The possibility that the triple-Pomeron coupling vanishes at q
t
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Authors: | E G S Luna V A Khoze A D Martin M G Ryskin |
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Institution: | 1. Instituto de Física e Matemática, Universidade Federal de Pelotas, Caixa Postal 354, 96010-900, Pelotas, RS, Brazil 2. Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE, UK 3. Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, 188300, Russia
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Abstract: | We study the case when the triple-Pomeron vertex is assumed to have a vectorial form, that is, the amplitude of high-mass diffractive dissociation vanishes as $V\propto \vec{q}_{t}\cdot\vec{e}$ as q t →0. We find that the available data in the triple-Reggeon region may be well described in such a ‘weak’ coupling scenario, providing that absorptive effects are taken into account. We compare this weak-vector coupling scenario with the strong and weak-scalar coupling scenarios. Corresponding predictions are presented for an LHC energy of 14 TeV. |
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