Neutral strange particle production in neutrino and antineutrino charged-current interactions on neon

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.6691· OSTI ID:6865578

DeProspo, D; Kalelkar, M; Aderholz, M; Akbari, H; Allport, P P; Ammosov, V V; Andryakov, A; Asratyan, A; Badyal, S K; Ballagh, H C; Baton, J; Barth, M; Bingham, H H; Brucker, E B; Burnstein, R A; Cence, R J; Chatterjee, T K; Clayton, E F; Corrigan, G; Coutures, C ; Devanand,; De Wolf, E; Ermolov, P; Erofeeva, I; Faulkner, P J.W.; Foeth, H; Fretter, W B; Gapienko, G; Gupta, V K; Hanlon, J; Harigel, G; Harris, F A; Ivanilov, A; Jabiol, M; Jacques, P; Jain, V; Jones, G T; Jones, M D; Kafka, T; Kaftanov, V; Kasper, P; Kobrin, V; Kohli, J M; Koller, E L; Korablev, V; Kubantsev, M; Lauko, M; Lukina, O; Lys, J E; Lyutov, S; Marage, P; Milburn, R H; Mittra, I S; Mobayyen, M M; Moreels, J; Morrison, D R.O.; Moskalev, V; Murzin, V; Myatt, G; Nailor, P; Naon, R; Napier, A; Neveu, M; Passmore, D; Peters, M W; Peterson, V Z; Plano, R; Rao, N K; Rubin, H A; Ryasakov, S; Sacton, J; Sambyal, S S; Schmitz, N; Schneps, J; Singh, J B

A study has been made of neutral strange particle production in [nu][sub [mu]][ital Ne] and [bar [nu]][sub [mu]][ital Ne] charged-current interactions at a higher energy than any previous study. The experiment was done at the Fermilab Tevatron using the 15-ft. bubble chamber, and the data sample consists of 814(154) observed neutral strange particles from 6263(1115) [nu]([bar [nu]]) charged-current events. For the [nu] beam (average event energy [l angle][ital E][sub [nu]][r angle]=150 GeV), the average multiplicities per charged-current event have been measured to be 0.408[plus minus]0.048 for [ital K][sup 0], 0.127[plus minus]0.014 for [Lambda], and 0.015[plus minus]0.005 for [bar [Lambda]], which are significantly greater than for lower-energy experiments. The dependence of rates on kinematical variables has been measured, and shows that both [ital K][sup 0] and [Lambda] production increase strongly with [ital E][sub [nu]], [ital W][sup 2], [ital Q][sup 2], and [ital y][sub [ital B]]. Compared to lower-energy experiments, single-particle distributions indicate that there is much more [ital K][sup 0] production for [ital x][sub [ital F]][gt][minus]0.2, and the enhanced [Lambda] production spans most of the kinematic region. [bar [Lambda]] production is mostly in the region [vert bar][ital x][sub [ital F]][vert bar][lt]0.3. The Lund model is shown to be in qualitative agreement with the data, but does not reproduce single-particle distributions in detail. For [ital x][sub [ital F]][gt][minus]0.2 there is a significant excess of [Lambda] production over the model's prediction. The [Lambda] hyperons are found to be polarized in the production plane.

• OSTI ID: 6865578
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 50:11; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTINEUTRINO REACTIONS
PARTICLE PRODUCTION
NEON 20 TARGET
NEUTRINO REACTIONS
STRANGE PARTICLES
NEUTRAL PARTICLES
ANTILAMBDA PARTICLES
BUBBLE CHAMBERS
CHARGED-CURRENT INTERACTIONS
FERMILAB TEVATRON
KAONS NEUTRAL
LAMBDA PARTICLES
MULTIPLICITY
ACCELERATORS
ANTIBARYONS
ANTIHYPERONS
ANTIMATTER
ANTIPARTICLES
BARYONS
BOSONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMIONS
GAS TRACK DETECTORS
HADRONS
HYPERONS
INTERACTIONS
KAONS
LAMBDA BARYONS
LEPTON REACTIONS
MATTER
MEASURING INSTRUMENTS
MESONS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLES
PSEUDOSCALAR MESONS
RADIATION DETECTORS
STRANGE MESONS
SYNCHROTRONS
TARGETS
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