The Search for the Rare Decay of K--> [pi]+[pi]0v−v
Author : Chi Fai Ng
Publisher :
Page : 384 pages
File Size : 10,62 MB
Release : 2000
Category : Kaons
ISBN :
Author : Chi Fai Ng
Publisher :
Page : 384 pages
File Size : 10,62 MB
Release : 2000
Category : Kaons
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Author : Daniel S Akerib
Publisher :
Page : 254 pages
File Size : 24,10 MB
Release : 1991
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Author : Ilektra-Athanasia Christidi
Publisher :
Page : 378 pages
File Size : 40,35 MB
Release : 2006
Category : Kaons
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Author : David Graham Phillips
Publisher :
Page : 374 pages
File Size : 34,61 MB
Release : 2009
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Author : David Edward Smith
Publisher :
Page : 364 pages
File Size : 41,58 MB
Release : 2006
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Author : J.-M. Poutissou
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Page : 5 pages
File Size : 20,6 MB
Release : 1990
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Page : pages
File Size : 37,37 MB
Release : 2001
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Recent results from the first phase of the E787 experiment and an update on the current status are presented. From the first phase the limit on the K[sup+][r-arrow][pi][sup+][nu][ovr[nu]] branching ratio is BR(K[sup+][r-arrow][pi][sup+][nu][ovr[nu]])
Author : Douglas Alan Roberts
Publisher :
Page : 440 pages
File Size : 34,32 MB
Release : 1994
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Author : Douglas Burt Clarke
Publisher :
Page : 216 pages
File Size : 33,37 MB
Release : 1972
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Page : 4 pages
File Size : 40,91 MB
Release : 2007
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The KTeV E799 experiment has conducted a search for the rare decay K{sub L} 2![pi]°°[gamma] via the topology K{sub L} 2![pi]°[pi]°{sub D}[gamma] (where [pi]°{sub D} 2![gamma]ee−). Due to Bose statistics of the [pi]° pair and the real nature of the photon, the K{sub L} 2![pi]°[pi]°[gamma] decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p4). Therefore, this mode probes chiral perturbation theory at O(p6). In this paper we report a determination of an upper limit of 2.43 x 10−7 (90% CL) for K{sub L} 2![pi]°[pi]°[gamma]. This is approximately a factor of 20 lower than previous results.