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Single neutral pion production by charged-current bar{ν}_μ interactions on hydrocarbon at langle E_ν rangle = 3.6 GeV

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arxiv 1503.02107 v2 pith:4OMRDDGS submitted 2015-03-06 hep-ex nucl-ex

Single neutral pion production by charged-current bar{ν}_μ interactions on hydrocarbon at langle E_ν rangle = 3.6 GeV

T. Le , J.L. Palomino , L. Aliaga , O. Altinok , A. Bercellie , A. Bodek , A. Bravar , W.K. Brooks
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A. Butkevich D.A. Martinez Caicedo M.F. Carneiro M.E. Christy J. Chvojka H. da Motta J. Devan S.A. Dytman G.A. D\'iaz B. Eberly J. Felix L. Fields R. Fine A.M. Gago H. Gallagher R. Gran D.A. Harris A. Higuera K. Hurtado M. Kordosky E. Maher S. Manly W.A. Mann C.M. Marshall K.S. McFarland C.L. McGivern A.M. McGowan J. Miller J.G. Morf\'in J. Mousseau J.K. Nelson A. Norrick J. Osta 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 H. Schellman D.W. Schmitz J.T. Sobczyk C.J. Solano Salinas N. Tagg B.G. Tice E. Valencia T. Walton J. Wolcott H. Yepes-Ramirez G. Zavala D. Zhang B.P.Ziemer (for the MINERvA collaboration)
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classification hep-ex nucl-ex
keywords productionneutralpionsingleantineutrinocharged-currentinteractionsmeasurement
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Single neutral pion production via muon antineutrino charged-current interactions in plastic scintillator (CH) is studied using the \minerva detector exposed to the NuMI low-energy, wideband antineutrino beam at Fermilab. Measurement of this process constrains models of neutral pion production in nuclei, which is important because the neutral-current analog is a background for $\bar{\nu}_e$ appearance oscillation experiments. The differential cross sections for $\pi^0$ momentum and production angle, for events with a single observed $\pi^0$ and no charged pions, are presented and compared to model predictions. These results comprise the first measurement of the $\pi^0$ kinematics for this process.

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Cited by 2 Pith papers

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    The most precise measurement to date of antineutrino-induced neutral pion production shows agreement with the GENIE model but indicates that other models underestimate the cross section in the Delta(1232) resonance region.

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