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Double-lepton polarization asymmetries in \(\Lambda_b \rightarrow \Lambda \ell^ + \ell^-\) decay

  • theoretical physics
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Abstract.

Double-lepton polarization asymmetries in \(\Lambda_b \rightarrow \Lambda \ell^ + \ell^-\) decay are calculated using a general, model independent form of the effective Hamiltonian. The sensitivities of these asymmetries to the new Wilson coefficients are studied in detail. Furthermore, the correlations between averaged double-lepton polarization asymmetry and branching ratio are analyzed. It is shown that there exist certain regions of the new Wilson coefficients where new physics can be established by measuring the double-lepton polarization asymmetries only.

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Authors and Affiliations

  1. Physics Department, Middle East Technical University, 06531, Ankara, Turkey

    T. M. Aliev, V. Bashiry & M. Savcí

Authors
  1. T. M. Aliev
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  2. V. Bashiry
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  3. M. Savcí
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Corresponding author

Correspondence to T. M. Aliev.

Additional information

Received: 23 September 2004, Published online: 18 November 2004

PACS:

12.60.-i, 13.30.-a, 13.88. + e

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Aliev, T.M., Bashiry, V. & Savcí, M. Double-lepton polarization asymmetries in \(\Lambda_b \rightarrow \Lambda \ell^ + \ell^-\) decay. Eur. Phys. J. C 38, 283–295 (2004). https://doi.org/10.1140/epjc/s2004-02045-6

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