Title
Measurement of beauty and charm photoproduction using semi-muonic decays in dijet events at HERA
Date Issued
01 January 2012
Access level
open access
Resource Type
journal article
Author(s)
Aaron F.D.
Alexa C.
Andreev V.
Backovic S.
Baghdasaryan A.
Baghdasaryan S.
Barrelet E.
Bartel W.
Begzsuren K.
Belousov A.
Belov P.
Bizot J.C.
Boudry V.
Bozovic-Jelisavcic I.
Bracinik J.
Brandt G.
Brinkmann M.
Brisson V.
Britzger D.
Bruncko D.
Bunyatyan A.
Bylinkin A.
Bystritskaya L.
Campbell A.J.
Cantun Avila K.B.
Ceccopieri F.
Cerny K.
Cerny V.
Chekelian V.
Contreras J.G.
Coughlan J.A.
Cvach J.
Dainton J.B.
Daum K.
Delcourt B.
Delvax J.
de Wolf E.A.
Diaconu C.
Dobre M.
Dodonov V.
Dossanov A.
Dubak A.
Eckerlin G.
Egli S.
Eliseev A.
Elsen E.
Favart L.
Fedotov A.
Felst R.
Feltesse J.
Ferencei J.
Fischer D.J.
Fleischer M.
Fomenko A.
Gabathuler E.
Gayler J.
Ghazaryan S.
Glazov A.
Goerlich L.
Gogitidze N.
Gouzevitch M.
Grab C.
Grebenyuk A.
Greenshaw T.
Grindhammer G.
Habib S.
Haidt D.
Henderson R.C.W.
Hennekemper E.
Henschel H.
Herbst M.
Herrera G.
Hildebrandt M.
Hiller K.H.
Hoffmann D.
Horisberger R.
Hreus T.
Huber F.
Jacquet M.
Janssen X.
Jönsson L.
Jung H.
Kapichine M.
Kenyon I.R.
Kiesling C.
Klein M.
Kleinwort C.
Kluge T.
Kogler R.
Kostka P.
Krämer M.
Kretzschmar J.
Krüger K.
Landon M.P.J.
Lange W.
Laštovička-Medin G.
Laycock P.
Lebedev A.
Lendermann V.
Levonian S.
Publisher(s)
Springer New York LLC
Abstract
Measurements of cross sections for beauty and charm events with dijets and a muon in the photoproduction regime at HERA are presented. The data were collected with the H1 detector and correspond to an integrated luminosity of 179 pb-1. Events with dijets of transverse momentum PTjet1 > 7 GeV and PTjet2 > 6 GeV in the pseudorapidity range -1.5 < ηjet < 2.5 in the laboratory frame are selected in the kinematic region of photon virtuality Q2 < 2.5 GeV2 and inelasticity 0.2 < y < 0.8. One of the two selected jets must be associated to a muon with PTμ > 2.5 GeV in the pseudorapidity range -1.3 < η μ < 1.5. The fractions of beauty and charm events are determined using the impact parameters of the muon tracks with respect to the primary vertex and their transverse momentum relative to the axis of the associated jet. Both variables are reconstructed using the H1 vertex detector. The measurements are in agreement with QCD predictions at leading and next-to-leading order. © 2012 The Author(s).
Start page
1
End page
19
Volume
72
Issue
6
Language
English
OCDE Knowledge area
Astronomía
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-84864484154
Source
European Physical Journal C
ISSN of the container
14346044
Sponsor(s)
Science and Technology Facilities Council - ST/K001418/1, ST/M001474/1.
Sources of information:
Directorio de Producción Científica
Scopus