26 research outputs found
Search for narrow nucleon resonances below pion threshold in the H(e,e′π+)X and 2H(e,e′p)X reactions
In two series of high-resolution coincidence experiments at the three-spectrometer facility at MAMI, the H(e, epi+)X and 2H(e, ep)X reactions were studied to search for narrow nucleon resonances below pion threshold. The missing-mass resolution was 0.6-1.6 MeV/c2 full width at half maximum in the proton experiment and 0.9-1.3 MeV/c2 in the deuteron experiment. The experiments covered the missing-mass region from the neutron mass up to about 1050 and 1100 MeV/c2, respectively. None of our measurements showed a signal for narrow resonances to a level of down to 10-4 with respect to the neutron peak in the missing-mass spectra
Measurement of inclusive charged current interactions on carbon in a few-GeV neutrino beam
The SciBooNE Collaboration reports a measurement of inclusive charged current
interactions of muon neutrinos on carbon with an average energy of 0.8 GeV
using the Fermilab Booster Neutrino Beam. We compare our measurement with two
neutrino interaction simulations: NEUT and NUANCE. The charged current
interaction rates (product of flux and cross section) are extracted by fitting
the muon kinematics, with a precision of 6-15% for the energy dependent and 3%
for the energy integrated analyses. We also extract CC inclusive interaction
cross sections from the observed rates, with a precision of 10-30% for the
energy dependent and 8% for the energy integrated analyses. This is the first
measurement of the CC inclusive cross section on carbon around 1 GeV. These
results can be used to convert previous SciBooNE cross section ratio
measurements to absolute cross section values.Comment: 21 pages, 16 figures. Accepted by Phys. Rev. D. Minor revisions to
match the accepted versio
Search for Charged Current Coherent Pion Production on Carbon in a Few-GeV Neutrino Beam
The SciBooNE Collaboration has performed a search for charged current
coherent pion production from muon neutrinos scattering on carbon, \nu_\mu
^{12}C \to \mu^- ^{12}C \pi^+, with two distinct data samples. No evidence for
coherent pion production is observed. We set 90% confidence level upper limits
on the cross section ratio of charged current coherent pion production to the
total charged current cross section at 0.67\times 10^{-2} at mean neutrino
energy 1.1 GeV and 1.36\times 10^{-2} at mean neutrino energy 2.2 GeV.Comment: 18 pages, 16 figures, Minor revisions to match version accepted for
publication in Physical Review
Search for charged current coherent pion production on carbon in a few-GeV neutrino beam
The SciBooNE Collaboration has performed a search for charged current coherent pion production from muon neutrinos scattering on carbon, νμC12→μ-C12π+, with two distinct data samples. No evidence for coherent pion production is observed. We set 90% confidence level upper limits on the cross section ratio of charged current coherent pion production to the total charged current cross section at 0.67×10-2 at mean neutrino energy 1.1 GeV and 1.36×10-2 at mean neutrino energy 2.2 GeV. © 2008 The American Physical Society
Improved measurement of neutral current coherent π0 production on carbon in a few-GeV neutrino beam
The SciBooNE Collaboration reports a measurement of neutral current coherent π0 production on carbon by a muon neutrino beam with average energy 0.8 GeV. The separation of coherent from inclusive π0 production has been improved by detecting recoil protons from resonant π0 production. We measure the ratio of the neutral current coherent π0 production to total charged current cross sections to be (1.16±0.24)×10-2. The ratio of charged current coherent π+ to neutral current coherent π0 production is calculated to be 0.14-0.28+0.30, using our published charged current coherent pion measurement. © 2010 The American Physical Society
Measurement of inclusive charged current interactions on carbon in a few-GeV neutrino beam
We report a measurement of inclusive charged current interactions of muon neutrinos on carbon with an average energy of 0.8 GeV using the Fermilab Booster Neutrino Beam. We compare our measurement with two neutrino interaction simulations: NEUT and NUANCE. The charged current interaction rates (product of flux and cross section) are extracted by fitting the muon kinematics, with a precision of 6%-15% for the energy dependent and 3% for the energy integrated analyses. We also extract charged current inclusive interaction cross sections from the observed rates, with a precision of 10%-30% for the energy dependent and 8% for the energy integrated analyses. This is the first measurement of the charged current inclusive cross section on carbon around 1 GeV. These results can be used to convert previous SciBooNE cross-section ratio measurements to absolute cross-section values. © 2011 American Physical Society
Measurement of neutral current coherent neutral pion production on carbon in a few-GeV neutrino beam
The SciBooNE Collaboration reports a measurement of neutral current coherent
neutral pion production on carbon by a muon neutrino beam with average energy
0.8 GeV. The separation of coherent from inclusive neutral pion production has
been improved by detecting recoil protons from resonant neutral pion
production. We measure the ratio of the neutral current coherent neutral pion
production to total charged current cross sections to be (1.16 +/- 0.24) x
10-2. The ratio of charged current coherent pion to neutral current coherent
pion production is calculated to be 0.14+0.30 -0.28, using our published
charged current coherent pion measurement.Comment: seven pages, 6 fiure
Measurement of neutral current coherent neutral pion production on carbon in a few-GeV neutrino beam
The SciBooNE Collaboration reports a measurement of neutral current coherent
neutral pion production on carbon by a muon neutrino beam with average energy
0.8 GeV. The separation of coherent from inclusive neutral pion production has
been improved by detecting recoil protons from resonant neutral pion
production. We measure the ratio of the neutral current coherent neutral pion
production to total charged current cross sections to be (1.16 +/- 0.24) x
10-2. The ratio of charged current coherent pion to neutral current coherent
pion production is calculated to be 0.14+0.30 -0.28, using our published
charged current coherent pion measurement.Comment: seven pages, 6 fiure