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Testing the Weisskopf-Wigner approximation by using neutral-meson-antimeson correlated states

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Title Testing the Weisskopf-Wigner approximation by using neutral-meson-antimeson correlated states
 
Creator DASS, GV
GRIMUS, W
 
Subject cp violation
decay
time
evolution
system
behavior
 
Description We phenomenologically decompose the Weisskopf-Wigner approximation, as applied to the neutral flavoured meson (M-0) complexes, into three pieces and propose tests for these pieces. Our tests hold for general decay amplitudes and M-0-(M) over bar (0) mixing parameters. We concentrate on C-odd M-0(M) over bar (0) states and stress the importance of such tests in view of the variety of physics extracted from measurements on such complexes. Studying the feasibility of the tests confines one to the K-0(K) over bar (0) system at present. In particular, we show that the time dependence of the correlated decay phi --> K-0(K) over bar (0) --> 2(pi (+)pi (-)) is determined solely by the WWA and provides thus a clean test of it. (C) 2001 .
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-27T00:27:03Z
2011-12-26T12:52:48Z
2011-12-27T05:39:42Z
2011-07-27T00:27:03Z
2011-12-26T12:52:48Z
2011-12-27T05:39:42Z
2001
 
Type Article
 
Identifier PHYSICS LETTERS B, 521(3-4), 267-272
0370-2693
http://dx.doi.org/10.1016/S0370-2693(01)01196-0
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7059
http://hdl.handle.net/10054/7059
 
Language en