13,149 research outputs found
Heavy quark production at HERA and its relevance for the LHC
The import of HERA data on heavy quark production for LHC experiments is
discussed. Knowlegde of all aspects of the beauty and charm production process,
viz. the parton density functions of colliding hadrons, the hard scatter, and
the fragmentation of the quarks into hadrons, can aid LHC experimentation. This
short write-up concentrates on possible influences HERA data can have and on
the current status (and history) of beauty production from both HERA and
Tevatron experiments. In general, next-to-leading order QCD gives a reasonable
description of beauty production although some regions of phase space such as
low p_T show indications of differences.Comment: 4 pages, to appear in DIS2006 conference proceeding
Inclusive dijet photoproduction and the resolved photon at THERA
A future facility, THERA, where electrons of 250 GeV and protons of 920
GeV are collided could provide valuable information on the structure of the
photon. With an increase in the centre-of-mass energy of a factor of 3 and an
extension of the minimum photon energy fraction carried by the interacting
parton of a factor of 10 compared to HERA, a new kinematic regime in the study
of the photon will be opened. Inclusive dijet production has been studied and
the potential gains the new collider would bring are discussed. The differences
between current parametrisations of the photon structure in this new kinematic
region are shown to be up to 50%. Comparisons of THERA's capabilities are made
with what HERA can currently produce and how it complements colliders
addressed.Comment: 10 pages, 6 figures (corrected references). To appear in "The THERA
Book", DESY-LC-REV-2001-06
Data Acquisition in the EUDET Project
The goal of the EUDET project is the development and construction of
infrastructure to permit detector R&D for the International Linear Collider
(ILC) with larger scale prototypes. It encompasses major detector components:
the vertex detector, the tracker and the calorimeters. We describe here the
status and plans of the project with emphasis on issues related to data
acquisition for future test beam experiments.Comment: 4 pages, 2 figures, to appear in the proceedings of Linear Collider
Workshop (LCWS06), Bangalore, Indi
Compilation of detection sensitivities in thermal-neutron activation
Detection sensitivities of the chemical elements following thermal-neutron activation have been compiled from the available experimental cross sections and nuclear properties and presented in a concise and usable form. The report also includes the equations and nuclear parameters used in the calculations
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