Pi Pi Scattering and Scalar Mesons in an Effective Chiral Lagrangian(§2. ππ/Kπ Scattering,Possible Existence of the σ-Meson and Its Implications to Hadron Physics)
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- HARADA Masayasu
- Department of Physics, Nagoya University
書誌事項
- タイトル別名
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- ππ Scattering and Scalar Mesons in an Effective Chiral Lagrangian
- パイ パイ Scattering and Scalar Mesons in an Effective Chiral Lagrangian
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説明
In this talk I summarize recently proposed mechanisms to understand ππ scattering to 1 GeV in an effective chiral Lagrangian. The Lagrangian includes higher resonances in addition to pions consistently with the chiral symmetry. Iso-spin zero S-wave partial wave amplitude is reproduced up till about 1.2 GeV by including a pion self-interaction and resonant pole exchanges of ρ, f_0(980) and σ derived from the effective chiral Lagrangian. The best fit shows that σ has a mass of around 560 MeV and a width of about 370 MeV.
収録刊行物
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- 素粒子論研究
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素粒子論研究 102 (5), E46-E51, 2001
素粒子論グループ 素粒子論研究 編集部
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詳細情報 詳細情報について
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- CRID
- 1390282679046242688
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- NII論文ID
- 110006411540
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- NII書誌ID
- AN00135266
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- ISSN
- 24332895
- 03711838
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- NDL書誌ID
- 5686827
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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サーチ
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可