| Autor: |
L. Y. Zhu, G. Niculescu, J. Mousseau, A.H. Krajeski, J. Heaton, N. Tagg, H.B. Zeng, E. Schulte, L. Rakotondravohitra, K.E. Sassin, D.S. Damiani, Sergey A. Kulagin, C. E. Keppel, J. Devan, B.A. Wolthuis, C. M. Castromonte, T. Walton, R. Gran, M.O. Kanter, J.P. Velásquez, D. Zhang, W. A. Mann, R. DeMaat, N. Grossman, V. Paolone, E. Maher, I. Niculescu, G. Maggi, B. Baldin, G. Tzanakos, M. Kordosky, M. Clark, T. Le, R. Bradford, S. Boyd, L. Aliaga, C.D. O'Connor, C. Gingu, C. E. Patrick, D. Naples, G. Zavala, Julián Félix, P. A. Rodrigues, J. Kaisen, B. Osmanov, C. M. Marshall, William Brooks, M.C. Snyder, Gabriel Perdue, J. K. Nelson, J. Hanson, G. A. Fiorentini, B. Eberly, O. Altinok, B. Gobbi, Ha Youn Lee, J. Osta, I.J. Howley, A. Baumbaugh, C. L. McGivern, R.M. Schneider, George Locke, J. L. Palomino, H. Ray, J. Olsen, W. Tan, Ronald Ransome, C. Simon, S. Manly, Jan T. Sobczyk, B. G. Tice, T. Fitzpatrick, J. J. Walding, Anatoly Butkevich, C. J. Solano Salinas, K. S. McFarland, A. Higuera, D. J. Boehnlein, J. Park, H. R. Gallagher, Cody Rude, K. Hurtado, J. Wolcott, D. A. Harris, C.A. George, M. E. Christy, H. S. Budd, A. M. McGowan, G. A. Díaz, Jorge G. Morfin, C. Peña, A. Bodek, L. Fields, H. Chung, Natasha Woodward, D.A. Edmondson, J.A. Gielata, M. Jerkins, J. Chvojka, D. W. Schmitz, I. Z. Danko, A.G. Leister, S. A. Dytman, H. Schellman, E. Draeger, L. Ren, B. P. Ziemer, A. Mislivec, T. Kafka, M. Day, H. da Motta, A. M. Gago, Mousumi Datta, J. Kilmer, F. D. Snider, N. Ochoa, D. A. Martinez Caicedo |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Physical review letters. 111(2) |
| ISSN: |
1079-7114 |
| Popis: |
We have isolated muon anti-neutrino charged-current quasi-elastic interactions occurring in the segmented scintillator tracking region of the MINERvA detector running in the NuMI neutrino beam at Fermilab. We measure the flux-averaged differential cross-section, d{\sigma}/dQ^2, and compare to several theoretical models of quasi-elastic scattering. Good agreement is obtained with a model where the nucleon axial mass, M_A, is set to 0.99 GeV/c^2 but the nucleon vector form factors are modified to account for the observed enhancement, relative to the free nucleon case, of the cross-section for the exchange of transversely polarized photons in electron-nucleus scattering. Our data at higher Q^2 favor this interpretation over an alternative in which the axial mass is increased.
Comment: 8 pages, 5 figures. Added correlation between neutrino and anti-neutrino results in ancillary text files (CSV) |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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