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Light cone QCD sum rules study of the rare radiative Ξbb*→Ξbγ decay

T. M. Aliev1,*, A. Ozpineci1,†, and Y. Sarac2,‡

  • *Contact author: taliev@metu.edu.tr
  • †Contact author: ozpineci@metu.edu.tr
  • ‡Contact author: yasemin.sarac@atilim.edu.tr
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Phys. Rev. D 113, 096005 – Published 8 May, 2026

DOI: https://doi.org/10.1103/r6t9-m2gw

Abstract

The rare radiative decay Ξbb*→Ξbγ is investigated within the light cone QCD sum rules approach. This decay proceeds through the flavor changing neutral current b→s transition in the Standard Model. The hadronic matrix element of the considered decay is parameterized in terms of four tensor form factors T1V(q2), T2V(q2), T1A(q2), and T2A(q2). The sum rules for these form factors describing the Ξbb*→Ξbγ decay are derived at q2=0 point using the Ξb distribution amplitudes. The results of the form factors are employed to calculate the corresponding decay width. Our finding indicates that this weak radiative decay could be within reach of future high statistics studies of doubly heavy baryons at LHCb and upcoming facilities.

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Phys. Rev. D 113, 096005– Published 8 May, 2026
  • Received 20 January 2026
  • Accepted 20 April 2026
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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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