info:eu-repo/semantics/article
Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at Ebeam = 4 TeV
Fecha
2018-10Registro en:
Aaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; et al.; Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at Ebeam = 4 TeV; IOP Publishing; Journal of Instrumentation; 13; 10-2018; 1-44
1748-0221
CONICET Digital
CONICET
Autor
Aaboud, M.
Aad, G.
Abbott, B.
Abdinov, O.
Abeloos, B.
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, Maria Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernan Pablo
Bossio Sola, Jonathan David
Daneri, María Florencia
Devesa, Maria Roberta
Marceca, Gino
Otero y Garzon, Gustavo Javier
Piegaia, Ricardo Nestor
Sacerdoti, Sabrina
Zinonos, Z.
Zinser, M.
Ziolkowski, M.
Živković, L.
Zobernig, G.
Zoccoli, A.
Zoch, K.
Nedden, M. zur
Zorbas, T. G.
Zou, R.
Zwalinski, L.
The ATLAS Collaboration
Resumen
Results of dedicated Monte Carlo simulations of beam-induced background (BIB) in the ATLAS experiment at the Large Hadron Collider (LHC) are presented and compared with data recorded in 2012. During normal physics operation this background arises mainly from scattering of the 4 TeV protons on residual gas in the beam pipe. Methods of reconstructing the BIB signals in the ATLAS detector, developed and implemented in the simulation chain based on the \textsc{Fluka} Monte Carlo simulation package, are described. The interaction rates are determined from the residual gas pressure distribution in the LHC ring in order to set an absolute scale on the predicted rates of BIB so that they can be compared quantitatively with data. Through these comparisons the origins of the BIB leading to different observables in the ATLAS detectors are analysed. The level of agreement between simulation results and BIB measurements by ATLAS in 2012 demonstrates that a good understanding of the origin of BIB has been reached.