Neutrino Production of Same Sign Dimuons at the Fermilab Tevatron

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1992

DOI:https://doi.org/10.2172/1372869· OSTI ID:1372869

Sandler, Pamela Helen ^[1]

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1. Univ. of Wisconsin, Madison, WI (United States)

The rate of neutrino and antineutrino induced same-sign dimuon production was measured using a sample of 220 μ^-μ^- events and 15 μ⁺μ⁺ events, normalized to 1.5 million neutrino-induced charged-current events and 0.3 million antineutrino-induced events with energies between 30 GeV and 600 GeV. The data was obtained with the Chicago-Columbia- Fermilab-Rochester neutrino detector at the Fermilab Tevatron during two experiments, E744 and E770. The CCFR detector is a combined steel target and calorimeter which is followed by a muon-momentum spectrometer. After background subtraction, the prompt rate of same-sign dimuon production is (0.53±0.24)x$$10^{-4}$$ per charged-current event for neutrinos and (0.52±0.33)x $$10^{-4}$$ per charged-current events for antineutrinos. These rates are consistent with Standard Model predictions for cc gluon bremsstrahlung and with zero. The kinematic distributions of the same-sign dimuon signal are consistent with those of the nonprompt background due to meson decays in the hadron shower of a charged-current events and cc gluon bremsstrahlung.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1372869
• Report Number(s): RX--1381 (WISCONSIN); FERMILAB-THESIS--1992-27; UMI--92-18364-MC; 332796
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS