Weak Xi (QQ) -> Sigma(Q)l(+)l(-) decays induced by FCNC in QCD


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ALIYEV T., Savci M., BİLMİŞ S.

EUROPEAN PHYSICAL JOURNAL C, vol.82, no.10, 2022 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 82 Issue: 10
  • Publication Date: 2022
  • Doi Number: 10.1140/epjc/s10052-022-10845-5
  • Journal Name: EUROPEAN PHYSICAL JOURNAL C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals
  • Middle East Technical University Affiliated: Yes

Abstract

With the discovery of the doubly heavy Xi(cc) baryon, comprehensive studies of the properties of the doubly heavy baryons are started. In the present work, we examine the Xi(bb) -> Sigma(b)l(+)l(-) and Xi(cc) -> Sigma(c)l(+)l(-) decays induced by flavor-changing neutral currents (FCNC) in the framework of the light-cone sum rules. After obtaining the sum rules for the form factors induced by the tensor current, the branching ratios of the relevant transitions are estimated. We found that the branching ratio for the c -> u transition is around five orders smaller than the b -> d transition. Our findings are also compared with other approaches.