Charged Current Neutral Strange Particle Production in Neutrino-neon Collisions in the 15ft Bubble Chamber at the Fermilab Tevatron PDF Download
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Author: Douglas F. DeProspo
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
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Book Description
Author: Douglas F. DeProspo
Publisher:
ISBN:
Category :
Languages : en
Pages : 212
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Neutral strange particle production in charged-current muon-neutrino interactions have been studied in the Fermilab 15-foot neon bubble chamber. Associated production is expected to be the major source of strange particles in charged-current neutrino interactions. sigma-neutral and xi-minus production by neutrinos was observed. The dependence on various leptonic and hadronic variables is investigated. A fit to single and associated production of s, s/anti-s, and c quarks is described based on the number of single and double strange particle production events. Inclusive neutral strange particle decays (V°) production rates as a fraction of all charged-current events are measured and are tabulated. The lambda/K ratio is found to be 0.39 +- 0.04 and the fraction of lambda coming from sigma-neutral is (16 +- 5)%. The single- and double V° production was used to determine the associated s anti-s production rate and single s-quark production rate. 13 refs., 7 figs., 3 tabs. (LEW).
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Category : Dissertations, Academic
Languages : en
Pages : 786
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Author:
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Category :
Languages : en
Pages : 12
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Category : Nuclear physics
Languages : en
Pages : 786
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Author: Mary A. Lauko
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Category :
Languages : en
Pages : 154
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Author:
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Category :
Languages : en
Pages :
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Approximately 2000 ..nu../sub e/ and /bar /nu///sub e/ charged-current interactions with energies ranging up to 200 GeV were observed in a wide band neutrino beam using the Fermilab 15-ft bubble chamber filled with a heavy Ne-H2 mix. The cross-section, kinematic distributions, charged particle multiplicity, strange particle production, and dilepton production for these events are compared to those for samples of ..nu../sub ..mu../ and /bar /nu///sub ..mu../ charged-current events obtained during the same experiment. No evidence for a violation of ..nu../sub ..mu../−..nu../sub e/ universality is observed. The universality of charged leptons has a strong experimental foundation. However, the universality of neutrinos is not as well established. We report on a detailed study of ..nu../sub ..mu../−..nu../sub e/ universality, including comparisons of cross sections and many properties, such as kinematic distributions and the strange particle production rates. These results represent an order of magnitude improvement in statistics over previous bubble chamber studies of neutrino universality. Counter experiments have measured cross sections only. 12 refs., 9 figs.
Author: Jules Robert Benada
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Category : Hadrons
Languages : en
Pages : 280
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![Strange Particle Production in Neutrino Interactions. [Rate Lower Limits]. PDF](https://books.google.com/books/content/images/frontcover/HZmLAQAACAAJ?fife=w80-h100)
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Languages : en
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Ten strange particles were observed in a total of 1086 charged current neutrino interactions obtained in the analysis of 482,000 pictures taken in the Brookhaven Cryogenic 7' Bubble Chamber filled with hydrogen and deuterium. Details of these events are presented together with rates for associated strange particle and .delta. S = +-.delta. Q production in neutrino interactions.
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Languages : en
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We report recent results from an analysis of 100,000 pictures from the Fermilab 15 ft. bubble chamber filled with heavy neon and exposed to the double horn focused, wideband .nu./sub .mu./ beam. We have found 164 dilepton (.mu.−e) events with 33 vees, in good agreement with the GIM model of charm production. We have also observed the production of the charmed D° meson, followed by the decay D° .-->. K°.pi.pi.−, at a rate of (0.7 +- 0.2)% of all charged current events. We have carried out searches for charm changing neutral current processes and for heavy lepton production, both with negative results; the upper limits obtained in these searches are given.
