Pregled bibliografske jedinice broj: 1366
Exclusive photoproduction of large momentum- transfer K and K* mesons
Exclusive photoproduction of large momentum- transfer K and K* mesons // Physical review. D, Particles and fields, 55 (1997), 7; 4315-4328 doi:10.1103/PhysRevD.55.4315 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1366 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Exclusive photoproduction of large momentum- transfer K
and K* mesons
Autori
Kroll, Peter ; Schürmann, M. ; Passek, Kornelija ; Schweiger, Wolfgang
Izvornik
Physical review. D, Particles and fields (0556-2821) 55
(1997), 7;
4315-4328
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
exclusive reactions ; QCD ; diquarks ; photoproduction ; K and K*mesons
Sažetak
The reactions gamma p->K+Lambda and gamma p- >K*+Lambda are analyzed within perturbative QCD, allowing for diquarks as quasielementary constituents of baryons. The diquark-model parameters and the quark-diquark distribution amplitudes of the proton and Lambda are taken from previous investigations of electromagnetic baryon form factors and Compton scattering off protons. Unpolarized differential cross sections and polarization observables are computed for different choices of the K and K* distribution amplitudes. The asymptotic form of the K distribution amplitude ( proportional x1x2) is found to provide a satisfactory description of the K photoproduction data.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
00980102
Ustanove:
Institut "Ruđer Bošković", Zagreb
Profili:
Kornelija Passek-Kumerički
(autor)
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
