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arXiv · hep-ex/9909013

Experimental evidence for a vector-like behaviour of Pomeron exchange

The WA102 Collaboration·D. Barberis
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Abstract

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.

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The WA102 Collaboration, D. Barberis. 1999-09-08. Experimental evidence for a vector-like behaviour of Pomeron exchange. https://doi.org/10.1016/s0370-2693(99)01186-7

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