Search for active-sterile neutrino mixing using neutral-current interactions in NOvA

P. Adamson; L. Aliaga; D. Ambrose; N. Anfimov; A. Antoshkin; E. Arrieta-Diaz; K. Augsten; A. Aurisano; C. Backhouse; M. Baird; B. A. Bambah; K. Bays; B. Behera; S. Bending; R. Bernstein; V. Bhatnagar; B. Bhuyan; J. Bian; T. Blackburn; A. Bolshakova; C. Bromberg; J. Brown; G. Brunetti; N. Buchanan; A. Butkevich; V. Bychkov; M. Campbell; E. Catano-Mur; S. Childress; B. C. Choudhary; B. Chowdhury; T. E. Coan; J. A.B. Coelho; M. Colo; J. Cooper; L. Corwin; L. Cremonesi; D. Cronin-Hennessy; G. S. Davies; J. P. Davies; P. F. Derwent; R. Dharmapalan; P. Ding; Z. Djurcic; A. Habig; K. Heller; M. L. Marshak; G. Pawloski; R. Poling; M. Strait; (The NOvA Collaboration)

doi:10.1103/PhysRevD.96.072006

Search for active-sterile neutrino mixing using neutral-current interactions in NOvA

P. Adamson, L. Aliaga, D. Ambrose, N. Anfimov, A. Antoshkin, E. Arrieta-Diaz, K. Augsten, A. Aurisano, C. Backhouse, M. Baird, B. A. Bambah, K. Bays, B. Behera, S. Bending, R. Bernstein, V. Bhatnagar, B. Bhuyan, J. Bian, T. Blackburn, A. BolshakovaC. Bromberg, J. Brown, G. Brunetti, N. Buchanan, A. Butkevich, V. Bychkov, M. Campbell, E. Catano-Mur, S. Childress, B. C. Choudhary, B. Chowdhury, T. E. Coan, J. A.B. Coelho, M. Colo, J. Cooper, L. Corwin, L. Cremonesi, D. Cronin-Hennessy, G. S. Davies, J. P. Davies, P. F. Derwent, R. Dharmapalan, P. Ding, Z. Djurcic, A. Habig, K. Heller, M. L. Marshak, G. Pawloski, R. Poling, M. Strait, (The NOvA Collaboration)

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Abstract

We report results from the first search for sterile neutrinos mixing with active neutrinos through a reduction in the rate of neutral-current interactions over a baseline of 810 km between the NOvA detectors. Analyzing a 14-kton detector equivalent exposure of 6.05×1020 protons-on-target in the NuMI beam at Fermilab, we observe 95 neutral-current candidates at the Far Detector compared with 83.5±9.7(stat)±9.4(syst) events predicted assuming mixing only occurs between active neutrino species. No evidence for νμ→νs transitions is found. Interpreting these results within a 3+1 model, we place constraints on the mixing angles θ24<20.8° and θ34<31.2° at the 90% C.L. for 0.05 eV2≤Δm412≤0.5 eV2, the range of mass splittings that produce no significant oscillations over the Near Detector baseline.

Original language	English (US)
Article number	072006
Journal	Physical Review D
Volume	96
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.96.072006
State	Published - Oct 30 2017

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© 2017 American Physical Society.

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Adamson, P., Aliaga, L., Ambrose, D., Anfimov, N., Antoshkin, A., Arrieta-Diaz, E., Augsten, K., Aurisano, A., Backhouse, C., Baird, M., Bambah, B. A., Bays, K., Behera, B., Bending, S., Bernstein, R., Bhatnagar, V., Bhuyan, B., Bian, J., Blackburn, T., ... (The NOvA Collaboration) (2017). Search for active-sterile neutrino mixing using neutral-current interactions in NOvA. Physical Review D, 96(7), Article 072006. https://doi.org/10.1103/PhysRevD.96.072006

Adamson, P, Aliaga, L, Ambrose, D, Anfimov, N, Antoshkin, A, Arrieta-Diaz, E, Augsten, K, Aurisano, A, Backhouse, C, Baird, M, Bambah, BA, Bays, K, Behera, B, Bending, S, Bernstein, R, Bhatnagar, V, Bhuyan, B, Bian, J, Blackburn, T, Bolshakova, A, Bromberg, C, Brown, J, Brunetti, G, Buchanan, N, Butkevich, A, Bychkov, V, Campbell, M, Catano-Mur, E, Childress, S, Choudhary, BC, Chowdhury, B, Coan, TE, Coelho, JAB, Colo, M, Cooper, J, Corwin, L, Cremonesi, L, Cronin-Hennessy, D, Davies, GS, Davies, JP, Derwent, PF, Dharmapalan, R, Ding, P, Djurcic, Z, Habig, A , Heller, K , Marshak, ML , Pawloski, G, Poling, R, Strait, M & (The NOvA Collaboration) 2017, 'Search for active-sterile neutrino mixing using neutral-current interactions in NOvA', Physical Review D, vol. 96, no. 7, 072006. https://doi.org/10.1103/PhysRevD.96.072006

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title = "Search for active-sterile neutrino mixing using neutral-current interactions in NOvA",

abstract = "We report results from the first search for sterile neutrinos mixing with active neutrinos through a reduction in the rate of neutral-current interactions over a baseline of 810 km between the NOvA detectors. Analyzing a 14-kton detector equivalent exposure of 6.05×1020 protons-on-target in the NuMI beam at Fermilab, we observe 95 neutral-current candidates at the Far Detector compared with 83.5±9.7(stat)±9.4(syst) events predicted assuming mixing only occurs between active neutrino species. No evidence for νμ→νs transitions is found. Interpreting these results within a 3+1 model, we place constraints on the mixing angles θ24<20.8° and θ34<31.2° at the 90% C.L. for 0.05 eV2≤Δm412≤0.5 eV2, the range of mass splittings that produce no significant oscillations over the Near Detector baseline.",

author = "P. Adamson and L. Aliaga and D. Ambrose and N. Anfimov and A. Antoshkin and E. Arrieta-Diaz and K. Augsten and A. Aurisano and C. Backhouse and M. Baird and Bambah, {B. A.} and K. Bays and B. Behera and S. Bending and R. Bernstein and V. Bhatnagar and B. Bhuyan and J. Bian and T. Blackburn and A. Bolshakova and C. Bromberg and J. Brown and G. Brunetti and N. Buchanan and A. Butkevich and V. Bychkov and M. Campbell and E. Catano-Mur and S. Childress and Choudhary, {B. C.} and B. Chowdhury and Coan, {T. E.} and Coelho, {J. A.B.} and M. Colo and J. Cooper and L. Corwin and L. Cremonesi and D. Cronin-Hennessy and Davies, {G. S.} and Davies, {J. P.} and Derwent, {P. F.} and R. Dharmapalan and P. Ding and Z. Djurcic and A. Habig and K. Heller and Marshak, {M. L.} and G. Pawloski and R. Poling and M. Strait and {(The NOvA Collaboration)}",

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AU - Adamson, P.

AU - Aliaga, L.

AU - Ambrose, D.

AU - Anfimov, N.

AU - Antoshkin, A.

AU - Arrieta-Diaz, E.

AU - Augsten, K.

AU - Aurisano, A.

AU - Backhouse, C.

AU - Baird, M.

AU - Bambah, B. A.

AU - Bays, K.

AU - Behera, B.

AU - Bending, S.

AU - Bernstein, R.

AU - Bhatnagar, V.

AU - Bhuyan, B.

AU - Bian, J.

AU - Blackburn, T.

AU - Bolshakova, A.

AU - Bromberg, C.

AU - Brown, J.

AU - Brunetti, G.

AU - Buchanan, N.

AU - Butkevich, A.

AU - Bychkov, V.

AU - Campbell, M.

AU - Catano-Mur, E.

AU - Childress, S.

AU - Choudhary, B. C.

AU - Chowdhury, B.

AU - Coan, T. E.

AU - Coelho, J. A.B.

AU - Colo, M.

AU - Cooper, J.

AU - Corwin, L.

AU - Cremonesi, L.

AU - Cronin-Hennessy, D.

AU - Davies, G. S.

AU - Davies, J. P.

AU - Derwent, P. F.

AU - Dharmapalan, R.

AU - Ding, P.

AU - Djurcic, Z.

AU - Habig, A.

AU - Heller, K.

AU - Marshak, M. L.

AU - Pawloski, G.

AU - Poling, R.

AU - Strait, M.

AU - (The NOvA Collaboration)

PY - 2017/10/30

Y1 - 2017/10/30

N2 - We report results from the first search for sterile neutrinos mixing with active neutrinos through a reduction in the rate of neutral-current interactions over a baseline of 810 km between the NOvA detectors. Analyzing a 14-kton detector equivalent exposure of 6.05×1020 protons-on-target in the NuMI beam at Fermilab, we observe 95 neutral-current candidates at the Far Detector compared with 83.5±9.7(stat)±9.4(syst) events predicted assuming mixing only occurs between active neutrino species. No evidence for νμ→νs transitions is found. Interpreting these results within a 3+1 model, we place constraints on the mixing angles θ24<20.8° and θ34<31.2° at the 90% C.L. for 0.05 eV2≤Δm412≤0.5 eV2, the range of mass splittings that produce no significant oscillations over the Near Detector baseline.

AB - We report results from the first search for sterile neutrinos mixing with active neutrinos through a reduction in the rate of neutral-current interactions over a baseline of 810 km between the NOvA detectors. Analyzing a 14-kton detector equivalent exposure of 6.05×1020 protons-on-target in the NuMI beam at Fermilab, we observe 95 neutral-current candidates at the Far Detector compared with 83.5±9.7(stat)±9.4(syst) events predicted assuming mixing only occurs between active neutrino species. No evidence for νμ→νs transitions is found. Interpreting these results within a 3+1 model, we place constraints on the mixing angles θ24<20.8° and θ34<31.2° at the 90% C.L. for 0.05 eV2≤Δm412≤0.5 eV2, the range of mass splittings that produce no significant oscillations over the Near Detector baseline.

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DO - 10.1103/PhysRevD.96.072006

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SN - 2470-0010

VL - 96

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - 072006

ER -

Search for active-sterile neutrino mixing using neutral-current interactions in NOvA

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