Search for proton decay: status report 1984

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From the various ongoing searches for proton decay (Kolar Goldfields, Nusex, IMB, Kamiokande and HPW experiments) about twenty candidate events for proton decay have so far been reported. Nevertheless, definite evidence for proton decay has not been claimed. There are two main reasons: (1) for any particular candidate event we cannot exclude the possibility that it is due to the interaction of an atmospheric neutrino, and (2) because of the limited resolution of existing detectors each candidate event can usually not be interpreted as a definite candidate decay branch. If we consider only decay branches in which no neutrino is ... continued below

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Pages: 4

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Goldhaber, M. January 1, 1984.

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Description

From the various ongoing searches for proton decay (Kolar Goldfields, Nusex, IMB, Kamiokande and HPW experiments) about twenty candidate events for proton decay have so far been reported. Nevertheless, definite evidence for proton decay has not been claimed. There are two main reasons: (1) for any particular candidate event we cannot exclude the possibility that it is due to the interaction of an atmospheric neutrino, and (2) because of the limited resolution of existing detectors each candidate event can usually not be interpreted as a definite candidate decay branch. If we consider only decay branches in which no neutrino is emitted, the ambiguities in interpretation lead to nearly as many candidate decay branches as there are candidate events. We can already say that for most two-body branches the partial lifetime is > 10/sup 31/y. Since the present detectors, including improvements in progress, as well as new detectors under construction, are sensitive only to partial decay times < 10/sup 33/y, one can hope to decide in the next few years whether or not proton decay takes place within this window of opportunity (10/sup 31/-10/sup 33/y). Results for 204 live days of observation with no neutrino background subtracted in the calculation of lifetime limits are tabulated.

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Pages: 4

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NTIS, PC A02/MF A01.

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  • 4. international conference on physics in collision, Santa Cruz, CA, USA, 22 Aug 1984

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  • Other: DE85008283
  • Report No.: BNL-35979
  • Report No.: CONF-8408141-4
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 5909232
  • Archival Resource Key: ark:/67531/metadc1097851

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1984

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  • Feb. 18, 2018, 3:59 p.m.

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  • April 23, 2018, 7:31 p.m.

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Goldhaber, M. Search for proton decay: status report 1984, article, January 1, 1984; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc1097851/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.