Pregled bibliografske jedinice broj: 16792
Inclusive charmed-baryon decays and lifetimes
Inclusive charmed-baryon decays and lifetimes // European physical journal C : particles and fields, 2 (1998), 4; 697-703 doi:10.1007/s100529800719 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 16792 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Inclusive charmed-baryon decays and lifetimes
Autori
Guberina, Branko ; Melić, Blaženka
Izvornik
European physical journal C : particles and fields (1434-6044) 2
(1998), 4;
697-703
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
inclusive charmed-baryon decays; charmed-baryon lifetimes; preasymptotic effects
Sažetak
We have quantitatively reanalyzed the inclusive charmed-baryon decays. New ingredients are the Voloshin preasymptotic effects in semileptonic decays and the Cabibbo-subleading contributions to both semileptonic and nonleptonic decays. It has been found that the Cabbibo-subleading Voloshin contribution essentially improves the theoretical semileptonic branching ratio of Lambda /sub c//sup +/, in agreement with experiment. The semileptonic branching ratios for Xi /sub c//sup +/ and Omega /sub c//sup 0/ are found to be large, i.e., of the order of 20%. The lifetimes hierarchy is in a good qualitative and even quantitative agreement with experiment except for the Xi /sub c//sup +/ lifetime, which is somewhat smaller than the experimental value. Future measurements, especially measurements of the semileptonic branching ratios for Omega /sub c//sup 0/, Xi /sub c//sup +/ and Xi /sub c//sup 0/ should be decisive for the check of this approach.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
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
