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HIGH ENERGY PHYSICS SEMINAR TODAY<br class="">
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Monday February 29, 2016<br class="">
ACC 211<br class="">
4:15pm<br class="">
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Speaker: Chris Marshall (University of Rochester)
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Title:<b class=""> </b><b class="">Kaon production by neutrinos at MINERvA </b>
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Abstract: Charged kaon production by atmospheric neutrinos is a background in searches for proton decay to K^{+} ¯v. Supersymmetric Grand Unified Theories predict p —> K^{+} ¯v with lifetimes of order 10^{34} years, above the current experimental limit of 5.9
x 10^{33} years. The next generation of large underground detectors, DUNE and Hyper-K, should observe neutrino-induced events, and need a reliable cross section model to accurately predict the background rate. The MINERvA neutrino-nucleus cross section experiment
uses a fine-grained solid scintillator detector with 3 ns timing resolution, which is capable of identifying K^{+} decay-at-rest events using both position and timing information. I will present new measurements of cross sections for charged- and neutral-current
kaon production by muon neutrinos, as well as the first experimental evidence of coherent K^{+} production by neutrinos.</div>
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