Evidence for double Pomeron exchange at the CERN ISR Academic Article uri icon

abstract

  • We have observed events at the CERN Intersecting Storage Rings (ISR) which are consistent with the double Pomeron exchange process p + p p + X + p, where X represents a system of particles in the central region of the rapidity distribution separated by at least two units from the outgoing protons in the forward directions. The observed low charge multiplicity of the central cluster X indicates that this process is dominated by the formation of a low-mass system in the central region. In particular, we find that the differential cross-section for the process p + p p + h+ + h- + p, where h represents a charged particle, shows no correlation between tA and tB and has an exponential slope of 9.9 1.8 GeV-2 independent of energy. The cross-section for this process is found to be approximately 20 b over the ISR energy range. 1976.

published proceedings

  • Physics Letters B

author list (cited authors)

  • Baksay, L., Baum, L., Bhm, A., Derevshchikov, A., Hilscher, H., Kernan, A., ... Trilling, G.

citation count

  • 24

complete list of authors

  • Baksay, L||Baum, L||Böhm, A||Derevshchikov, A||Hilscher, H||Kernan, A||Layter, J||McIntyre, P||Muller, F||Naroska, B||Rossi, L||Schinzel, D||Shen, B||Staude, A||Strolin, P||Tarnopolsky, G||Telegdi, V||Trilling, G

publication date

  • March 1976