The Narrow Theta(1543)--A QCD Dilemma: Tube or Not Tube?
Phys.Lett. B578 (2004) 124-132 We argue that a width of less than MeV of the new Theta resonance is inconsistent with the observed ratio of resonance and background events in the various photon initiated experiments if the latter can be described by K, K*, etc., exchange. An evaluation of the Feynma...
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| Main Authors | , |
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| Format | Journal Article |
| Language | English |
| Published |
17.09.2003
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| Abstract | Phys.Lett. B578 (2004) 124-132 We argue that a width of less than MeV of the new Theta resonance is
inconsistent with the observed ratio of resonance and background events in the
various photon initiated experiments if the latter can be described by K, K*,
etc., exchange. An evaluation of the Feynman diagrams which were believed to be
relevant is presented and supports the general claim in the one case where a
cross section has been given by the experimental group.
More detailed arguments based on the flux tube model explaining the narrow
widths and the apparent conflict with the production rates are presented. We
predict narrow Tetra-quarks at mass ~ O(1-1.2 GeV) which the analysis of LEAR
may have missed. |
|---|---|
| AbstractList | Phys.Lett. B578 (2004) 124-132 We argue that a width of less than MeV of the new Theta resonance is
inconsistent with the observed ratio of resonance and background events in the
various photon initiated experiments if the latter can be described by K, K*,
etc., exchange. An evaluation of the Feynman diagrams which were believed to be
relevant is presented and supports the general claim in the one case where a
cross section has been given by the experimental group.
More detailed arguments based on the flux tube model explaining the narrow
widths and the apparent conflict with the production rates are presented. We
predict narrow Tetra-quarks at mass ~ O(1-1.2 GeV) which the analysis of LEAR
may have missed. |
| Author | Casher, Aharon Nussinov, Shmuel |
| Author_xml | – sequence: 1 givenname: Aharon surname: Casher fullname: Casher, Aharon organization: Tel Aviv University and Univ. of South Carolina – sequence: 2 givenname: Shmuel surname: Nussinov fullname: Nussinov, Shmuel organization: Tel Aviv University and Univ. of South Carolina |
| BackLink | https://doi.org/10.48550/arXiv.hep-ph/0309208$$DView paper in arXiv https://doi.org/10.1016/j.physletb.2003.10.041$$DView published paper (Access to full text may be restricted) |
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| Snippet | Phys.Lett. B578 (2004) 124-132 We argue that a width of less than MeV of the new Theta resonance is
inconsistent with the observed ratio of resonance and... |
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| SubjectTerms | Physics - High Energy Physics - Phenomenology |
| Title | The Narrow Theta(1543)--A QCD Dilemma: Tube or Not Tube? |
| URI | https://arxiv.org/abs/hep-ph/0309208 |
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