TITLE

Electric and magnetic form factors of strange baryons

AUTHOR(S)
Van Cauteren, T.; Merten, D.; Corthals, T.; Janssen, S.; Metsch, B.; Petry, H.-R.; Ryckebusch, J.
PUB. DATE
May 2004
SOURCE
European Physical Journal A -- Hadrons & Nuclei;May2004, Vol. 20 Issue 2, p283
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Predictions for the electromagnetic form factors of the A, σ and Ξ hyperons are presented. The numerical calculations are performed within the framework of the fully relativistic constituent-quark model developed by the Bonn group. The computed magnetic moments compare favorably with the experimentally known values. Most magnetic form factors Gm-(Q2) can be parameterized in terms of a dipole with cutoff masses ranging from 0.79 to 1.14 GeV.
ACCESSION #
16708512

 

Related Articles

  • MIXING OF 1/2- OCTETS UNDER SU(3) SYMMETRY. CHEN, YAN; MA, BO-QIANG // Modern Physics Letters A;3/21/2008, Vol. 23 Issue 9, p703 

    We investigate the Jp = 1/2- baryons in the octets based on flavor SU(3) symmetry. Since baryons with same quantum numbers can mix with each other, we consider the mixing between two octets before their mixing with the singlet. Most predicted decay widths are consistent with the experimental...

  • Study of the Decay Ω- → [cap_xi]-Ï€+Ï€- in the HyperCP Experiment. Kamaev, Oleg // AIP Conference Proceedings;2006, Vol. 842 Issue 1, p452 

    The HyperCP (E871) experiment collected ∼ 1010 hyperon decays, including ∼ 107 Omega decays. A signal of 134 events has been observed in the rare decay mode Ω- → [cap_xi]-π+π-. We present preliminary results on the contribution of Ω- → [cap_xi]1530*0 π-...

  • Relativistic mean field approximation to baryons. Diakonov, Dmitri // European Physical Journal A -- Hadrons & Nuclei;Apr2005 Supplement 1, Vol. 24, p3 

    We stress the importance of the spontaneous chiral symmetry breaking for understanding the low-energy structure of baryons. The Mean Field Approximation to baryons is formulated, which solves several outstanding paradoxes of the naive quark models, and which allows to compute parton...

  • Double heavy baryons and dimesons. Rosina, M.; Janc, D. // European Physical Journal A -- Hadrons & Nuclei;Feb2004 Supplement 1, Vol. 19, p43 

    We critically examine the question whether the cc&qmacr;&qmacr; dimension is bound or not.

  • The thermal model and the transition from baryonic to mesonic freeze-out. Cleymans, J.; Oeschler, H.; Redlich, K.; Wheaton, S. // European Physical Journal A -- Hadrons & Nuclei;Jul2006, Vol. 29 Issue 1, p119 

    The present status of the thermal model is reviewed and the recently discovered sharp peak in the K+/Ï€+ ratio is discussed in this framework. It is shown that the rapid change is related to a transition from a baryon-dominated hadronic gas to a meson-dominated one. Further experimental tests...

  • Accuracy of auxiliary field approach for baryons. Narodetskii, I. M.; Semay, C.; Veselov, A. I. // European Physical Journal C -- Particles & Fields;Jun2008, Vol. 55 Issue 3, p403 

    We provide a check of the accuracy of the auxiliary field formalism used to derive the effective Hamiltonian for baryons in the field correlator method. To this end we compare the solutions for the effective Hamiltonian with those obtained from the solution of the spinless Salpeter equation....

  • BARYONIC DECAYS OF CHARMONIUM -- A WINDOW ON INTERNAL BARYON STRUCTURE. Cieplý, A. // International Journal of Modern Physics A: Particles & Fields; G;4/10/2005, Vol. 20 Issue 8/9, p1859 

    The baryonic decays of J/ψ provide a new way to study the internal structure of baryons. A simple diquark model applied to the calculation of the BB decay cross-sections is compared with the ordinary constituent quark model. Various models also give different predictions for the rates...

  • String effects on Fermi–Dirac correlation measurements. Durán Delgado, R.M.; Gustafson, G.; Lönnblad, L. // European Physical Journal C -- Particles & Fields;Sep2007, Vol. 52 Issue 1, p113 

    We investigate some recent measurements of Fermi–Dirac correlations by the LEP collaborations indicating surprisingly small source radii for the production of baryons in e+e- annihilation at the Z0 peak. In hadronization models there is besides the Fermi–Dirac correlation effect...

  • Baryon resonance analysis from two pion electroproduction at Jefferson Laboratory. Ripani, Marco // European Physical Journal A -- Hadrons & Nuclei;Feb2004 Supplement 1, Vol. 19, p71 

    The cross section for the reaction ep → e'pπ+π- was measured in the resonance region for 1.4 < W < 2.1 GeV and 0.5 < Q² <1.5 GeV²/c² using the CIJAS detector at Jefferson Laboratory. The data show resonant. structures not. visible in previous experiments. The comparison...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics