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arXiv · 1206.3344

Intrinsic five-quark Fock states of baryons and meson-nucleon $σ$-terms

Chunsheng An·Bijan Saghai
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Abstract

An extended chiral constituent quark approach, which embodies higher Fock five-quark components in the baryons wave-functions, is employed to study the sea quark content of the octet baryons. We report on the probabilities of $\bar{u}$, $\bar{d}$ and $\bar{s}$ in the nucleon, $Λ$, $Σ$ and $Ξ$ baryons, arising from the intrinsic five-quark states in the baryons wave functions. Based on those probabilities, results for meson-nucleon $σ$-terms; namely $σ_{πN}, σ_{K N}$ and $σ_{ηN}$, are presented.

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Chunsheng An, Bijan Saghai. 2012-06-14. Intrinsic five-quark Fock states of baryons and meson-nucleon $σ$-terms. https://arxiv.org/abs/1206.3344

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