| DATE: |
2008-04-15 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 2F RM 220 |
| TITLE: |
Quark mass in holographic QCD |
| CONTACT: |
tsuda |
| SPEAKER: |
Prof. Koji Hashimoto (RIKEN) |
| LANGUAGE: |
Japanese |
| ABSTRACT: |
The renowned model of holographic QCD, the Sakai-Sugimoto model, suffers from a famous problem of massless-ness of the quarks. I present a way to introduce the quark mass to the model, and show the pion/quark mass relation and chiral condensate of the model. Interestingly, those masses are generated by worldsheet instantons with additional D-branes which breaks the chiral symmetry explicitly. The idea originates in D-brane version of extended technicolor. |
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