6533b85afe1ef96bd12b8ca9
RESEARCH PRODUCT
Electroweak effective theory and beyond Standard Model resonances
Juan José Sanz-cilleroAntonio PichIgnasi Rosellsubject
PhysicsNuclear and High Energy PhysicsParticle physicsCurrent (mathematics)010308 nuclear & particles physicsElectroweak interactionResonanceFOS: Physical sciences01 natural sciencesStandard ModelHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesEffective field theory010306 general physicsRealization (systems)description
We consider a non-linear realization of the electroweak symmetry-breaking pattern $SU(2)_L\times SU(2)_R/SU(2)_{L+R}$ to construct a low-energy effective theory, later extended by the inclusion of heavy new-physics resonances. After assuming appropriate high-energy constraints given by Weinberg sum-rules and the asymptotic behaviour of form-factors, we obtain relations between resonance masses and some low-energy effective couplings. These predictions are compared with current experimental data and some resonance mass bounds are inferred.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-07-01 |