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Exclusive b(b)over-bar pair production and irreducible background to the exclusive Higgs boson production
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
2010 (English)In: Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, Vol. 82, no 11, 114011- p.Article in journal (Refereed) Published
Abstract [en]

We calculated the cross section for the exclusive double-diffractive b (b) over bar production in pp -> p(b (b) over bar )p reaction at LHC. Large cross sections are obtained (3-10 nb). This process constitutes the irreducible background to the exclusive Higgs production and is of particular importance in the upcoming Higgs boson searches. The distribution in invariant mass of the b (b) over bar pair is calculated and compared with the corresponding contribution from the Higgs decay. The contribution from the exclusive production of Z(0) and its decay as well as the contribution from the gamma gamma -> b (b) over bar subprocess are also presented for the first time. The influence of cuts on the signal-to-background ratio is discussed.

Place, publisher, year, edition, pages
2010. Vol. 82, no 11, 114011- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-147777DOI: 10.1103/PhysRevD.82.114011ISI: 000286566300002OAI: oai:DiVA.org:uu-147777DiVA: diva2:400866
Available from: 2011-02-28 Created: 2011-02-28 Last updated: 2011-02-28Bibliographically approved

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