HAL : in2p3-00006448, version 1

arXiv : hep-ex/9909013

Fiche détaillée

Récupérer au format BibTeX - EndNote - TEI - RefWorks -

Physics Letters B 467 (1999) 165-170

Experimental evidence for a vector-like behaviour of Pomeron exchange

D. Barberis, F. Binon, F E. Close, K M. Danielsen, S V. Donskov, B C. Earl, D. Evans, B R. French, T. Hino, S. Inaba, A. Jacholkowski, T. Jacobsen, G V. Khaustov, J B. Kinson, A. Kirk, A A. Kondashov, A A. Lednev, V. Lenti, I. Minashvili, J P. Peigneux1, V. Romanovsky, N. Rusakovitch, A. Semenov, P M. Shagin, H. Shimizu, A V. Singovsky1, A E. Sobol, M. Stassinaki, J P. Stroot, K. Takamatsu, T. Tsuru, O. Villalobos Baillie, M F. Votruba, Y. Yasu

WA102 Collaboration(s)

(1999)

Evidence is presented that the Pomeron act as a non-conserved vector current. A study has been made of the azimuthal angle phi, which is defined as the angle between the pT vectors of the two outgoing protons, in the reaction pp -> pp(X0) for those resonances (X0) which are compatible with being produced by double Pomeron exchange. These distributions have been compared with a model which describes the Pomeron as a non-conserved vector current and a qualitative agreement is found. In addition, when one of the particles exchanged is known to have spin 0, namely pi-Pomeron exchange, the phi distribution is flat.

1 :	LAPP - Laboratoire d'Annecy le Vieux de Physique des Particules

Thème(s)

:

Physique/Physique des Hautes Energies - Expérience

in2p3-00006448, version 1

http://hal.in2p3.fr/in2p3-00006448

oai:hal.in2p3.fr:in2p3-00006448

Contributeur : Nicole Berger <>

Soumis le : Jeudi 5 Octobre 2000, 17:34:52

Dernière modification le : Mardi 4 Juillet 2006, 13:07:52