1,607 research outputs found
Pion correlation from Skyrmion-AntiSkyrmion annihilation
We study two pion correlations from Skyrmion and antiSkyrmion collision,
using the product ansatz and an approximate random grooming method for nucleon
projection. The spatial-isospin coupling inherent in the Skyrme model, along
with empirical averages, leads to correlations not only among pions of like
charges but also among unlike charge types.Comment: uuencoded files of REVTeX and postscript, 18 pages including 2
figures, submitted to Phys.Rev.
Classical and Quantum Coherent State Description of Nucleon-Antinucleon Annihilation at Rest in the Skyrme Model with Omega Mesons
We model the system at rest as a baryon number zero lump in the
Skyrme model including the field. We integrate the classical equations
of motion from the highly non-perturbative annihilation region into the
non-interacting radiation zone. Subsequent coherent state quantization of the
radiation field gives a good description of the pion spectrum from annihilation
at rest.Comment: 15 pages (RevTex), 1 table, 13 figures (postscript files available
upon request from the authors), Univ. of Pennsylvania Preprin
On the relationship of the scaled phase space and Skyrme-coherent state treatments of proton antiproton annihilation at rest
We discuss pion multiplicities and single pion momentum spectra from proton
antiproton annihilation at rest. Both the scaled phase space model and the
Skyrme-coherent state approach describe these observables well. In the coherent
state approach the puzzling size of the scale parameter relating the phase
space integrals for different multiplicities is replaced by a well defined
weight function. The strength of this function is determined by the intensity
of the classical pion field and its spatial extent is of order 1 fm.Comment: 11 pages including 4 figures(postscript
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