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

Tanja Branz, Amand Faessler, Thomas Gutsche, Mikhail A. Ivanov, Jürgen G. Körner, Valery E. Lyubovitskij, and Bettina Oexl
Phys. Rev. D 81, 114036 – Published 25 June 2010

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.

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  • Received 12 May 2010

DOI:https://doi.org/10.1103/PhysRevD.81.114036

©2010 American Physical Society

Authors & Affiliations

Tanja Branz1, Amand Faessler1, Thomas Gutsche1, Mikhail A. Ivanov2, Jürgen G. Körner3, Valery E. Lyubovitskij1,*, and Bettina Oexl1

  • 1Institut für Theoretische Physik, Universität Tübingen, Kepler Center for Astro and Particle Physics, Auf der Morgenstelle 14, D-72076 Tübingen, Germany
  • 2Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
  • 3Institut für Physik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany

  • *On leave from Department of Physics, Tomsk State University, 634050 Tomsk, Russia.

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Issue

Vol. 81, Iss. 11 — 1 June 2010

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