Measurement of the charm and beauty structure functions using the H1 vertex detector at HERA
(ukupan broj autora: 248)
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Inclusive charm and beauty cross sections are measured in e (-) p and e (+) p neutral current collisions at HERA in the kinematic region of photon virtuality 5a parts per thousand currency signQ (2)a parts per thousand currency sign2000 GeV(2) and Bjorken scaling variable 0.0002a parts per thousand currency signxa parts per thousand currency sign0.05. The data were collected with the H1 detector in the years 2006 and 2007 corresponding to an integrated luminosity of 189 pb(-1). The numbers of charm and beauty events are determined using variables reconstructed by the H1 vertex detector including the impact parameter of tracks to the primary vertex and the position of the secondary vertex. The measurements are combined with previous data and compared to QCD predictions.
Source:European Physical Journal C. Particles and Fields, 2010, 65, 1-2, 89-109
- World Laboratory Bjorn Wiik Research, Bundesministerium fur Bildung und Forschung, FRG [05 H1 1GUA/1, 05 H1 1PAA/1, 05 H1 1PAB/9, 05 H1 1PEA/6, 05 H1 1VHA/7, 05 H1 1VHB/5], UK Science and Technology Facilities Council, FNRS-FWO-Vlaanderen, IISN-IIKW and IWT, Polish Ministry of Science and Higher Education [PBS/DESY/70/2006], Deutsche Forschungsgemeinschaft, VEGA SR [2/7062/27], Swedish Natural Science Research Council, Ministry of Education of the Czech Republic [LC527, INGO-1P05LA259, MSM0021620859], Swiss National Science Foundation, CONACYT, Mexico [48778-F], Russian Foundation for Basic Research (RFBR) [1329.2008.2]