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arXiv 0708.3692nucl-thnucl-ex
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中能pp和np散射中N ~*(1440)和N ~*(1535)共振的影响

Influence of the N*(1440) and N*(1535) Resonances in Intermediate Energy pp and np Scattering

A. Pricking, Ch. Elster, A. Gardestig, F. Hinterberger, the EDDA collaboration

摘要:

最近测量的质子-质子弹性散射观测值高达3.0 GeV的动机,我们调查这些数据的描述模型的核子-核子(NN)的相互作用有效的π介子生产阈值以上。除了包括众所周知的Delta共振,我们将两个低的N* 共振,N*(1440)和N*(1535),并研究其对pp和np观测的影响,为弹丸实验室动能高达1.5 GeV。

英文摘要:

Motivated by a recent measurement of proton-proton elastic scattering observables up to 3.0 GeV, we investigate the description of those data within models of the nucleon-nucleon (NN) interaction valid above the pion production threshold. In addition to including the well known Delta resonance we incorporate two low-lying N* resonances, the N*(1440) and the N*(1535), and study their influence on pp and np observables for projectile laboratory kinetic energies up to 1.5 GeV.

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