TOTEM: Prospects for Total Cross-Section and Luminosity Measurements
M. Deile (for the TOTEM Collaboration)
TL;DR
The TOTEM experiment has completed its detector setup and aims to measure the total proton-proton cross-section and luminosity with high precision using specialized beam optics configurations during upcoming LHC runs.
Contribution
This paper reports on the completion of the TOTEM detector setup and the prospects for precise measurements of total cross-section and luminosity at the LHC.
Findings
Initial measurement of sigma_tot and L planned for 2011
Expected measurement precision of 3% for sigma_tot and 4% for L
Future beam optics will improve uncertainty to 1%
Abstract
With the installation of the T1 telescope and the Roman Pot stations at 147 m from IP5, the detector apparatus of the TOTEM experiment has been completed during the technical stop in winter 2010/2011. After the commissioning of the dedicated beam optics with beta* = 90 m, a first measurement of the total pp cross-section sigma_tot and -- simultaneously -- the luminosity L will be possible in the upcoming running season 2011. The precision envisaged is 3 % and 4 % for sigma_tot and L, respectively. An ultimate beam optics configuration with beta* ~ 1 km will later reduce the uncertainty to the 1 % level.
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Taxonomy
TopicsCalibration and Measurement Techniques · Optical Systems and Laser Technology