منابع مشابه
Cp Violation in Kaon Decays ∗
We review the Standard Model predictions of CP violation in kaon decays. We present an elementary introduction to Chiral Perturbation Theory, four–quark effective hamiltonians and the relation among them. Particular attention is devoted to K → 3π, K → 2πγ and K → πf̄f decays. To appear in International Journal of Modern Physics A ∗ Work supported in part by HCM, EEC–Contract No. CHRX–CT920026 (E...
متن کاملDirect CP Violation in Neutral Kaon Decays
Abstract. The final result is presented of the NA48 experiment, performed at the CERN SPS neutral kaon beams, on the direct CP violation parameter Re(ε′/ε), as measured from the decay rates of neutral kaons into two pions. The data collected in years 1997-2001 yield the evidence for the direct CP violation with Re(ε′/ε) = (14.7± 2.2) × 10. Description of experimental method and systematics, com...
متن کاملCP Violation in Neutral Kaon Decays
A brief review of the theoretical status of CP violation in decays of neutral kaons is presented. We focus on three important topics: e, E ' / E and IC, + TOVC. Invited Talk presented at the Symposium on Flavor-Changing Neutral Currents, Santa Monica, California, February 19-21, 1997
متن کاملObservation of Direct CP Violation in Kaon Decays
A small matter-antimatter asymmetry of the weak force was experimentally established. This CP violation may be related to the small excess of matter from the big bang. The nature of CP violation in the K system has been clarified after 37 years of experimentation: it is due to a small part of the weak interaction (“milliweak interaction”). A non-trivial phase in the weak quark mixing matrix gen...
متن کاملCP Violation in Decays
The origin of CP violation remains a mystery in particle physics. So far, CP -odd signals have been observed only in the kaon systems. To determine the source and nature of CP violation, it is necessary to observe it in several di erent processes. For a number of years theoretical e orts have been made to study it in the weak decays of hyperons belonging to the baryon octet [1{3]. Here, we pres...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 1998
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x98000020