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arxiv: hep-ph/9701254 · v4 · submitted 1997-01-09 · ✦ hep-ph

Reggeon and pion contributions in semi-exclusive diffractive processes at HERA

K.Golec-Biernat , J.Kwieci\'nski , A.Szczurek This is my paper
classification ✦ hep-ph
keywords diffractiveforwardheraneutronprocessescontributionsestimatedpion
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A detailed analysis of semi-exclusive diffractive processes in e-p DIS at HERA, with the diffractive final states in the forward direction is presented. The contributions of the subleading f_2, \omega, a_2, \rho reggeons and the pion exchanges to the diffractive structure function with the forward proton or neutron are estimated. It is found that the (a_2,\rho) reggeons are entirely responsible for the forward neutron production at x_P < 10^{-3}. The \pi N production in the forward region is estimated using the Deck mechanism. The significance of this reaction for the processes measured at HERA, especially with the leading neutron, is discussed.

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