Details

Autor(en) / Beteiligte

• Acero, M A
• Antoshkin, A
• Asquith, L
• Backhouse, C
• Balashov, N
• Baldi, P
• Bambah, B A
• Bays, K
• Bernstein, R
• Bhatnagar, V
• Bhuyan, B
• Booth, A C
• Bowles, R
• Buchanan, N
• Butkevich, A
• Calvez, S
• Catano-Mur, E
• Choudhary, B C
• Coan, T E
• Colo, M
• Davies, G S
• Derwent, P F
• Ding, P
• Djurcic, Z
• Dolce, M
• Dukes, E C
• Duyang, H
• Ehrlich, R
• Ewart, E
• Filip, P
• Gallagher, H R
• Gao, F
• Giri, A
• Gomes, R A
• Goodman, M C
• Grichine, V
• Groh, M
• Guo, B
• Hartnell, J
• Hatcher, R
• Heller, K
• Hewes, J
• Holin, A
• Jargowsky, B
• Jarosz, J
• Kakorin, I
• Kalitkina, A
• Keloth, R
• Kullenberg, Ch
• Kubu, M
• Lasorak, P
• Lesmeister, J
• Lister, A
• Magill, S
• Mann, W A
• Marshak, M L
• Martinez-Casales, M
• Méndez, D P
• Mishra, S R
• Mislivec, A
• Mohanta, R
• Mu, W
• Mulder, K
• Nelson, J K
• Nichol, R
• Niner, E
• Norman, A
• Olson, T
• Paley, J
• Pawloski, G
• Petrova, O
• Petti, R
• Phan, D D
• Plunkett, R K
• Raj, V
• Rajaoalisoa, M
• Ramson, B
• Rojas, P
• Ryabov, V
• Samoylov, O
• Singh, P
• Smolik, J
• Sousa, A
• Strait, M
• Sutton, A
• Swain, S
• Sweeney, C
• Thayyullathil, R B
• Thomas, J
• Tiras, E
• Tsaris, A
• Vahle, P
• Vasel, J
• Wallbank, M
• Warburton, T K
• Wetstein, M
• Whittington, D
• Wickremasinghe, D A
• Wu, W
• Yallappa Dombara, A

Titel

Search for Active-Sterile Antineutrino Mixing Using Neutral-Current Interactions with the NOvA Experiment

Ist Teil von

• Physical review letters, 2021-11, Vol.127 (20), p.201801-201801, Article 201801

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• This Letter reports results from the first long-baseline search for sterile antineutrinos mixing in an accelerator-based antineutrino-dominated beam. The rate of neutral-current interactions in the two NOvA detectors, at distances of 1 and 810 km from the beam source, is analyzed using an exposure of 12.51×10^{20} protons-on-target from the NuMI beam at Fermilab running in antineutrino mode. A total of 121 of neutral-current candidates are observed at the far detector, compared to a prediction of 122±11(stat.)±15(syst.) assuming mixing only between three active flavors. No evidence for ν[over ¯]_{μ}→ν[over ¯]_{s} oscillation is observed. Interpreting this result within a 3+1 model, constraints are placed on the mixing angles θ_{24}<25° and θ_{34}<32° at the 90% C.L. for 0.05  eV^{2}≤Δm_{41}^{2}≤0.5  eV^{2}, the range of mass splittings that produces no significant oscillations at the near detector. These are the first 3+1 confidence limits set using long-baseline accelerator antineutrinos.