@article{3155437, title = "Improved Measurement of Muon Antineutrino Disappearance in MINOS", author = "Adamson, P. and Ayres, D. S. and Backhouse, C. and Barr, G. and Bishai, and M. and Blake, A. and Bock, G. J. and Boehnlein, D. J. and Bogert, D. and and Cao, S. V. and Childress, S. and Coelho, J. A. B. and Corwin, L. and and Cronin-Hennessy, D. and Danko, I. Z. and de Jong, J. K. and Devenish, N. and E. and Diwan, M. V. and Escobar, C. O. and Evans, J. J. and Falk, E. and and Feldman, G. J. and Frohne, M. V. and Gallagher, H. R. and Gomes, R. A. and and Goodman, M. C. and Gouffon, P. and Graf, N. and Gran, R. and and Grzelak, K. and Habig, A. and Hartnell, J. and Hatcher, R. and Himmel, and A. and Holin, A. and Huang, X. and Hylen, J. and Irwin, G. M. and Isvan, and Z. and Jaffe, D. E. and James, C. and Jensen, D. and Kafka, T. and and Kasahara, S. M. S. and Koizumi, G. and Kopp, S. and Kordosky, M. and and Kreymer, A. and Lang, K. and Ling, J. and Litchfield, P. J. and and Loiacono, L. and Lucas, P. and Mann, W. A. and Marshak, M. L. and and Mathis, M. and Mayer, N. and Mehdiyev, R. and Meier, J. R. and Messier, and M. D. and Michael, D. G. and Miller, W. H. and Mishra, S. R. and and Mitchell, J. and Moore, C. D. and Mualem, L. and Mufson, S. and Musser, and J. and Naples, D. and Nelson, J. K. and Newman, H. B. and Nichol, R. J. and and Nowak, J. A. and Oliver, W. P. and Orchanian, M. and Pahlka, R. B. and and Paley, J. and Patterson, R. B. and Pawloski, G. and Phan-Budd, S. and and Plunkett, R. K. and Qiu, X. and Radovic, A. and Ratchford, J. and and Rebel, B. and Rosenfeld, C. and Rubin, H. A. and Sanchez, M. C. and and Schneps, J. and Schreckenberger, A. and Schreiner, P. and Sharma, R. and and Sousa, A. and Strait, M. and Tagg, N. and Talaga, R. L. and Thomas, J. and and Thomson, M. A. and Tinti, G. and Toner, R. and Torretta, D. and and Tzanakos, G. and Urheim, J. and Vahle, P. and Viren, B. and Walding, J. and J. and Weber, A. and Webb, R. C. and White, C. and Whitehead, L. and and Wojcicki, S. G. and Zwaska, R. and MINOS Collaboration", journal = "Physical Review and Physical Review Letters Index", year = "2012", volume = "108", number = "19", publisher = "AMER PHYSICAL SOC", issn = "0094-0003", doi = "10.1103/PhysRevLett.108.191801", abstract = "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).]." }