scholarly journals Spectral function of a fermion coupled with a massive vector boson at finite temperature in a gauge invariant formalism

2011 ◽  
Vol 83 (4) ◽  
Author(s):  
Daisuke Satow ◽  
Yoshimasa Hidaka ◽  
Teiji Kunihiro
Keyword(s):  
Spectral Function ◽  
Finite Temperature ◽  
Vector Boson ◽  
Gauge Invariant ◽  
Massive Vector

scholarly journals Structures of the massive vector boson propagators at finite temperature illuminated by the Goldstone equivalence gauge

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Yi-Lei Tang
Keyword(s):  
Gauge Boson ◽  
Finite Temperature ◽  
Thermal Environment ◽  
Vector Boson ◽  
Goldstone Boson ◽  
Tree Level ◽  
Longitudinal Polarization ◽  
Zero Temperature ◽  
Massive Vector ◽  
Branch Cuts

Abstract Inspired by the Goldstone equivalence gauge, we study the thermal corrections to an originally massive vector boson by checking the poles and branch cuts. We find that part of the Goldstone boson is spewed out from the longitudinal polarization, becoming a branch cut which can be approximated by the “quasi-poles” in the thermal environment. In this case, physical Goldstone boson somehow partly recovers. We also show the Feynmann rules for the “external legs” of these vector boson as well as the recovered Goldstone boson, expecting to simplify the vector boson participated process calculations by adopting the similar “tree-level” logic as in the zero temperature situation. Gauge boson mixing case are also discussed. Similar results are shown in other gauges, especially in the Rξ gauge.

scholarly journals REMARKS ON A CHERN–SIMONS-LIKE COUPLING

2011 ◽  
Vol 26 (37) ◽  
pp. 2813-2821
Author(s):  
PATRICIO GAETE
Keyword(s):  
Gauge Theory ◽  
Vector Field ◽  
Static Potential ◽  
Gauge Invariant ◽  
Massive Vector ◽  
Hidden Sector ◽  
Dependent Variables ◽  
Qualitative Nature ◽  
Path Dependent ◽  
Chern Simons

We consider the static quantum potential for a gauge theory which includes a light massive vector field interacting with the familiar U (1) QED photon via a Chern–Simons-like coupling, by using the gauge-invariant, but path-dependent, variables formalism. An exactly screening phase is then obtained, which displays a marked departure of a qualitative nature from massive axionic electrodynamics. The above static potential profile is similar to that encountered in axionic electrodynamics consisting of a massless axion-like field, as well as to that encountered in the coupling between the familiar U (1) QED photon and a second massive gauge field living in the so-called U (1)h hidden-sector, inside a superconducting box.

scholarly journals The GUP Effect on Tunneling of Massive Vector Bosons from The 2+1 Dimensional Black Hole

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Ganim Gecim ◽  
Yusuf Sucu
Keyword(s):  
Black Hole ◽  
Angular Momentum ◽  
Total Angular Momentum ◽  
Vector Boson ◽  
Generalized Uncertainty Principle ◽  
Hawking Temperature ◽  
Massive Vector ◽  
Vector Bosons ◽  
Dimensional Black Hole ◽  
The Stability

In this study, the Generalized Uncertainty Principle (GUP) effect on the Hawking radiation formed by tunneling of a massive vector boson particle from the 2+1 dimensional new-type black hole was investigated. We used modified massive vector boson equation based on the GUP. Then, the Hamilton-Jacobi quantum tunneling approach was used to work out the tunneling probability of the massive vector boson particle and Hawking temperature of the black hole. Due to the GUP effect, the modified Hawking temperature was found to depend on the black hole properties, on the AdS3 radius, and on the energy, mass, and total angular momentum of the tunneling massive vector boson. In the light of these results, we also observed that modified Hawking temperature increases by the total angular momentum of the particle while it decreases by the energy and mass of the particle and the graviton mass. Also, in the context of the GUP, we see that the Hawking temperature due to the tunneling massive vector boson is completely different from both that of the spin-0 scalar and that of the spin-1/2 Dirac particles obtained in the previous study. We also calculate the heat capacity of the black hole using the modified Hawking temperature and then discuss influence of the GUP on the stability of the black hole.

scholarly journals Gauge-invariant renormalization group at finite temperature

1997 ◽  
Vol 498 (1-2) ◽  
pp. 443-466 ◽  
Author(s):  
M. D'Attanasio ◽  
M. Pietroni
Keyword(s):  
Renormalization Group ◽  
Finite Temperature ◽  
Gauge Invariant

scholarly journals Finite-temperature spectral function of the vector mesons in a holographic QCD model

2009 ◽  
Vol 80 (3) ◽  
Author(s):  
Mitsutoshi Fujita ◽  
Kenji Fukushima ◽  
Tatsuhiro Misumi ◽  
Masaki Murata
Keyword(s):  
Spectral Function ◽  
Finite Temperature ◽  
Vector Mesons ◽  
Holographic Qcd
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