Exploring Three-Nucleon Forces in Lattice QCD(Nuclear Physics)
スポンサーリンク
概要
- 論文の詳細を見る
Three-nucleon forces (3NF) are investigated from two-flavor lattice QCD simulations. We utilize the Nambu-Bethe-Salpeter (NBS) wave function to determine two-nucleon forces (2NF) and 3NF in the same framework. As a first exploratory study, we extract 3NF in which three nucleons are aligned linearly with an equal spacing. This is the simplest geometrical configuration which reduces the huge computational cost of calculating the NBS wave function. Quantum numbers of the three-nucleon system are chosen to be (I, J^P) = (1/2, 1/2^+) (the triton channel). Lattice QCD simulations are performed using N_f = 2 dynamical clover fermion configurations at the lattice spacing of a = 0.156 fm on a 16^3×32 lattice with a large quark mass corresponding to m_π = 1.13 GeV. We find repulsive 3NF at short distance in the triton channel. Several sources of systematic errors are also discussed.
- 理論物理学刊行会の論文
- 2012-04-25
著者
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INOUE Takashi
Nihon University, College of Bioresource Sciences
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AOKI Sinya
Graduate School of Pure and Applied Sciences, University of Tsukuba
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DOI Takumi
Graduate School of Pure and Applied Sciences, University of Tsukuba
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MURANO Keiko
High Energy Accelerator Research Organization (KEK)
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Aoki Sinya
Graduate School Of Pure And Applied Sciences University Of Tsukuba
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Doi Takumi
Graduate School Of Pure And Applied Sciences University Of Tsukuba
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Ishii Noriyoshi
Department Of Physics University Of Tokyo
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Nemura Hidekatsu
Department Of Physics Tohoku University
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Ishii Noriyoshi
Center For Computational Science Tsukuba University
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Hatsuda Tetsuo
Department Of Physics Kyoto University
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Ikeda Yoichi
Department Of Chemistry Graduate School Of Pure And Applied Sciences University Of Tsukuba
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Sasaki Kenji
Graduate School Of Pure And Applied Sciences University Of Tsukuba
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MURANO Keiko
Theoretical Research Division, Nishina Center, RIKEN
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SASAKI Kenji
Center for Computational Sciences, University of Tsukuba
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Sasaki Kenji
Center For Computational Sciences Univ. Of Tsukuba
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Ikeda Yoichi
Dep. Of Physics Tokyo Inst. Of Technol.
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Murano Keiko
Theoretical Research Division Nishina Center Riken
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Inoue Takashi
Nihon University College Of Bioresource Sciences
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DOI Takumi
Dept. of Physics and Astronomy, Univ. of Kentucky:RIKEN BNL Research Center, Brookhaven National Lab.
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DOI Takumi
Department of Physics, Tokyo Institute of Technology
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HATSUDA Tetsuo
Department of Physics, The University of Tokyo:Institute for the Physics and Mathematics of the Universe (IPMU), The University of Tokyo
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ISHII Noriyoshi
Center for Computational Sciences, University of Tsukuba
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AOKI Sinya
Graduate School of Pure and Applied Sciences, University of Tsukuba:Riken BNL Research Center
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