Flavor-changing neutral currents transition of the Sigma(Q) to nucleon in full QCD and heavy quark effective theory

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2010-08-01

Author

AZİZİ, KAZEM
BAYAR, MELAHAT
Zeyrek, Mehmet Tevfik

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The loop-level flavor-changing neutral currents transitions of the Sigma(b) -> nl(+)l(-) and Sigma(c) -> pl(+)l(-) are investigated in full QCD and heavy quark effective theory in the light cone QCD sum rules approach. Using the most general form of the interpolating current for Sigma(Q), Q = b or c, as members of the recently discovered sextet heavy baryons with spin 1/2 and containing one heavy quark, the transition form factors are calculated using two sets of input parameters entering the nucleon distribution amplitudes. The obtained results are used to estimate the decay rates of the corresponding transitions. Since such a type of transitions occurs at the loop level in the standard model (SM), they can be considered as good candidates to search for the new physics effects beyond the SM.

Subject Keywords

Nuclear and High Energy Physics

URI

https://hdl.handle.net/11511/41281

Journal

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS

DOI

https://doi.org/10.1088/0954-3899/37/8/085002

Collections

Department of Physics, Article

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Citation Formats

K. AZİZİ, M. BAYAR, and M. T. Zeyrek, “Flavor-changing neutral currents transition of the Sigma(Q) to nucleon in full QCD and heavy quark effective theory,” JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, pp. 0–0, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41281.