Abstract
The Fermilab 15-ft bubble chamber has been exposed to a quadrupole triplet neutrino beam produced at the Tevatron. The ratio of to in the beam is approximately 2.5. The mean event energy for -induced charged-current events is 150 GeV, and for -induced charged-current events it is 110 GeV. A total of 64 dimuon candidates (1+, 52 -+ and -, and 11 --) is observed in the data sample of approximately 13 300 charged-current events. The number and properties of the -- and + candidates are consistent with their being produced by background processes, the important sources being and K decay and punchthrough. The 90%-C.L. upper limit for --/- for muon momenta above 4 GeV/c is 1.2×10-3, and for momenta above 9 GeV/c this limit is 1.1×10-3. The opposite-sign-dimuono single-muon ratio is (0.62±0.13)% for muon momenta above 4 GeV/c. There are eight neutral strange particles in the opposite-sign sample, leading to a rate per dimuon event of 0.65±0.29. The opposite-sign-dimuon sample is consistent with the hypothesis of charm production and decay.
| Original language | English |
|---|---|
| Pages (from-to) | 2057-2073 |
| Number of pages | 17 |
| Journal | Physical Review D |
| Volume | 41 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1990 |
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