Updated constraints on sterile neutrino mixing in the OPERA experiment using a new $\nu_e$ identification method
High Energy Physics - Experiment
2023-01-19 v3
Abstract
This paper describes a new identification method specifically designed to improve the low-energy () identification efficiency attained by enlarging the emulsion film scanning volume with the next generation emulsion readout system. A relative increase of 25-70% in the low-energy region is expected, leading to improvements in the OPERA sensitivity to neutrino oscillations in the framework of the 3 + 1 model. The method is applied to a subset of data where the detection efficiency increase is expected to be more relevant, and one additional candidate is found. The analysis combined with the appearance results improves the upper limit on to 0.016 at 90% C.L. in the MiniBooNE allowed region .
Keywords
Cite
@article{arxiv.2211.04636,
title = {Updated constraints on sterile neutrino mixing in the OPERA experiment using a new $\nu_e$ identification method},
author = {N. Agafonova and A. Alexandrov and A. Anokhina and S. Aoki and A. Ariga and T. Ariga and A. Bertolin and C. Bozza and R. Brugnera and S. Buontempo and M. Chernyavskiy and A. Chukanov and L. Consiglio and N. D'Ambrosio and G. De Lellis and M. De Serio and P. del Amo Sanchez and A. Di Crescenzo and D. Di Ferdinando and N. Di Marco and S. Dmitrievsky and M. Dracos and D. Duchesneau and S. Dusini and T. Dzhatdoev and J. Ebert and A. Ereditato and R. A. Fini and T. Fukuda and G. Galati and A. Garfagnini and V. Gentile and J. Goldberg and S. Gorbunov and Y. Gornushkin and G. Grella and A. M. Guler and C. Gustavino and C. Hagner and T. Hara and T. Hayakawa and A. Hollnagel and K. Ishiguro and A. Iuliano and K. Jakovcic and C. Jollet and C. Kamiscioglu and M. Kamiscioglu and S. H. Kim and N. Kitagawa and B. Klicek and K. Kodama and M. Komatsu and U. Kose and I. Kreslo and F. Laudisio and A. Lauria and A. Longhin and P. Loverre and A. Malgin and G. Mandrioli and T. Matsuo and V. Matveev and N. Mauri and E. Medinaceli and A. Meregaglia and S. Mikado and M. Miyanishi and F. Mizutani and P. Monacelli and M. C. Montesi and K. Morishima and M. T. Muciaccia and N. Naganawa and T. Naka and M. Nakamura and T. Nakano and K. Niwa and S. Ogawa and N. Okateva and K. Ozaki and A. Paoloni and L. Paparella and B. D. Park and L. Pasqualini and A. Pastore and L. Patrizii and H. Pessard and D. Podgrudkov and N. Polukhina and M. Pozzato and F. Pupilli and M. Roda and T. Roganova and H. Rokujo and G. Rosa and O. Ryazhskaya and O. Sato and A. Schembri and I. Shakiryanova and T. Shchedrina and E. Shibayama and H. Shibuya and T. Shiraishi and S. Simone and C. Sirignano and G. Sirri and A. Sotnikov and M. Spinetti and L. Stanco and N. Starkov and S. M. Stellacci and M. Stipcevic and P. Strolin and S. Takahashi and M. Tenti and F. Terranova and V. Tioukov and S. Tufanli and S. Vasina and P. Vilain and E. Voevodina and L. Votano and J. L. Vuilleumier and G. Wilquet and C. S. Yoon},
journal= {arXiv preprint arXiv:2211.04636},
year = {2023}
}
Comments
13 pages, 6 figures