Journal Article

Mixing Angle between 3P1 and 1P1 in HQET

Takayuki Matsuki, Toshiyuki Morii and Koichi Seo

in Progress of Theoretical Physics

Published on behalf of The Physical Society of Japan

Volume 124, issue 2, pages 285-292
Published in print August 2010 | ISSN: 0033-068X
Published online August 2010 | e-ISSN: 1347-4081 | DOI: https://dx.doi.org/10.1143/PTP.124.285
Mixing Angle between 3P1 and 1P1 in HQET

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Some claim that there are two independent mixing angles (θ = 35.3°, −54.7°) between 3P1 and 1P1 states of heavy-light mesons in the heavy quark symmetric limit, and others claim there is only one (θ = 35.3°). We clarify the difference between these two and suggest which should be adopted. General arguments on the mixing angle between 3LL and 1LL of heavy-light mesons are given in HQET and a general relation is derived in the heavy quark symmetric limit as well as that including the first-order correction in 1/mQ.

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Subjects: Nuclear Physics ; Particles and Fields

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