Spin asymmetry in single pion production induced by weak interactions of neutrinos with polarized nucleons
| Autor: | Krzysztof M. Graczyk, Beata E. Kowal |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
010308 nuclear & particles physics Scattering media_common.quotation_subject FOS: Physical sciences Physics::Optics Weak interaction Polarization (waves) 01 natural sciences Asymmetry Nuclear physics High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Pion 0103 physical sciences Condensed Matter::Strongly Correlated Electrons High Energy Physics::Experiment Neutrino 010306 general physics Nucleon Charged current media_common |
| Zdroj: | Physical Review |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.99.053002 |
| Popis: | The single pion production (SPP) in the charged-current neutrino (antineutrino) scattering off the polarized nucleon is discussed. The spin asymmetry is predicted within two approaches. The spin polarizations of the target nucleon that are longitudinal and perpendicular to the neutrino momentum are considered. It is shown, in several examples, that information about the SPP dynamics coming from the spin asymmetry is complementary to information obtained from measurements of spin averaged cross section. Indeed, the spin asymmetry is sensitive to the nonresonance background description of the SPP model. For the normal polarization of the target, the spin asymmetry is given by the interference between the resonance and the nonresonance contributions. 12 pages, 11 figures, some grammar corrections added, two sentences re-edited |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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