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Probing CP violation systematically in differential distributions
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We revisit the topic of triple-product asymmetries which probe CP violation through differential distributions. We construct distributions with well-defined discrete symmetry properties and characterize the asymmetries formed upon them. It is stressed that the simplest asymmetries may not be optimal. We explore systematic generalizations having limited reliance on the process dynamics and phase-space parametrization. They exploit larger fractions of the information contained in differential distributions and may lead to increased sensitivities to CP violation. Our detailed treatment of the case of spinless four-body decays paves the way for further experimental studies.
Forward citations
Cited by 2 Pith papers
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Full analysis of CP violation induced by the decay angular correlations in four-body cascade decays of heavy hadrons
The paper claims that published LHCb angular data for B0 to p pbar K+ pi- contain CP-violating angular asymmetries of about 10 percent, with statistical significances near five sigma.
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CP violation observables in baryon decays
Time-reversal-odd CP observables in baryon decays are proportional to the cosine of strong-phase differences, so they complement sine-suppressed direct CP asymmetries.
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