Studies on $π^+π^-$ phase motion in the $Ψ'\to J/Ψπ^+ π^-$ process

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dc.creatorZhang, Z. X.
dc.creatorSanz-Cillero, J. J.
dc.creatorShen, X. Y.
dc.creatorWu, N.
dc.creatorXiao, L. Y.
dc.creatorZheng, H. Q.
dc.date2008-05-19
dc.date.accessioned2026-07-07T11:50:54Z
dc.date.available2026-07-07T11:50:54Z
dc.descriptionWe propose a measurement on the elastic $ππ$ scattering phase shift difference $δ^0_0-δ^2_0$ through $Ψ'\to J/Ψπ^+ π^-$ process in future high statistics BES-III experiment. The decay amplitude is constructed with seven Lorentz invariant form-factors and is compared with their theoretical estimation. It is found that the phase shift difference can be obtained, based on a Monte Carlo study and it is expected the phase shift in the energy region between 350 MeV to 550 MeV can be measured at future BES-III.
dc.description16 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0805.2780
dc.identifierhttp://arxiv.org/abs/0805.2780
dc.identifierPhys.Rev.D78:076010,2008
dc.identifierdoi:10.1103/PhysRevD.78.076010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203714
dc.subjectHigh Energy Physics - Experiment
dc.titleStudies on $π^+π^-$ phase motion in the $Ψ'\to J/Ψπ^+ π^-$ process
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