Leading order hadronic contribution to g-2 from twisted mass QCD

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We calculate the leading order hadronic contribution to the muon anomalous magnetic moment using twisted mass lattice QCD. The pion masses range from 330 MeV to 650 MeV. We use two lattice spacings, a=0.079 fm and 0.063 fm, to study lattice artifacts. Finite-size effects are studied for two values of the pion mass, and we calculate the disconnected contributions for four ensembles. Particular attention is paid to the dominant contributions of the vector mesons, both phenomenologically and from our lattice calculation.

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Dru B Renner, Xu Feng, Karl Jansen, Marcus Petschlies June 1, 2010.

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We calculate the leading order hadronic contribution to the muon anomalous magnetic moment using twisted mass lattice QCD. The pion masses range from 330 MeV to 650 MeV. We use two lattice spacings, a=0.079 fm and 0.063 fm, to study lattice artifacts. Finite-size effects are studied for two values of the pion mass, and we calculate the disconnected contributions for four ensembles. Particular attention is paid to the dominant contributions of the vector mesons, both phenomenologically and from our lattice calculation.

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155

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  • Journal Name: Proceedings of Science; Journal Volume: LATTICE2010; Conference: Lattice 2010, Villasimius, Sardinia, Italy, 14-19 Jun 2010.

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  • Report No.: JLAB-THY-10-1286
  • Report No.: DOE/OR/23177-1366
  • Report No.: arXiv:1011.4231
  • Grant Number: AC05-06OR23177
  • Office of Scientific & Technical Information Report Number: 1022610
  • Archival Resource Key: ark:/67531/metadc838034

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  • June 1, 2010

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  • May 19, 2016, 3:16 p.m.

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  • Aug. 3, 2016, 6:36 p.m.

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Dru B Renner, Xu Feng, Karl Jansen, Marcus Petschlies. Leading order hadronic contribution to g-2 from twisted mass QCD, article, June 1, 2010; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc838034/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.