FCNC decays of spin-1/2 double heavy baryons to spin-3/2 single heavy baryons

Aliev T., AŞKAN E., ÖZPİNECİ A., SARAÇ OYMAK Y.

2024 International Workshop on Quantum Chromodynamics, Trani, İtalya, 18 - 21 Haziran 2024, cilt.314, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 314
  • Doi Numarası: 10.1051/epjconf/202431400004
  • Basıldığı Şehir: Trani
  • Basıldığı Ülke: İtalya
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In recent years, there have been many discoveries in the spectroscopy of hadrons containing heavy quarks. Almost all baryons containing a single heavy quark are discovered in experiments. The quark model predicts the existence of many baryons with double heavy quarks. Among the possible double heavy baryons, only Xi(+)(cc) and Xi(++)(cc) have been experimentally observed in LHCb. Flavor-changing neutral current (FCNC) processes represent a promising platform for precise testing of SM and looking for new physics beyond the SM. In this study, the weak decays of spin-1/2 double heavy baryons to spin3/2 single heavy baryons induced by FCNC are studied within the light cone QCD sum rules method. First, the transition form factors of Xi(0,-)(bb) -> Xi(*0,(l) over bar l)(b), Xi(0,-)(bb) -> Sigma(*0,(l) over bar l)(b), Omega(-)(bb) -> Sigma(b)*(-(l) over barl), Omega(-)(bb) -> Sigma(*0,(l) over bar l)(b) decays are calculated. Then, the corresponding decay widths are estimated using the results for the form factors.