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FIZIKA B 9 (2000) 3, 135-146
 
CONSTANT CUTOFF APPROACH TO HYPERON RADIATIVE DECAYS IN CHK
SU(3)-SOLITON MODEL
NILS DALARSSON
Royal Institute of Technology, Stockholm, Sweden
Received 6 April 2000; revised manuscript received 4 July 2000
Accepted 9 October 2000
We give a brief review a quantum stabilization method for the SU(2) s-model,
based on the constant-cutoff limit of the cutoff quantization method developed by
Balakrishna et al., which avoids the difficulties with the usual soliton boundary
conditions pointed out by Iwasaki and Ohyama. We then study the radiative decays of
hyperons in the constant-cutoff approach to the bound state soliton model, developed by
Callan, Hornbostel and Klebanov. The results for the total decay widths and the E2/M1
ratios, corresponding to decouplet-to-octet electromagnetic transitions, are obtained in a
qualitative agreement with the results obtained using constant-cutoff approach to the
SU(3) collective model, the complete Skyrme models and quark-based models.
PACS numbers: 12.40
UDC 539.126
Keywords: quantum stabilization, SU(2) s-model,
constant-cutoff approach, B = 1 sector, stable soliton solution, radiative decays of
hyperons, Callan-Hornbostel-Klebanov model total decay widths, decouplet-to-octet E2/M1
ratios
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