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. S. Miller, J. Urheim, A. J. Weinstein, F. Würthwein, S. Prell, M. Sivertz, V. Sharma, D. M. Asner, A. Eppich, J. Gronberg, C. M. Korte, T. S. Hill, R. Kutschke, D. J. Lange, R. J. Morrison, H. N. NelsonT. K. Nelson, C. Qiao, A. Ryd, D. Roberts, H. Tajima, M. S. Witherell, B. H. Behrens, W. T. Ford, J. P. Alexander, E. Anderson, T. Banta, M. Billing, K. Bloom, S. Chapman, G. Codner, R. Cutler, D. J. Dumas, R. Eshelman, A. D. Foland, P. Gaidarev, M. Giannella, S. Greenwald, Z. Greenwald, D. Hartill, S. Henderson, P. I. Hopman, J. Hylas, J. Kandaswamy, N. Katayama, D. Kematick, R. Kersevan, D. L. Kreinick, D. Kubik, Y. Li, W. Liu, R. Meller, N. B. Mistry, D. Peterson, K. Ormond, S. Peck, T. Pelaia, D. Rice, J. Rogers, G. Rouse, D. Rubin, D. Sagan, J. Sikora, M. Sloand, S. Smith, A. Soffer, R. Sproul, J. Swat, C. Tan, S. Temnykh, C. Ward, J. Welch, E. Young, P. R. Avery, C. Prescott, R. A. Briere, D. Y.J. Kim, H. Yamamoto, T. Bergfeld, J. Ernst, G. E. Gladding, I. Karliner, M. Palmer, M. Selen, J. J. Thaler, R. Janicek, S. J. Richichi, W. R. Ross, J. Fast, D. H. Miller, S. E. Roberts, C. P. Jessop, K. Lingel, M. Artuso, V. Jain, K. W. McLean, R. Godang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1193-1196
Number of pages4
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Issue number1
StatePublished - 1998

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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