Light cone QCD sum rules study of the rare radiative Ξ<i><sub>bb</sub></i>* → Ξ<i><sub>b</sub></i>γ decay

ALIYEV T., ÖZPİNECİ A., Sarac Y.

PHYSICAL REVIEW D, cilt.113, sa.9, 2026 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 113 Sayı: 9
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1103/r6t9-m2gw
  • Dergi Adı: PHYSICAL REVIEW D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC, MathSciNet, zbMATH, Nature Index
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The rare radiative decay Xi(bb)*-Xi(b)gamma 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 T-1(V) (q(2)), T-2(V) (q(2)), T-1(A)(q(2)), and T-2(A)(q(2)). The sum rules for these form factors describing the Xi(bb)* -> Xi(b)gamma decay are derived at q(2) = 0 point using the b 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.