute value of w...
متن کاملSpontaneously broken color
The vacuum of QCD is characterized by the Higgs mechanism. Color is " spontaneously broken " by a quark-antiquark condensate in the octet representation. The massive gluons carry integer electric charges and are identified with the vector mesons. The fermionic ex-citations consist of the low mass baryon octet and a singlet. The interactions between these particles and the light pseudoscalar oct...
متن کاملSpontaneously broken quark helicity symmetry
Abstract We show how quark helicity symmetry can be spontaneously broken in SU(N) gauge theory when that theory is quantized in the light-cone representation. The symmetry breaking is implemented by induced operators. These operators result from the fact that the vacuum is not trivial, but involves a condensate of fermionic zero modes. We show that the light-cone eigenvalue problem can be equiv...
متن کاملDynamical Model of Spontaneously Broken Gauge Symmetries
We demonstrate how a theory consisting of massless Fermi and vector-meson fields can lead to an excitation spectrum of solely massive particles. We eschew spinless Bose fields in the fundamental Lagrangian, contrary to current practice, A detailed model is presented and solved in lowest order. Fermion and axial-vector-meson masses are spontaneously generated, and the vector particle's mass is c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2015
ISSN: 1029-8479
DOI: 10.1007/jhep01(2015)146