Compared analysis of time-like hyperon form factors

Abstract

Data on hyperon form factors recently obtained from annihilation reactions are compared each other, and to proton and neutron form factors, in terms of two kinematical variables: the transferred momentum square, $q^2$, and the modulus $P$ of the relative momentum between the outgoing baryons. They are critically discussed in terms of possible correlated structures. The present status of the time-like form factor data for baryons is described and suggestions are given on the reactions and the kinematical range where data are desirable in order to clarify the arisen questions.

20 pages, 10 figures

References in corpus (7)

• Measurement of the proton form factor by studying $e^{+}{e}^{-}\to p\bar{p}$
• Nucleon Electromagnetic Form Factors in the Timelike Region
• Unexpected features of e+e-->ppbar and e+e-->lambda-lambdabar cross sections near threshold
• Periodic interference structures in the time-like proton form factor
• Hyperon Form Factors & Diquark Correlations
• New fit of time-like proton electromagnetic form factors from $e^{+}{e}^{-}$ colliders
• The fourth dimension of the nucleon structure: spacetime analysis of the timelike electromagnetic proton form factors

Cited by in corpus (4)

• Production and decay of polarized hyperon-antihyperon pairs
• Electromagnetic $|G_E/G_M|$ ratios of hyperons at large timelike $q^2$
• Dispersion-theoretical analysis of the electromagnetic form factors of the $\Lambda$ hyperon
• Understanding oscillating features of the timelike nucleon electromagnetic form factors within the extending vector meson dominance model