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Inclusive decays and lifetimes of doubly charmed baryons


Guberina, Branko; Melić, Blaženka; Štefančić, Hrvoje
Inclusive decays and lifetimes of doubly charmed baryons // European physical journal C, 9 (1999), 2; 213-219 (međunarodna recenzija, članak, znanstveni)


Naslov
Inclusive decays and lifetimes of doubly charmed baryons

Autori
Guberina, Branko ; Melić, Blaženka ; Štefančić, Hrvoje

Izvornik
European physical journal C (1434-6044) 9 (1999), 2; 213-219

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Heavy baryons; doubly charmed baryons; lifetimes; preasymptotic effects; OPE

Sažetak
The analysis of singly charmed hadrons has been extended to the case of doubly charmed baryons, $Xi_{cc}^{++}$, $Xi_{cc}^{+}$ and $Omega_{cc}^{+}$. Doubly charmed baryons are described as a system containing a heavy $cc$-diquark and a light quark, similarly as in a heavy-light meson. This leads to preasymptotic effects in semileptonic and nonleptonic decays which are essentially proportional to the meson wave function. Interplay between preasymptotic effects in semileptonic and/or nonleptonic decay rates leads to very clear predictions for semileptonic branching ratios and lifetimes of doubly charmed baryons.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
00980102

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus