S=-1,-2 baryon-baryon interactions in chiral effective field theory

Details S=-1,-2 baryon-baryon interactions in chiral effective field theory S=-1,-2 baryon-baryon interactions in chiral effective field theory

2007-08-06

arxiv.org/abs/0708.0773v1

Physics

Nuclear Physics

Nuclear Theory

3 pages, 2 PostScript figures, talk to appear in the proceedings of the "International Nuclear Physics Conference (INPC2007),

Scientific paper

We have constructed the leading order strangeness S=-1,-2 baryon-baryon potential in a chiral effective field theory approach. The chiral potential consists of one-pseudoscalar-meson exchanges and non-derivative four-baryon contact terms. The potential, derived using SU(3) symmetry constraints, contains six independent low-energy coefficients. We have solved a regularized Lippmann-Schwinger equation and achieved a good description of the available scattering data. Furthermore a correctly bound hypertriton has been obtained.

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