First Measurement of Differential Charged Current Quasielasticlike νμ-Argon Scattering Cross Sections with the MicroBooNE Detector
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Abratenko, P., Alrashed, M., An, R., Anthony, J., Asaadi, J., Ashkenazi, A., ... & Bathe-Peters, L. (2020). First Measurement of Differential Charged Current Quasielastic-like $\nu_\mu $-Argon Scattering Cross Sections with the MicroBooNE Detector. arXiv preprint arXiv:2006.00108. [DOI:10.1103/PhysRevLett.125.201803]
SponsorshipUnited States Department of Energy (DOE); National Science Foundation (NSF); Swiss National Science Foundation (SNSF); Science and Technology Facilities Council (STFC), part of the United Kingdom Research and Innovation; Royal Society of London; Albert Einstein Center for Fundamental Physics, Bern, Switzerland; Azrieli Foundation; Zuckerman STEM Leadership Program; Israel Science Foundation; Visiting Scholars Award Program of the Universities Research Association; DE-AC02-07CH11359
We report on the first measurement of flux-integrated single differential cross sections for chargedcurrent (CC) muon neutrino (νμ) scattering on argon with a muon and a proton in the final state, 40Ar ðνμ; μpÞX. The measurement was carried out using the Booster Neutrino Beam at Fermi National Accelerator Laboratory and the MicroBooNE liquid argon time projection chamber detector with an exposure of 4.59 × 1019 protons on target. Events are selected to enhance the contribution of CC quasielastic (CCQE) interactions. The data are reported in terms of a total cross section as well as single differential cross sections in final state muon and proton kinematics.We measure the integrated per-nucleus CCQE-like cross section (i.e., for interactions leading to a muon, one proton, and no pions above detection threshold) of ð4.93 0.76stat 1.29sysÞ × 10−38 cm2, in good agreement with theoretical calculations. The single differential cross sections are also in overall good agreement with theoretical predictions, except at very forward muon scattering angles that correspond to low-momentum-transfer events.