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PCAC and coherent pion production by low energy neutrinos

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arxiv 0812.2653 v2 pith:4MB7NXSU submitted 2008-12-15 hep-ph

PCAC and coherent pion production by low energy neutrinos

classification hep-ph
keywords productionpcacpioncoherentenergyscatteringagreeanalysis
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Coherent pi^+ and pi^0 production in low energy neutrino reactions is discussed in the framework of the partially conserved axial vector current theory (PCAC). The role of lepton mass effects in suppressing the pi^+ production is emphasized. Instead of using models of pion nucleus scattering, the available data on pion Carbon scattering are implemented for an analysis of the PCAC prediction. Our results agree well with the published upper limits for pi^+ production but are much below the recent MiniBooNE result for pi^0 production.

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Cited by 1 Pith paper

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  1. Comparisons of triple-differential cross sections for quasielastic-like $\nu_\mu$-hydrocarbon interactions using $\langle E_\nu\rangle \sim$ 3~GeV versus $\sim$ 6~GeV beams in MINERvA

    hep-ex 2026-05 unverdicted novelty 5.0

    MINERvA compares quasielastic-like cross sections at two neutrino beam energies and finds discrepancies pointing to overestimated final state interactions for protons and pions.