Measurement of Coherent Production ofπ±in Neutrino and Antineutrino Beams on Carbon fromEνof 1.5 to 20 GeV

Autor: J. Devan, B. P. Ziemer, B. G. Tice, Ronald Ransome, H. Schellman, J. L. Palomino, A. Bravar, L. Aliaga, A. Higuera, L. Ren, A. Gomez, R. Fine, C. J. Solano Salinas, B. Messerly, R. Gran, E. Valencia, C. E. Patrick, Kevin Scott McFarland, D. Zhang, D. A. Martinez Caicedo, H. da Motta, A. Mislivec, J. Mousseau, A. Bodek, P. A. Rodrigues, L. Fields, M. Kordosky, M. Betancourt, N. Tagg, T. Walton, G. Zavala, Anatoly Butkevich, C. L. McGivern, John Miller, M. Wospakrik, V. Paolone, A. Bercellie, K. Hurtado, H. R. Gallagher, D. A. Harris, H. S. Budd, F. D. Snider, Juan C. Felix, J. Osta, A. Norrick, J. Chvojka, J. G. Morfín, T. Le, T. Muhlbeier, William Brooks, G. A. Fiorentini, B. Eberly, C. M. Marshall, S. A. Dytman, M. F. Carneiro, W. A. Mann, C. M. Castromonte, J. Wolcott, M. E. Christy, G. A. Díaz, D. W. Schmitz, E. Maher, J. Park, J. Kleykamp, D. Ruterbories, A. M. McGowan, Gabriel Perdue, J. K. Nelson, O. Altinok, H. Ray, S. Manly, D. Naples
Rok vydání: 2014
Předmět:
Zdroj: Physical Review Letters. 113
ISSN: 1079-7114
0031-9007
DOI: 10.1103/physrevlett.113.261802
Popis: Neutrino-induced coherent charged pion production on nuclei ν(–)μA → μ±π∓A is a rare, inelastic interaction in which a small squared four-momentum |t| is transferred to the recoil nucleus, leaving it intact in the reaction. In the scintillator tracker of MINERvA, we remove events with evidence of particles from nuclear breakup and reconstruct |t| from the final-state pion and muon. In addition, we select low |t| events to isolate a sample rich in coherent candidates. By selecting low |t| events, we produce a model-independent measurement of the differential cross section for coherent scattering of neutrinos and antineutrinos on carbon. We find poor agreement with the predicted kinematics in neutrino generators used by current oscillation experiments.
Databáze: OpenAIRE