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Strong coupling constants of decuplet baryons with vector mesons
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Date
2010-11-10
Author
Alıyev, Tahmasıb
Savcı, Mustafa
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We provide a comprehensive study of strong coupling constants of decuplet baryons with light nonet vector mesons in the framework of light cone QCD sum rules. Using the symmetry arguments, we argue that all coupling constants entering the calculations can be expressed in terms of only one invariant function even if the SU(3)(f) symmetry breaking effects are taken into account. We estimate the order of SU(3)(f) symmetry violations, which are automatically considered by the employed approach.
Subject Keywords
Nuclear and High Energy Physics
URI
https://hdl.handle.net/11511/34547
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.82.096006
Collections
Department of Physics, Article
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We calculate the strong coupling constants of light pseudoscalar mesons with heavy baryons within the light cone QCD sum rules method. It is shown that sextet-sextet, sextet-antitriplet and antitriplet-antitriplet transitions are described by one universal invariant function for each class. A comparison of our results on the coupling constants with the predictions existing in literature is also presented.
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The strong coupling constants of light pseudoscalar pi, K and eta mesons with decuplet-oclet baryons are studied within light cone QCD sum rules, where SU(3)(f) symmetry breaking effects are taken into account It is shown that all coupling constants under the consideration are described by only one universal function even if SU(3)(f) symmetry breaking effects are considered. (C) 2010 Elsevier B V All rights reserved.
Sigma(Q)Lambda(Q)pi coupling constant in light cone QCD sum rules
Azizi, K.; Bayar, M.; Özpineci, Altuğ (American Physical Society (APS), 2009-03-01)
The strong coupling constants g(Sigma Q)Lambda(Q)pi (Q=b and c) are studied in the framework of the light cone QCD sum rules using the most general form of the baryonic currents. The predicted coupling constants are used to estimate the decay widths for the Sigma(Q)->Lambda(Q)pi decays which are compared with the predictions of the other approaches and existing experimental data.
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T. Alıyev and M. Savcı, “Strong coupling constants of decuplet baryons with vector mesons,”
PHYSICAL REVIEW D
, pp. 0–0, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34547.