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Diffractive dissociation in photoproduction at HERA |
| Reference |
N.N., to be presented at DIS 2002, Spring 2002 |
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| Contact |
Robert Roosen |
| Abstract |
A new measurement of the differential cross section d sigma/d Mx^2 for the process gamma p -> X Y, with a large rapidity gap between the systems X and Y and with Y a proton or a low mass proton excitation, is presented at three centre-of-mass energies W = 91,187 and 231 GeV. The slope parameter alpha_eff(0) obtained from a triple Regge type parameterization with a single effective trajectory is presented as a function of Mx^2. |
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