Monte Carlo Study of K<SUP>*</SUP>(892) Mass Splitting at BEPCⅡ/BESⅢ

SUN Sheng-Sen; SHEN Xiao-Yan; ZHENG Zhi-Peng; YAN Mu-Lin

Chinese Physics C> 2004, Vol. 28> Issue(5) : 463-468

Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ

Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
The mass splitting of K^*(892)± and K^*(892)0 is studied through J/ψ→K±K^*(892) and J/ψ→K0^*892)0 at EBPCⅡ/BESⅢ. The Geant3-based Monte-Carlo simulation shows that the K^*(892) mass splitting can be precisely measured at BESⅢ. If the mass splitting is 600MeV, then BESⅢ can give ΔM=5.79±0.16±0.13MeV, where the first error is statistical error and the second is systemic error.

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SUN Sheng-Sen, SHEN Xiao-Yan, ZHENG Zhi-Peng and YAN Mu-Lin. Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ[J]. Chinese Physics C, 2004, 28(5): 463-468.

SUN Sheng-Sen, SHEN Xiao-Yan, ZHENG Zhi-Peng and YAN Mu-Lin. Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ[J]. Chinese Physics C, 2004, 28(5): 463-468. shu

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Received: 2003-10-24
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ

Corresponding author: SUN Sheng-Sen,

Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China2 Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 2003-10-24

Accepted Date: 1900-01-01

Available Online: 2004-05-05

Abstract: The mass splitting of K^*(892)± and K^*(892)0 is studied through J/ψ→K±K^*(892) and J/ψ→K0^*892)0 at EBPCⅡ/BESⅢ. The Geant3-based Monte-Carlo simulation shows that the K^*(892) mass splitting can be precisely measured at BESⅢ. If the mass splitting is 600MeV, then BESⅢ can give ΔM=5.79±0.16±0.13MeV, where the first error is statistical error and the second is systemic error.

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Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ

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Monte Carlo Study of K*(892) Mass Splitting at BEPCⅡ/BESⅢ

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Monte Carlo Study of K*(892) Mass Splitting at BEPCⅡ/BESⅢ

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Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ

Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ