Lepton polarization effects in Lambda(b) -> Lambda l(+)l(-) decay in family non-universal Z ' model


ALIYEV T. , SAVCI M.

PHYSICS LETTERS B, cilt.718, ss.566-572, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 718 Konu: 2
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.physletb.2012.11.013
  • Dergi Adı: PHYSICS LETTERS B
  • Sayfa Sayıları: ss.566-572

Özet

Possible manifestation of the family non-universal Z' boson effects in lepton polarization in rare, exclusive baryonic Lambda(b) -> Lambda l(+)l(-) decay is examined. It is observed that the double lepton polarizations P-NN. P-TT and P-TN are sensitive to the Z' contribution. Moreover, it is found that the values of the polarized forward-backward asymmetry A(FB)(LL) are different in Standard Model (SM) and family non-universal Z' model in different regions of q(2), and therefore can serve as an efficient tool for establishing new physics beyond the SM. (C) 2012 Elsevier B.V. All rights reserved.