scholarly journals Chromomagnetic and chromoelectric dipole moments of the top quark in the fourth-generation THDM

2018 ◽  
Vol 98 (3) ◽  
Author(s):  
A. I. Hernández-Juárez ◽  
G. Tavares-Velasco ◽  
A. Moyotl
Keyword(s):  
Top Quark ◽  
Dipole Moments ◽  
Fourth Generation

scholarly journals Probing the prospective FCC-he sensitivities on the electromagnetic dipole moments of the top-quark

2021 ◽  
Author(s):  
Maria A. Hernandez-ruiz ◽  
Murat Köksal. ◽  
Ahmet A. Billur. ◽  
Alejandro Gutiérrez-Rodríguez.
Keyword(s):  
Top Quark ◽  
Dipole Moments

scholarly journals PROBING THE ANOMALOUS COUPLINGS OF THE TOP QUARK WITH GLUON AT THE LHC AND TEVATRON

2013 ◽  
Vol 28 (37) ◽  
pp. 1350170 ◽  
Author(s):  
HODA HESARI ◽  
MOJTABA MOHAMMADI NAJAFABADI
Keyword(s):  
Production Rate ◽  
Cross Sections ◽  
Top Quark ◽  
Dipole Moments ◽  
Gluon Fusion ◽  
Fusion Process ◽  
Small Range ◽  
Anomalous Couplings ◽  
Text Production ◽  
Measured Ratio

In this paper, we study the sensitivity of the fraction of [Formula: see text] events arising from gluon–gluon fusion to the chromoelectric and chromomagnetic dipole moments (CEDM and CMDM) as well as the total and differential [Formula: see text] cross-sections at the LHC and Tevatron. The sensitivity of measured charged asymmetry at the LHC to CEDM and CMDM is also studied. We find that at the Tevatron and the LHC, nonzero values of CMDM could suppress the [Formula: see text] production rate. It is shown that the ratio of [Formula: see text] at the Tevatron is more sensitive to CEDM and CMDM than the LHC case. The presence of CEDM always increases the contribution of gluon–gluon fusion process in top pair rate at the Tevatron and LHC. Except for a small range of CMDM, the presence of CEDM and CMDM can increase the fraction of gluon–gluon fusion at the Tevatron and LHC. The measured ratio of [Formula: see text] at the Tevatron is used to derive bounds on the chromoelectric and chromomagnetic dipole moments as well as the total and differential [Formula: see text] cross-sections at the LHC and Tevatron, and the measured charged asymmetry at the LHC. The combination of [Formula: see text] and σ LHC provides stringent limits on CMDM and CEDM.

scholarly journals Constraining the dipole moments of the top quark

2012 ◽  
Vol 85 (7) ◽  
Author(s):  
Jernej F. Kamenik ◽  
Michele Papucci ◽  
Andreas Weiler
Keyword(s):  
Top Quark ◽  
Dipole Moments

scholarly journals Electromagnetic dipole moments of the top quark

2013 ◽  
Vol 87 (7) ◽  
Author(s):  
Antonio O. Bouzas ◽  
F. Larios
Keyword(s):  
Top Quark ◽  
Dipole Moments

MINIMAL DYNAMICAL SYMMETRY BREAKING OF THE ELECTROWEAK INTERACTIONS AND mtop

1990 ◽  
Vol 05 (32) ◽  
pp. 2675-2682 ◽  
Author(s):  
CHRISTOPHER T. HILL
Keyword(s):  
Higgs Boson ◽  
Symmetry Breaking ◽  
Top Quark ◽  
Dynamical Symmetry ◽  
Boson Mass ◽  
Fourth Generation ◽  
Higgs Boson Mass ◽  
Electroweak Interactions ◽  
200 Gev ◽  
Recent Idea

We review the recent idea of a mechanism for dynamically breaking the symmetries of the electroweak interactions which relies upon the formation of condensates involving the conventional quarks and leptons, such as the top quark. In particular, such a scheme would indicate that the top quark is heavy, greater than or of order 200 GeV, and gives further predictions for the Higgs boson mass. It may be extended to a fourth generation with new strong TeV scale flavor-interactions.

Sign in / Sign up

Export Citation Format

Share Document