학술논문
Single neutral pion production by charged-current ν ¯ μ interactions on hydrocarbon at 〈 E ν 〉 = 3.6 GeV
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article
Author
Le, T; Palomino, JL; Aliaga, L; Altinok, O; Bercellie, A; Bodek, A; Bravar, A; Brooks, WK; Butkevich, A; Caicedo, DA Martinez; Carneiro, MF; Christy, ME; Chvojka, J; da Motta, H; Devan, J; Dytman, SA; Díaz, GA; Eberly, B; Felix, J; Fields, L; Fine, R; Gago, AM; Gallagher, H; Gran, R; Harris, DA; Higuera, A; Hurtado, K; Kordosky, M; Maher, E; Manly, S; Mann, WA; Marshall, CM; McFarland, KS; McGivern, CL; McGowan, AM; Miller, J; Morfín, JG; Mousseau, J; Nelson, JK; Norrick, A; Osta, J; Paolone, V; Park, J; Patrick, CE; Perdue, GN; Rakotondravohitra, L; Ransome, RD; Ray, H; Ren, L; Rodrigues, PA; Ruterbories, D; Schellman, H; Schmitz, DW; Sobczyk, JT; Salinas, CJ Solano; Tagg, N; Tice, BG; Valencia, E; Walton, T; Wolcott, J; Yepes-Ramirez, H; Zavala, G; Zhang, D; Ziemer, BP
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Abstract
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 ν-e appearance oscillation experiments. The differential cross sections for π0 momentum and production angle, for events with a single observed π0 and no charged pions, are presented and compared to model predictions. These results comprise the first measurement of the π0 kinematics for this process.