Properties of the hadronic system resulting from nu-bar/sub. mu. //sub p/interactions

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.17.1· OSTI ID:5087018

Derrick, M; Gregory, P; Hyman, L G; Jaeger, K; Lissauer, D; Miller, R J; Musgrave, B; Phelan, J J; Schreiner, P; Singer, R; Barish, S J; Engler, A; Keyes, G; Kikuchi, T; Kraemer, R; Barnes, V E; Carmony, D D; Garfinkel, A F; Laasanen, A T

The properties of the final-state hadronic system in antineutrino-proton charged-current interactions are presented. The events were observed in Fermilab 15-foot hydrogen bubble chamber. The average energy of the events is - 30 GeV, but there are some interactions beyond 100 GeV. The mean multiplicity of the charged hadrons varies as = (0.06 +- 0.60) + (1.22 +- 0.03)lnW/sup 2/ for hadronic masses W in the range 1.0 < W/sup 2/ < 50 GeV/sup 2/. By contrast, the multiplicity depends only weakly on the four-momentum transfer between the leptons. The mean pion multiplicities for events with three or more charged tracks are found to be = 1.64 +- 0.04, = 1.16 +- 0.13, for ..pi../sup -/ and ..pi../sup 0/ production, respectively. By comparing the number of positive tracks with ..pi../sup -/ data from neutrino production, we deduce a mean proton multiplicity of 0.53 +- 0.15. The single-particle distributions in both longitudinal and transverse momentum are found to be similar to those for nondiffractive production in hadronic collisions. The fragmentation properties of the final-state d quarks are compared to the expectations of the quark-parton model. The fraction of observed neutral-strange-particle production for events with three or more charged tracks is 0.08 +- 0.015 and is consistent with coming completely from associated production.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5087018
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 17:1; ISSN PRVDA
• 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
ANTILEPTON-PROTON INTERACTIONS
ANTINEUTRINO-NUCLEON INTERACTIONS
ANTINEUTRINO-PROTON INTERACTIONS
BOSONS
BUBBLE CHAMBERS
CHARGED-CURRENT INTERACTIONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY RANGE
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
HADRONS
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LEPTON-PROTON INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
MULTIPLICITY
NEUTRINO-NUCLEON INTERACTIONS
NEUTRINO-PROTON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTON MODEL
PIONS
PIONS MINUS
PSEUDOSCALAR MESONS
QUARK MODEL
RADIATION DETECTORS
TRANSVERSE MOMENTUM