Spontaneous breaking of flavor symmetry and parity in lattice QCD with wilson fermions

1992 ◽  
Vol 45 (10) ◽  
pp. 3845-3853 ◽  
Author(s):  
S. Aoki ◽  
A. Gocksch
Keyword(s):  
Lattice Qcd ◽  
Spontaneous Breaking ◽  
Flavor Symmetry ◽  
Wilson Fermions

scholarly journals Gauge-fixed Lattice QCD and the dispersion relation of Wilson fermions

2022 ◽  
Vol 258 ◽  
pp. 02003
Author(s):  
Giuseppe Burgio ◽  
Hannes Vogt
Keyword(s):  
Dispersion Relation ◽  
Lattice Qcd ◽  
Correlation Functions ◽  
Landau Gauge ◽  
Coulomb Gauge ◽  
Tree Level ◽  
Wilson Fermions

We show that, when investigating Wilson-fermions correlation functions on the lattice, one is bound to encounter major difficulties in defining their dispersion relation, even at tree level. The problem is indeed quite general and, although we stumbled upon it while studying Coulomb-gauge applications, it also affects gauge fixed studies in covariant gauges, including their most popular version, Landau gauge. In this paper we will discuss a solution to this problems based on a redefinition of the kinematic momentum of the fermion.

scholarly journals Fermion mass and mixing in a low-scale seesaw model based on the S4 flavor symmetry

2019 ◽  
Vol 2019 (11) ◽  
Author(s):  
V V Vien ◽  
H N Long ◽  
A E Cárcamo Hernández
Keyword(s):  
Low Energy ◽  
Spontaneous Breaking ◽  
Fermion Mass ◽  
Recent Experimental Data ◽  
Neutrino Masses ◽  
Flavor Symmetry ◽  
Seesaw Model ◽  
Mixing Parameters ◽  
The Masses ◽  
Good Agreement

Abstract We construct a low-scale seesaw model to generate the masses of active neutrinos based on $S_4$ flavor symmetry supplemented by the $Z_2 \times Z_3 \times Z_4 \times Z_{14}\times U(1)_L$ group, capable of reproducing the low-energy Standard Model (SM) fermion flavor data. The masses of the SM fermions and the fermionic mixing parameters are generated from a Froggatt–Nielsen mechanism after spontaneous breaking of the $S_4\times Z_2 \times Z_3 \times Z_4 \times Z_{14}\times U(1)_L$ group. The obtained values for the physical observables of the quark and lepton sectors are in good agreement with the most recent experimental data. The leptonic Dirac CP-violating phase $\delta _\mathrm{CP}$ is predicted to be $259.579^\circ$ and the predictions for the absolute neutrino masses in the model can also saturate the recent constraints.

scholarly journals Charmed baryon spectroscopy and light flavor symmetry from lattice QCD

2015 ◽  
Vol 92 (3) ◽  
Author(s):  
Paula Pérez-Rubio ◽  
Sara Collins ◽  
Gunnar S. Bali
Keyword(s):  
Lattice Qcd ◽  
Flavor Symmetry ◽  
Charmed Baryon ◽  
Baryon Spectroscopy

scholarly journals Non-perturbative improvement of the axial current in Nf=3 lattice QCD with Wilson fermions and tree-level improved gauge action

2015 ◽  
Vol 896 ◽  
pp. 555-568 ◽  
Author(s):  
John Bulava ◽  
Michele Della Morte ◽  
Jochen Heitger ◽  
Christian Wittemeier
Keyword(s):  
Lattice Qcd ◽  
Axial Current ◽  
Tree Level ◽  
Gauge Action ◽  
Wilson Fermions

scholarly journals Color screening potential at finite density in two-flavor lattice QCD with Wilson fermions

2013 ◽  
Vol 88 (11) ◽  
Author(s):  
Junichi Takahashi ◽  
Keitaro Nagata ◽  
Takuya Saito ◽  
Atsushi Nakamura ◽  
Takahiro Sasaki ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Finite Density ◽  
Wilson Fermions

scholarly journals Algebraic algorithm for the computation of one-loop Feynman diagrams in lattice QCD with Wilson fermions

1996 ◽  
Vol 478 (3) ◽  
pp. 687-719 ◽  
Author(s):  
Giuseppe Burgio ◽  
Sergio Caracciolo ◽  
Andrea Pelissetto
Keyword(s):  
Lattice Qcd ◽  
Feynman Diagrams ◽  
Wilson Fermions
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