6533b824fe1ef96bd128099e
RESEARCH PRODUCT
Improved bounds on heavy quark electric dipole moments
Hector GisbertJoan Ruiz Vidalsubject
PhysicsQuarkParticle physics010308 nuclear & particles physicsPhysics beyond the Standard ModelHigh Energy Physics::PhenomenologyFOS: Physical sciences01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)Electric dipole momentDipoleHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesEffective lagrangianOrders of magnitude (speed)High Energy Physics::ExperimentCharm (quantum number)010306 general physicsdescription
New bounds on the electric dipole moment (EDM) of charm and bottom quarks are derived using the stringent limits on their chromo-EDMs. The new limits, $|d_c|<1.5\times10^{-21}\:e\,\text{cm}$ and $|d_b|< 1.2\times 10^{-20}\:e\,\text{cm}$, improve the previous ones by about three orders of magnitude. These indirect bounds have implications for different models of new physics, including two-Higgs-doublet, leptoquarks, and supersymmetry models.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-06-09 |