Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-03-30
J.Exp.Theor.Phys. 93 (2001) 435-448; Zh.Eksp.Teor.Fiz. 120 (2001) 499-514
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages, 1 figure; abstract of paper is available in Cosy News, 9, pp. 5-7, October 2000
Scientific paper
10.1134/1.1410588
The characteristic predictions of chiral soliton models - the Skyrme model and its extentions - are discussed. The chiral soliton models prediction of dibaryon states with masses below NN-pion threshold is in qualitative agreement with recent evidence for the existence of narrow dibaryons in reactions of inelastic proton scattering on deuterons and two-photon radiation in proton-proton scattering. The connection between isovector magnetic momentum operator and mixed tensor of inertia of multiskyrmion, as well as between isoscalar magnetic momentum and orbital tensor of inertia valid for skyrmions with any B-numbers allows to estimate the electromagnetic decay widths of some states of interest. Another kind of predictions are multibaryons with nontrivial flavour - strangeness, charm or bottom, which can be found, in particular, in high energy heavy ions collisions. It is shown that the large B multiskyrmions given by rational map ansaetze can be described reasonably well within the domain wall approximation, or as spherical bubble with energy and baryon number density concentrated at its boundary. A simple formula is obtained describing the masses of known RM multiskyrmions with good accuracy.
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