Measurement of inclusive double-differential νμ charged-current cross section with improved acceptance in the T2K off-axis near detector

Abstract

We report a measurement of the flux-integrated cross section for inclusive muon neutrino chargedcurrent interactions on carbon. The double-differential measurements are given as a function of the muon momentum and angle. Relative to our previous publication on this topic, these results have an increased angular acceptance and higher statistics. The data sample presented here corresponds to 5.7 × 10 20 protons on target. The total flux-integrated cross section is measured to be ð6.950 AE 0.662Þ × 10 −39 cm 2 nucleon −1 and is consistent with our simulation.

First combined measurement of the muon neutrino and antineutrino charged-current cross section without pions in the final state at T2K

“…III has been used as the prior of the fitting algorithm. This choice does not introduce model dependencies as extensively demonstrated in previous analyses [17,65]. The stability of the results has been confirmed by using alternative models in the fitting framework.…”

“…An unregularized binned likelihood fit with control sample to constrain the background is performed as in Refs. [15,17,65]. This analysis method guarantees a negligible dependence on the signal model used in the simulation for the correction of detector effects, provided that a too coarse binning is not used.…”

“…The acceptance has been increased using all the ND280 sub-detectors and the time of flight (ToF) of the particles between different subdetectors which gives information about the direction of the track, i.e., if it is forward or backward with respect to the beam direction, following the same strategy described in Ref. [65].…”

First Measurement of Inclusive Muon Neutrino Charged Current Differential Cross Sections on Argon at Eν∼0.8 GeV with the MicroBooNE Detector

“…This is the first test of neutrino event generators against double-differential neutrino scattering data on argon. As is also seen in comparisons to neutrino data on carbon [33,34], high χ 2 values between data and predictions are observed taking into account the full covariance matrix with off-diagonal elements (not displayed in Fig. 2).…”

Simultaneous measurement of the muon neutrino charged-current cross section on oxygen and carbon without pions in the final state at T2K

“…The analysis is performed using a binned likelihood fit with control samples to constrain the background, similarly to what is done in Ref. [14][15][16]55] in order to extract the selected number of signal events, unfolded from the detector response. This method is chosen as, in its unregularized form, it ensures no dependence on the signal model used in the simulation for the correction of detector smearing effects.…”