Radiative decays of double heavy baryons in a relativistic constituent three-quark model including hyperfine mixing

TL;DR

This paper investigates the radiative decay processes of double heavy baryons using a relativistic three-quark model, analyzing decay rates with finite masses and in the heavy quark limit, and examining hyperfine mixing effects.

Contribution

It introduces a covariant three-quark model to study radiative decays of double heavy baryons, including hyperfine mixing effects and comparisons between finite mass and heavy quark limit scenarios.

Findings

Decay rates calculated in full theory and heavy quark limit.

Hyperfine mixing significantly affects decay rates.

Comparison highlights differences between finite mass and heavy quark approximations.

Abstract

We study flavor-conserving radiative decays of double heavy baryons using a manifestly Lorentz covariant constituent three-quark model. Decay rates are calculated and compared to each other in the full theory, keeping masses finite, and also in the heavy quark limit. We discuss in some detail hyperfine mixing effects.