Lambda(b) -> Lambda l(+)l(-) decay in universal extra dimensions

Date

2007-03-01

Author

Alıyev, Tahmasıb
Savcı, Mustafa

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We study the exclusive Lambda(b) ->Lambda l(+)l(-)(l = mu,Gamma) decay in the Appelquist, Chang, Dobrescu model with a single universal extra dimension. We investigate the sensitivity of the branching ratio, lepton polarization and forward-backward asymmetry A(FB) to the compactification parameter 1/R. We obtain the result that the branching ratio for the Lambda(b) -> Lambda l(+)l(-) (l = mu, T) decay changes about 25% compared to the SM value when 1/R = 250 GeV, and the zero position of the forward-backward asymmetry is shifted to the left compared to the SM result. Therefore, measurement of the branching ratio of Lambda(b) -> Lambda l(+)l(-) (l = mu,T) decay and determination of the zero position of AFB are very useful in looking for new physics in the framework of the UED models.

Subject Keywords

Physics and Astronomy (miscellaneous), Engineering (miscellaneous)

URI

https://hdl.handle.net/11511/41021

Journal

EUROPEAN PHYSICAL JOURNAL C

DOI

https://doi.org/10.1140/epjc/s10052-006-0203-5

Collections

Department of Physics, Article

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Citation Formats

T. Alıyev and M. Savcı, “Lambda(b) -> Lambda l(+)l(-) decay in universal extra dimensions,” EUROPEAN PHYSICAL JOURNAL C, pp. 91–99, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41021.