Testing axial and electromagnetic nucleon form factors in time-like regions in the processes $\bar p + n\to π^- +\ell^-+\ell^+$ and $\bar p+ p\to π^0 +\ell^- + \ell^+$, $\ell=e$, $μ$

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dc.creatorAdamuscin, C.
dc.creatorKuraev, E. A.
dc.creatorTomasi-Gustafsson, E.
dc.creatorMaas, F. E.
dc.date2006-10-31
dc.date.accessioned2026-07-07T10:42:09Z
dc.date.available2026-07-07T10:42:09Z
dc.descriptionIn frame of a phenomenological approach based on Compton-like Feynman amplitudes, we study the annihilation channel in antiproton nucleon collisions with production of a single charged or neutral pion and a lepton-antilepton pair. These reactions allow to access nucleon and axial electromagnetic form factors in time-like region and offer a unique possibility to study the kinematical region below two nucleon threshold. The differential cross section in an experimental set-up where the pion is fully detected is given with explicit dependence on the relevant nucleon form factors. The possibility to measure heavy charged pion in the annihilation channel is also discussed.
dc.description23 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0610429
dc.identifierhttp://arxiv.org/abs/hep-ph/0610429
dc.identifierPhys.Rev.C75:045205,2007
dc.identifierdoi:10.1103/PhysRevC.75.045205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181850
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTesting axial and electromagnetic nucleon form factors in time-like regions in the processes $\bar p + n\to π^- +\ell^-+\ell^+$ and $\bar p+ p\to π^0 +\ell^- + \ell^+$, $\ell=e$, $μ$
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