Upper limits on charm-changing neutral-current interactions

Journal Article · Mon Apr 18 04:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.1614· OSTI ID:5228059

Haas, P; Hempstead, M; Jensen, T; Johnson, D R; Kagan, H; Kass, R; Baringer, P; McIlwain, R L; Miller, D H; Ng, C R; others, and

We report on a search for charm-changing neutral-current decays and lepton-family-number--nonconserving decays of charmed hadrons using inclusive and exclusive decays of charmed hadrons into oppositely charged dileptons. We find no evidence for such interactions. The upper limits on the branching ratio for inclusive charm decay to dileptons are B(c..-->..X..mu../sup +/..mu../sup -/)<1.8 x 10/sup -2/, B(c..-->..Xe/sup +/e/sup -/)<2.2 x 10/sup -3/, and B(c..-->..X..mu../sup +- /e/sup minus-or-plus/)<3.7 x 10/sup -3/ at 90% confidence level. Upper bounds are also presented for the branching ratios of several exclusive modes

• Research Organization: Ohio State University, Columbus, Ohio, 43210
• OSTI ID: 5228059
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 60:16; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Weak Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
COMPOSITE MODELS
CROSS SECTIONS
D MESONS
DECAY
ELECTRONS
ELEMENTARY PARTICLES
EXCLUSIVE INTERACTIONS
FERMIONS
FLAVOR MODEL
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LEPTONIC DECAY
LEPTONS
MASS SPECTRA
MATHEMATICAL MODELS
MESONS
MUONS
NEUTRAL-CURRENT INTERACTIONS
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PSEUDOSCALAR MESONS
QUARK MODEL
SPECTRA
WEAK INTERACTIONS
WEAK PARTICLE DECAY