Neutrino induced weak pion production off the nucleon
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Neutrino induced weak pion production off the nucleon

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Neutrino induced weak pion production off the nucleon

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Hernández Gajate, Eliecer; Nieves Pamplona, Juan Miguel; Valverde Hermosilla, Manuel
Aquest document és un/a article, creat/da en: 2008
We study neutrino-induced one-pion production off the nucleon in and around the Delta resonance region. A part from the Delta-pole mechanism we include background terms required by chiral symmetry. These background terms give size able contributions in all channels. To better reproduce the ANL q(2)-differential cross section data, we make a new fit of the C-5(A)(q(2)) axial nucleon to Delta form factor. The new result C-5(A)(0) = 0.867 +/- 0.075 is some 30% smaller than the commonly accepted value. This correction is compatible with most quark model estimates and a recent lattice calculation.(1)

    Hernández Gajate, Eliecer Nieves Pamplona, Juan Miguel Valverde Hermosilla, Manuel 2008 Neutrino induced weak pion production off the nucleon Modern Physics Letters A 23 27-30 2317 2320
http://dx.doi.org/10.1142/S0217732308029289
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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