Neutral-Current Neutrino Scattering from the Deuteron
| Autor: | T.W. Donnelly, Sabine Jeschonnek, J. W. Van Orden |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Neutral current Nuclear Theory 010308 nuclear & particles physics Scattering Form factor (quantum field theory) FOS: Physical sciences Strangeness 01 natural sciences Standard Model Nuclear Theory (nucl-th) Nuclear physics High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Neutron Neutrino 010306 general physics Nucleon Nuclear Experiment |
| Popis: | Neutral-current neutrino scattering from the deuteron leading to proton-neutron final states is considered using an approach that incorporates relativistic dynamics and consequently provides robust modeling at relatively high energies and momenta. In this work the focus is placed on the fully exclusive reaction where both the proton and neutron in the final state are assumed to be detected. Accordingly, the incident neutrino energy, the neutrino scattering angle and the scattered neutrino's energy can all be reconstructed. It is shown that for specific choices of kinematics the reaction proceeds mainly via scattering from the proton, while for other choices of kinematics it proceeds mainly from the neutron. Specific asymmetries are introduced to focus on these attributes. Measurements in both regions have the potential to yield valuable information on the nucleon's electroweak form factors at momentum transfers up to a (GeV/c)$^2$. In particular, the cross sections are shown to be very sensitive to the isoscalar axial-vector form factor, and sensitive but less so to the magnetic strangeness form factor. Comparisons with other reactions, specifically charge-changing neutrino reactions and both parity-conserving and -violating electron scattering, have the potential to provide new ways to test the Standard Model. 40 pages, 21 figures |
| Databáze: | OpenAIRE |
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