Double-lepton polarization asymmetries in Lambda(b)->Lambda l(+)l(-) decay

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Aliev T., Bashiry V., Savci M.

EUROPEAN PHYSICAL JOURNAL C, vol.38, no.3, pp.283-295, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 3
  • Publication Date: 2004
  • Doi Number: 10.1140/epjc/s2004-02045-6
  • Journal Name: EUROPEAN PHYSICAL JOURNAL C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.283-295
  • Middle East Technical University Affiliated: Yes

Abstract

Double-lepton polarization asymmetries in Lambda(b) --> Lambdal(+)l(-) 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.