A.A. Volkov

Quasielastic neutrino and antineutrino scattering total cross-sections, axial-vector form-factor

AbstractExperimental results on the study of quasielastic reactionsvμn→μ−p andn

Measurement of the νμN total cross section at 2–30 GeV in a skat neutrino experiment

bar v_u p to mu ^ + n

Muon flux measuring system for neutrino experiments at the IHEP accelerator

n in the energy range 3–30 GeV are presented in this paper. Spark chamber detector with Al filters has been exposed to the wide-band neutrino and antineutrino beams at Serpukhov. Neutrino and antineutrino data have been used to reconstruct the behaviour of axial-vector form-factorFA(Q2). We measured the total cross-sections as a function of energy. The parameterMA=(1.00±0.04) GeV/c2 has been determined under the assumption of the dipole parametrization and CVC hypothesis. Upper limit for the second class currents was estimated.

Observation of muon pairs in neutrino interactions at Serpukhov 70 GeV accelarator

Abstract Results of a search for prompt neutrinos in a beam-dump experiment with 70 GeV protons are reported. The observed rate is ν pr / π = (2.7 ± 2.2) × 10 −5 for mean neutrino energy 〈 E ν 〉 ≈ 5 GeV. An estimation on charmed meson production as a possible source of prompt neutrinos is given. Production rate of the axion relative to π 0 mesons is found to be less than 6 × 10 −9 (95% C . L .).

Further Search for Muonic Pairs in the Neutrino and Antineutrino Beams at the IHEP 70 GeV Accelerator

Abstract Data on the measurement of the v μ N total cross section at 2–30 GeV are presented. The observed behavior does not contradict a linear dependence on neutrino energy with slope S =0.73 ± 0.08.

QUASIELASTIC muon-neutrino n SCATTERING AT 3-GeV TO 30-GeV ENERGY

Abstract Charged current data of a spark chamber neutrino experiment at the 70 GeV Serpukhov accelerator (10 200 events in the v beam and 3600 events in the v beam with energies up to 30 GeV) have been analyzed. Total neutrino and antineutrino cross sections and v -distributions are obtained.

NEUTRINO AND ANTI-NEUTRINOS QUASIELASTIC SCATTERING AT 3-GEV TO 30-GEV

Abstract The methods to measure muon flux distributions in the muon filter of the IHEP neutrino beam are described. The construction and characteristics of the ionization chambers used as muon detectors are given. The detectors allow one to measure the muon fluxes with density from ⪆ 10 7 down to ∼10 2 muons/cm 2 at ∼3 μs pulse duration. The system provides both monitoring of the neutrino beam and measuring of the total muon fluxes for neutrino spectrum reconstruction. The detector sensitivity was constant within the limits of 2–3% during a one-year period of operation in the neutrino beam.

The Total Cross-sections for Neutrino and Anti-neutrino Interactions in the Energy Range 3-{GeV} to 30-{GeV}

Abstract A search for dimuons produced in a spark chamber experiment in neutrino and antineutrino beams of the Serpukhov accelerator is reported. The clear dimuon signal has been observed in vN interactions. R v = N (2 ω )/ N (1 ω )⩾ (6.2 ± 1.7) × 10 −3 in the energy interval 7.5 ÷ 30 GeV. From antineutrino data we conclude that in the same energy range R v ⩽ 1.1. × 10 −2 (90% C.L.) .