Recent results on hadron spectroscopy from BES

Klaus G&ouml;tzen (on behalf of the BES-Ⅲ collaboration)

doi:10.1088/1674-1137/34/6/005

Chinese Physics C> 2010, Vol. 34> Issue(6) : 638-643 DOI: 10.1088/1674-1137/34/6/005

Recent results on hadron spectroscopy from BES

Klaus Götzen (on behalf of the BES-Ⅲ collaboration)

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Abstract：
The BES-Ⅲ Detector is a very versatile multipurpose device located at the Institute of High Energy Physics (IHEP) in Beijing, China. Concerning the physics program it ties stringently up to the past BES and BES-Ⅱ experiments. Since start of the data taking in the middle of 2008 the accumulated dataset of 200・
10⁶ J/ψ events and 100・10⁶ ψ′ events already exceeds the world data on these resonances. In addition to studies of the charmonium systems the data offers great opportunity for investigations in the light hadron sector. In detail it will be reported about the confirmation of the enhancement in pp invariant mass in radiative J/ψ decays, the search for decays Y(2175)→ K^*0K^*0, observation of a charged κ^± in K^±π⁰ and observation of a new excited baryon N^*(2065) decaying to pπ⁰ and charged conjugate. The first result is based on data taken by BES-Ⅱ and BES-Ⅲ, the latter three on data collected by BES-Ⅱ only.

References

[1]

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Klaus Götzen (on behalf of the BES-Ⅲ collaboration). Recent results on hadron spectroscopy from BES[J]. Chinese Physics C, 2010, 34(6): 638-643. doi: 10.1088/1674-1137/34/6/005

Klaus Götzen (on behalf of the BES-Ⅲ collaboration). Recent results on hadron spectroscopy from BES[J]. Chinese Physics C, 2010, 34(6): 638-643. doi: 10.1088/1674-1137/34/6/005 shu

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Received: 2010-01-25
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沈阳化工大学材料科学与工程学院沈阳 110142

Recent results on hadron spectroscopy from BES

Received Date: 2010-01-25

Accepted Date: 1900-01-01

Available Online: 2010-06-05

Abstract:

The BES-Ⅲ Detector is a very versatile multipurpose device located at the Institute of High Energy Physics (IHEP) in Beijing, China. Concerning the physics program it ties stringently up to the past BES and BES-Ⅱ experiments. Since start of the data taking in the middle of 2008 the accumulated dataset of 200・
10⁶ J/ψ events and 100・10⁶ ψ′ events already exceeds the world data on these resonances. In addition to studies of the charmonium systems the data offers great opportunity for investigations in the light hadron sector. In detail it will be reported about the confirmation of the enhancement in pp invariant mass in radiative J/ψ decays, the search for decays Y(2175)→ K^*0K^*0, observation of a charged κ^± in K^±π⁰ and observation of a new excited baryon N^*(2065) decaying to pπ⁰ and charged conjugate. The first result is based on data taken by BES-Ⅱ and BES-Ⅲ, the latter three on data collected by BES-Ⅱ only.

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Recent results on hadron spectroscopy from BES

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