Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

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. © 2018 CERN for the benefit of the ATLAS collaboration.

Registro:

Documento: Artículo
Título:Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at E beam =4 TeV
Autor:The ATLAS collaboration et al.
Este artículo contiene 2895 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2895 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Accelerator modelling and simulations (multi-particle dynamics; Radiation calculations; Simulation methods and programs; single-particle dynamics); Colliding beam accelerators; Intelligent systems; Tellurium compounds; ATLAS detectors; ATLAS experiment; Interaction rate; Large Hadron collider LHC; Modelling and simulations; Radiation calculations; Residual gas pressure; Single-particle dynamics; Monte Carlo methods
Año:2018
Volumen:13
Número:12
DOI: http://dx.doi.org/10.1088/1748-0221/13/12/P12006
Título revista:Journal of Instrumentation
Título revista abreviado:J. Instrum.
ISSN:17480221
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17480221_v13_n12_p_TheATLAScollaboration

Referencias:

  • Collaboration, A., The ATLAS experiment at the CERN Large Hadron Collider (2008) JINST, 3 (8), p. S08003
  • Thompson, J.M., Operational experience with the CMS pixel detector (2011) Nucl. Phys. Proc. Suppl., 215, p. 133. , https://doi.org/10.1016/j.nuclphysBPS.2011.03.157
  • Collaboration, A., Search for new phenomena with the monojet and missing transverse momentum signature using the ATLAS detector in s1/2=7 TeV proton-proton collisions (2011) Phys. Lett., 705, p. 294. , Search for new phenomena with the monojet and missing transverse momentum signature using the ATLAS detector in sbsup;1/2esup;=7 TeV proton-proton collisions, [1106.5327]
  • Collaboration, A., Search for long-lived stopped R-hadrons decaying out-of-time with pp collisions using the ATLAS detector (2013) Phys. Rev., 88, p. 112003. , https://doi.org/10.1103/PhysRevD.88.112003 [1310.6584]
  • Collaboration, A., Search for pair-produced long-lived neutral particles decaying in the ATLAS hadronic calorimeter in pp collisions at s1/2=8 TeV (2015) Phys. Lett., 743, p. 15. , Search for pair-produced long-lived neutral particles decaying in the ATLAS hadronic calorimeter in pp collisions at sbsup;1/2esup;=8 TeV, https://doi.org/10.1016/j.physletb.2015.02.015 [1501.04020]
  • Collaboration, A., Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector (2018) J. High Energy Phys., 2018 (1), p. 126. , JHEP01(2018)126 [1711.03301]
  • Tesarek, R.J., (2008) Beam Induced Backgrounds: CDF Experience, FERMILAB-CONF-08-131-AD-E, , Fermilab, Batavia, IL, U.S.A
  • Andreev, V., (2002) Technical Report On the Beam Induced Backgrounds in the H1 Detector, , H1 note H1-10/02-606
  • Alemany-Fernández, R., (2009) LHC Workshop On Experimental Conditions and Beam-induced Detector Backgrounds, , CERN-2009-003, CERN, Geneva, Switzerland
  • Drozhdin, A.I., Huhtinen, M., Mokhov, N.V., Accelerator related background in the CMS detector at LHC (1996) Nucl. Instrum. Meth., 381, p. 531. , https://doi.org/10.1016/S0168-9002(96)00807-8
  • Drozhdin, A.I., Mokhov, N.V., Striganov, S.I., (2009) Beam Losses and Background Loads On Collider Detectors Due to Beam-gas Interactions in the LHC, http://cds.cern.ch/record/1370157FERMILAB-CONF-09-172
  • Mokhov, N.V., Weiler, T., (2008) The Role of Collinear Photons in the Rare Decay → Xs ℓ+ ℓ-, http://cds.cern.ch/record/1115100FERMILAB-CONF-08-147, , The role of collinear photons in the rare decay barB; rarr; Xbsub;sesub; ell;bsup;+esup; ell;bsup;-esup;, http://cds.cern.ch/record/1115100FERMILAB-CONF-08-147
  • Appleby, R.B., Simulation of machine induced background in the LHCb experiment: Methodology and implementation (2012) IEEE Trans. Nucl. Sci., 59, p. 1681. , https://doi.org/10.1109/TNS.2012.2202402
  • Bruce, R., Sources of machine-induced background in the ATLAS and CMS detectors at the CERN Large Hadron Collider (2013) Nucl. Instrum. Meth., 729, p. 825. , https://doi.org/10.1016/j.nima.2013.08.058
  • Collaboration, A., Characterisation and mitigation of beam-induced backgrounds observed in the ATLAS detector during the 2011 proton-proton run (2013) JINST, 8 (7), p. P07004. , [1303.0223]
  • Collaboration, A., Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period (2016) JINST, 11 (5), p. P05013. , [1603.09202]
  • Böhlen, T.T., The FLUKA code: Developments and challenges for high energy and medical applications (2014) Nucl. Data Sheets, 120, p. 211. , https://doi.org/10.1016/j.nds.2014.07.049
  • Ferrari, A., Sala, P.R., Fassò, A., Ranft, J., (2005) FLUKA: A Multi-particle Transport Code, , CERN-2005-010, CERN, Geneva, Switzerland
  • Brüning, O.S., (2004) LHC Design Report, , CERN-2004-003-V-1CERN-2004-003, CERN, Geneva, Switzerland
  • Bruce, R., Reaching record-low β∗ at the CERN Large Hadron Collider using a novel scheme of collimator settings and optics (2017) Nucl. Instrum. Meth., 848, p. 19. , Reaching record-low beta;bsup;∗esup; at the CERN Large Hadron Collider using a novel scheme of collimator settings and optics, https://doi.org/10.1016/j.nima.2016.12.039
  • Cindro, V., The ATLAS beam conditions monitor (2008) JINST, 3 (2), p. P02004
  • Collaboration, A., (1997) ATLAS Inner Detector: Technical Design Report, 1, , CERN-LHCC-97-016, CERN, Geneva, Switzerland
  • Bruce, R., Simulations and measurements of beam loss patterns at the CERN Large Hadron Collider (2014) Phys. Rev. ST Accel. Beams, 17, p. 081004. , https://doi.org/10.1103/physrevstab.17.081004
  • (2017) Beam Backgrounds in the ATLAS Detector during LHC Loss Map Tests at β∗=40 Cm and β∗=80 Cm at E-beam=6.5 TeV, , Beam backgrounds in the ATLAS detector during LHC loss map tests at beta;∗=40 cm and beta;∗=80 cm at E-mathrm;beam=6.5 TeV, http://cds.cern.ch/record/2286836ATL-DAPR-PUB-2017-001
  • Benvenuti, C., Chiggiato, P., Cicoira, F., Ruzinov, V., Decreasing surface outgassing by thin film getter coatings (1998) Vacuum, 50, p. 57. , https://doi.org/10.1016/s0042-207x(98)00017-7
  • Bregliozzi, G., Lanza, G., Baglin, V., Jimenez, J., Vacuum stability and residual gas density estimation for the vacuum chamber upgrade of the ATLAS interaction region of the Large Hadron Collider (2012) Vacuum, 86, p. 1682. , https://doi.org/10.1016/j.vacuum.2012.03.041
  • Cacciari, M., Salam, G.P., Soyez, G., The anti-kt jet clustering algorithm (2008) J. High Energy Phys., 2008 (4), p. 063. , The anti-kbsub;tesub; jet clustering algorithm JHEP04(2008)063 [0802.1189]
  • Cacciari, M., Salam, G.P., Soyez, G., FastJet user manual (2012) Eur. Phys. J., 72, p. 1896. , https://doi.org/10.1140/epjc/s10052-012-1896-2 [1111.6097]
  • Collaboration, A., Jet energy measurement and its systematic uncertainty in proton-proton collisions at s1/2=7 TeV with the ATLAS detector (2015) Eur. Phys. J., 75, p. 17. , Jet energy measurement and its systematic uncertainty in proton-proton collisions at sbsup;1/2esup;=7 TeV with the ATLAS detector, https://doi.org/10.1140/epjc/s10052-014-3190-y [1406.0076]
  • Collaboration, A., Monitoring and data quality assessment of the ATLAS liquid argon calorimeter (2014) JINST, 9 (7), p. P07024. , [1405.3768]
  • Kwee-Hinzmann, R., (2017) Machine-induced Background Simulation Studies for LHC Run 1, Run 2 and HL-LHC, , CERN-ACC-2017-0025, CERN, Geneva, Switzerland
  • Baranov, S., (2005) Estimation of Radiation Background, Impact On Detectors, Activation and Shielding Optimization in ATLAS, , http://cds.cern.ch/record/814823ATL-GEN-2005-001, CERN, Geneva, Switzerland
  • Collaboration, A., The ATLAS simulation infrastructure (2010) Eur. Phys. J., 70, p. 823. , https://doi.org/10.1140/epjc/s10052-010-1429-9 [1005.4568]
  • Collaboration, G., Agostinelli, S., GEANT4: A simulation toolkit (2003) Nucl. Instrum. Meth., 506, p. 250. , https://doi.org/10.1016/S0168-9002(03)01368-8
  • Collaboration, A., (2016) ATLAS Computing Acknowledgements, , http://cds.cern.ch/record/2202407ATL-GEN-PUB-2016-002, CERN, Geneva, Switzerland

Citas:

---------- APA ----------
(2018) . Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at E beam =4 TeV. Journal of Instrumentation, 13(12).
http://dx.doi.org/10.1088/1748-0221/13/12/P12006
---------- CHICAGO ----------
The ATLAS collaboration. "Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at E beam =4 TeV" . Journal of Instrumentation 13, no. 12 (2018).
http://dx.doi.org/10.1088/1748-0221/13/12/P12006
---------- MLA ----------
The ATLAS collaboration. "Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at E beam =4 TeV" . Journal of Instrumentation, vol. 13, no. 12, 2018.
http://dx.doi.org/10.1088/1748-0221/13/12/P12006
---------- VANCOUVER ----------
The ATLAS collaboration. Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at E beam =4 TeV. J. Instrum. 2018;13(12).
http://dx.doi.org/10.1088/1748-0221/13/12/P12006