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Title: New CP violation in neutrino oscillations
Author: González García, Ma. Concepción
Grossman, Y.
Gusso, A.
Nir, Yosef
Keywords: Teoria de camps (Física)
Partícules (Física nuclear)
Violació càrrega-paritat (Física nuclear)
Field theory (Physics)
Particles (Nuclear physics)
CP violation (Nuclear physics)
Issue Date: 2001
Publisher: The American Physical Society
Abstract: Measurements of CP-violating observables in neutrino oscillation experiments have been studied in the literature as a way to determine the CP-violating phase in the mixing matrix for leptons. Here we show that such observables also probe new neutrino interactions in the production or detection processes. Genuine CP violation and fake CP violation due to matter effects are sensitive to the imaginary and real parts of new couplings. The dependence of the CP asymmetry on the source-detector distance is different from the standard one and, in particular, enhanced at short distances. We estimate that future neutrino factories will be able to probe in this way new interactions that are up to four orders of magnitude weaker than the weak interactions. We discuss the possible implications for models of new physics.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 2001, vol. 64, núm. 9, p. 096006-1-096006-14
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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