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Title: Measurement of the neutrino mixing angle θ 23 in NOvA

This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of $$6.05\times10^{20}$$ protons-on-target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal mixing ($$\theta_{23} = \pi/4$$). Assuming the normal mass hierarchy, we find $$\Delta m^2 = (2.67 \pm 0.11)\times 10^{-3}$$ eV$^2$ and $$\sin^2 \theta_{23}$$ at the two statistically degenerate values $$0.404^{+0.030}_{-0.022}$$ and $$0.624^{+0.022}_{-0.030}$$, both at the 68% confidence level. Finally, our data disfavor the maximal mixing scenario with 2.6 $$\sigma$$ significance.
Authors:
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Publication Date:
Report Number(s):
FERMILAB-PUB-17-019-ND; arXiv:1701.05891
Journal ID: ISSN 0031-9007; PRLTAO; 1510066; TRN: US1700542
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 15; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
NOvA Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1347127
Alternate Identifier(s):
OSTI ID: 1351054

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., Bolshakova, A., Bromberg, C., Brown, J., Brunetti, G., Buchanan, N., Butkevich, A., Bychkov, V., Campbell, M., Catano-Mur, E., Childress, S., Choudhary, B. C., Chowdhury, B., Coan, T. E., Coelho, J. A. B., Colo, M., Cooper, J., Corwin, L., Cremonesi, L., Cronin-Hennessy, D., Davies, G. S., Davies, J. P., Derwent, P. F., Desai, S., Dharmapalan, R., Ding, P., Djurcic, Z., Dukes, E. C., Duyang, H., Edayath, S., Ehrlich, R., Feldman, G. J., Frank, M. J., Gabrielyan, M., Gallagher, H. R., Germani, S., Ghosh, T., Giri, A., Gomes, R. A., Goodman, M. C., Grichine, V., Group, R., Grover, D., Guo, B., Habig, A., Hartnell, J., Hatcher, R., Hatzikoutelis, A., Heller, K., Himmel, A., Holin, A., Hylen, J., Jediny, F., Judah, M., Kafka, G. K., Kalra, D., Kasahara, S. M. S., Kasetti, S., Keloth, R., Kolupaeva, L., Kotelnikov, S., Kourbanis, I., Kreymer, A., Kumar, A., Kurbanov, S., Lang, K., Lee, W. M., Lin, S., Liu, J., Lokajicek, M., Lozier, J., Luchuk, S., Maan, K., Magill, S., Mann, W. A., Marshak, M. L., Matera, K., Matveev, V., Méndez, D. P., Messier, M. D., Meyer, H., Miao, T., Miller, W. H., Mishra, S. R., Mohanta, R., Moren, A., Mualem, L., Muether, M., Mufson, S., Murphy, R., Musser, J., Nelson, J. K., Nichol, R., Niner, E., Norman, A., Nosek, T., Oksuzian, Y., Olshevskiy, A., Olson, T., Paley, J., Pandey, P., Patterson, R. B., Pawloski, G., Pershey, D., Petrova, O., Petti, R., Phan-Budd, S., Plunkett, R. K., Poling, R., Potukuchi, B., Principato, C., Psihas, F., Radovic, A., Rameika, R. A., Rebel, B., Reed, B., Rocco, D., Rojas, P., Ryabov, V., Sachdev, K., Sail, P., Samoylov, O., Sanchez, M. C., Schroeter, R., Sepulveda-Quiroz, J., Shanahan, P., Sheshukov, A., Singh, J., Singh, J., Singh, P., Singh, V., Smolik, J., Solomey, N., Song, E., Sousa, A., Soustruznik, K., Strait, M., Suter, L., Talaga, R. L., Tamsett, M. C., Tas, P., Thayyullathil, R. B., Thomas, J., Tian, X., Tognini, S. C., Tripathi, J., Tsaris, A., Urheim, J., Vahle, P., Vasel, J., Vinton, L., Vold, A., Vrba, T., Wang, B., Wetstein, M., Whittington, D., Wojcicki, S. G., Wolcott, J., Yadav, N., Yang, S., Zalesak, J., Zamorano, B., and Zwaska, R.. Measurement of the neutrino mixing angle θ23 in NOvA. United States: N. p., Web. doi:10.1103/PhysRevLett.118.151802.
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., Bolshakova, A., Bromberg, C., Brown, J., Brunetti, G., Buchanan, N., Butkevich, A., Bychkov, V., Campbell, M., Catano-Mur, E., Childress, S., Choudhary, B. C., Chowdhury, B., Coan, T. E., Coelho, J. A. B., Colo, M., Cooper, J., Corwin, L., Cremonesi, L., Cronin-Hennessy, D., Davies, G. S., Davies, J. P., Derwent, P. F., Desai, S., Dharmapalan, R., Ding, P., Djurcic, Z., Dukes, E. C., Duyang, H., Edayath, S., Ehrlich, R., Feldman, G. J., Frank, M. J., Gabrielyan, M., Gallagher, H. R., Germani, S., Ghosh, T., Giri, A., Gomes, R. A., Goodman, M. C., Grichine, V., Group, R., Grover, D., Guo, B., Habig, A., Hartnell, J., Hatcher, R., Hatzikoutelis, A., Heller, K., Himmel, A., Holin, A., Hylen, J., Jediny, F., Judah, M., Kafka, G. K., Kalra, D., Kasahara, S. M. S., Kasetti, S., Keloth, R., Kolupaeva, L., Kotelnikov, S., Kourbanis, I., Kreymer, A., Kumar, A., Kurbanov, S., Lang, K., Lee, W. M., Lin, S., Liu, J., Lokajicek, M., Lozier, J., Luchuk, S., Maan, K., Magill, S., Mann, W. A., Marshak, M. L., Matera, K., Matveev, V., Méndez, D. P., Messier, M. D., Meyer, H., Miao, T., Miller, W. H., Mishra, S. R., Mohanta, R., Moren, A., Mualem, L., Muether, M., Mufson, S., Murphy, R., Musser, J., Nelson, J. K., Nichol, R., Niner, E., Norman, A., Nosek, T., Oksuzian, Y., Olshevskiy, A., Olson, T., Paley, J., Pandey, P., Patterson, R. B., Pawloski, G., Pershey, D., Petrova, O., Petti, R., Phan-Budd, S., Plunkett, R. K., Poling, R., Potukuchi, B., Principato, C., Psihas, F., Radovic, A., Rameika, R. A., Rebel, B., Reed, B., Rocco, D., Rojas, P., Ryabov, V., Sachdev, K., Sail, P., Samoylov, O., Sanchez, M. C., Schroeter, R., Sepulveda-Quiroz, J., Shanahan, P., Sheshukov, A., Singh, J., Singh, J., Singh, P., Singh, V., Smolik, J., Solomey, N., Song, E., Sousa, A., Soustruznik, K., Strait, M., Suter, L., Talaga, R. L., Tamsett, M. C., Tas, P., Thayyullathil, R. B., Thomas, J., Tian, X., Tognini, S. C., Tripathi, J., Tsaris, A., Urheim, J., Vahle, P., Vasel, J., Vinton, L., Vold, A., Vrba, T., Wang, B., Wetstein, M., Whittington, D., Wojcicki, S. G., Wolcott, J., Yadav, N., Yang, S., Zalesak, J., Zamorano, B., & Zwaska, R.. Measurement of the neutrino mixing angle θ23 in NOvA. United States. doi:10.1103/PhysRevLett.118.151802.
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., Bolshakova, A., Bromberg, C., Brown, J., Brunetti, G., Buchanan, N., Butkevich, A., Bychkov, V., Campbell, M., Catano-Mur, E., Childress, S., Choudhary, B. C., Chowdhury, B., Coan, T. E., Coelho, J. A. B., Colo, M., Cooper, J., Corwin, L., Cremonesi, L., Cronin-Hennessy, D., Davies, G. S., Davies, J. P., Derwent, P. F., Desai, S., Dharmapalan, R., Ding, P., Djurcic, Z., Dukes, E. C., Duyang, H., Edayath, S., Ehrlich, R., Feldman, G. J., Frank, M. J., Gabrielyan, M., Gallagher, H. R., Germani, S., Ghosh, T., Giri, A., Gomes, R. A., Goodman, M. C., Grichine, V., Group, R., Grover, D., Guo, B., Habig, A., Hartnell, J., Hatcher, R., Hatzikoutelis, A., Heller, K., Himmel, A., Holin, A., Hylen, J., Jediny, F., Judah, M., Kafka, G. K., Kalra, D., Kasahara, S. M. S., Kasetti, S., Keloth, R., Kolupaeva, L., Kotelnikov, S., Kourbanis, I., Kreymer, A., Kumar, A., Kurbanov, S., Lang, K., Lee, W. M., Lin, S., Liu, J., Lokajicek, M., Lozier, J., Luchuk, S., Maan, K., Magill, S., Mann, W. A., Marshak, M. L., Matera, K., Matveev, V., Méndez, D. P., Messier, M. D., Meyer, H., Miao, T., Miller, W. H., Mishra, S. R., Mohanta, R., Moren, A., Mualem, L., Muether, M., Mufson, S., Murphy, R., Musser, J., Nelson, J. K., Nichol, R., Niner, E., Norman, A., Nosek, T., Oksuzian, Y., Olshevskiy, A., Olson, T., Paley, J., Pandey, P., Patterson, R. B., Pawloski, G., Pershey, D., Petrova, O., Petti, R., Phan-Budd, S., Plunkett, R. K., Poling, R., Potukuchi, B., Principato, C., Psihas, F., Radovic, A., Rameika, R. A., Rebel, B., Reed, B., Rocco, D., Rojas, P., Ryabov, V., Sachdev, K., Sail, P., Samoylov, O., Sanchez, M. C., Schroeter, R., Sepulveda-Quiroz, J., Shanahan, P., Sheshukov, A., Singh, J., Singh, J., Singh, P., Singh, V., Smolik, J., Solomey, N., Song, E., Sousa, A., Soustruznik, K., Strait, M., Suter, L., Talaga, R. L., Tamsett, M. C., Tas, P., Thayyullathil, R. B., Thomas, J., Tian, X., Tognini, S. C., Tripathi, J., Tsaris, A., Urheim, J., Vahle, P., Vasel, J., Vinton, L., Vold, A., Vrba, T., Wang, B., Wetstein, M., Whittington, D., Wojcicki, S. G., Wolcott, J., Yadav, N., Yang, S., Zalesak, J., Zamorano, B., and Zwaska, R.. 2017. "Measurement of the neutrino mixing angle θ23 in NOvA". United States. doi:10.1103/PhysRevLett.118.151802. https://www.osti.gov/servlets/purl/1347127.
@article{osti_1347127,
title = {Measurement of the neutrino mixing angle θ23 in NOvA},
author = {Adamson, P. and Aliaga, L. and Ambrose, D. and Anfimov, N. and Antoshkin, A. and Arrieta-Diaz, E. and Augsten, K. and Aurisano, A. and Backhouse, C. and Baird, M. and Bambah, B. A. and Bays, K. and Behera, B. and Bending, S. and Bernstein, R. and Bhatnagar, V. and Bhuyan, B. and Bian, J. and Blackburn, T. and Bolshakova, A. and Bromberg, C. and Brown, J. and Brunetti, G. and Buchanan, N. and Butkevich, A. and Bychkov, V. and Campbell, M. and Catano-Mur, E. and Childress, S. and Choudhary, B. C. and Chowdhury, B. and Coan, T. E. and Coelho, J. A. B. and Colo, M. and Cooper, J. and Corwin, L. and Cremonesi, L. and Cronin-Hennessy, D. and Davies, G. S. and Davies, J. P. and Derwent, P. F. and Desai, S. and Dharmapalan, R. and Ding, P. and Djurcic, Z. and Dukes, E. C. and Duyang, H. and Edayath, S. and Ehrlich, R. and Feldman, G. J. and Frank, M. J. and Gabrielyan, M. and Gallagher, H. R. and Germani, S. and Ghosh, T. and Giri, A. and Gomes, R. A. and Goodman, M. C. and Grichine, V. and Group, R. and Grover, D. and Guo, B. and Habig, A. and Hartnell, J. and Hatcher, R. and Hatzikoutelis, A. and Heller, K. and Himmel, A. and Holin, A. and Hylen, J. and Jediny, F. and Judah, M. and Kafka, G. K. and Kalra, D. and Kasahara, S. M. S. and Kasetti, S. and Keloth, R. and Kolupaeva, L. and Kotelnikov, S. and Kourbanis, I. and Kreymer, A. and Kumar, A. and Kurbanov, S. and Lang, K. and Lee, W. M. and Lin, S. and Liu, J. and Lokajicek, M. and Lozier, J. and Luchuk, S. and Maan, K. and Magill, S. and Mann, W. A. and Marshak, M. L. and Matera, K. and Matveev, V. and Méndez, D. P. and Messier, M. D. and Meyer, H. and Miao, T. and Miller, W. H. and Mishra, S. R. and Mohanta, R. and Moren, A. and Mualem, L. and Muether, M. and Mufson, S. and Murphy, R. and Musser, J. and Nelson, J. K. and Nichol, R. and Niner, E. and Norman, A. and Nosek, T. and Oksuzian, Y. and Olshevskiy, A. and Olson, T. and Paley, J. and Pandey, P. and Patterson, R. B. and Pawloski, G. and Pershey, D. and Petrova, O. and Petti, R. and Phan-Budd, S. and Plunkett, R. K. and Poling, R. and Potukuchi, B. and Principato, C. and Psihas, F. and Radovic, A. and Rameika, R. A. and Rebel, B. and Reed, B. and Rocco, D. and Rojas, P. and Ryabov, V. and Sachdev, K. and Sail, P. and Samoylov, O. and Sanchez, M. C. and Schroeter, R. and Sepulveda-Quiroz, J. and Shanahan, P. and Sheshukov, A. and Singh, J. and Singh, J. and Singh, P. and Singh, V. and Smolik, J. and Solomey, N. and Song, E. and Sousa, A. and Soustruznik, K. and Strait, M. and Suter, L. and Talaga, R. L. and Tamsett, M. C. and Tas, P. and Thayyullathil, R. B. and Thomas, J. and Tian, X. and Tognini, S. C. and Tripathi, J. and Tsaris, A. and Urheim, J. and Vahle, P. and Vasel, J. and Vinton, L. and Vold, A. and Vrba, T. and Wang, B. and Wetstein, M. and Whittington, D. and Wojcicki, S. G. and Wolcott, J. and Yadav, N. and Yang, S. and Zalesak, J. and Zamorano, B. and Zwaska, R.},
abstractNote = {This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of $6.05\times10^{20}$ protons-on-target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal mixing ($\theta_{23} = \pi/4$). Assuming the normal mass hierarchy, we find $\Delta m^2 = (2.67 \pm 0.11)\times 10^{-3}$ eV$^2$ and $\sin^2 \theta_{23}$ at the two statistically degenerate values $0.404^{+0.030}_{-0.022}$ and $0.624^{+0.022}_{-0.030}$, both at the 68% confidence level. Finally, our data disfavor the maximal mixing scenario with 2.6 $\sigma$ significance.},
doi = {10.1103/PhysRevLett.118.151802},
journal = {Physical Review Letters},
number = 15,
volume = 118,
place = {United States},
year = {2017},
month = {4}
}