重子相互作用和双重子
From Baryon Interactions to Dibaryons
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摘要: 本文提出了一个新的夸克势模型──夸克脱定域色屏蔽模型．此模型不用介子交换就给出既有排斥心又有中程吸引的核力，并且定性符合Ｎ－Ｎ散射相移１Ｓ０、３Ｓ１、１Ｐ１和３Ｐ１ａ首次从动力学证明了可能存在两类双重子．一类是像氘核那样的低自旋、弱束缚的双重子，另一类是高自旅、强束缚的六夸克态，ｄ就是一个典型例子，它很可能是一个窄双重子共振态．一个平行的相对论性夸克势模型证实了与上述非相对论势模型有关的双重子态的预言． A new quark potential model, called quark delocalization and color screening model, has been proposed.This model yields both N-N repulsive core and intermediate range attraction without involving the meson exchange and fits the N-N 1S0,3S1,1p1and 3Pls phase shifts qualitatively. It verified dynamically that there might be two kinds of dibaryons.One is the deuteron like low spin, loosely binding two baryon states.The other is the high spin, strong binding six quark states, d. is a typical example and is...Abstract: A new quark potential model, called quark delocalization and color screening model, has been proposed.This model yields both N-N repulsive core and intermediate range attraction without involving the meson exchange and fits the N-N 1S0,3S1,1p1and 3Pls phase shifts qualitatively. It verified dynamically that there might be two kinds of dibaryons.One is the deuteron like low spin, loosely binding two baryon states.The other is the high spin, strong binding six quark states, d. is a typical example and is...
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