Pregled bibliografske jedinice broj: 197294
Soft gluon contributions to the B --> K eta' amplitude in a low energy bosonization model
Soft gluon contributions to the B --> K eta' amplitude in a low energy bosonization model // Journal of Physics G, 32 (2006), 2081-2087 (međunarodna recenzija, članak, znanstveni)
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Naslov
Soft gluon contributions to the B --> K eta' amplitude in a low energy bosonization model
Autori
Eeg, Jan O. ; Kumerički, Krešimir ; Picek, Ivica
Izvornik
Journal of Physics G (0954-3899) 32
(2006);
2081-2087
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
B mesons; Rare decays; Heavy quarks; Chiral Lagrangians
Sažetak
Intriguing B --> K eta' decays provide a unique opportunity to study a joining of two-gluon configurations arising from the penguin b --> sG and b --> sGG transitions, with those inherent to the eta' particle. We employ the heavy-light chiral quark model as a calculational tool accounting for the nonperturbative soft gluon contributions to the amplitude. Such a novel contribution, accounting for ~ 10 % of the measured amplitude, is in favour of a significant singlet penguin contribution to the B --> K eta' amplitude.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
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
