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Sigma(b,c) to Nucleon Transitions in Light Cone QCD Sum Rules
Date
2010-09-03
Author
BAYAR, MELAHAT
AZİZİ, KAZEM
Zeyrek, Mehmet Tevfik
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The loop level flavor changing neutral current transitions of the Sigma(b) -> nl(+)l(-) and Sigma(c) -> pl(+)l(-) are investigated in the light cone QCD sum rules approach. Using the most general form of the interpolating current for Sigma(Q), Q - b or c, the transition form factors are calculated using two sets of input parameters entering the nucleon distribution amplitudes, namely, QCD sum rules and lattice QCD inputs. The obtained results are used to estimate the decay rates of the corresponding transitions. Since such type transitions occurred at loop level in the standard model, they can be considered as good candidates to search for the new physics effects beyond the SM.
Subject Keywords
Sum rules
,
Decays of Baryons
,
Bottom Baryons
URI
https://hdl.handle.net/11511/41642
DOI
https://doi.org/10.1063/1.3575036
Collections
Department of Physics, Conference / Seminar