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arXiv · 1307.3101

Analysis of the semileptonic $\Lambda_b\rightarrow \Lambda \ell^+ \ell^-$ transition in topcolor-assisted technicolor (TC2) model

K. Azizi·S. Kartal·A. T. Olgun·Z. Tavukoglu
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Abstract

We comparatively analyze the flavor changing neutral current process of the $\Lambda_b \rightarrow \Lambda \ell^+ \ell^-$ in the standard model as well as topcolor-assisted technicolor model using the form factors calculated via light cone QCD sum rules in full theory. In particular, we calculate the decay width, branching ratio and lepton forward-backward asymmetry related to this decay channel. We compare the results of the topcolor-assisted technicolor model with those of the standard model and debate how the results of the topcolor-assisted technicolor model depart from the standard model predictions. We also compare our results on the differential branching ratio with recent experimental data provided by CDF and LHCb Collaborations.

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K. Azizi, S. Kartal, A. T. Olgun, Z. Tavukoglu. 2013-07-11. Analysis of the semileptonic $\Lambda_b\rightarrow \Lambda \ell^+ \ell^-$ transition in topcolor-assisted technicolor (TC2) model. https://doi.org/10.1103/physrevd.88.075007

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