Dibaryons from exceptional collections
We discuss aspects of the dictionary between brane configurations in del Pezzo geometries and dibaryons in the dual superconformal quiver gauge theories. The basis of fractional branes defining the quiver theory at the singularity has a K-theoretic dual exceptional collection of bundles which can be...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 October 2003
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| In: |
Journal of high energy physics
Year: 2003, Heft: 9, Pages: 1-37 |
| ISSN: | 1029-8479 |
| DOI: | 10.1088/1126-6708/2003/09/060 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1088/1126-6708/2003/09/060 Verlag, kostenfrei, Volltext: http://stacks.iop.org/1126-6708/2003/i=09/a=060 
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| Verfasserangaben: | Christopher P. Herzog and Johannes Walcher |
MARC
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| 520 | |a We discuss aspects of the dictionary between brane configurations in del Pezzo geometries and dibaryons in the dual superconformal quiver gauge theories. The basis of fractional branes defining the quiver theory at the singularity has a K-theoretic dual exceptional collection of bundles which can be used to read off the spectrum of dibaryons in the weakly curved dual geometry. Our prescription identifies the R-charge R and all baryonic U(1) charges Q I with divisors in the del Pezzo surface without any Weyl group ambiguity. As one application of the correspondence, we identify the cubic anomaly tr RQ I Q J as an intersection product for dibaryon charges in large- N superconformal gauge theories. Examples can be given for all del Pezzo surfaces using three- and four-block exceptional collections. Markov-type equations enforce consistency among anomaly equations for three-block collections. | ||
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