Semileptonic decays of double heavy baryons in a relativistic constituent three-quark model

Amand Faessler, Thomas Gutsche, Mikhail A. Ivanov, Jürgen G. Körner, and Valery E. Lyubovitskij
Phys. Rev. D 80, 034025 – Published 21 August 2009

Abstract

We study the semileptonic decays of double-heavy baryons using a manifestly Lorentz covariant constituent three-quark model. We present complete results on transition form factors between double-heavy baryons for finite values of the heavy quark/baryon masses and in the heavy quark symmetry limit, which is valid at and close to zero recoil. Decay rates are calculated and compared to each other in the full theory, keeping masses finite, and also in the heavy quark limit.

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  • Received 3 July 2009

DOI:https://doi.org/10.1103/PhysRevD.80.034025

©2009 American Physical Society

Authors & Affiliations

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

  • 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 of absence from Department of Physics, Tomsk State University, 634050 Tomsk, Russia

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Vol. 80, Iss. 3 — 1 August 2009

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