Constraint of the A medium energy neutrino flux using neutrino-electron elastic scattering
E. Valencia (Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA, Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Colonia Centro, Guanajuato 36000, Guanajuato México); D. Jena (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA); Nuruzzaman (Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680 Casilla 110-V, Valparaíso, Chile, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA); F. Akbar (AMU Campus, Aligarh, Uttar Pradesh 202001, India); L. Aliaga (Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA, Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Perú); et al - Show all 71 authors
Elastic neutrino scattering on electrons is a precisely known purely leptonic process that provides a standard candle for measuring neutrino flux in conventional neutrino beams. Using a total sample of 810 neutrino-electron scatters after background subtraction, the measurement reduces the normalization uncertainty on the NuMI beam flux between 2 and 20 GeV from 7.6 to 3.9%. This is the most precise measurement of neutrino-electron scattering to date, will reduce uncertainties on A’s absolute cross section measurements, and demonstrates a technique that can be used in future neutrino beams such as long baseline neutrino facility.
