Simultaneous Measurement of ν_{μ} Quasielasticlike Cross Sections on CH, C, H_{2}O, Fe, and Pb as a Function of Muon Kinematics at MINERvA.

J Kleykamp, S Akhter,Z Ahmad Dar, V Ansari,M V Ascencio,M Sajjad Athar,A Bashyal, A Bercellie, M Betancourt,A Bodek, J L Bonilla, A Bravar, H Budd, G Caceres,T Cai,M F Carneiro,G A Díaz,H da Motta, S A Dytman, J Felix, L Fields, A Filkins, R Fine,A M Gago,H Gallagher, S M Gilligan, R Gran, E Granados,D A Harris, S Henry, D Jena,S Jena,A Klustová, M Kordosky, D Last, A Lozano,X-G Lu,E Maher,S Manly,W A Mann, C Mauger, K S McFarland, B Messerly,J Miller, O Moreno,J G Morfín, D Naples,J K Nelson, C Nguyen, A Olivier, V Paolone,G N Perdue,K-J Plows, M A Ramírez, R D Ransome, H Ray, D Ruterbories,H Schellman,C J Solano Salinas, H Su, M Sultana, V S Syrotenko,E Valencia, N H Vaughan, A V Waldron,C Wret,B Yaeggy, L Zazueta

Physical review letters（2023）

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摘要

This Letter presents the first simultaneous measurement of the quasielasticlike neutrino-nucleus cross sections on C, water, Fe, Pb, and scintillator (hydrocarbon or CH) as a function of longitudinal and transverse muon momentum. The ratio of cross sections per nucleon between Pb and CH is always above unity and has a characteristic shape as a function of transverse muon momentum that evolves slowly as a function of longitudinal muon momentum. The ratio is constant versus longitudinal momentum within uncertainties above a longitudinal momentum of 4.5 GeV/c. The cross section ratios to CH for C, water, and Fe remain roughly constant with increasing longitudinal momentum, and the ratios between water or C to CH do not have any significant deviation from unity. Both the overall cross section level and the shape for Pb and Fe as a function of transverse muon momentum are not reproduced by current neutrino event generators. These measurements provide a direct test of nuclear effects in quasielasticlike interactions, which are major contributors to long-baseline neutrino oscillation data samples.

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