Study of resonant processes for multi-pion production in $\bar p +p\to\ell ^++\ell^- +n_ππ$ annihilation

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dc.creatorKuraev, E. A.
dc.creatorAdamuscin, C.
dc.creatorTomasi-Gustafsson, E.
dc.creatorMaas, F.
dc.date2007-04-10
dc.date.accessioned2026-07-07T10:35:29Z
dc.date.available2026-07-07T10:35:29Z
dc.descriptionIn frame of a phenomenological approach based on Compton-like Feynman amplitudes, we study multi-pion production in antiproton nucleon collisions. The main interest of this reaction is related to the possibility to study the properties of the presumable $\bar N N$ atom and of its resonances. For the case of formation of a scalar or pseudoscalar resonant state, with $I^G(J^{P})=1^-(0^{\pm}),~0^+(0^-)$ numerical results are obtained. The differential cross section in an experimental set-up where the pions invariant mass is measured, is given with explicit dependence on the lepton pair and pions invariant mass.
dc.description9 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0704.1199
dc.identifierhttp://arxiv.org/abs/0704.1199
dc.identifierPhys.Lett.B649:400-404,2007
dc.identifierdoi:10.1016/j.physletb.2007.04.042
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179762
dc.subjectHigh Energy Physics - Phenomenology
dc.titleStudy of resonant processes for multi-pion production in $\bar p +p\to\ell ^++\ell^- +n_ππ$ annihilation
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