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The effects of fourth generation on the total branching ratio and the lepton polarization in Lambda(b)->Lambda l(+) l(-) decay
Date
2007-07-01
Author
Bashiry, Vali
Azizi, Kazem
Metadata
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This study investigates the influence of the fourth generation quarks on the total branching ratio and the single lepton polarizations in Lambda(b) -> Lambda l(+)l(-) decay. Taking vertical bar Vt ' sVt ' b vertical bar similar to {0.01-0.03} with phase just below 90 degrees, which is consistent with the b -> sl(+)l(-) rate and the B-s mixing parameter Delta(mBs), we obtain that the total branching ratio and the single lepton (mu,tau) polarizations are quite sensitive to the existence of fourth generation. It can serve as a good tool to search for new physics effects, precisely, to search for the fourth generation quarks (t ',b ').
Subject Keywords
B-physics
,
Beyond standard model
URI
https://hdl.handle.net/11511/65388
Journal
JOURNAL OF HIGH ENERGY PHYSICS
Collections
Department of Physics, Article
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V. Bashiry and K. Azizi, “The effects of fourth generation on the total branching ratio and the lepton polarization in Lambda(b)->Lambda l(+) l(-) decay,”
JOURNAL OF HIGH ENERGY PHYSICS
, pp. 0–0, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65388.