mu. sup minus e+ dilepton production in charged-current. nu. sub. mu. interactions

Journal Article · Wed May 01 04:00:00 EDT 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.2765· OSTI ID:5539002

Baker, N J; Kahn, S A; Murtagh, M J; Samios, N P; Tanaka, M ^[1]; Baltay, C; Hyatt, E R; Manly, S; Steiner, R ^[2]; Jacques, P F; Kalelkar, M; Plano, R J; Stamer, P E ^[3]

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1. Brookhaven National Laboratory, Upton, New York 11973 (USA)
2. Columbia University, New York, New York 10027 (USA)
3. Rutgers University, New Brunswick, New Jersey 08903 (USA)

The production of {mu}{sup {minus}}{ital e+} dileptons by muon neutrinos is studied in a high-statistics bubble-chamber experiment. The experiment consisted of exposing the Fermilab 15-ft bubble chamber filled with a heavy Ne-H{sub 2} mix to a wideband neutrino beam. In a total sample of 146 700{plus minus}11 700 charged-current interactions, 461 events with an {ital e}{sup +}({ital P}{sub {ital e}}{sup +}{gt}300 MeV/{ital c}) and a {mu}{sup {minus}} are observed. The rate for {mu}{sup {minus}}{ital e+} dilepton production in measured to be (0.42{plus minus}0.06)%. The energy dependence of this rate is presented. The kinematic distributions for the {mu}{sup {minus}}{ital e+} events are consistent with charm production and subsequent semileptonic decay. A total of 60 {ital K}{sub {ital S}}{sup 0} and 31 {Lambda}{sup 0} decays were observed in the {mu}{sup {minus}}{ital e+} event sample. The measured rates for neutral-strange-particle production are 0.78{plus minus}0.12 K{sup 0}/{ital {bar K}}{sup 0}'s and 0.19{plus minus}0.04 {Lambda}{sup 0}'s per {mu}{sup {minus}}{ital e+} event. Finally, rates for {Lambda}{sub {ital c}}{sup +}, {ital D}{sup 0}, and {ital D}{sup +} production in charged-current {nu}{sub {mu}} interactions are derived. They are found to be (4{sub {minus}2}{sup +10})%, (1.7{sub {minus}0.7}{sup +0.5})%, and (1.3{sub {minus}0.5}{sup +0.4})%, respectively.

• OSTI ID: 5539002
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 43:9; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYONS
BOSONS
BUBBLE CHAMBERS
CHARGED-CURRENT INTERACTIONS
CHARM PARTICLES
CHARMED MESONS
D MESONS
D NEUTRAL MESONS
D PLUS MESONS
DECAY
DEUTERIUM
ELEMENTARY PARTICLES
ELEMENTS
ENERGY DEPENDENCE
FERMIONS
FLUIDS
GAS TRACK DETECTORS
GASES
HADRONS
HYDROGEN ISOTOPES
INTERACTIONS
ISOTOPES
KAONS
KAONS NEUTRAL
KAONS NEUTRAL SHORT-LIVED
LAMBDA C PLUS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LEPTONS
LIGHT NUCLEI
MATTER
MEASURING INSTRUMENTS
MESONS
MUONS
MUONS MINUS
NEON
NEUTRINO-NUCLEON INTERACTIONS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSITRONS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
RARE GASES
SEMILEPTONIC DECAY
STABLE ISOTOPES
STRANGE MESONS
STRANGE PARTICLES
WEAK PARTICLE DECAY