Extrinsic CPT violation in neutrino oscillations in matter

Magnus Jacobson and Tommy Ohlsson
Phys. Rev. D 69, 013003 – Published 15 January 2004
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Abstract

We investigate matter-induced (or extrinsic) CPT violation effects in neutrino oscillations in matter. Especially, we present approximate analytical formulas for the CPT-violating probability differences for three flavor neutrino oscillations in matter with an arbitrary matter density profile. Note that we assume that the CPT invariance theorem holds, which means that the CPT violation effects arise entirely because of the presence of matter. As special cases of matter density profiles, we consider constant and step-function matter density profiles, which are relevant for neutrino oscillation physics in accelerator and reactor long baseline experiments as well as neutrino factories. Finally, the implications of extrinsic CPT violation on neutrino oscillations in matter for several past, present, and future long baseline experiments are estimated.

  • Received 18 September 2003

DOI:https://doi.org/10.1103/PhysRevD.69.013003

©2004 American Physical Society

Authors & Affiliations

Magnus Jacobson* and Tommy Ohlsson

  • Division of Mathematical Physics, Department of Physics, Royal Institute of Technology (KTH) – Stockholm Center for Physics, Astronomy, and Biotechnology (SCFAB), Roslagstullsbacken 11, SE-106 91 Stockholm, Sweden

  • *Electronic address: magnus@theophys.kth.se
  • Electronic address: tommy@theophys.kth.se

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Vol. 69, Iss. 1 — 1 January 2004

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