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2p2h effects on the weak pion production cross section

Sep 12, 2014, 6:00 PM
1h 30m
Poster Happy hour with posters Happy hour with posters

Speaker

Prof. Alejandro Mariano (Departamento de Física, Universidad Nacional de La plata, Argentina)

Description

The one pion production process νA →A'lπN results to be an important background to the quasielactic νA →A'lN process used as signal in neutrino oscillation experiments, at the moment of constrain fake events. When only 1p1h final states are considered, the calculated cross section is rough 50% below the experimental data. In this contribution we analyze the effect of adding 2p2h final states.

Summary

The νA →A'lπN cross section is calculated including in the elementary amplitude the ∆(1232 MeV) resonance and nucleon pole, cross and meson exchange nonresonant contributions. Nuclear effects are introduced in the Relativistic Hartree Approximation of QHDI, while pion final state interactions are accounted using the eikonal approach. Both, 1p1h and 2p2h configurations in the final state are considered.

Primary author

Prof. Alejandro Mariano (Departamento de Física, Universidad Nacional de La plata, Argentina)

Presentation materials