Quantifying multinucleon effect in Argon using high-pressure TPC

Abstract

Neutrino oscillation experiments use heavy nuclear targets to achieve sufficient interaction rates. Nuclear effects are introduced in the experimental environment by the use of these targets and need to be quantified as they add to the systematic errors. In the low energy region(around 1 GeV) multinucleon events are also present along with Quasi Elastic(QE) and Delta interactions. Therefore if these multinucleon events are not incorporated in the data set properly, we end up with an inaccurate reconstruction of neutrino energy. In our work, we have illustrated the importance of incorporation of multinucleon events for the reduction of systematic errors in physics predictions by DUNE-Near Detector(ND). To achieve this we have presented the event distribution ratio of Ar/C, Ar/Ar, and C/C as a function of squared four-momentum transfer by employing different nuclear models. This analysis recommends the addition of 2p2h or multinucleon events in the event sample and promotes model with Random Phase Approximations(RPA) effect for the analysis of the event sample to overcome or reduce the systematic uncertainties.

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Cited by in corpus (6)

• Theoretical and Experimental Challenges in the Measurement of Neutrino Mass
• Uncertainties in QE and RES events at LBNF due to hadronic production in FSI
• Impact of Nuclear effects in Energy Reconstruction Methods on Sensitivity of Neutrino Oscillation Parameters at NO$\nu$A experiment
• Constraining nuclear effects in Argon using machine learning algorithms
• Influence of cross-sectional uncertainty on sensitivity studies of DUNE and T2HK experiments
• Uncertainties due to hadronic production in final-state interactions at long-baseline neutrino facility