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arxiv: 1406.6415 · v3 · pith:BEAMAL2Enew · submitted 2014-06-24 · ✦ hep-ex

Charged Pion Production in ν_μ Interactions on Hydrocarbon at langle E_(ν)rangle= 4.0 GeV

B. Eberly , L. Aliaga , O. Altinok , M.G. Barrios Sazo , L. Bellantoni , M. Betancourt , A. Bodek , A. Bravar
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H. Budd M. J. Bustamante A. Butkevich D.A. Martinez Caicedo M.F. Carneiro M.E. Christy J. Chvojka H. da Motta M. Datta J. Devan S.A. Dytman G.A. D\'iaz J. Felix L. Fields R. Fine G.A. Fiorentini A.M. Gago R. Galindo H. Gallagher T. Golan R. Gran D.A. Harris A. Higuera K. Hurtado T. Kafka J. Kleykamp M. Kordosky T. Le E. Maher S. Manly W.A. Mann C.M. Marshall K.S. McFarland C.L. McGivern A.M. McGowan B. Messerly J. Miller A. Mislivec J.G. Morf\'in J. Mousseau T. Muhlbeier D. Naples J.K. Nelson A. Norrick J. Osta J.L. Palomino V. Paolone J. Park C.E. Patrick G.N. Perdue L. Rakotondravohitra M.A. Ramirez R.D. Ransome H. Ray L. Ren P.A. Rodrigues D. Ruterbories G. Salazar H. Schellman D.W. Schmitz C. Simon J.T. Sobczyk C.J. Solano Salinas N. Tagg B.G. Tice E. Valencia T. Walton J. Wolcott M. Wospakrik G. Zavala A. Zegarra D. Zhang B.P. Ziemer (The MINERvA Collaboration)
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classification ✦ hep-ex
keywords pionproductionchargedinteractionscalculationsenergyneutrinoangle
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Charged pion production via charged current $\nu_{\mu}$ interactions on plastic (CH) is studied using the MINERvA detector exposed to the NuMI wideband neutrino beam at Fermilab. Events with hadronic invariant mass W $<$ 1.4 GeV are selected to isolate single pion production, which is expected to occur primarily through the $\Delta(1232)$ resonance. Cross sections as functions of pion production angle and kinetic energy are reported and compared to predictions from different theoretical calculations and generator-based models, for neutrinos ranging in energy from 1.5 GeV to 10 GeV. The data are best described by calculations which include significant contributions from pion intranuclear rescattering. These measurements constrain the primary interaction rate and the role of final state interactions in pion production, both of which need to be well understood by neutrino oscillation experiments.

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  1. Comparisons of triple-differential cross sections for quasielastic-like $\nu_\mu$-hydrocarbon interactions using $\langle E_\nu\rangle \sim$ 3~GeV versus $\sim$ 6~GeV beams in MINERvA

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    MINERvA compares quasielastic-like cross sections at two neutrino beam energies and finds discrepancies pointing to overestimated final state interactions for protons and pions.