A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, R. Aben, O. S. AbouZeid, N. L. Abraham, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulaiti, B. S. Acharya, L. Adamczyk, D. L. Adams, J. Adelman, S. Adomeit, T. Adye, A. A. Affolder & 31 others T. Agatonovic-Jovin, J. Agricola, J. A. Aguilar-Saavedra, S. P. Ahlen, F. Ahmadov, G. Aielli, H. Akerstedt, T. P.A. Åkesson, A. V. Akimov, G. L. Alberghi, J. Albert, S. Albrand, M. J.Alconada Verzini, M. Aleksa, I. N. Aleksandrov, C. Alexa, G. Alexander, T. Alexopoulos, M. Alhroob, B. Ali, M. Aliev, G. Alimonti, J. Alison, S. P. Alkire, B. M.M. Allbrooke, E. Cheu, K. A. Johns, J. P. Rutherfoord, M. A. Shupe, E. W. Varnes, ATLAS Collaboration

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Abstract

A measurement of the calorimeter response to isolated charged hadrons in the ATLAS detector at the LHC is presented. This measurement is performed with 3.2 nb- 1 of proton–proton collision data at s=7 TeV from 2010 and 0.1 nb- 1 of data at s=8 TeV from 2012. A number of aspects of the calorimeter response to isolated hadrons are explored. After accounting for energy deposited by neutral particles, there is a 5% discrepancy in the modelling, using various sets of Geant4 hadronic physics models, of the calorimeter response to isolated charged hadrons in the central calorimeter region. The description of the response to anti-protons at low momenta is found to be improved with respect to previous analyses. The electromagnetic and hadronic calorimeters are also examined separately, and the detector simulation is found to describe the response in the hadronic calorimeter well. The jet energy scale uncertainty and correlations in scale between jets of different momenta and pseudorapidity are derived based on these studies. The uncertainty is 2–5% for jets with transverse momenta above 2 TeV, where this method provides the jet energy scale uncertainty for ATLAS.

LanguageEnglish (US)
Article number26
JournalEuropean Physical Journal C
Volume77
Issue number1
DOIs
StatePublished - Jan 1 2017

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Hadrons
Calorimeters
hadrons
calorimeters
Detectors
collisions
detectors
Momentum
Protons
protons
energy
momentum
neutral particles
transverse momentum
Uncertainty
Physics
electromagnetism
physics

ASJC Scopus subject areas

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

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A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector. / Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Abeloos, B.; Aben, R.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B. S.; Adamczyk, L.; Adams, D. L.; Adelman, J.; Adomeit, S.; Adye, T.; Affolder, A. A.; Agatonovic-Jovin, T.; Agricola, J.; Aguilar-Saavedra, J. A.; Ahlen, S. P.; Ahmadov, F.; Aielli, G.; Akerstedt, H.; Åkesson, T. P.A.; Akimov, A. V.; Alberghi, G. L.; Albert, J.; Albrand, S.; Verzini, M. J.Alconada; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexander, G.; Alexopoulos, T.; Alhroob, M.; Ali, B.; Aliev, M.; Alimonti, G.; Alison, J.; Alkire, S. P.; Allbrooke, B. M.M.; Cheu, E.; Johns, K. A.; Rutherfoord, J. P.; Shupe, M. A.; Varnes, E. W.; ATLAS Collaboration.

In: European Physical Journal C, Vol. 77, No. 1, 26, 01.01.2017.

Research output: Contribution to journalArticle

Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Aben, R, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H, Abreu, R, Abulaiti, Y, Acharya, BS, Adamczyk, L, Adams, DL, Adelman, J, Adomeit, S, Adye, T, Affolder, AA, Agatonovic-Jovin, T, Agricola, J, Aguilar-Saavedra, JA, Ahlen, SP, Ahmadov, F, Aielli, G, Akerstedt, H, Åkesson, TPA, Akimov, AV, Alberghi, GL, Albert, J, Albrand, S, Verzini, MJA, Aleksa, M, Aleksandrov, IN, Alexa, C, Alexander, G, Alexopoulos, T, Alhroob, M, Ali, B, Aliev, M, Alimonti, G, Alison, J, Alkire, SP, Allbrooke, BMM, Cheu, E, Johns, KA, Rutherfoord, JP, Shupe, MA, Varnes, EW & ATLAS Collaboration 2017, 'A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector' European Physical Journal C, vol. 77, no. 1, 26. DOI: 10.1140/epjc/s10052-016-4580-0
Aaboud, M. ; Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdinov, O. ; Abeloos, B. ; Aben, R. ; AbouZeid, O. S. ; Abraham, N. L. ; Abramowicz, H. ; Abreu, H. ; Abreu, R. ; Abulaiti, Y. ; Acharya, B. S. ; Adamczyk, L. ; Adams, D. L. ; Adelman, J. ; Adomeit, S. ; Adye, T. ; Affolder, A. A. ; Agatonovic-Jovin, T. ; Agricola, J. ; Aguilar-Saavedra, J. A. ; Ahlen, S. P. ; Ahmadov, F. ; Aielli, G. ; Akerstedt, H. ; Åkesson, T. P.A. ; Akimov, A. V. ; Alberghi, G. L. ; Albert, J. ; Albrand, S. ; Verzini, M. J.Alconada ; Aleksa, M. ; Aleksandrov, I. N. ; Alexa, C. ; Alexander, G. ; Alexopoulos, T. ; Alhroob, M. ; Ali, B. ; Aliev, M. ; Alimonti, G. ; Alison, J. ; Alkire, S. P. ; Allbrooke, B. M.M. ; Cheu, E. ; Johns, K. A. ; Rutherfoord, J. P. ; Shupe, M. A. ; Varnes, E. W. ; ATLAS Collaboration. / A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector. In: European Physical Journal C. 2017 ; Vol. 77, No. 1.
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AU - Aaboud,M.

AU - Aad,G.

AU - Abbott,B.

AU - Abdallah,J.

AU - Abdinov,O.

AU - Abeloos,B.

AU - Aben,R.

AU - AbouZeid,O. S.

AU - Abraham,N. L.

AU - Abramowicz,H.

AU - Abreu,H.

AU - Abreu,R.

AU - Abulaiti,Y.

AU - Acharya,B. S.

AU - Adamczyk,L.

AU - Adams,D. L.

AU - Adelman,J.

AU - Adomeit,S.

AU - Adye,T.

AU - Affolder,A. A.

AU - Agatonovic-Jovin,T.

AU - Agricola,J.

AU - Aguilar-Saavedra,J. A.

AU - Ahlen,S. P.

AU - Ahmadov,F.

AU - Aielli,G.

AU - Akerstedt,H.

AU - Åkesson,T. P.A.

AU - Akimov,A. V.

AU - Alberghi,G. L.

AU - Albert,J.

AU - Albrand,S.

AU - Verzini,M. J.Alconada

AU - Aleksa,M.

AU - Aleksandrov,I. N.

AU - Alexa,C.

AU - Alexander,G.

AU - Alexopoulos,T.

AU - Alhroob,M.

AU - Ali,B.

AU - Aliev,M.

AU - Alimonti,G.

AU - Alison,J.

AU - Alkire,S. P.

AU - Allbrooke,B. M.M.

AU - Cheu,E.

AU - Johns,K. A.

AU - Rutherfoord,J. P.

AU - Shupe,M. A.

AU - Varnes,E. W.

AU - ATLAS Collaboration

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N2 - A measurement of the calorimeter response to isolated charged hadrons in the ATLAS detector at the LHC is presented. This measurement is performed with 3.2 nb- 1 of proton–proton collision data at s=7 TeV from 2010 and 0.1 nb- 1 of data at s=8 TeV from 2012. A number of aspects of the calorimeter response to isolated hadrons are explored. After accounting for energy deposited by neutral particles, there is a 5% discrepancy in the modelling, using various sets of Geant4 hadronic physics models, of the calorimeter response to isolated charged hadrons in the central calorimeter region. The description of the response to anti-protons at low momenta is found to be improved with respect to previous analyses. The electromagnetic and hadronic calorimeters are also examined separately, and the detector simulation is found to describe the response in the hadronic calorimeter well. The jet energy scale uncertainty and correlations in scale between jets of different momenta and pseudorapidity are derived based on these studies. The uncertainty is 2–5% for jets with transverse momenta above 2 TeV, where this method provides the jet energy scale uncertainty for ATLAS.

AB - A measurement of the calorimeter response to isolated charged hadrons in the ATLAS detector at the LHC is presented. This measurement is performed with 3.2 nb- 1 of proton–proton collision data at s=7 TeV from 2010 and 0.1 nb- 1 of data at s=8 TeV from 2012. A number of aspects of the calorimeter response to isolated hadrons are explored. After accounting for energy deposited by neutral particles, there is a 5% discrepancy in the modelling, using various sets of Geant4 hadronic physics models, of the calorimeter response to isolated charged hadrons in the central calorimeter region. The description of the response to anti-protons at low momenta is found to be improved with respect to previous analyses. The electromagnetic and hadronic calorimeters are also examined separately, and the detector simulation is found to describe the response in the hadronic calorimeter well. The jet energy scale uncertainty and correlations in scale between jets of different momenta and pseudorapidity are derived based on these studies. The uncertainty is 2–5% for jets with transverse momenta above 2 TeV, where this method provides the jet energy scale uncertainty for ATLAS.

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JO - European Physical Journal C

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