Published May 1, 2010 | Version v1
Journal article Metadata-only

Search for leptonic decays of D0 mesons

Creators

  • 1. J. Stefan Institute, Ljubljana (Slovenia)
  • 2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)

Description

We search for the flavor-changing neutral current decays D0→μ+μ- and D0→e+e-, and for the lepton-flavor violating decays D0→e±μ± using 660 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no evidence for any of these decays. We obtain significantly improved upper limits on the branching fractions: B(D0→μ+μ-)<1.4x10-7, B(D0→e+e-)<7.9x10-8, and B(D0→e+μ-)+B(D0→μ+e-)<2.6x10-7 at 90% confidence level.

Additional details

Identifiers

DOI
10.1103/PhysRevD.81.091102;
arXiv
arXiv:1003.2345v2;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
81
Journal Issue
9
Journal Page Range
p. 091102-091102.6
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42003070
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ASYMMETRY; BRANCHING RATIO; D NEUTRAL MESONS; ELECTRONS; FLAVOR MODEL; KEK LINAC; LEPTONIC DECAY; MUONS MINUS; MUONS PLUS; NEUTRAL CURRENTS; POSITRONS
Descriptors DEC
ACCELERATORS; ALGEBRAIC CURRENTS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BASIC INTERACTIONS; BOSONS; CHARM PARTICLES; CHARMED MESONS; COMPOSITE MODELS; CURRENTS; D MESONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTERACTIONS; LEPTONS; LINEAR ACCELERATORS; MATHEMATICAL MODELS; MATTER; MESONS; MUONS; PARTICLE DECAY; PARTICLE MODELS; PSEUDOSCALAR MESONS; QUARK MODEL; WEAK INTERACTIONS; WEAK PARTICLE DECAY

Optional Information

Notes
(c) 2010 The American Physical Society
Collaborations
Belle Collaboration