Feb 18 – 26, 2021
Europe/Rome timezone

Probing nuclear effects in neutrino CC\1pi^+ interactions with transverse kinematic imbalance measurement in T2K

Feb 19, 2021, 10:20 AM
Room 1 (https://unipd.link/NeuTel-ParallelRoom1)

Room 1


Parallel Contributed Talk Neutrino Masses and Mixings Cross Sections


Ka Ming Tsui (University of Liverpool)


Neutrino interactions with nuclei are the main experimental tool used to study neutrinos in many different contexts, and systematic uncertainties arising from neutrino-nucleus interactions, especially those related to nuclear effects, can be a limiting factor in their energy reconstruction. For the CC1pi interaction, which is dominated by resonant production, physics of the initial state nucleon correlations, self-energy corrections of the force mediator, and the Delta resonance propagation inside the nucleus are not well-modelled. We present the first experimental study of nuclear medium effects in CC1pi+ interaction by measuring the kinematic imbalance between the muon, pion and proton in the plane transverse to the incoming neutrino. The extracted cross-section as a function of the imbalance is sensitive to the nuclear physics model and final state interactions. This new measurement provides unique constraints to characterize the nuclear effects in neutrino interaction modelling.

Collaboration name T2K Collaboration

Primary author

Ka Ming Tsui (University of Liverpool)

Presentation materials