Study of formation in photon-photon collisions

H. Aihara, M. Alston-Garnjost, R. E. Avery, A. Barbaro-Galtieri, A. R. Barker, A. V. Barnes, B. A. Barnett, D. A. Bauer, H. U. Bengtsson, D. L. Bintinger, G. J. Bobbink, T. S. Bolognese, A. D. Bross, C. D. Buchanan, A. Buijs, D. O. Caldwell, A. R. Clark, G. D. Cowan, D. A. Crane, O. I. DahlK. A. Derby, J. J. Eastman, P. H. Eberhard, T. K. Edberg, A. M. Eisner, R. Enomoto, F. C. Erné, T. Fujii, J. W. Gary, W. Gorn, J. M. Hauptman, W. Hofmann, J. E. Huth, J. Hylen, T. Kamae, H. S. Kaye, K. H. Kees, R. W. Kenney, L. T. Kerth, Winston Ko, R. I. Koda, R. R. Kofler, K. K. Kwong, R. L. Lander, W. G J Langeveld, J. G. Layter, F. L. Linde, C. S. Lindsey, S. C. Loken, A. Lu, X. Q. Lu, G. R. Lynch, R. J. Madaras, K. Maeshima, B. D. Magnuson, J. N. Marx, G. E. Masek, L. G. Mathis, J. A J Matthews, S. J. Maxfield, S. O. Melnikoff, E. S. Miller, W. Moses, R. R. McNeil, P. Nemethy, D. R. Nygren, P. J. Oddone, H. P. Paar, D. A. Park, Sung Keun Park, D. E. Pellett, M. Pripstein, M. T. Ronan, R. R. Ross, F. R. Rouse, K. A. Schwitkis, J. C. Sens, G. Shapiro, M. D. Shapiro, B. C. Shen, W. E. Slater, J. R. Smith, J. S. Steinman, M. L. Stevenson, D. H. Stork, M. G. Strauss, M. K. Sullivan, T. Takahashi, J. R. Thompson, N. Toge, S. Toutounchi, R. Van Tyen, B. Van Uitert, G. J. Vandalen, R. F. Van Daalen Wetters, W. Vernon, W. Wagner, E. M. Wang, Y. X. Wang, M. R. Wayne, W. A. Wenzel, J. T. White, M. C S Williams, Z. R. Wolf, H. Yamamoto, S. J. Yellin, C. Zeitlin, W. M. Zhang

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Abstract

Two-photon formation of the in the reaction e+e-e+e-me+e-+- has been studied for nearly real and virtual photons at an e+e- center-of-mass energy of 29 GeV. The width of the is found to be 4.50.3(stat.)0.7(syst.) keV. The measured dependence of this width upon the photon four-momentum squared in the range 05 GeV2 agrees with predictions both from QCD and from dominance. A spin analysis results in a strong preference for a spin-zero, relative to a spin-two, assignment for the . No evidence for C-parity violation is found in this +- decay mode.

Original languageEnglish
Pages (from-to)2650-2654
Number of pages5
JournalPhysical Review D
Volume35
Issue number9
DOIs
Publication statusPublished - 1987 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Aihara, H., Alston-Garnjost, M., Avery, R. E., Barbaro-Galtieri, A., Barker, A. R., Barnes, A. V., Barnett, B. A., Bauer, D. A., Bengtsson, H. U., Bintinger, D. L., Bobbink, G. J., Bolognese, T. S., Bross, A. D., Buchanan, C. D., Buijs, A., Caldwell, D. O., Clark, A. R., Cowan, G. D., Crane, D. A., ... Zhang, W. M. (1987). Study of formation in photon-photon collisions. Physical Review D, 35(9), 2650-2654. https://doi.org/10.1103/PhysRevD.35.2650