Strange solitons in a chiral quark-meson model
Tóm tắt
We consider aSU(3) quark soliton model based on chiral invariant quark-meson coupling. We find soliton solutions with nonzero strangeness andB=1 in the model with nontrivial kaonic fields, for values of the coupling constant greater than the phenomenologically acceptable number. Hence they do not correspond to known strange baryons.
Tài liệu tham khảo
T H R Skyrme,Proc. R. Soc. (London) A260, 127 (1961)
I Zahed and G E Brown,Phys. Rep. 142, 1 (1986)
S Kahana, G Ripka and V Soni,Nucl. Phys. A415, 351 (1984)
M C Birse and M K Banerjee,Phys. Rev. D31, 118 (1984)
M K Banerjee, W Browniowski and T D Cohen, inChiral solitons edited by K F Liu (World Scientific, Singapore, 1987)
W Weigel, B Schwesinger and G Holzwarth,Phys. Lett. B168, 321 (1986)
V B Kopeliovich and B E Shtern,JETP. Lett. 45, 203 (1987)
V B Kopeliovich and B E Shtern, NORDITA preprint 89/34 (1989)
J Segar and M S Sri Ram (unpublished)
E Guadagnini,Nucl. Phys. B236, 35 (1984)
M S Sri Ram, H S Mani and R Ramachandran,Phys. Rev. D30, 1141 (1984)
C G Callan and I Klebanov,Nucl. Phys. B262, 365 (1985)
C G Callan, K Hornbostel and I Klebanov,Phys. Lett. B202, 269 (1988)
J A McGovern and M C Birse,Nucl. Phys. A506, 367 (1990a)
J A McGovern and M C Birse,Nucl. Phys. A506, 392 (1990b)
U Ascher, J Christiansen and R D Russel,ACM transactions on mathematical software 7, 209 (1981)
H Weigel, J Schechter, N W Park and G Ulf Meissner, SU-4228-416 Syracuse University Preprint (1989)