# Production of Z^0 bosons with rapidity gaps: exclusive photoproduction in gamma p and p p collisions and inclusive double diffractive Z^0's - High Energy Physics - Phenomenology

Production of Z^0 bosons with rapidity gaps: exclusive photoproduction in gamma p and p p collisions and inclusive double diffractive Z^0's - High Energy Physics - Phenomenology - Download this document for free, or read online. Document in PDF available to download.

Abstract: We extend the k \perp-factorization formalism for exclusive photoproductionof vector mesons to the production of electroweak Z^0 bosons. Predictions forthe gamma p \to Z^0 p and p p \to p p Z^0 reactions are given using anunintegrated gluon distribution tested against deep inelastic data. We presentdistributions in the Z^0 rapidity, transverse momentum of Z^0 as well as inrelative azimuthal angle between outgoing protons. The contributions ofdifferent flavours are discussed. Absorption effects lower the cross section bya factor of 1.5-2, depending on the Z-boson rapidity. We also discuss theproduction of Z^0 bosons in central inclusive production. Here rapidity andx {\Pom,1}, x {\Pom,2} distributions of Z^0 are calculated. The correspondingcross section is about three orders of magnitude larger than that for thepurely exclusive process.

Author: ** A. Cisek, W. SchÃ¤fer, A. Szczurek**

Source: https://arxiv.org/