Theory of hadron decay into baryon-antibaryon final state
نویسندگان
چکیده
منابع مشابه
Final - State Phases in B → Baryon - Antibaryon Decays
The recent observation of the decay B 0 → Λc p̄ suggests that related decays may soon be visible at ee colliders. It is shown how these decays can shed light on strong final-state phases and amplitudes involving the spectator quark, both of which are normally expected to be small in B decays. PACS codes: 13.25.Hw, 11.30.Hv, 14.40.Nd, 13.75.Lb
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Though nothing is known for B → ππ,Kπ,KK, we might conjecture that the FSI phases diminish as the initial mass increases. Meanwhile the relative FSI phase is known for the ggg and ”γ” decay amplitudes of the J/ψ decays: 3 ∆δ ≈ 90 and 75 for J/ψ → 00 and 01, respectively. Therefore, if the FSI phases diminish with the increasing initial mass, it should start diminishing somewhere between mJ/ψ an...
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T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao, D. T. Gong, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, S. Z. Li, R. Poling, A. W. Scott, A. Smith, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, J. Ernst, A. H. Mahmood, H. Severini, D. M. Asner, S. A. Dytman, W. Love, S. Mehrabyan, J. A. Mueller, V. Savinov, Z. Li, A. Lopez, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlu...
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We study the handbag contribution to two-photon annihilation into baryon-antibaryon pairs at large energy and momentum transfer. We derive factorization of the process amplitude into a hard γγ → qq subprocess and form factors describing the soft qq → BB transition, assuming that the process is dominated by configurations where the (anti)quark approximately carries the full momentum of the (anti...
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(Submitted to Phys. Rev. 0) *. (a). (b). (cl. cd). tel. (f). (g). (h). (iI. Cj).ABSTRACT A high statistics study of 9 decays into baryon final states has been done uith the MARK II detector at SPEAR. A detailed test of bar-yon-antibaryon decay modes is presented. Substantial resonance formation is observed in multibody decays of the 4' involving baryons. Branching ratios for a large number of d...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2012
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.85.105025