Title
Measurement of F2cc̄ and F2 bb̄ at low Q2 and x using the HI vertex detector at HERA
Date Issued
01 January 2006
Access level
open access
Resource Type
journal article
Author(s)
Aktas A.
Andreev V.
Anthonis T.
Aplin S.
Asmone A.
Astvatsatourov A.
Babaev A.
Backovic S.
Bähr J.
Baghdasaryan A.
Baranov P.
Barrelet E.
Bartel W.
Baudrand S.
Baumgartner S.
Becker J.
Beckingham M.
Behnke O.
Behrendt O.
Belousov A.
Berger C.
Berger N.
Bizot J.C.
Boenig M.O.
Boudry V.
Bracinik J.
Brandt G.
Brisson V.
Brown D.P.
Bruncko D.
Büsser F.W.
Bunyatyan A.
Buschhorn G.
Bystritskaya L.
Campbell A.J.
Caron S.
Cassol-Brunner F.
Cerny K.
Cerny V.
Chekelian V.
Contreras J.G.
Coughlan J.A.
Cox B.E.
Cozzika G.
Cvach J.
Dainton J.B.
Dau W.D.
Daum K.
de Boer Y.
Delcourt B.
de Roeck A.
Desch K.
de Wolf E.A.
Diaconu C.
Dodonov V.
Dubak A.
Eckerlin G.
Efremenko V.
Egli S.
Eichler R.
Eisele F.
Ellerbrock M.
Elsen E.
Erdmann W.
Essenov S.
Falkewicz A.
Faulkner P.J.W.
Favart L.
Fedotov A.
Felst R.
Ferencei J.
Finke L.
Fleischer M.
Fleischmann P.
Fleming Y.H.
Flucke G.
Fomenko A.
Foresti I.
Franke G.
Frisson T.
Gabathuler E.
Garutti E.
Gayler J.
Gerlich C.
Ghazaryan S.
Ginzburgskaya S.
Glazov A.
Glushkov I.
Goerlich L.
Goettlich M.
Gogitidze N.
Gorbounov S.
Goyon C.
Grab C.
Greenshaw T.
Gregori M.
Grell B.R.
Grindhammer G.
Gwilliam C.
Haidt D.
Publisher(s)
Springer New York LLC
Abstract
Measurements are presented of inclusive charm and beauty cross sections in e+p collisions at HERA for values of photon virtuality 12 ≤ Q 2 ≤ 60 GeV2 and of the Bjorken scaling variable 0.0002 ≤ x ≤ 0.005. The fractions of events containing charm and beauty quarks are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the HI vertex detector. Values for the structure functions F2cc̄ and F 2bb̄ are obtained. This is the first measurement of F2bb̄ in this kinematic range. The results are found to be compatible with the predictions of perturbative quantum chromodynamics and with previous measurements of F2cc̄.
Start page
23
End page
33
Volume
45
Issue
1
Language
English
OCDE Knowledge area
Física nuclear
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-28744449493
Source
European Physical Journal C
ISSN of the container
14346044
Sources of information:
Directorio de Producción Científica
Scopus