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Time reversal violation from the entangled B°B° system

Bernabeu, J ; Martinez-Vidal, F and Villanueva-Perez, P LU orcid (2012) In Journal of High Energy Physics 2012(8). p.64-64
Abstract
We discuss the concepts and methodology to implement an experiment probing directly Time Reversal (T ) non-invariance, without any experimental connection to CP violation, by the exchange of in and out states. The idea relies on the B 0 B ¯ ¯ ¯ ¯ B¯ 0 entanglement and decay time information available at B factories. The flavor or CP tag of the state of the still living neutral meson by the first decay of its orthogonal partner overcomes the problem of irreversibility for unstable systems, which prevents direct tests of T with incoherent particle states. T violation in the time evolution between the two decays means experimentally a difference between the rates for the time-ordered (ℓ+ X, J/ψK S ) and (J/ψK L, ℓ− X) decays, and three... (More)
We discuss the concepts and methodology to implement an experiment probing directly Time Reversal (T ) non-invariance, without any experimental connection to CP violation, by the exchange of in and out states. The idea relies on the B 0 B ¯ ¯ ¯ ¯ B¯ 0 entanglement and decay time information available at B factories. The flavor or CP tag of the state of the still living neutral meson by the first decay of its orthogonal partner overcomes the problem of irreversibility for unstable systems, which prevents direct tests of T with incoherent particle states. T violation in the time evolution between the two decays means experimentally a difference between the rates for the time-ordered (ℓ+ X, J/ψK S ) and (J/ψK L, ℓ− X) decays, and three other independent asymmetries. The proposed strategy has been applied to simulated data samples of similar size and features to those currently available, from which we estimate the significance of the expected discovery to reach many standard deviations. (Less)
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author
; and
publishing date
type
Contribution to journal
publication status
published
in
Journal of High Energy Physics
volume
2012
issue
8
pages
1 pages
publisher
Springer
external identifiers
  • scopus:84865274551
ISSN
1029-8479
DOI
10.1007/JHEP08%282012%29064
language
English
LU publication?
no
id
458bdfd9-ccb6-4593-831c-775c4432fe9c
date added to LUP
2019-03-29 17:16:26
date last changed
2023-06-11 04:00:33
@article{458bdfd9-ccb6-4593-831c-775c4432fe9c,
  abstract     = {{We discuss the concepts and methodology to implement an experiment probing directly Time Reversal (T ) non-invariance, without any experimental connection to CP violation, by the exchange of in and out states. The idea relies on the B 0 B ¯ ¯ ¯ ¯   B¯  0 entanglement and decay time information available at B factories. The flavor or CP tag of the state of the still living neutral meson by the first decay of its orthogonal partner overcomes the problem of irreversibility for unstable systems, which prevents direct tests of T with incoherent particle states. T violation in the time evolution between the two decays means experimentally a difference between the rates for the time-ordered (ℓ+ X, J/ψK S ) and (J/ψK L, ℓ− X) decays, and three other independent asymmetries. The proposed strategy has been applied to simulated data samples of similar size and features to those currently available, from which we estimate the significance of the expected discovery to reach many standard deviations.}},
  author       = {{Bernabeu, J and Martinez-Vidal, F and Villanueva-Perez, P}},
  issn         = {{1029-8479}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{64--64}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Time reversal violation from the entangled B°B° system}},
  url          = {{http://dx.doi.org/10.1007/JHEP08%282012%29064}},
  doi          = {{10.1007/JHEP08%282012%29064}},
  volume       = {{2012}},
  year         = {{2012}},
}