Measurement of Coherent Production of pi(+/-) in Neutrino and Antineutrino Beams on Carbon from E-upsilon of 1.5 to 20 GeV

No hay miniatura disponible
Aliaga, L
Altinok, O
Betancourt, M
Bodek, A
Bravar, A
Brooks, WK
Budd, H
Bustamante, MJ
Butkevich, A
Caicedo, DAM
Título de la revista
Revista ISSN
Título del volumen
American Physical Society
Proyectos de investigación
Unidades organizativas
Número de la revista
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
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
from the final-state pion and muon. We select low
events to isolate a sample rich in coherent candidates. By selecting low
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.
This work was supported by the Fermi National Accelerator Laboratory under U.S. Department of Energy Contract No. DE-AC02-07CH11359, which included the MINERvA construction project. Construction support was also granted by the United States National Science Foundation under Grant No. PHY-0619727 and by the University of Rochester. Support for participating scientists was provided by NSF and DOE (USA), by CAPES and CNPq (Brazil), by CoNaCyT (Mexico), by CONICYT (Chile), by CONCYTEC, DGI-PUCP and IDI/IGI-UNI (Peru), by Latin American Center for Physics (CLAF), and by RAS and the Russian Ministry of Education and Science (Russia). We thank the MINOS Collaboration for use of its near detector data. Finally, we thank the staff of Fermilab for support of the beam line and the detector.
Palabras clave
Partículas Elementales, Carbono, Neutrones