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RecentJ/&psgr; Physics Results from BES

 

作者: Zijin Guo,  

 

期刊: AIP Conference Proceedings  (AIP Available online 1902)
卷期: Volume 619, issue 1  

页码: 399-407

 

ISSN:0094-243X

 

年代: 1902

 

DOI:10.1063/1.1482468

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Here we report partial wave analysis results forJ/&psgr; →pp¯&eegr; based on 7.8 × 106BES IJ/&psgr; events, and through which we determined twoN*resonancesN*(1535)S11andN*(1650)S11. BES just finished collecting 5 × 107J/&psgr; events. Some very preliminary results are presented from the 2.4 × 107J/&psgr; events, namely the first new data set and showed the high statistics and good data quality of the newJ/&psgr; data. Using the 2.4 × 107J/&psgr; events, we performed the partial wave analysis inJ/&psgr; → &ggr;K+K−, and the results showed that the 0++component is dominant in the mass region around 1.7 GeV. This conclusion is consistent with other experiments. © 2002 American Institute of Physics

 

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