Hyperon-nucleon scattering and hyperon masses in the nuclear medium
classification
⚛️ nucl-th
keywords
hyperonhyperon-nucleonmediumnuclearscatteringanalyzebelowcoefficients
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We analyze low-energy hyperon-nucleon scattering using an effective field theory in next-to-leading order. By fitting experimental cross sections for laboratory hyperon momenta below 200 MeV/c and using information from the hypertriton we determine twelve contact-interaction coefficients. Based on these we discuss the low-density expansion of hyperon mass shifts in the nuclear medium.
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