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DAI, YB; GUO, XH; HUANG, CS; DAI, YB , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY
Source PublicationNUCLEAR PHYSICS B
KeywordNot-equal-infinity Lambda-b Decays Mesons
AbstractThe suppressed LAMBDA(b) --> SIGMA(c) decay form factors are analyzed using the heavy quark effective theory (HQET) to second order power corrections. We find that to order 1/m(c) and 1/m(b), four form factors are needed to describe these decays while to order 1/m(c)2, 1/m(b)2 and 1/m(c)m(b), 26 more form factors are introduced. Our result for the 1/mc contribution is at variance with the previous result. It is shown that at the zero-recoil point 1/m(c)2 and 1/m(c)m(b) terms are the leading ones contributing to LAMBDA(b) --> SIGMA(c) and LAMBDA(b) --> SIGMA(c) respectively. We also give a rough estimate for the decay width LAMBDA(b) --> SIGMA(c)lnu.
1994
ISSN0550-3213
Volume412Issue:40910Pages:277-301
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/11959
Collection理论物理所科研产出_SCI论文
Corresponding AuthorDAI, YB , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
Recommended Citation
GB/T 7714
DAI, YB,GUO, XH,HUANG, CS,et al. THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY[J]. NUCLEAR PHYSICS B,1994,412(40910):277-301.
APA DAI, YB,GUO, XH,HUANG, CS,&DAI, YB , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1994).THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY.NUCLEAR PHYSICS B,412(40910),277-301.
MLA DAI, YB,et al."THE LAMBDA(B)-]SIGMA(C)(ASTERISK) FORM-FACTORS TO 2ND-ORDER POWER CORRECTIONS IN THE HEAVY-QUARK EFFECTIVE THEORY".NUCLEAR PHYSICS B 412.40910(1994):277-301.
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