H1prelim-07-171

Measurement of F2cc and F2bb using the H1 vertex detector at HERA

Reference Preliminary for LP2007, Summer 2007
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Contact Paul Thompson, Andrew Mehta
Abstract The inclusive charm and beauty cross sections are measured in e-p collisions at HERA in the kinematic region of photon virtuality 12 < Q2 < 650 GeV2 and Bjorken scaling variable 0.0002< x < 0.032. The data were collected with the H1 detector in 2006 corresponding to an integrated luminosity of 54 pb-1. 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 measurements are compared with previous data and NLO predictions.
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