Three-body Baryonic anti-B -->Lambda anti-p pi Decays and Such

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dc.creatorChua, Chun-Khiang
dc.creatorHou, Wei-Shu
dc.date2002-11-15
dc.date2003-02-24
dc.date.accessioned2026-07-07T12:26:25Z
dc.date.available2026-07-07T12:26:25Z
dc.descriptionWe study decay rates and spectra of anti-B --> Lambda anti-p pi, Sigma0 anti-p pi, Sigma- anti-n pi, Xi0 anti-Sigma+ pi, Xi- anti-Sigma0 pi and Xi- anti-Lambda pi modes under a factorization approach. The baryon pairs are produced through vector, axial vector, scalar and pseudoscalar operators. Previous predictions, including ours, are an order of magnitude too small compared to experiment. By incorporating QCD counting rules and studying the asymptotic behavior, we find an earlier relation between the pseudoscalar and axial vector form factors to be too restrictive. Instead, the pseudoscalar and scalar form factors are related asymptotically. Following this approach, the measured Lambda anti-p pi rate (~4.0x10^{-6}) and spectrum can be understood, and Lambda should be dominantly left-hand polarized, while we expect Br(Sigma0 anti-p pi)~1.6x10^{-6}. These results and other predictions can be checked soon.
dc.description18 pages, 3 figures; use updated Belle results, add Lambda polarization study
dc.identifierhttps://arxiv.org/abs/hep-ph/0211240
dc.identifierhttp://arxiv.org/abs/hep-ph/0211240
dc.identifierEur.Phys.J.C29:27-35,2003
dc.identifierdoi:10.1140/epjc/s2003-01203-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214873
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThree-body Baryonic anti-B -->Lambda anti-p pi Decays and Such
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