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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/8681

Title: On unitarity relations and their application to meson-antimeson mixing
Authors: DASS, GV
Keywords: invariance
reciprocity
Issue Date: 2003
Publisher: INDIAN ACADEMY SCIENCES
Citation: PRAMANA-JOURNAL OF PHYSICS, 60(3), 557-561
Abstract: In view of the recent observation of nonexponential decay features for a certain quantum-mechanical system, we revisit our earlier study of the small-time behaviour of the meson-antimeson complex wherein the commonly employed Weisskopf-Wigner approximation could be tested, in principle. We find that the experiments for this testing are difficult because of (i) the smallness of the times required for this study, (ii) the high accuracy required for probing the nonleading terms (which distinguish this approximation from the general theory) in the small-time behaviour of the relevant probabilities and (iii) the crude knowledge of the required 'flavour-tagging' procedures, as available at present.
URI: http://dx.doi.org/10.1007/BF02706164
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8681
http://hdl.handle.net/10054/8681
ISSN: 0304-4289
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