T-odd correlations in radiative K_l3^+ decays and chiral perturbation theory

Abstract

The charged kaon decay channel K_l3gamma^+ allows for studies of direct CP violation, possibly due to non-standard mechanisms, with the help of T-odd correlation variables. In order to be able to extract a CP-violating signal from experiment, it is necessary to understand all possible standard model phases that also produce T-odd asymmetries. We complement earlier studies by considering strong interaction phases in hadronic structure functions that appear at higher orders in chiral perturbation theory, and compare our findings to other potential sources of asymmetries.

arXiv comment14 pages, 11 figures; version published in EPJC

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Cited by in corpus (8)

• Beta Decays and Non-Standard Interactions in the LHC Era
• Aspects of radiative K^+_e3 decays
• A T-odd Momentum Correlation in Radiative β-Decay
• Radiative Beta Decay for Studies of CP Violation
• Triple-product asymmetry in the radiative two-pion tau decay
• A study of the $K^{+}\to {\pi }^0{e}^{+}\nu \gamma$ decay
• $K_{l3\gamma }^0$ decays: branching ratios and T-odd momenta correlations
• Tracing Remnants of the Baryon Vector Current Anomaly in Neutron Radiative Beta Decay