Jet energy calibration at the LHC
Abstract
In this study, jets are one of the most prominent physics signatures of high energy proton–proton (p–p) collisions at the Large Hadron Collider (LHC). They are key physics objects for precision measurements and searches for new phenomena. This review provides an overview of the reconstruction and calibration of jets at the LHC during its first Run. ATLAS and CMS developed different approaches for the reconstruction of jets, but use similar methods for the energy calibration. ATLAS reconstructs jets utilizing input signals from their calorimeters and use charged particle tracks to refine their energy measurement and suppress the effects of multiple p–p interactions (pileup). CMS, instead, combines calorimeter and tracking information to build jets from particle flow objects. Jets are calibrated using Monte Carlo (MC) simulations and a residual in situ calibration derived from collision data is applied to correct for the differences in jet response between data and Monte Carlo.
- Authors:
-
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1263408
- Report Number(s):
- SLAC-PUB-16630
Journal ID: ISSN 0217-751X; arXiv:1509.05459
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Modern Physics A
- Additional Journal Information:
- Journal Volume: 30; Journal Issue: 31; Journal ID: ISSN 0217-751X
- Publisher:
- World Scientific
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; experiment-HEP; HEPEX; jets; jet energy scale
Citation Formats
Schwartzman, Ariel. Jet energy calibration at the LHC. United States: N. p., 2015.
Web. doi:10.1142/S0217751X15460021.
Schwartzman, Ariel. Jet energy calibration at the LHC. United States. https://doi.org/10.1142/S0217751X15460021
Schwartzman, Ariel. Tue .
"Jet energy calibration at the LHC". United States. https://doi.org/10.1142/S0217751X15460021. https://www.osti.gov/servlets/purl/1263408.
@article{osti_1263408,
title = {Jet energy calibration at the LHC},
author = {Schwartzman, Ariel},
abstractNote = {In this study, jets are one of the most prominent physics signatures of high energy proton–proton (p–p) collisions at the Large Hadron Collider (LHC). They are key physics objects for precision measurements and searches for new phenomena. This review provides an overview of the reconstruction and calibration of jets at the LHC during its first Run. ATLAS and CMS developed different approaches for the reconstruction of jets, but use similar methods for the energy calibration. ATLAS reconstructs jets utilizing input signals from their calorimeters and use charged particle tracks to refine their energy measurement and suppress the effects of multiple p–p interactions (pileup). CMS, instead, combines calorimeter and tracking information to build jets from particle flow objects. Jets are calibrated using Monte Carlo (MC) simulations and a residual in situ calibration derived from collision data is applied to correct for the differences in jet response between data and Monte Carlo.},
doi = {10.1142/S0217751X15460021},
journal = {International Journal of Modern Physics A},
number = 31,
volume = 30,
place = {United States},
year = {Tue Nov 10 00:00:00 EST 2015},
month = {Tue Nov 10 00:00:00 EST 2015}
}
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