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Central exclusive quark-antiquark dijet and standard model Higgs boson production in proton-(anti)proton collisions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
2011 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Physical Review D, ISSN 1550-7998, Vol. 83, no 11, 114034- p.Article in journal (Refereed) Published
Abstract [en]

We consider the central exclusive production of q (q) over bar pairs and Higgs boson in proton-proton collisions at LHC. The amplitude for the process is derived within the k(perpendicular to)-factorization approach and considered in different kinematical asymptotics, in particular, in the important high quark transverse momenta and massless quark limits. Quark helicity and spin-projection amplitudes in two different frames are shown in extenso. Rapidity distributions, quark jet p(perpendicular to) distributions, invariant q (q) over bar mass distributions, angular azimuthal correlations between outgoing protons and jets are presented. Irreducible b (b) over bar background to the central exclusive Higgs boson production is analyzed in detail, in particular, how to impose cuts to maximize signal-to-background ratio.

Place, publisher, year, edition, pages
2011. Vol. 83, no 11, 114034- p.
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-155915DOI: 10.1103/PhysRevD.83.114034ISI: 000291730100001OAI: oai:DiVA.org:uu-155915DiVA: diva2:429640
Available from: 2011-07-05 Created: 2011-07-04 Last updated: 2011-07-05Bibliographically approved

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