HQEFT as a Large Component QCD and Comments on the Incompleteness of HQET-Reference-Cited by-同舟云学术

HQEFT as a Large Component QCD and Comments on the Incompleteness of HQET

Published:2003-06-21 Issue:19 Volume:18 Page:1303-1316
ISSN:0217-7323
Container-title:Modern Physics Letters A
language:en
Short-container-title:Mod. Phys. Lett. A

Author:

Wu Y. L.¹,Yan Y. A.¹,Zhong M.¹,Zuo Y. B.¹,Wang W. Y.²

Affiliation:

1. Institute of Theoretical Physics, Chinese Academy of Sciences, P. O. Box 2735, Beijing 100080, China

2. Department of Physics, Tsinghua University, Beijing 100084, China

Abstract

The heavy quark effective field theory (HQEFT) is revisited in a more intuitive way. It is shown that HQEFT is a consistent large component QCD of heavy quarks. In the nonrelativistic limit, HQEFT recovers the nonrelativistic QCD (NRQCD). The resulting new effects in the HQEFT of QCD are carefully re-examined. It is then natural to give comments on the usual heavy quark effective theory (HQET). Consistent phenomenological applications of HQEFT exhibit its interesting features and completeness in comparison with HQET. It then becomes manifest why we shall base on the HQEFT of QCD rather than HQET which is incomplete for computing 1/mQcorrections. More precise extraction for ∣Vcb∣ and ∣Vub∣ in the HQEFT of QCD is emphasized.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217732303011149

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