A T-odd observable sensitive to CP violating phases in squark decay

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Published 19 July 2007 • Published under licence by IOP Publishing Ltd
, , Citation Paul Langacker et al JHEP07(2007)055 DOI 10.1088/1126-6708/2007/07/055

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Author affiliations

1 School of Natural Sciences, Institute for Advanced Study, Einstein Drive Princeton, NJ 08540, U.S.A.

2 Department of Physics, Princeton University, Princeton, NJ 08544, U.S.A.

Dates

  1. Received 1 March 2007
  2. Accepted 6 July 2007
  3. Published

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1126-6708/2007/07/055

Abstract

We present a new observable sensitive to a certain combination of CP violating phases in supersymmetric extensions of the Standard Model, viz. a triple product of momenta in the cascade decay of a heavy squark via an on-shell neutralino and off-shell slepton. We investigate the regions of parameter space in which the signal is strong enough to be detectable at the LHC with ∼ (102−103)/sin 2(2Δφ) identified events, where Δφ is a certain combination of phases in the MSSM presented in the text.

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10.1088/1126-6708/2007/07/055