scholarly journals Family gauge boson mass estimated fromK+→π+νν¯

2015 ◽  
Vol 92 (3) ◽  
Author(s):  
Yoshio Koide
Keyword(s):  
Gauge Boson ◽  
Boson Mass ◽  
Gauge Boson Mass

scholarly journals A SCREENING MECHANISM FOR EXTRA W AND Z GAUGE BOSONS

2000 ◽  
Vol 15 (21) ◽  
pp. 3369-3394
Author(s):  
JOAQUIM MATIAS ◽  
ALESSANDRO VICINI
Keyword(s):  
Mass Spectrum ◽  
Gauge Boson ◽  
Extra Dimensions ◽  
Boson Mass ◽  
Gauge Bosons ◽  
Gauge Boson Mass ◽  
Kaluza Klein

We generalize a previous construction of a fermiophobic model to the case of more than one extra W and Z gauge bosons. We focus in particular on the existence of screening configurations and their implication on the gauge boson mass spectrum. One of these configurations allows for the existence of a set of relatively light new gauge bosons, without violation of the quite restrictive bounds coming from the ρ NC parameter. The links with Bess and degenerate Bess models are also discussed. Also the signal given here by this more traditional gauge extension of the SM could help to disentangle it from the towers of Kaluza–Klein states over W and Z gauge bosons in extra dimensions.

scholarly journals Contribution of right-handed neutrinos and standard fermions to W± and Z masses

2015 ◽  
Vol 30 (19) ◽  
pp. 1550094 ◽  
Author(s):  
Petr Beneš
Keyword(s):  
Gauge Boson ◽  
Decay Constant ◽  
Mass Matrix ◽  
Z Bosons ◽  
Boson Mass ◽  
Pion Decay ◽  
Pion Decay Constant ◽  
Left Handed ◽  
Gauge Boson Mass ◽  
The Masses

We present expressions of the Pagels–Stokar (PS) type for the masses of the [Formula: see text] and Z bosons in terms of the quark and lepton self-energies. By introducing a genuine new term in the gauge boson-fermion–anti-fermion vertex we manage to accomplish three main achievements: First, we show that the similar results existing in literature lead, in general, to a nonsymmetric gauge boson mass matrix and we fix this flaw. Second, we consider the case of any number of fermion generations with general mixing. Third, we include in our analysis also an arbitrary number of right-handed neutrinos, together with the left-handed and right-handed neutrino Majorana masses (self-energies). On top of that, we give also a correction to the original PS formula for the pion decay constant in QCD.

New bound on right-handed charged gauge boson mass

1993 ◽  
Vol 47 (9) ◽  
pp. R3693-R3696 ◽  
Author(s):  
Gautam Bhattacharyya ◽  
Amitava Datta ◽  
Amitava Raychaudhuri ◽  
Utpal Sarkar
Keyword(s):  
Gauge Boson ◽  
Boson Mass ◽  
Gauge Boson Mass

scholarly journals Influence of gauge boson mass on the staggered spin susceptibility

2014 ◽  
Vol 90 (7) ◽  
Author(s):  
Jian-Feng Li ◽  
Feng-Yao Hou ◽  
Zhu-Fang Cui ◽  
Hong-Tao Feng ◽  
Yu Jiang ◽  
...  
Keyword(s):  
Gauge Boson ◽  
Spin Susceptibility ◽  
Boson Mass ◽  
Gauge Boson Mass

scholarly journals EFFECT OF GAUGE BOSON MASS ON THE PHASE STRUCTURE OF QED3

2010 ◽  
Vol 25 (31) ◽  
pp. 2645-2653 ◽  
Author(s):  
JIAN-FENG LI ◽  
YU-QING ZHOU ◽  
HONG-TAO FENG ◽  
WEI-MIN SUN ◽  
HONG-SHI ZONG
Keyword(s):  
Phase Diagram ◽  
Chiral Symmetry ◽  
Gauge Boson ◽  
Finite Temperature ◽  
Cuprate Superconductors ◽  
Chiral Symmetry Breaking ◽  
Boson Mass ◽  
Antiferromagnetic Order ◽  
Chiral Phase ◽  
Gauge Boson Mass

Dynamical chiral symmetry breaking (DCSB) in QED3 with finite gauge boson mass is studied in the framework of the rainbow approximation of Dyson–Schwinger equations. By adopting a simple gauge boson propagator ansatz at finite temperature, we first numerically solve the Dyson–Schwinger equation for the fermion self-energy to determine the chiral phase diagram of QED3 with finite gauge boson mass at finite chemical potential and finite temperature, then we study the effect of the finite gauge mass on the phase diagram of QED3. It is found that the gauge boson mass ma suppresses the occurrence of DCSB. The area of the region in the chiral phase diagram corresponding to DCSB phase decreases as the gauge boson mass ma increases. In particular, chiral symmetry gets restored when ma is above a certain critical value. In this paper, we use DCSB to describe the antiferromagnetic order and use the gauge boson mass to describe the superconducting order. Our results give qualitatively a physical picture on the competition and coexistence between antiferromagnetic order and superconducting orders in high temperature cuprate superconductors.

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