Charged Current Events with Neutral Strange Particles in High-Energy Antineutrino Interactions

VI SIROTENKO, JP BERGE, D BOGERT, R HANFT, JA MALKO, GI MOFFATT, FA NEZRICK, R ORAVA, J WOLFSON,VV AMMOSOV,AG DENISOV,GS GAPIENKO,VA GAPIENKO,VI KLUKHIN,VI KORESHEV,PV PITUKHIN,EA SLOBODYUK,ZV USUBOV,VG ZAETZ, VI EFREMENKO, AV FEDOTOV, PA GORICHEV, VS KAFTANOV, GK KLIGER, VZ KOLGANOV, SP KRUTCHININ, MA KUBANTSEV, LV MAKHLJUEVA, VI SHEKELJAN, VG SHEVCHENKO, J BELL, CT COFFIN, W LOUIS, BP ROE, RT ROSS, AA SEIDL,D SINCLAIR, E WANG

Nuclear physics B（1981）

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摘要

The results of a study of strange particle production in charged current νμN interactions in the Fermilab 15 ft bubble chamber filled with a heavy NeH2 mixture are presented. Production rates and average multiplicities of K0's and Λ's as functions of W2 and Q2 are given. The experimental data agree well with the quark-parton model predictions if a yield of 0.06 ± 0.02 of K0's and Λ's from charm production is included. Upper limits for D-meson production are given and the shape of the charmed quark fragmentation function is discussed. Inclusive production of the K∗(890) and Σ(1385) resonances is measured and it is shown that only about 5% of the K0 mesons and Λ hyperons results from resonance decays. Relative production rates of neutral strange particles on proton and neutron targets are studied.

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关键词

Neutrino Interactions,Neutrino Detection,Neutrino Oscillations,Neutrino Masses,Hyperpolarized Gases

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