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Ng D 《Physical review D: Particles and fields》1994,49(9):4805-4811
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Lebed RF 《Physical review D: Particles and fields》1996,54(7):4463-4473
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R.E. Mott 《Nuclear Physics B》1975,84(1):260-268
We investigate models where the SU (4) × SU (4) symmetry breaking Hamiltonian, SB, belongs to the (15, 15) and representations, and show how they are equivalent to models of SU (3) × SU (3) breaking where SB belongs to a mixture of different representations. The results for the ππ scattering lengths in the (15, 15) model are outside the experimental limits, but the model yields solutions with a wide range of values for the scattering lengths within the experimental bounds. 相似文献
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