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Semileptonic B -> a(1)l nu decay in QCD
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Date
1999-06-10
Author
Alıyev, Tahmasıb
Savcı, Mustafa
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The form factors and the branching ratio of the B --> a(1)lv decay are calculated in framework of QCD sum rules. A comparison of our results on form factors and branching ratio with the results from constituent quark model is presented. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
Subject Keywords
Intermediate momentum-transfer
,
Form-factors
,
Sum-rules
,
Meson
,
B->Pi
URI
https://hdl.handle.net/11511/47649
Journal
PHYSICS LETTERS B
DOI
https://doi.org/10.1016/s0370-2693(99)00466-9
Collections
Department of Physics, Article
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Semileptonic B-s -> D-sJ(2460)l nu decay in QCD
Alıyev, Tahmasıb; Özpineci, Altuğ (Springer Science and Business Media LLC, 2007-08-01)
Using three point QCD sum rule methods, the form factors relevant to semileptonic B-s -> D-sJ(2460)l nu decay are calculated. The q(2) dependences of these form factors are evaluated and compared with the heavy quark effective theory predictions. The dependence of the asymmetry parameter alpha, characterizing the polarization of the D-sJ meson, on q(2) stop is studied. The branching ratio of this decay is also estimated, and it is shown that it can easily be detected at LHC.
Semileptonic B-c(-) -> D(*0)l nu transition in three-point QCD sum rules and heavy quark effective theory with gluon condensate corrections
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Taking into account the gluon condensate contributions, the form factors of the semileptonic B-c(-) -> D(*0)l nu transition with l = tau, e are calculated in the framework of the three-point QCD sum rules. The heavy quark effective theory limit of the form factors is also computed. The relevant total decay width as well as the branching ratio are evaluated and compared with the predictions of the other nonperturbative approaches.
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T. Alıyev and M. Savcı, “Semileptonic B -> a(1)l nu decay in QCD,”
PHYSICS LETTERS B
, pp. 256–263, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47649.