Constant-cutoff approach to SU(3)-symmetry breaking for strange dibaryon states

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · International Journal of Theoretical Physics

DOI:https://doi.org/10.1007/BF00673075· OSTI ID:136421

Dalarsson, N ^[1]

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1. Royal Inst. of Technology, Stockholm (Sweden)

We suggest a quantum stabilization method for the SU(2) {sigma}-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 investigate the baryon number B = 1 sector of the model and show that after the collective coordinate quantization it admits a stable soliton solution which depends on a single dimensional arbitrary constant. We then show that the approach to SU(3)-symmetry breaking for strange dibaryon states proposed by Kopeliovich et al. can be simplified by omitting the Skyrme stabilizing term and using the constant-cutoff stabilization method. We derive the results for spectra for some strange and nonstrange dibaryon states and obtain the numerical results for the absolute masses of these states, in reasonable agreement with the values obtained, using the complete Skyrme model, by Kopeliovich et al.

• Sponsoring Organization: USDOE
• OSTI ID: 136421
• Journal Information: International Journal of Theoretical Physics, Journal Name: International Journal of Theoretical Physics Journal Issue: 10 Vol. 34; ISSN 0020-7748; ISSN IJTPBM
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DIBARYONS
PARTICLE MODELS
SIGMA MODEL
SKYRME POTENTIAL
SU-3 GROUPS
SYMMETRY BREAKING