Analysis of B-s -> phi l(+)l(-) decay with new-physics effects

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Yilmaz U. O.

EUROPEAN PHYSICAL JOURNAL C, cilt.58, sa.4, ss.555-568, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Sayı: 4
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1140/epjc/s10052-008-0784-2
  • Dergi Adı: EUROPEAN PHYSICAL JOURNAL C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.555-568
  • Hacettepe Üniversitesi Adresli: Hayır

Özet

The rare B-s -> phi l(+)l(-) decay is investigated by using the most general model-independent effective Hamiltonian for l=mu,tau. The calculated value of Br(B-s -> phi mu(+)mu(-)) = 1.92x10(-6) is consistent with the experimental upper bound. The dependencies of the branching ratios and polarization asymmetries of leptons and combined lepton-antilepton asymmetries on the new Wilson coefficients are presented. The analysis shows that the branching ratios and the lepton-polarization asymmetries are very sensitive to scalar- and tensor-type interactions. The results obtained in this work will be very useful in searching new physics beyond the standard model.