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Improved Measurement of Muon Antineutrino Disappearance in MINOS

**Autoria(s):** Adamson, P.; Ayres, D. S.; Backhouse, C.; Barr, G.; Bishai, M.; Blake, A.; Bock, G. J.; Boehnlein, D. J.; Bogert, D.; Cao, S. V.; Childress, S.; Coelho, J. A. B.; Corwin, L.; Cronin-Hennessy, D.; Danko, I. Z.; de Jong, J. K.; Devenish, N. E.; Diwan, M. V.; Escobar, C. O.; Evans, J. J.; Falk, E.; Feldman, G. J.; Frohne, M. V.; Gallagher, H. R.; Gomes, R. A.; Goodman, M. C.; Gouffon, Philippe; Graf, N.; Gran, R.; Grzelak, K.; Habig, A.; Hartnell, J.; Hatcher, R.; Himmel, A.; Holin, A.; Huang, X.; Hylen, J.; Irwin, G. M.; Isvan, Z.; Jaffe, D. E.; James, C.; Jensen, D.; Kafka, T.; Kasahara, S. M. S.; Koizumi, G.; Kopp, S.; Kordosky, M.; Kreymer, A.; Lang, K.; Ling, J.; Litchfield, P. J.; Loiacono, L.; Lucas, P.; Mann, W. A.; Marshak, M. L.; Mathis, M.; Mayer, N.; Mehdiyev, R.; Meier, J. R.; Messier, M. D.; Michael, D. G.; Miller, W. H.; Mishra, S. R.; Mitchell, J.; Moore, C. D.; Mualem, L.; Mufson, S.; Musser, J.; Naples, D.; Nelson, J. K.; Newman, H. B.; Nichol, R. J.; Nowak, J. A.; Oliver, W. P.; Orchanian, M.; Pahlka, R. B.; Paley, J.; Patterson, R. B.; Pawloski, G.; Phan-Budd, S.; Plunkett, R. K.; Qiu, X.; Radovic, A.; Ratchford, J.; Rebel, B.; Rosenfeld, C.; Rubin, H. A.; Sanchez, M. C.; Schneps, J.; Schreckenberger, A.; Schreiner, P.; Sharma, R.; Sousa, A.; Strait, M.; Tagg, N.; Talaga, R. L.; Thomas, J.; Thomson, M. A.; Tinti, G.; Toner, R.; Torretta, D.; Tzanakos, G.; Urheim, J.; Vahle, P.; Viren, B.; Walding, J. J.; Weber, A.; Webb, R. C.; White, C.; Whitehead, L.; Wojcicki, S. G.; Zwaska, R.
Contribuinte(s)	UNIVERSIDADE DE SÃO PAULO
Data(s)	21/08/2013 21/08/2013 2012
Resumo	We report an improved measurement of (nu) over bar (mu) disappearance over a distance of 735 km using the MINOS detectors and the Fermilab Main Injector neutrino beam in a (nu) over bar (mu)-enhanced configuration. From a total exposure of 2.95 x 10(20) protons on target, of which 42% have not been previously analyzed, we make the most precise measurement of Delta(m) over bar (2) = [2.62(-0.28)(+0.31)(stat) +/- 0.09(syst)] x 10(-3) eV(2) and constrain the (nu) over bar (mu) mixing angle sin(2)(2 (theta) over bar) > 0.75 (90% C.L.). These values are in agreement with Delta m(2) and sin(2)(2 theta) measured for nu(mu), removing the tension reported in [P. Adamson et al. (MINOS), Phys. Rev. Lett. 107, 021801 (2011).]. U.S. DOE U.S. DOE United Kingdom STFC United Kingdom STFC U.S. NSF U.S. NSF State and University of Minnesota State and University of Minnesota University of Athens, Greece University of Athens, Greece FAPESP FAPESP CNPq CNPq CAPES CAPES Jeffress Memorial Trust Jeffress Memorial Trust
Identificador	PHYSICAL REVIEW LETTERS, COLLEGE PK, v. 108, n. 19, supl. 1, Part 1, pp. 570-572, MAY 11, 2012 0031-9007 http://www.producao.usp.br/handle/BDPI/32651 10.1103/PhysRevLett.108.191801 http://dx.doi.org/10.1103/PhysRevLett.108.191801
Idioma(s)	eng
Publicador	AMER PHYSICAL SOC COLLEGE PK
Relação	PHYSICAL REVIEW LETTERS
Direitos	openAccess Copyright AMER PHYSICAL SOC
Palavras-Chave	#NEUTRINO OSCILLATIONS #CONSERVATION #PHYSICS, MULTIDISCIPLINARY
Tipo	article original article publishedVersion

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