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Effective Field Theory and Time-Reversal Violation in Light Nuclei

Abstract : Thanks to the unnaturally small value of the QCD vacuum angle $\bar\theta < 10^{-10}$, time-reversal ($T$) violation offers a window into physics beyond the Standard Model (SM) of particle physics. We review the effective-field-theory framework that establishes a clean connection between $T$-violating mechanisms, which can be represented by higher-dimensional operators involving SM fields and symmetries, and hadronic interactions, which allow for controlled calculations of low-energy observables involving strong interactions. The chiral properties of $T$-violating mechanisms leads to a pattern that should be identifiable in measurements of the electric dipole moments of the nucleon and light nuclei.
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Contributor : Sophie Heurteau <>
Submitted on : Wednesday, May 27, 2015 - 5:45:27 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:49 PM

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E. Mereghetti, U. van Kolck. Effective Field Theory and Time-Reversal Violation in Light Nuclei. Annual Reviews of Nuclear and Particle Science, 2015, 65, pp.215-243. ⟨10.1146/annurev-nucl-102014-022344⟩. ⟨in2p3-01157224⟩



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