| 日時: |
2007-01-23 11:00 - 12:00 |
| 場所: |
研究本館２階220室 |
| 会議名: |
Nature of QCD-Strings |
| 連絡先: |
津田 |
| 講演者: |
Nayasinganahalli Desikachar Hari Das (総研大葉山) |
| 講演言語: |
英語 |
| アブストラクト: |
High accuracy simulations of the static quark-anti quark potential in lattice QCD have revealed that not only the R^{-1} correction to the confining linear term is universal(the Luscher term), the R^{-3} term is universal too. Furthermore, these terms are the same as what one would one obtain from the spectrum of free bosonic string theories. But the latter are consistent only in 26 dimensions. This apparent puzzle is resolved through the Polchinski-Strominger effective string formalism whereby it is proven that to order R^{-3} the effective string theories give the same result for the spectrum as Nambu-Goto theory.
Refs: N.D. Hari Dass and P. Majumdar, JHEP 0610:020,2006.
N.D. Hari Dass and Peter Matlock: hep-th/0606265, hep-th/0611215, hep-th/0612291.
J.M. Drummond: hep-th/0411017,hep-th/0608109v1.
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