scholarly journals Lightest scalars as chiral partners of the Nambu–Goldstone bosons

2007 ◽  
Vol 174 ◽  
pp. 142-145 ◽  
Author(s):  
L.Y. Xiao ◽  
H.Q. Zheng ◽  
Z.Y. Zhou
Keyword(s):  
Goldstone Bosons

scholarly journals Electroweak SU(2)L × U(1)Y model with strong spontaneously fermion-mass-generating gauge dynamics

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Petr Beneš ◽  
Jiří Hošek ◽  
Adam Smetana
Keyword(s):  
Chiral Symmetry Breaking ◽  
Axial Vector ◽  
Higgs Sector ◽  
Dyson Equation ◽  
Mass Splitting ◽  
Fermion Mass ◽  
Goldstone Bosons ◽  
The Standard Model ◽  
Exploratory Stage ◽  
The Masses

Abstract Higgs sector of the Standard model (SM) is replaced by quantum flavor dynamics (QFD), the gauged flavor SU(3)f symmetry with scale Λ. Anomaly freedom requires addition of three νR. The approximate QFD Schwinger-Dyson equation for the Euclidean infrared fermion self-energies Σf(p2) has the spontaneous-chiral-symmetry-breaking solutions ideal for seesaw: (1) Σf(p2) = $$ {M}_{fR}^2/p $$ M fR 2 / p where three Majorana masses MfR of νfR are of order Λ. (2) Σf(p2) = $$ {m}_f^2/p $$ m f 2 / p where three Dirac masses mf = m(0)1 + m(3)λ3 + m(8)λ8 of SM fermions are exponentially suppressed w.r.t. Λ, and degenerate for all SM fermions in f. (1) MfR break SU(3)f symmetry completely; m(3), m(8) superimpose the tiny breaking to U(1) × U(1). All flavor gluons thus acquire self-consistently the masses ∼ Λ. (2) All mf break the electroweak SU(2)L × U(1)Y to U(1)em. Symmetry partners of the composite Nambu-Goldstone bosons are the genuine Higgs particles: (1) three νR-composed Higgses χi with masses ∼ Λ. (2) Two new SM-fermion-composed Higgses h3, h8 with masses ∼ m(3), m(8), respectively. (3) The SM-like SM-fermion-composed Higgs h with mass ∼ m(0), the effective Fermi scale. Σf(p2)-dependent vertices in the electroweak Ward-Takahashi identities imply: the axial-vector ones give rise to the W and Z masses at Fermi scale. The polar-vector ones give rise to the fermion mass splitting in f. At the present exploratory stage the splitting comes out unrealistic.

scholarly journals The dynamics of the Goldstone bosons on the brane

2001 ◽  
Vol 592 (1-2) ◽  
pp. 203-218 ◽  
Author(s):  
Antonio Dobado ◽  
Antonio L. Maroto
Keyword(s):  
Goldstone Bosons

scholarly journals Quark mass dependence of masses and decay constants of the pseudo-Goldstone bosons in QCD

2003 ◽  
Vol 31 (2) ◽  
pp. 227-238 ◽  
Author(s):  
F. Farchioni ◽  
◽  
I. Montvay ◽  
E. Scholz ◽  
L. Scorzato
Keyword(s):  
Quark Mass ◽  
Mass Dependence ◽  
Decay Constants ◽  
Goldstone Bosons ◽  
Quark Mass Dependence

scholarly journals Gauge theory approach to branes and spontaneous symmetry breaking

2017 ◽  
Vol 29 (03) ◽  
pp. 1750009 ◽  
Author(s):  
A. A. Zheltukhin
Keyword(s):  
Gauge Theory ◽  
Symmetry Breaking ◽  
Spontaneous Symmetry Breaking ◽  
Vector Fields ◽  
Theory Approach ◽  
Tensor Fields ◽  
Broken Symmetries ◽  
Goldstone Bosons ◽  
Dimensional Minkowski Space ◽  
Poincaré Symmetry

We discuss the gauge theory approach to consideration of the Nambu–Goldstone bosons as gauge and vector fields represented by the Cartan forms of spontaneously broken symmetries. The approach is generalized to describe the fundamental branes in terms of [Formula: see text]-dimensional worldvolume gauge and massless tensor fields consisting of the Nambu–Goldstone bosons associated with the spontaneously broken Poincaré symmetry of the [Formula: see text]-dimensional Minkowski space.

scholarly journals On the Interpretation of Nonresonant Phenomena at Colliders

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Miguel G. Folgado ◽  
Veronica Sanz
Keyword(s):  
New Physics ◽  
Derivative Expansion ◽  
Strongly Coupled ◽  
Null Results ◽  
Goldstone Bosons ◽  
Physics Potential ◽  
Low Energies ◽  
Light Particles ◽  
Integrated Luminosity

With null results in resonance searches at the LHC, the physics potential focus is now shifting towards the interpretation of nonresonant phenomena. An example of such shift is the increased popularity of the EFT programme. We can embark on such programme owing to the good integrated luminosity and an excellent understanding of the detectors, which will allow these searches to become more intense as the LHC continues. In this paper, we provide a framework to perform this interpretation in terms of a diverse set of scenarios, including (1) generic heavy new physics described at low energies in terms of a derivative expansion, such as in the EFT approach; (2) very light particles with derivative couplings, such as axions or other light pseudo-Goldstone bosons; and (3) the effect of a quasicontinuum of resonances, which can come from a number of strongly coupled theories, extradimensional models, clockwork set-ups, and their deconstructed cousins. These scenarios are not equivalent despite all nonresonance, although the matching among some of them is possible, and we provide it in this paper.

Unstable Goldstone bosons and the elimination of scalar particles from gauge theories

1974 ◽  
Vol 10 (4) ◽  
pp. 1225-1236 ◽  
Author(s):  
C. L. Hammer ◽  
B. DeFacio
Keyword(s):  
Gauge Theories ◽  
Scalar Particles ◽  
Goldstone Bosons

Working group on electromagnetic production of goldstone bosons

1998 ◽  
pp. 189-212 ◽  
Author(s):  
A. M. Bernstein ◽  
N. Kaiser ◽  
M. Benmerrouche ◽  
J. Bergstrom ◽  
S. Goers ◽  
...  
Keyword(s):  
Working Group ◽  
Goldstone Bosons
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