Light Hadron Spectrum from Quenched Lattice QCD. Results from the CP-PACS.
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- Yoshié Tomoteru
- Institute of Physics and Center for Computational Physics<BR> University of Tsukuba, Tsukuba 305-8577, Japan
書誌事項
- タイトル別名
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- --- Results from the CP-PACS ---
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説明
Deriving the light hadron spectrum from first principles of QCD has been a fundamental issue in elementary particle physics since the mid-1970s, when QCD was established. With this goal in mind, we have carried out large-scale simulations of lattice QCD on the CP-PACS computer. In this article, we present results for the light hadron spectrum derived in the quenched approximation to lattice QCD. We find that although the global structure of the observed spectrum is reproduced, the quenched spectrum systematically deviates from experiment when examined with an accuracy at better than a 10% level. Results for light quark masses are also reported. Another simulation of full QCD done recently (also on the CP-PACS computer) shows indications that the discrepancy observed in quenched QCD is significantly reduced by the introduction of two flavors of light dynamical quarks.
収録刊行物
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- Progress of Theoretical Physics
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Progress of Theoretical Physics 105 (1), 37-75, 2001
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679134866304
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- NII論文ID
- 110001196944
- 210000110678
- 130004540047
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- NII書誌ID
- AA00791455
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- BIBCODE
- 2001PThPh.105...37Y
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- ISSN
- 13474081
- 0033068X
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- NDL書誌ID
- 5654563
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可