First Observation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>η</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>1405</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>Decays into<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>f</mml:mi><mml:mn>0</mml:mn></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>980</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math>
書誌事項
- 公開日
- 2012-05-03
- 権利情報
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- http://link.aps.org/licenses/aps-default-license
- http://link.aps.org/licenses/aps-default-accepted-manuscript-license
- DOI
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- 10.1103/physrevlett.108.182001
- 公開者
- American Physical Society (APS)
この論文をさがす
説明
The decays J/ψ → γ π+ π- π0 and J/ψ → γ π0 π0 π0 are analyzed using a sample of 225×10(6) J/ψ events collected with the BESIII detector. The decay of η(1405) → f(0)(980)π0 with a large isospin violation is observed for the first time. The width of the f(0)(980) observed in the dipion mass spectra is anomalously narrower than the world average. Decay rates for three-pion decays of the η' are also measured precisely.
収録刊行物
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- Physical Review Letters
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Physical Review Letters 108 (18), 2012-05-03
American Physical Society (APS)
