Exclusive production of proton-antiproton pairs in two-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, S. K. 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. K. Sullivan, M. G. Strauss, T. Takahashi, J. R. Thompson, N. Toge, S. Toutounchi, R. Van Tyen, B. Van Uitert, G. J. Van Dalen, 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. Woif, H. Yamamoto, S. J. Yellin, C. Zeitlin, W. M. Zhang

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We report cross sections for the process γ γ PP at center-of-mass energies W from 2.0 to 2.8 GeV. These results have been extracted from measurements of e+e e + e -pp at an overall center-of-mass energy of 29 GeV, using the TPC/Two-Gamma facility at the SLAC storage ring PEP. Cross sections for the untagged mode (both photons nearly real] arc shown to lie wsll above QCD predictions. Results are also presented for the single-tagged mode [one photon in the range 0.16 < Q2 < 1.6 (GeV/c)2).

    Original languageEnglish (US)
    Pages (from-to)3506-3509
    Number of pages4
    JournalPhysical Review D
    Volume36
    Issue number11
    DOIs
    StatePublished - 1987

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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