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Titolo:
QCD factorization for B -> PP - art. no. 014036
Autore:
Du, DS; Yang, DS; Zhu, GH;
Indirizzi:
Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China Chinese Acad Sci Beijing Peoples R China 100039 100039, Peoples R China CCAST, World Lab, Beijing 100080, Peoples R China CCAST Beijing Peoples R China 100080 ab, Beijing 100080, Peoples R China
Titolo Testata:
PHYSICAL REVIEW D
fascicolo: 1, volume: 6401, anno: 2001,
pagine: 4036 -
SICI:
0556-2821(20010701)6401:1<4036:QFFB-P>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-QUARK LIMIT; 2-BODY B-DECAYS; PERTURBATIVE QCD; LEADING LOGARITHMS; MESON DECAYS; FORM-FACTORS; WEAK DECAYS; LATTICE; MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Du, DS Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100039,Peoples R China Chinese Acad Sci POB 918 4 Beijing Peoples R China 100039 R China
Citazione:
D.S. Du et al., "QCD factorization for B -> PP - art. no. 014036", PHYS REV D, 6401(1), 2001, pp. 4036

Abstract

In this work, we give a detailed discussion for QCD factorization involvedin the complete chirally enhanced power corrections in the heavy quark limit for B decays to two light pseudoscalar mesons. and present some detailedcalculations of radiative corrections at the order of alpha (s). We point out that the infrared finiteness of the vertex corrections in the chirally enhanced power corrections requires twist-3 light-cone distribution amplitudes (LCDAs) of the light pseudoscalar symmetric. However, even in the symmetric condition. there is also a logarithmic divergence from the end points of the twist-3 LCDAs in the hard spectator scattering. We point out that the decay amplitudes of B --> PP predicted by QCD factorization are really free of the renormalization scale dependence, at least at the order of alpha (s). At last, we briefly compare the QCD factorization with the generalizedfactorization and PQCD method.

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Documento generato il 31/03/20 alle ore 18:47:26