Decay rate and asymmetries of Σ+ → pμ+μ

• Published in: The journal of high energy physics Vol. 2018; no. 10; pp. 1 - 20
• Main Authors: He, Xiao-Gang, Tandean, Jusak, Valencia, German
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2018; Springer Nature B.V; SpringerOpen
• Subjects: Asymmetry; Beyond Standard Model; Chiral Lagrangians; Classical and Quantum Gravitation; Decay rate; Effective Field Theories; Elementary Particles; High energy physics; Nonperturbative Effects; Parameterization; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Theoretical Physics; Relativity Theory; Standard model (particle physics); String Theory; Uncertainty; Chiral Lagrangians; Effective Field Theories; Beyond Standard Model; Nonperturbative Effects

A bstract The LHCb Collaboration has recently reported evidence for the rare hyperon decay Σ + → pμ + μ − that is consistent with the standard model expectation. Motivated by this new result we revisit the calculation of this mode including both long and short distance contributions. In the standard...