Observation Of The Dynamic Beta Effect At The Cornell Electron-Positron Storage Ring With The Cleo Detector D. Cinabro , M. Chadha , S. Chan , C. O’Grady , J Stephen Miller , J. Urheim , A. J. Weinstein , F. Wurthwein , S. Prell , M. Sivertz , Vivek Sharma , D. M. Asner , A. Eppich , J. Gronberg , C. M. Korte , T. S. Hill , Robert Kenneth Kutschke , D. J. Lange , Richard J S Morrison , Harry Norman Nelson , T. K. Nelson , Chun Qiao , A. Ryd , D A Roberts , Hiroyasu Tajima , Michael S Witherell , B. H. Behrens , W. T. Ford , J. P. Alexander , E W Anderson , T. Banta , M G Billing , K. Bloom , Scott T Chapman , G. Codner , R M Cutler , D. J. Dumas , R. Eshelman , A. D. Foland , P. Gaidarev , M. Giannella , Shlomo Greenwald , Zipi Greenwald , D L Hartill , S W Henderson , P. I. Hopman , J. Hylas , J. Kandaswamy , Nobu Katayama , D. Kematick , R. Kersevan , D. L. Kreinick , Donna Kubik , Yan Li , W Y Liu , R E Meller , N. B. Mistry , D E Peterson , Kern W Ormond , Stuart B Peck , T. Pelaia , D H Rice , Jeremy Rogers , G R Rouse , D. Rubin , D. Sagan , J P Sikora , M. Sloand , Sheldon R Smith , A. Soffer , R. Sproul , J. Swat , C H Tan , S. Temnykh , Christopher Ward , John R Welch , E. Young , P. R. Avery , C. Prescott , R A Briere , D Y J Kim , Hitoshi Yamamoto , T. Bergfeld , J. Ernst , Gary E Gladding , I. Karliner , Mark Palmer , M. Selen , J J Thaler , R. Janicek , S J Richichi , W R Ross , J. Fast , D H Miller , Sarah Roberts , C P Jessop , K. Lingel , M. Artuso , V. Jain , K W Mclean , R. Godang PHYSICAL REVIEW E（1998）
摘要
Using the silicon strip detector of the CLEO experiment operating at the Cornell Electron-Positron Storage Ring (CESR), we have observed that the horizontal size of the luminous region decreases in the presence of the beam-beam interaction from what is expected without the beam-beam interaction. The dependence on the bunch current agrees with the prediction of the dynamic beta effect. This is the first direct observation of the effect.
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关键词
cleo detector, dynamic beta effect, electron-positron
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