We upgraded Indico to version 3.0. The new search is now available as well.

# ICHEP2012

4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

## Luminosity determination in p-p collisions at center-of-mass energy of 7 TeV using the ATLAS detector at the LHC

6 Jul 2012, 10:00
15m
Room 218 (Melbourne Convention and Exhibition Centre)

### Room 218

#### Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 13. Detectors and Computing for HEP

### Speaker

Mr Eric Torrence (University of Oregon (US))

### Description

A precision luminosity measurement is of critical importance for the ATLAS physics program, both for searches for new physics as well as for precision measurements of Standard Model cross-sections.  The absolute calibration of the ATLAS luminosity scale is based on beam separation (van der Meer) scans which are used to calibrate a variety of luminosity-sensitive detectors.  These detectors then measure the luminosity continuously during regular physics operations.  Uncertainties on the luminosity measurement are evaluated based on the calibration procedure itself, plus uncertainties related to extrapolating this calibration to the entire physics data sample.  The final luminosity measurement for the ATLAS detector during p-p collisions at center-of-mass energy of 7 TeV in 2010 and 2011 is presented, along with prospects for luminosity measurements in p-p collisions at 8 TeV in 2012.

### Primary author

Mr Eric Torrence (University of Oregon (US))

 Slides