Tensions between the appearance data of T2K and NO nu A

Autor(es)

Nizam, Mohammad ^{[1, 2]} ; Bharti, Suman ^[3] ; Prakash, Suprabh ^[4] ; Rahaman, Ushak ^{[3, 5, 6]} ; Sankar, S. Uma ^[3]

Afiliação do(s) autor(es)

^[1] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra - India

^[2] Homi Bhabha Natl Inst, Mumbai 400094, Maharashtra - India

^[3] Indian Inst Technol, Dept Phys, Mumbai 400076, Maharashtra - India

^[4] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

^[5] Univ Johannesburg, CAPP, POB 524, ZA-2006 Auckland Pk - South Africa

^[6] Univ Johannesburg, Dept Phys, POB 524, ZA-2006 Auckland Pk - South Africa

• Tipo de documento: Artigo Científico
• Fonte: MODERN PHYSICS LETTERS A; v. 35, n. 6 FEB 28 2020.
• Citações Web of Science: 0

Resumo

The long baseline neutrino experiments, T2K and NO nu A, have taken significant amount of data in each of the four channels: (a) nu(mu), disappearance, (b) (nu) over bar (mu), disappearance, (c) nu(e) appearance, and (d)( nu) over bar (e) appearance. There is a mild tension between the disappearance and the appearance data sets of T2K. A more serious tension exists between the nu(e) appearance data of T2K and the nu(e)/(nu) over bar (e) appearance data of NO nu A. This tension is significant enough that T2K rules out the best-fit point of NO nu A at 95% confidence level, whereas, NO nu A rules out T2K best-fit point at 90% confidence level. We explain the reason why these tensions arise. We also do a combined fit of T2K and NO nu A data and comment on the results of this fit. (AU)

• Processo FAPESP: 14/19164-6 - Desafios para o século XXI em física e astrofísica de neutrinos
• Beneficiário: Orlando Luis Goulart Peres
• Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais
• Processo FAPESP: 17/02361-1 - À procura de nova física em experimentos de neutrinos
• Beneficiário: Suprabh Prakash
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado