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Neutrino induced coherent pion production
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Scully, D. I. (2013) Neutrino induced coherent pion production. PhD thesis, University of Warwick.
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WRAP_THESIS_Scully_2013.pdf - Submitted Version Download (6Mb) | Preview |
Official URL: http://webcat.warwick.ac.uk/record=b2697289~S1
Abstract
Neutrino-induced coherent pion production is an important channel for the
study of neutrino-nucleus interactions. It is both a dangerous background
for νe oscillation experiments, and a critical component required for precise
understanding of neutrino-nucleus pion production in general.
The body of experimental evidence for coherent pion production at high
neutrino energies is reviewed. This data is described well by the Rein-Sehgal
model, which is described and studied. In light of recent low energy limits
set below the Rein-Sehgal model cross-section an alternative low energy
model, the Alvarez-Ruso model, was implemented in the neutrino interaction
simulation GENIE. The results of this simulation are compared with those
from the Rein-Sehgal model, and briefly with those from other models.
Finally, a search for νμ-induced charged-current (CC) coherent pion production
on 12C was conducted at a mean neutrino energy of 0.86 GeV, using data
from the T2K experiment's off-axis near detector. A 3.0 σ excess of events
was found above the background prediction, constituting the first experimental
evidence of CC coherent pion production below 7 GeV. Preliminary attempts
to interpret this excess in the context of the Rein-Sehgal and Alvarez-Ruso
models found cross-sections consistent with the limits set by SciBooNE.
Item Type: | Thesis (PhD) |
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Subjects: | Q Science > QC Physics |
Library of Congress Subject Headings (LCSH): | Pion production, Neutrinos, Neutrino interactions |
Official Date: | September 2013 |
Institution: | University of Warwick |
Theses Department: | Department of Physics |
Thesis Type: | PhD |
Publication Status: | Unpublished |
Supervisor(s)/Advisor: | [Not provided]. |
Extent: | 182 leaves : charts. |
Language: | eng |
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