Tetraquark mesons in large-N quantum chromodynamics
It is argued that exotic mesons consisting of two quarks and two antiquarks are not ruled out in quantum chromodynamics with a large number N of colors, as generally thought. Tetraquarks of one class are typically long-lived, with decay rates proportional to 1/N.
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| Veröffentlicht in: | Physical review letters 2013-06, Vol.110 (26), p.261601-261601, Article 261601 |
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| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | It is argued that exotic mesons consisting of two quarks and two antiquarks are not ruled out in quantum chromodynamics with a large number N of colors, as generally thought. Tetraquarks of one class are typically long-lived, with decay rates proportional to 1/N. |
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| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.110.261601 |