We have searched for the lepton-number violating processes B+→h−ℓ+ℓ+ with h−=K−/π− and ℓ+=e+/μ+, using a sample of 471±3 million BB⎯⎯⎯ events collected with the BABAR detector at the PEP-II e+e− collider at the SLAC National Accelerator Laboratory. We find no evidence for these decays and place 90%-confidence-level upper limits on their branching fractions ℬ(B+→π−e+e+)<2.3×10−8, ℬ(B+→K−e+e+)<3.0×10−8, ℬ(B+→π−μ+μ+)<10.7×10−8, and ℬ(B+→K−μ+μ+)<6.7×10−8.

Lees, J.P., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Palano, A., et al. (2012). Search for lepton-number violating processes in B+ -> h(-)l(+)l(+) decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(7), 1-8 [10.1103/PhysRevD.85.071103].

Search for lepton-number violating processes in B+ -> h(-)l(+)l(+) decays

PATRIGNANI, CLAUDIA;
2012

Abstract

We have searched for the lepton-number violating processes B+→h−ℓ+ℓ+ with h−=K−/π− and ℓ+=e+/μ+, using a sample of 471±3 million BB⎯⎯⎯ events collected with the BABAR detector at the PEP-II e+e− collider at the SLAC National Accelerator Laboratory. We find no evidence for these decays and place 90%-confidence-level upper limits on their branching fractions ℬ(B+→π−e+e+)<2.3×10−8, ℬ(B+→K−e+e+)<3.0×10−8, ℬ(B+→π−μ+μ+)<10.7×10−8, and ℬ(B+→K−μ+μ+)<6.7×10−8.
2012
Lees, J.P., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Palano, A., et al. (2012). Search for lepton-number violating processes in B+ -> h(-)l(+)l(+) decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(7), 1-8 [10.1103/PhysRevD.85.071103].
Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G....espandi
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/537426
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 43
  • ???jsp.display-item.citation.isi??? 24
social impact