Rights statement: © 2015 American Physical Society
Final published version, 1.15 MB, PDF document
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Study of quasielastic scattering using charged-current nu_mu-iron interactions in the MINOS Near Detector
AU - Adamson, P.
AU - Anghel, I.
AU - Aurisano, A.
AU - Barr, G.
AU - Bishai, M.
AU - Blake, A.
AU - Bock, G. J.
AU - Bogert, D.
AU - Cao, S. V.
AU - Castromonte, C. M.
AU - Childress, S.
AU - Coelho, J. A. B.
AU - Corwin, L.
AU - Cronin-Hennessy, D.
AU - Jong, J. K. de
AU - Devan, A. V.
AU - Devenish, N. E.
AU - Diwan, M. V.
AU - Escobar, C. O.
AU - Evans, J. J.
AU - Falk, E.
AU - Feldman, G. J.
AU - Frohne, M. V.
AU - Gallagher, H. R.
AU - Gomes, R. A.
AU - Goodman, M. C.
AU - Gouffon, P.
AU - Graf, N.
AU - Gran, R.
AU - Grzelak, K.
AU - Habig, A.
AU - Hahn, S. R.
AU - Hartnell, J.
AU - Hatcher, R.
AU - Holin, A.
AU - Huang, J.
AU - Hylen, J.
AU - Irwin, G. M.
AU - Isvan, Z.
AU - James, C.
AU - Jensen, D.
AU - Kafka, T.
AU - Kasahara, S. M. S.
AU - Koizumi, G.
AU - Kordosky, M.
AU - Kreymer, A.
AU - Lang, K.
AU - Ling, J.
AU - Litchfield, P. J.
AU - Nowak, J. A.
AU - MINOS Collaboration
N1 - © 2015 American Physical Society 20 pages, 13 figures, 3 Tables Accepted for publication in PRD
PY - 2015/1/8
Y1 - 2015/1/8
N2 - Kinematic distributions from an inclusive sample of 1.41 x 10^6 charged-current nu_mu interactions on iron, obtained using the MINOS Near Detector exposed to a wide-band beam with peak flux at 3 GeV, are compared to a conventional treatment of neutrino scattering within a Fermi gas nucleus. Results are used to guide the selection of a subsample enriched in quasielastic nu_mu Fe interactions, containing an estimated 123,000 quasielastic events of incident energies 1 = 2.79 GeV. Four additional subsamples representing topological and kinematic sideband regions to quasielastic scattering are also selected for the purpose of evaluating backgrounds. Comparisons using subsample distributions in four-momentum transfer Q^2 show the Monte Carlo model to be inadequate at low Q^2. Its shortcomings are remedied via inclusion of a Q^2-dependent suppression function for baryon resonance production, developed from the data. A chi-square fit of the resulting Monte Carlo simulation to the shape of the Q^2 distribution for the quasielastic-enriched sample is carried out with the axial-vector mass M_A of the dipole axial-vector form factor of the neutron as a free parameter. The effective M_A which best describes the data is 1.23 +0.13/-0.09 (fit) +0.12/-0.15 (syst.) GeV.
AB - Kinematic distributions from an inclusive sample of 1.41 x 10^6 charged-current nu_mu interactions on iron, obtained using the MINOS Near Detector exposed to a wide-band beam with peak flux at 3 GeV, are compared to a conventional treatment of neutrino scattering within a Fermi gas nucleus. Results are used to guide the selection of a subsample enriched in quasielastic nu_mu Fe interactions, containing an estimated 123,000 quasielastic events of incident energies 1 = 2.79 GeV. Four additional subsamples representing topological and kinematic sideband regions to quasielastic scattering are also selected for the purpose of evaluating backgrounds. Comparisons using subsample distributions in four-momentum transfer Q^2 show the Monte Carlo model to be inadequate at low Q^2. Its shortcomings are remedied via inclusion of a Q^2-dependent suppression function for baryon resonance production, developed from the data. A chi-square fit of the resulting Monte Carlo simulation to the shape of the Q^2 distribution for the quasielastic-enriched sample is carried out with the axial-vector mass M_A of the dipole axial-vector form factor of the neutron as a free parameter. The effective M_A which best describes the data is 1.23 +0.13/-0.09 (fit) +0.12/-0.15 (syst.) GeV.
KW - hep-ex
U2 - 10.1103/PhysRevD.91.012005
DO - 10.1103/PhysRevD.91.012005
M3 - Journal article
VL - 91
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
IS - 1
M1 - 012005
ER -