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T-Odd Triple-Product Correlations in Hadronic b Decays

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arxiv hep-ph/0005018 v1 pith:HIOJVATX submitted 2000-05-02 hep-ph

W. Bensalem , D. London This is my paper · ORCID
classification hep-ph
keywords decaytriple-productasymmetriesasymmetrydecayslambdamesonscorrelations
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We study T-violating triple-product asymmetries in the quark-level decay b -> s u u(bar) within the standard model (SM). We find that only two types of triple products are non-negligible. The asymmetry in p_u . [s_u x s_u(bar)] or p_u(bar) . [s_u x s_u(bar)] can be as large as about 5%. It can be probed in B -> V_1 V_2 decays, where V_1 and V_2 are vector mesons. And the asymmetry in s_b . [p_u x p_s] can be in the range 1%--3%. One can search for this signal in the decay \Lambda_b -> \Lambda \pi^+ \pi^- or in B^* -> X_s X, where X_s and X then each decay into two mesons. All other triple-product asymmetries are expected to be small within the SM. This gives us new methods of searching for new physics.

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Cited by 3 Pith papers

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  1. Full analysis of CP violation induced by the decay angular correlations in four-body cascade decays of heavy hadrons

    hep-ph 2025-04 conditional novelty 5.0 of 10

    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.

  2. CP violation observables in baryon decays

    hep-ph 2024-11 accept novelty 5.0 of 10

    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.

  3. Contributions of interference and non-interference components to CP asymmetries in heavy meson decays

    hep-ph 2026-05 unverdicted novelty 4.0 of 10

    A Legendre-polynomial-zero partitioning scheme with sign weighting defines new observables A±^asy,l and ACP^asy,l that isolate interference versus non-interference terms in CP asymmetries for heavy meson decays.

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