Titlebook: Nstar2007; Proceedings of the 1 Hans-Werner Hammer,Vera Kleber,Hartmut Schmieden Conference proceedings 2008 Springer-Verlag Berlin Heidelb

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Aerate

https://doi.org/10.1007/978-3-540-85144-8Baryon Resonances; Excited Nuclear States; Meson Production; Non-Perturbative QCD; collision; hadron; mole

菊花

雪白

Baryon resonance experiments at COSYning theory and experiment is required. One class of observables are properties of baryon resonances. In this article results are presented, achieved with the experiments ANKE and COSY-TOF concerning excited hyperons, the . .-pentaquark and .*-resonances decaying into strangeness.

鉤針織物

Quark modelslustrated by a discussion of various baryon resonance observables such as static electromagnetic moments —including a novel calculational procedure— form factors and helicity amplitudes, semileptonic decays as well as the systematics of two-body strong decay widths.

哺乳動(dòng)物

Resonances in chiral unitary approachesth a new theoretical perspective on the nature of some of the observed excited hadrons. In this contribution some of the early achievements in the field of baryonic resonances are reviewed, the recent evidence of the two-pole nature of the .(1405) is discussed and results on charmed baryon resonances are presented.

Barrister

Excited baryons in large Nc QCD match it to the one-gluon exchange and the one-boson exchange variants of the quark model. The matching procedure is very general and makes use of the transformation properties of states and operators under ., the permutation group acting on the orbital and spin-flavor degrees of freedom of . quarks.

duplicate

Excited hadrons on the latticeWe review the techniques of lattice QCD calculations for excited hadrons with light quarks and outline the future challenges that are faced in calculations with fully dynamical fermions.

Hectic

鼓掌

Recent BESII resultsRecent experimental results from BESII are reviewed, including hadron spectroscopy from . decays. Searches for excited baryons and study of . and .(2.) decays are reported. The current status of BEPCII/BESII upgrade is reported.