Anomalous chromomagnetic moment of quarks

Abstract

We do a perturbative calculation of the anomalous chromomagnetic dipole moment of quarks at one-loop, also considering the effect of a small gauge-invariant mass of the gluon. We find partial agreement with a previous calculation, as well as a divergence. We explain these results by noting that perturbation theory is not valid at the energy scales where these calculations were done, and proceed to give the results at the $M_Z$ scale. We find significant variation, of the anomalous moment of the light quarks, as a function of gluon mass.

arXiv comment17 pages, 12 figures; V2: References added, typos corrected in some equations, differences with existing work discussed in detail, results unchanged

References in corpus (26)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Patterns of Deviation from the Standard Model
• Dressed-quark anomalous magnetic moments
• Constraining the dipole moments of the top quark
• Quark-gluon vertex in arbitrary gauge and dimension
• Probing top-Higgs non-standard interactions at the LHC
• Gluon mass generation without seagull divergences
• Nonabelian Topological Mass Generation in 4 Dimensions
• A Phenomenological Analysis of Gluon Mass Effects in Inclusive Radiative Decays of the $J/\psi$ and $Υ
• On the renormalizability and unitarity of the Curci-Ferrari model for massive vector bosons
• The Dynamical Nonabelian Two-Form: BRST Quantization
• Search for anomalous top-gluon couplings at LHC revisited
• Chromomagnetic Dipole Moment of the Top Quark Revisited
• Latest constraint on non-standard top-gluon couplings at hadron colliders and its future prospect
• The anomalous chromomagnetic dipole moment of the top quark in the standard model and beyond
• Probing chromomagnetic and chromoelectric couplings of the top quark using its polarization in pair production at hadron colliders
• Renormalizability of the Dynamical Two-Form
• Using the decay $b\to s\gamma$ to bound the chromomagnetic dipole moment of the top quark
• Addendum to: Search for anomalous top-gluon couplings at LHC revisited
• Higgs production as a probe of anomalous top couplings
• Probing the top quark chromoelectric and chromomagnetic dipole moments in single top $tW$-channel at the LHC
• Upper Limits on a Possible Gluon Mass
• Direct photon production as a probe of quarks chromoelectric and chromomagnetic dipole moments at the LHC
• Unitarity in $WW\to WW$ elastic scattering in topologically massive SU(2) gauge theory
• Higgs two-gluon decay and the top-quark chromomagnetic moment

Cited by in corpus (12)

• A set of top quark spin correlation and polarization observables for the LHC: Standard Model predictions and new physics contributions
• Quark-gluon Vertex: A Perturbation Theory Primer and Beyond
• New estimate of the chromomagnetic dipole moment of quarks in the standard model
• Revisiting the top quark chromomagnetic dipole moment in the SM
• Flavor violation in chromo- and electromagnetic dipole moments induced by $Z^{\prime }$ gauge bosons and a brief revisit of the Standard Model
• Chromomagnetic and chromoelectric dipole moments of the top quark in the 4GTHDM
• Chromomagnetic and chromoelectric dipole moments of quarks in the reduced 331 model
• The top quark chromomagnetic dipole moment in the SM from the 4-body vertex function
• Off-shell chromomagnetic dipole moments in the SM at and beyond the $Z$ gauge boson mass scale
• Chromomagnetic dipole moment of the top quark in the Bestest Little Higgs model
• Probing top quark anomalous moments in $W$ boson associated single top quark production at the LHC using polarization and spin correlation
• Quark ACM with topologically generated gluon mass