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Re-examining sin 2 beta and Delta m(d) from evolution of B-d(0) mesons with decoherence

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Title Re-examining sin 2 beta and Delta m(d) from evolution of B-d(0) mesons with decoherence
 
Creator ALOK, AK
BANERJEE, S
SANKAR, SU
 
Subject B-D(0)-(B)OVER-BAR(D)(0) OSCILLATION FREQUENCY
DYNAMICAL SEMIGROUPS
QUANTUM-MECHANICS
B DECAYS
SYSTEMS
SEARCH
B-0
B meson decays
Decoherence
 
Description In the time evolution of neutral meson systems, a perfect quantum coherence is usually assumed. The important quantities of the B-d(0) system, such as sin 2 beta and Delta m(d), are determined under this assumption. However, the meson system interacts with its environment. This interaction can lead to decoherence in the mesons even before they decay. In our formalism this decoherence is modelled by a single parameter lambda. It is desirable to re-examine the procedures of determination of sin 2 beta and Delta m(d) in meson systems with decoherence. We find that the present values of these two quantities are modulated by lambda. Re-analysis of B-d(0) data from B-factories and LHCb can lead to a clean determination of lambda, sin 2 beta and Delta m(d). (C) 2015 The Authors. Published by Elsevier B.V.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-15T04:59:46Z
2016-01-15T04:59:46Z
2015
 
Type Article
 
Identifier PHYSICS LETTERS B, 749,94-97
0370-2693
1873-2445
http://dx.doi.org/10.1016/j.physletb.2015.07.061
http://dspace.library.iitb.ac.in/jspui/handle/100/17819
 
Language en