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Title
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Measurement of beauty photoproduction near threshold using di-electron events with the H1 detector at HERA
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Author
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Institution/Organisation
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H1 Collaboration
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Abstract
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| The cross section for ep -> eb (b) over barX in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel b (b) over bar -> eeX' is selected by identifying the semi-electronic decays of the b-quarks. The total production cross section is measured in the kinematic range given by the photon virtuality Q(2) <= 1 GeV2, the inelasticity 0.05 <= y <= 0.65 and the pseudorapidity of the b-quarks vertical bar eta(b)vertical bar, vertical bar eta((b) over bar)vertical bar <= 2. The differential production cross section is measured as a function of the average transverse momentum of the beauty quarks < P-T(b)> down to the threshold. The results are compared to next-to-leading-order QCD predictions. |
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Language
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English
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Source (journal)
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European physical journal : C : particles and fields. - Berlin
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Publication
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Berlin
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2012
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ISSN
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1434-6044
1434-6052
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DOI
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10.1140/EPJC/S10052-012-2148-1
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Volume/pages
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72
:10
(2012)
, p. 1-19
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Article Reference
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2148
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ISI
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000310609100032
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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