Search for D+(s) to pi+ mu+ mu- and D+(s) to pi- mu+ mu+ decays

Collaboration
Apr 23, 2013
21 pages
Published in:
  • Phys.Lett.B 724 (2013) 203-212
  • Published: Jul 23, 2013
e-Print:
Report number:
  • LHCB-PAPER-2012-051,
  • CERN-PH-EP-2013-061
Experiments:

Citations per year

2013201620192022202402468101214
Abstract: (Elsevier)
A search for non-resonant D(s)+→π+μ+μ− and D(s)+→π−μ+μ+ decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 1.0 fb −1 , at s=7TeV recorded by the LHCb experiment in 2011. No signals are observed and the 90% (95%) confidence level (CL) limits on the branching fractions are found to be B(D+→π+μ+μ−)<7.3(8.3)×10−8, B(Ds+→π+μ+μ−)<4.1(4.8)×10−7, B(D+→π−μ+μ+)<2.2(2.5)×10−8, B(Ds+→π−μ+μ+)<1.2(1.4)×10−7. These limits are the most stringent to date.
Note:
  • 21 pages, 5 figures
  • p p: scattering
  • p p: colliding beams
  • D/s+: semileptonic decay
  • D/s+: branching ratio
  • branching ratio: upper limit
  • LHC-B
  • CERN LHC Coll
  • experimental results
  • D/s+ --> pi+ muon+ muon-
  • D/s+ --> pi- 2muon+