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Testing CP and CPT violation in the neutral kaon system at a. phi. factory

Journal Article · · Physical Review, D (Particles Fields); (United States)
; ; ; ;  [1]
  1. Department of Physics, University of California, Los Angeles, California 90024-1547 (United States)
A general discussion of the gamut of {ital CP}- and {ital CPT}-violation tests that can be performed at a high-luminosity {phi} factory is presented. The results of simulations of the expected time distribution patterns of events in such a {phi} factory are displayed. Furthermore, we demonstrate by means of a global fit to all distributions that, at a {phi} factory with a total integrated luminosity of 10{sup 40} cm{sup {minus}2}, it is possible to determine most of the presently measured {ital CP}- and {ital CPT}-violating parameters in the neutral kaon system to a considerably better (statistical) level than that of current measurements. Present tests of {ital CPT} violation are examined and are contrasted with what could be achieved at such a {phi} factory. While present data could mask a potentially large {ital CPT} violation, measurements at a {phi} factory will be able to disentangle all the {ital CPT}-violating quantities from each other, allowing one to test unambiguously each {ital CPT}-violating parameter to one part in 10{sup 4} and, in particular, to measure the mass difference between the {ital K}{sup 0} and the {ital {bar K}} {sup 0} to one part in 10{sup 18} of their mass.
DOE Contract Number:
AT03-88ER40384
OSTI ID:
7035715
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:11; ISSN PRVDA; ISSN 0556-2821
Country of Publication:
United States
Language:
English