Measurement of F-2(c(c)over-bar) and F-2(b(b)over-bar) at high Q(2) using the H1 vertex detector at HERA

Summary, in English

Measurements are presented of inclusive charm and beauty cross sections in e(+)p collisions at HERA for values of photon virtuality Q(2) > 150 GeV2 and of inelasticity 0.1 < y < 0.7. The charm and beauty fractions are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the H1 vertex detector. The data are divided into four regions in Q(2) and Bjorken x, and values for the structure functions F-2(c (c) over bar) and F-2(b (b) over bar) are obtained. The results are found to be compatible with the predictions of perturbative quantum chromodynamics.

• Author: A Aktas; V Andreev; T Anthonis; S Aplin; A Asmone; A Babaev; S Backovic; J Bahr; A Baghdasaryan; P Baranov; E Barrelet; W Bartel; S Baudrand; S Baumgartner; J Becker; M Beckingham; O Behnke; O Behrendt; A Belousov; C Berger; N Berger; T Berndt; JC Bizot; J Bohme; MO Boenig; V Boudry; J Bracinik; G Brandt; V Brisson; HB Broker; DP Brown; D Bruncko; FW Busser; A Bunyatyan; G Buschhorn; L Bystritskaya; AJ Campbell; S Caron; F Cassol-Brunner; K Cerny; V Chekelian; JG Contreras; YR Coppens; JA Coughlan; BE Cox; G Cozzika; J Cvach; JB Dainton; WD Dau; K Daum; B Delcourt; R Demirchyan; A De Roeck; K Desch; EA De Wolf; C Diaconu; J Dingfelder; V Dodonov; A Dubak; C Duprel; G Eckerlin; V Efremenko; S Egli; R Eichler; F Eisele; M Ellerbrock; E Elsen; W Erdmann; S Essenov; PJW Faulkner; L Favart; A Fedotov; R Felst; J Ferencei; L Finke; M Fleischer; P Fleischmann; YH Fleming; G Flucke; G Flugge; A Fomenko; I Foresti; J Formanek; G Franke; G Frising; T Frisson; E Gabathuler; K Gabathuler; E Garutti; J Garvey; J Gayler; R Gerhards; C Gerlich; S Ghazaryan; S Ginzburgskaya; A Glazov; I Glushkov; L Goerlich; M Goettlich; N Gogitidze; S Gorbounov; C Goyon; C Grab; H Grassler; T Greenshaw; M Gregori; G Grindhammer; C Gwilliam; D Haidt; L Hajduk; J Haller; Magnus Hansson; G Heinzelmann; RCW Henderson; H Henschel; O Henshaw; G Herrera; I Herynek; RD Heuer; M Hildebrandt; KH Hiller; P Hoting; D Hoffmann; R Horisberger; A Hovhannisyan; M Ibbotson; M Ismail; M Jacquet; L Janauschek; X Janssen; V Jemanov; Leif Jönsson; DP Johnson; Hannes Jung; D Kant; M Kapichine; M Karlsson; J Katzy; N Keller; IR Kenyon; C Kiesling; M Klein; C Kleinwort; T Klimkovich; T Kluge; G Knies; Albert Knutsson; V Korbel; P Kostka; R Koutouev; A Kropivnitskaya; KK Kruger; J Kuckens; MPJ Landon; W Lange; T Lastovicka; P Laycock; A Lebedev; B Leissner; R Lemrani; V Lendermann; S Levonian; L Lindfeld; K Lipka; B List; E Lobodzinska; N Loktionova; R Lopez-Fernandez; V Lubimov; H Lueders; D Luke; T Lux; L Lytkin; A Makankine; N Malden; E Malinovski; S Mangano; P Marage; J Marks; R Marshall; M Martisikova; HU Martyn; SJ Maxfield; D Meer; A Mehta; K Meier; AB Meyer; H Meyer; J Meyer; S Mikocki; I Milcewicz-Mika; D Milstead; A Mohamed; F Moreau; A Morozov; JV Morris; MU Mozer; K Muller; P Murin; V Nagovizin; K Nankov; B Naroska; J Naumann; T Naumann; PR Newman; C Niebuhr; A Nikiforov; D Nikitin; G Nowak; M Nozicka; R Oganezov; B Olivier; JE Olsson; D Ozerov; C Pascaud; GD Patel; M Peez; E Perez; D Perez-Astudillo; A Perieanu; A Petrukhin; D Pitzl; R Placakyte; R Poschl; B Portheault; B Povh; P Prideaux; N Raicevic; P Reimer; A Rimmer; C Risler; E Rizvi; P Robmann; B Roland; R Roosen; A Rostovtsev; Z Rurikova; S Rusakov; F Salvaire; DPC Sankey; E Sauvan; S Schatzel; J Scheins; FP Schilling; S Schmidt; S Schmitt; C Schmitz; M Schneider; L Schoeffel; A Schoning; V Schroder; HC Schultz-Coulon; C Schwanenberger; K Sedlak; F Sefkow; I Sheviakov; LN Shtarkov; Y Sirois; T Sloan; P Smirnov; Y Soloviev; D South; V Spaskov; A Specka; B Stella; J Stiewe; I Strauch; U Straumann; V Tchoulakov; G Thompson; PD Thompson; F Tomasz; D Traynor; P Truol; G Tsipolitis; I Tsurin; J Turnau; E Tzamariudaki; A Uraev; M Urban; A Usik; D Utkin; S Valkar; A Valkarova; C Vallee; P Van Mechelen; N Van Remortel; AV Trevino; Y Vazdik; C Veelken; A Vest; S Vinokurova; V Volchinski; B Vujicic; K Wacker; J Wagner; G Weber; R Weber; D Wegener; C Werner; N Werner; M Wessels; B Wessling; C Wigmore; GG Winter; C Wissing; Z Zhang; E Woehrling; R Wolf; E Wunsch; S Xella; W Yan; V Yeganov; J Zacek; J Zalesak; Z Zhang; A Zhelezov; A Zhokin; J Zimmermann; H Zohrabyan; F Zomer
• Department/s: Particle and nuclear physics
• Publishing year: 2005
• Language: English
• Pages: 349-359
• Publication/Series: European Physical Journal C. Particles and Fields
• Volume: 40
• Issue: 3
• Links: http://dx.doi.org/10.1140/epjc/s2005-02154-8
• Document type: Journal article
• Publisher: Springer
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1434-6044