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arxiv: 1801.01197 · v3 · submitted 2018-01-03 · ✦ hep-ex

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Measurement of the muon anti-neutrino double-differential cross section for quasi-elastic scattering on hydrocarbon at~E_ν sim 3.5 GeV

C. E. Patrick , L. Aliaga , A. Bashyal , L. Bellantoni , A. Bercellie , M. Betancourt , A. Bodek , A. Bravar
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H. Budd G. F. R. Caceres M. F. Carneiro E. Chavarria H. da Motta S. A. Dytman G. A. Diaz J. Felix L. Fields R. Fine A. M. Gago R. Galindo H. Gallager A. Ghosh R. Gran J. Y. Han D. A. Harris S. Henry K. Hurtado D. Jena J. Kleykamp M. Kordosky T. Le X.-G. Lu E. Maher S. Manly W. A. Mann C. M. Marshall K. S. McFarland A. M. McGowan B. Messerly J. Miller A. Mislivec J. G. Morfin J. Mousseau D. Naples J. K. Nelson A. Norrick G. M. Nowak Nuruzzaman V. Paolone G. N. Perdue E. Peters M. A. Ramirez R. D. Ransome H. Ray L. Ren P. A. Rodrigues D. Ruterbories H. Schellman C. J. Solano Salinas M. Sultana S. Sanchez Falero A. M. Teklu E. Valencia J. Wolcott M. Wospakrik B. Yaeggy D. Zhang (MINERvA Collaboration)
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classification ✦ hep-ex
keywords double-differentialmuonscatteringanti-neutrinocrossmeasurementminervamodel
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We present double-differential measurements of anti-neutrino quasi-elastic scattering in the MINERvA detector. This study improves on a previous single differential measurement by using updated reconstruction algorithms and interaction models, and provides a complete description of observed muon kinematics in the form of a double-differential cross section with respect to muon transverse and longitudinal momentum. We include in our signal definition zero-meson final states arising from multi-nucleon interactions and from resonant pion production followed by pion absorption in the primary nucleus. We find that model agreement is considerably improved by a model tuned to MINERvA inclusive neutrino scattering data that incorporates nuclear effects such as weak nuclear screening and two-particle, two-hole enhancements.

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