2013 Fiscal Year Final Research Report
Study of topological vacuum structure of Quantum Chromodynamics using lattice theory with exact chiral symmetry
| Project/Area Number |
21674002
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| Research Category |
Grant-in-Aid for Young Scientists (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | High Energy Accelerator Research Organization |
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Principal Investigator |
HASHIMOTO Shoji 高エネルギー加速器研究機構, 素粒子原子核研究所, 教授 (90280510)
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| Project Period (FY) |
2009 – 2013
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| Keywords | 格子ゲージ理論 / カイラル対称性 / トポロジー / 量子色力学 |
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| Research Abstract |
Quantum Chromodyamics is the fundamental law to govern the dynamics of quarks. It is strongly non-linear, and numerical methods are required to solve its ground state, which is the vacuum. It is expected that the chiral symmetry of quarks is spontaneously broken in the vacuum and leads to the finite mass of nucleon. This work is to understand this remarkable property using the numerical simulation of lattice gauge theory, the formulation having exact chiral symmetry in particular. We achieved precise calculation of chiral condensate, and performed a study of convergence of the chiral effective theory, an analysis of chiral symmetry breaking within nucleon, a calculation of the decay amplitude of neutral pion through the axial anomaly.
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Research Products
(30 results)
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[Journal Article] Simulation of quantum chromodynamics on the lattice with exactly chiral lattice fermions2012
Author(s)
S. Aoki, T. W. Chiu, G. Cossu, X. Feng, H. Fukaya, S. Hashimoto, T. H. Hsieh, T. Kaneko, H. Matsufuru, J. Noaki, T. Onogi, E. Shintani, K. Takeda
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Journal Title
Progress of Theoretical and Experimental Physics
Pages: 01A106
DOI
Peer Reviewed
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[Journal Article] Pion form factors from two-flavor lattice QCD with exact chiral symmetry2009
Author(s)
S. Aoki, T. W. Chiu, H. Fukaya, S. Hashimoto, T. H. Hsieh, T. Kaneko, H. Matsufuru, J. Noaki, T. Onogi, E. Shintani, N. Yamada
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Journal Title
Physical Review
Volume: D80
Pages: 034508
DOI
Peer Reviewed
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[Presentation] pi0->gamma,gamma2011
Author(s)
S. Hashimoto
Organizer
the Workshop on the Hadronic Light-by-light contribution to the Muon Anomaly (g-2)
Place of Presentation
Institute for Nuclear Theory, University of Washington, Seattle, USA.
Year and Date
20110228-0304
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[Presentation] Lattice QCD2009
Author(s)
S. Hashimoto
Organizer
the XXIX International Symposium "Physics in Collision"
Place of Presentation
Kobe University, Kobe, Japan
Year and Date
20090830-0902
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