arXiv:2111.13000·v2·High Energy Physics — Phenomenology
Electric dipole moments of baryons with bottom quarks
Y. Ünal🇩🇪 · D. Severt🇩🇪 · J. de Vries🇳🇱 · C. Hanhart🇩🇪 · Ulf-G. Meißner🇩🇪
Abstract
Triggered by experimental prospects to measure electromagnetic dipole moments of baryons containing a bottom quark, we calculate the CP-odd electric dipole moments (EDMs) of spin-1/2 single-bottom baryons. We consider CP-violating dimension-six operators in the Standard Model Effective Field Theory that involve bottom quarks, and apply heavy-baryon chiral perturbation theory to compute the EDMs of several baryons. We discuss the expected size of the EDMs for beyond-the-Standard Model physics appearing at the TeV scale.
Comments: 20 pages, 1 figure, published version