BORIS Theses

BORIS Theses
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Measurement of Muon Neutrino Charged Current Inclusive Interactions on Argon

Rudolf von Rohr, Christoph (2022). Measurement of Muon Neutrino Charged Current Inclusive Interactions on Argon. (Thesis). Universität Bern, Bern

22rudolfvonrohr_c.pdf - Thesis
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The next generation of neutrino oscillation detectors rely on accurate cross section models in order to achieve their stated goal of measuring the charge conjugation parity (CP) violating phase in the lepton sector, δcp. A key component for model improvements are neutrino interaction measurements. Today's models particularly lack proper understanding of secondary interactions in the target nucleus. For this reason experiments with the same target materials can improve each other's measurements. Since one of the next generation oscillation experiments will use liquid argon time projection chambers (LArTPCs) as their primary detectors, it is evident that neutrino interaction measurements on argon atoms are of special interest. Such measurements can be provided by MicroBooNE which is also a LArTPC based experiment. In this thesis two νµ charged current (CC) inclusive event rate measurements are presented using MicroBooNE data. In order to reduce model dependency and uncertainties, the analysis is presented in a forwardfolded manner. This means that models are forward-folded to represent the measured raw data rates, rather than unfolding the data to match the cross section format provided by model. The results are presented as differential and double-differential muon kinematic distributions. The latter shows tensions between our data and various models of different event generators, with the best performing model provided by NEUT (v5.4.0.1) exhibiting a x2/NDF=12.34. The deviation is greatest at high muon momentum. As an additional result, the total νµ CC inclusive cross section of MicroBooNE is found to be δνµ=(0.933±0.045(stat.)±0.146(syst.))x10-38cm2. This is in agreement with other total cross section measurements using MicroBooNE.

Item Type: Thesis
Dissertation Type: Single
Date of Defense: 1 December 2022
Subjects: 500 Science > 530 Physics
Institute / Center: 08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
Depositing User: Sarah Stalder
Date Deposited: 12 Dec 2022 14:47
Last Modified: 12 Dec 2022 14:47

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