Probing nuclear effects with neutrino-induced charged-current neutral pion production - INSPIRE

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Probing nuclear effects with neutrino-induced charged-current neutral pion production

MINERvA

Collaboration

•

D. Coplowe
(
- Oxford U.
)

Feb 13, 2020

9 pages

Published in:

Phys.Rev.D 102 (2020) 7, 072007,
Phys.Rev.D 110 (2024) 5, 059903 (erratum)

Published: Oct 20, 2020
and
Published: Sep 1, 2024

e-Print:

2002.05812 [hep-ex]

DOI:

10.1103/PhysRevD.102.072007 (publication),
10.1103/PhysRevD.110.059903 (erratum)

Report number:

FERMILAB-PUB-20-077-ND-SCD

Experiments:

FNAL-E-0938

View in:

reference search42 citations

Citations per year

Abstract: (APS)

We study neutrino-induced charged-current (CC) π0 production on carbon nuclei using events with fully imaged final-state proton-π0 systems. Novel use of final-state correlations based on transverse kinematic imbalance enables the first measurements of the struck nucleon’s Fermi motion, of the intranuclear momentum transfer (IMT) dynamics, and of the final-state hadronic momentum configuration in neutrino pion production. Event distributions are presented for (i) the momenta of neutrino-struck neutrons below the Fermi surface, (ii) the direction of missing transverse momentum characterizing the strength of IMT, and (iii) proton-pion momentum imbalance with respect to the lepton scattering plane. The observed Fermi motion and IMT strength are compared to the previous MINERνA measurement of neutrino CC quasielastic-like production. The measured shapes and absolute rates of these distributions, as well as the cross section asymmetries, show tensions with predictions from current neutrino generator models.

Note:

9 pages, 8 figures. v3: PRD-accepted version, with full package of supplemental materials; v4: added 2 missing references; v5: corrected typo in Eq. 8

Particle Physics Experiments
neutrino nucleus: interaction
n: momentum
momentum: difference
pi0: neutrinoproduction
neutrino: current
carbon: nucleus
carbon: target
charged current
pi0: particle identification

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