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Spin and Resonant States in QCD

 

作者: M. Kirchbach,  

 

期刊: AIP Conference Proceedings  (AIP Available online 1903)
卷期: Volume 670, issue 1  

页码: 36-44

 

ISSN:0094-243X

 

年代: 1903

 

DOI:10.1063/1.1594316

 

出版商: AIP

 

数据来源: AIP

 

摘要:

I make the case that the nucleon excitations do not exist as isolated higher spin states but are fully absorbed byK2, K2 ⊗ 12, 0 ⊕ 0, 12multiplets taking their origin from the rotational and vibrational excitations of an underlying quark‐diquark string. The &Dgr;(1232) spectrum presents itself as the exact replica (up to &Dgr;(1600)) of the nucleon spectrum with theK‐ clusters being shifted upward by about 200 MeV. QCD inspired arguments support legitimacy of the quark‐diquark string. The aboveKmultiplets can be mapped (up to form‐factors) onto Lorentz group representation spaces of the type &psgr;&mgr;1&cellip;&mgr;K, thus guaranteeing covariant description of resonant states. The quantum &psgr;&mgr;1&cellip;&mgr;Kstates are of multiple spins at rest, and of undetermined spins elsewhere. © 2003 American Institute of Physics

 

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