Observation of vertex factorisation breaking in central pp interactions

D. Barberis, W. Beusch, F. G. Binon, J. N. Carney, D. Di Bari, A. V. Dolgopolov, S. V. Donskov, B. C. Earl, D. Elia, D. Evans, R. Fini, B. R. French, B. Ghidini, S. Inaba, A. V. Inyakin, A. Jacholkowski, G. V. Khaustov, T. Kinashi, J. B. Kinson, A. KirkW. Klempt, M. Kobayashi, A. A. Kondashov, Y. Kulchitsky, A. A. Lednev, V. Lenti, V. A. Lishin, R. A. Loconsole, S. Maljukov, V. Manzari, P. Martinengo, I. Minashvili, T. Nakagawa, F. Navach, K. L. Norman, J. P. Peigneux, S. A. Polovnikov, V. A. Polyakov, Yu D. Prokoshkin, V. Romanovsky, H. Rotscheidt, N. Russakovich, V. D. Samoylenko, A. Semenov, M. Sené, R. Sené, P. M. Shagin, H. Shimizu, A. V. Shtannikov, A. V. Singovsky, A. Solovjev, J. P. Stroot, V. P. Sugonyaev, K. Takamatsu, G. Tchlatchidze, T. Tsuru, G. Vassiliadis, M. Venables, O. Villalobos Baillie, M. F. Votruba, Y. Yasu

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Central π+ π- events produced in pp interactions are studied in terms of correlations between the outgoing protons. It is observed there is more ρ0(770) and f2(1270) production in reactions where the outgoing protons are on opposite sides of the beam. This effect is not attributable to the trigger or the experimental acceptance, and suggests that the vertices do not factorise.

Original languageEnglish
Pages (from-to)853-858
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number4
Publication statusPublished - 1996 Nov 28
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Observation of vertex factorisation breaking in central pp interactions'. Together they form a unique fingerprint.

Cite this