Decay-angular-distribution correlated CP violation in heavy hadron cascade decays
arxiv(2024)
Abstract
CP violation in baryon decay processes is still undiscovered to date. We
present a general analysis of the decay-angular-distributions and the
corresponding CP asymmetries in cascade decays of the type ℍ→
R(→ ab) c, where ℍ is a heavy hadron that decays through weak
interactions ℍ→ R c, and the resonance R decays strongly via
R→ ab. Based on the analysis, we propose to search for CP violation in
the decay-angular-distributions in the cascade decay processes 𝔹→ℬ M, with ℬ or M subsequently decaying through strong
interactions, where 𝔹 is the mother baryon, ℬ or M
are the daughter baryon and meson, respectively, and M has to be
spin-nonzero. We also present some typical decay channels in which the search
for such kinds of CP asymmetries can be performed.
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