Measurements of underlying-event properties using neutral and charged particles in pp collisions at √s = 900 GeV and √s = 7 TeV with the ATLAS detector at the LHC

The ATLAS Collaboration

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Abstract

We present first measurements of charged and neutral particle-flow correlations in pp collisions using the ATLAS calorimeters.Data were collected in 2009 and 2010 at centre-of-mass energies of 900 GeV and 7 TeV.Events were selected using a minimum-bias trigger which required a charged particle in scintillation counters on either side of the interaction point.Particle flows, sensitive to the underlying event, are measured using clusters of energy in the ATLAS calorimeters, taking advantage of their fine granularity.No Monte Carlo generator used in this analysis can accurately describe the measurements.The results are independent of those based on charged particles measured by the ATLAS tracking systems and can be used to constrain the parameters of Monte Carlo generators.

Original languageEnglish
Article number1636
JournalEuropean Physical Journal C
Volume71
Issue number5
DOIs
Publication statusPublished - 2011
Externally publishedYes

Fingerprint

neutral particles
Charged particles
Calorimeters
charged particles
Detectors
Scintillation counters
collisions
calorimeters
detectors
generators
scintillation counters
center of mass
actuators
energy
interactions

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

@article{d8fcadae63874fa8a4d1f8a9a3ce926b,
title = "Measurements of underlying-event properties using neutral and charged particles in pp collisions at √s = 900 GeV and √s = 7 TeV with the ATLAS detector at the LHC",
abstract = "We present first measurements of charged and neutral particle-flow correlations in pp collisions using the ATLAS calorimeters.Data were collected in 2009 and 2010 at centre-of-mass energies of 900 GeV and 7 TeV.Events were selected using a minimum-bias trigger which required a charged particle in scintillation counters on either side of the interaction point.Particle flows, sensitive to the underlying event, are measured using clusters of energy in the ATLAS calorimeters, taking advantage of their fine granularity.No Monte Carlo generator used in this analysis can accurately describe the measurements.The results are independent of those based on charged particles measured by the ATLAS tracking systems and can be used to constrain the parameters of Monte Carlo generators.",
author = "{The ATLAS Collaboration} and Z. Liang and Z. Liang and B. Martin and J. Meyer and S. Tanaka and Thompson, {P. D.} and J. Wang and Y. Yang and Y. Yang and J. Yu and S. Zimmermann and G. Aad and B. Abbott and J. Abdallah and Abdelalim, {A. A.} and A. Abdesselam and O. Abdinov and B. Abi and M. Abolins and H. Abramowicz and H. Abreu and E. Acerbi and Acharya, {B. S.} and Adams, {D. L.} and Addy, {T. N.} and J. Adelman and M. Aderholz and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, {J. A.} and M. Aharrouche and Ahlen, {S. P.} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and T. Akdogan and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alam, {M. S.} and Alam, {M. A.} and S. Albrand and M. Aleksa and Aleksandrov, {I. N.} and M. Aleppo and F. Alessandria and Noboru Sasao",
year = "2011",
doi = "10.1140/epjc/s10052-011-1636-z",
language = "English",
volume = "71",
journal = "Zeitschrift fur Physik C-Particles and Fields",
issn = "1434-6044",
publisher = "Springer New York",
number = "5",

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TY - JOUR

T1 - Measurements of underlying-event properties using neutral and charged particles in pp collisions at √s = 900 GeV and √s = 7 TeV with the ATLAS detector at the LHC

AU - The ATLAS Collaboration

AU - Liang, Z.

AU - Liang, Z.

AU - Martin, B.

AU - Meyer, J.

AU - Tanaka, S.

AU - Thompson, P. D.

AU - Wang, J.

AU - Yang, Y.

AU - Yang, Y.

AU - Yu, J.

AU - Zimmermann, S.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdelalim, A. A.

AU - Abdesselam, A.

AU - Abdinov, O.

AU - Abi, B.

AU - Abolins, M.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Acerbi, E.

AU - Acharya, B. S.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Aderholz, M.

AU - Adomeit, S.

AU - Adragna, P.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Aharrouche, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Akdogan, T.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alam, M. S.

AU - Alam, M. A.

AU - Albrand, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Aleppo, M.

AU - Alessandria, F.

AU - Sasao, Noboru

PY - 2011

Y1 - 2011

N2 - We present first measurements of charged and neutral particle-flow correlations in pp collisions using the ATLAS calorimeters.Data were collected in 2009 and 2010 at centre-of-mass energies of 900 GeV and 7 TeV.Events were selected using a minimum-bias trigger which required a charged particle in scintillation counters on either side of the interaction point.Particle flows, sensitive to the underlying event, are measured using clusters of energy in the ATLAS calorimeters, taking advantage of their fine granularity.No Monte Carlo generator used in this analysis can accurately describe the measurements.The results are independent of those based on charged particles measured by the ATLAS tracking systems and can be used to constrain the parameters of Monte Carlo generators.

AB - We present first measurements of charged and neutral particle-flow correlations in pp collisions using the ATLAS calorimeters.Data were collected in 2009 and 2010 at centre-of-mass energies of 900 GeV and 7 TeV.Events were selected using a minimum-bias trigger which required a charged particle in scintillation counters on either side of the interaction point.Particle flows, sensitive to the underlying event, are measured using clusters of energy in the ATLAS calorimeters, taking advantage of their fine granularity.No Monte Carlo generator used in this analysis can accurately describe the measurements.The results are independent of those based on charged particles measured by the ATLAS tracking systems and can be used to constrain the parameters of Monte Carlo generators.

UR - http://www.scopus.com/inward/record.url?scp=84879584098&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879584098&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-011-1636-z

DO - 10.1140/epjc/s10052-011-1636-z

M3 - Article

AN - SCOPUS:84879584098

VL - 71

JO - Zeitschrift fur Physik C-Particles and Fields

JF - Zeitschrift fur Physik C-Particles and Fields

SN - 1434-6044

IS - 5

M1 - 1636

ER -