CPT and superstring

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The authors discuss the possibility that CPT violation may appear as a consequence of microscopic decoherence due to quantum-gravity effects, that they describe using a density-matrix formalism motivated by their studies of non-critical string theory. The maximum possible order of magnitude of such decohering CPT-violating effects is not far from the sensitivity of present experiments on the neutral kaon system, and they review a simple parametrization for them. The authors also review a recent data analysis carried out together with the CPLEAR collaboration, which bounds any such decohering CPT-violating parameters to be {approx_lt} 10{sup {minus}19} GeV.

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20 p.

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Ellis, J.; Mavromatos, N.E. & Nanopoulos, D.V. July 1, 1996.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Ellis, J. Lawrence Berkeley National Lab., CA (United States)
  • Mavromatos, N.E. Univ. of Oxford (United Kingdom). Dept. of Physics
  • Nanopoulos, D.V. Texas A&M Univ., College Station, TX (United States). Dept. of Physics

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Description

The authors discuss the possibility that CPT violation may appear as a consequence of microscopic decoherence due to quantum-gravity effects, that they describe using a density-matrix formalism motivated by their studies of non-critical string theory. The maximum possible order of magnitude of such decohering CPT-violating effects is not far from the sensitivity of present experiments on the neutral kaon system, and they review a simple parametrization for them. The authors also review a recent data analysis carried out together with the CPLEAR collaboration, which bounds any such decohering CPT-violating parameters to be {approx_lt} 10{sup {minus}19} GeV.

Physical Description

20 p.

Notes

INIS; OSTI as DE97001498

Source

  • Workshop on K physics, Orsay (France), 30 May - 4 Jun 1996

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  • Other: DE97001498
  • Report No.: LBNL--39049
  • Report No.: CONF-9605244--2;CERN-TH--96-189;ACT--10/96;CTP-TAMU--3/96;HEP-PH--9607434
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 503473
  • Archival Resource Key: ark:/67531/metadc689928

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Creation Date

  • July 1, 1996

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 4, 2016, 9:11 p.m.

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Ellis, J.; Mavromatos, N.E. & Nanopoulos, D.V. CPT and superstring, article, July 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc689928/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.