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Semileptonic decays of doubly charmed or bottom baryons to single heavy baryons

¹Department of Physics, University of Tehran, North Karegar Avenue, Tehran 14395-547, Iran
²Department of Physics, Dogus University, Dudullu-Ümraniye, 34775 Istanbul, Türkiye

^*Contact author: kazem.azizi@ut.ac.ir

Phys. Rev. D 112, 074012 – Published 14 October, 2025

DOI: https://doi.org/10.1103/fhqx-8mz2

Abstract

We investigate the semileptonic decays of baryons containing double charm or double bottom quarks, focusing on their transitions to single heavy baryons through three-point QCD sum rule framework. In our calculations, we take into account nonperturbative operators with mass dimensions up to five. We calculate the form factors associated with these decays, emphasizing the vector and axial-vector transition currents in the corresponding amplitude. By applying fitting functions for the form factors based on the squared momentum transfer, we derive predictions for decay widths and branching ratios in their possible lepton channels. These findings offer valuable insights for experimentalists exploring semileptonic decays of doubly charmed or bottom baryons. Perhaps they can be validated in upcoming experiments like LHCb. These investigations contribute to a deeper understanding of the decay mechanisms in these baryonic channels.

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Phys. Rev. D 112, 074012– Published 14 October, 2025

Vol. 112, Iss. 7 — 1 October 2025

Received 23 April 2025
Revised 7 September 2025
Accepted 30 September 2025

DOI: https://doi.org/10.1103/fhqx-8mz2

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

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Semileptonic decays of doubly charmed or bottom baryons to single heavy baryons

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