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Titolo:
Heavy quark distribution functions in heavy baryons - art. no. 096004
Autore:
Guo, XH; Thomas, AW; Williams, AG;
Indirizzi:
Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia Univ Adelaide Adelaide SA Australia 5005 ys, Adelaide, SA 5005, Australia Univ Adelaide, Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia Univ Adelaide Adelaide SA Australia 5005 er, Adelaide, SA 5005, Australia
Titolo Testata:
PHYSICAL REVIEW D
fascicolo: 9, volume: 6409, anno: 2001,
pagine: 6004 -
SICI:
0556-2821(20011101)6409:9<6004:HQDFIH>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
PARTON DISTRIBUTION-FUNCTIONS; BETHE-SALPETER-EQUATION; ISGUR-WISE FUNCTION; DIQUARK PICTURE; FORM-FACTORS; MESONS; DECAYS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Guo, XH Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, AustraliaUniv Adelaide Adelaide SA Australia 5005 aide, SA 5005, Australia
Citazione:
X.H. Guo et al., "Heavy quark distribution functions in heavy baryons - art. no. 096004", PHYS REV D, 6409(9), 2001, pp. 6004

Abstract

Using the Bethe-Salpeter (BS) equations for heavy baryons Lambda (Q), Sigma (Q), Xi (Q) and Omega (Q) (Q = b or c), which were established in previous work, we calculate the heavy quark distribution functions in these baryons. The numerical results indicate that these distribution functions have anobvious peak at some fraction alpha (0) of the baryon's light-cone "plus" momentum component carried by the heavy quark, and that as m(Q) becomes heavier this peak becomes sharper and closer to 1. The dependence of the distribution functions on various input parameters in the BS model is also discussed. The results are seen to be qualitatively similar to an existing phenomenological model.

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Documento generato il 31/03/20 alle ore 19:31:00