理論セミナー

日時: 2008-04-15 11:00 - 12:00
場所: 研究本館2階220室
会議名: Quark mass in holographic QCD
連絡先: 津田
講演者: 橋本幸二氏  (理化学研究所)
講演言語: 日本語
アブストラクト: 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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