Charm and Beauty Production at HERA-B
Ulrich Husemann (for the HERA-B Collaboration)
TL;DR
This paper reports on measurements of heavy quark production, specifically J/psi mesons and b-bbar pairs, in proton-nucleus collisions at HERA-B, providing insights into nuclear effects and cross sections at 41.6 GeV.
Contribution
It presents the first measurements of nuclear effects in J/psi production and the b-bbar production cross section at HERA-B energies.
Findings
Observation of nuclear effects in J/psi production
Measurement of b-bbar production cross section
Analysis of heavy quark production at 41.6 GeV
Abstract
The HERA-B experiment at DESY has acquired a data set of approximately 300,000 decays J/psi -> l+l- during its 2002/2003 data-taking period. These data are used to analyze the production of heavy quarks in proton-nucleus interactions at a center-of-mass energy of 41.6 GeV. In this article, preliminary results of two measurements are discussed, a measurement of nuclear effects in the production of J/psi mesons and a measurement of the b-bbar production cross section.
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