Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

The CMS collaboration

doi:10.1088/1748-0221/15/10/P10002

Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

The CMS collaboration

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
Arab Academy for Science, Technology and Maritime Transport
Université libre de Bruxelles
Vrije Universiteit Brussel
Universidade do Estado do Rio de Janeiro
Ghent University
Université Paris-Saclay
Université catholique de Louvain
Centro Brasileiro de Pesquisas Físicas
Universidade Estadual de Campinas
Universidade Federal do Rio Grande do Sul
Universidade Federal de Mato Grosso do Sul
Universidade Federal de Pelotas
Universidade Estadual Paulista Júlio de Mesquita Filho
Universidade Federal do ABC
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
Beihang University
University of Illinois at Chicago
Tsinghua University
University of Virginia
CAS - Institute of High Energy Physics
University of Chinese Academy of Sciences
University of Florida
Massachusetts Institute of Technology
Peking University
University of Kansas
Sun Yat-Sen University
Fudan University
Zhejiang University
Universidad de los Andes Colombia
Universidad de Antioquia
University of Split
Ruder Boskovic Institute
Alikhanov Institute for Theoretical and Experimental Physics
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Escuela Politécnica Nacional
Universidad San Francisco de Quito
Academy of Scientific Research and Technology
The British University in Egypt
Ain Shams University
Al-Fayoum University
Saha Institute of Nuclear Physics
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Lappeenranta-Lahti University of Technology
Purdue University
Université de Haute-Alsace
Universite Claude Bernard Lyon 1
Georgian Technical University
Ivane Javakhishvili Tbilisi State University
RWTH Aachen University
Tata Institute of Fundamental Research
Indian Institute of Technology Madras
CERN
Erzincan University
German Electron Synchrotron
University of Hamburg
Isfahan University of Technology
Brandenburg University of Technology
Karlsruhe Institute of Technology
Lomonosov Moscow State University
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
National Technical University of Athens
University of Ioannina
Eötvös Loránd University
University of Debrecen
Assiut University
Wigner Research Centre for Physics
Institute for Nuclear Research
Eszterhazy Karoly University
Indian Institute of Science Bangalore
National Institute of Science Education and Research
Indian Institute of Technology Bhubaneswar
Institute of Physics Bhubaneswar
Panjab University
University of Nebraska-Lincoln
Indian Institute of Science Education and Research Pune
University of Delhi
Rice University
Shoolini University of Biotechnology and Management Sciences
Northwestern University
University of Hyderabad
Visva-Bharati University
Homi Bhabha National Institute
Indian Institute of Technology Bombay
Institute for Research for Fundamental Sciences
University of Science and Technology of Mazandaran
University College Dublin
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
University of Catania
University of Florence
University of Genoa
University of Milan - Bicocca
University of Basilicata
University of Naples Federico II
University of Padua
University of Pavia
University of Perugia
Scuola Normale Superiore di Pisa
University of Pisa
University of Rome La Sapienza
University of Turin
University of Eastern Piedmont
University of Trieste
Kyungpook National University
Sungkyunkwan University
Brown University
Chonnam National University
Hanyang University
Korea University
Seoul National University
Kyung Hee University
Sejong University
University of Seoul
Yonsei University
Riga Technical University
Vilnius University
University of Malaya
Universidad de Sonora
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Consejo Nacional de Ciencia y Tecnologia Mexico
Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
Universidad Autonoma de San Luis Potosi
University of Montenegro
The University of Auckland
University of Canterbury
Quaid-I-Azam University
AGH University of Krakow
National Centre for Nuclear Research
University of Warsaw
Warsaw University of Technology
Laboratório de Instrumentação e Física Experimental de Partículas
RAS - Saint Petersburg Nuclear Physics Institute
Peter the Great St. Petersburg Polytechnic University
RAS - Institute for Nuclear Research
Imperial College London
Moscow Institute of Physics and Technology
Moscow Engineering Physics Institute
RAS - P.N. Lebedev Physics Institute
University of Southampton
California Institute of Technology
Novosibirsk State University
RAS - Budker Institute of Nuclear Physics
Institute for High Energy Physics
Tomsk Polytechnic University
Tomsk State University
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
Universidad de Cantabria
University of Siena
University of Colombo
University of Ruhuna
Eastern University, Sri Lanka
Paul Scherrer Institute
University of Zurich
National Central University
National Taiwan University
University of California at San Diego
Chulalongkorn University
Cukurova University
Sirnak University
Near East University
Beykent University
Istanbul Aydin University
Mersin University
Piri Reis University
Adiyaman University
Middle East Technical University
Ozyegin University
Izmir Institute of Technology
Necmettin Erbakan University
Yozgat Bozok University
Bogazici University
Marmara University
Turkish National Defence University
Kafkas University
Istanbul Bilgi University
Istanbul Technical University
Hacettepe University
Istanbul University
NASU - Institute for Single Crystals
NASU - Kharkov Institute of Physics and Technology
University of Bristol
Durham University
Monash University
Brunel University London
Baylor University
Catholic University of America
University of Alabama
Boston University
Bethel University
Karamanoglu Mehmetbey University
University of California at Davis
University of California at Los Angeles
University of California at Riverside
University of Wisconsin-Madison
University of California at Santa Barbara
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Florida International University
Florida State University
Florida Institute of Technology
University of Iowa
Bingol University
Sinop University
Mimar Sinan Guzel Sanatlar University
Nanjing Normal University
Johns Hopkins University
Kansas State University
Lawrence Livermore National Laboratory
University of Maryland, College Park
University of Minnesota Twin Cities
University of Mississippi
SUNY Buffalo
Northeastern University
University of Notre Dame
Ohio State University
Princeton University
Purdue University Northwest
University of Rochester
Rutgers - The State University of New Jersey, New Brunswick
University of Tennessee, Knoxville
Texas A&M University at Qatar
Texas Tech University
Vanderbilt University
Wayne State University
Suez University
Zewail City of Science and Technology

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution to the signal of the increased number of out-of-time interactions per beam crossing following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015–2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.

Original language	English
Article number	P10002
Journal	Journal of Instrumentation
Volume	15
Issue number	10
DOIs	https://doi.org/10.1088/1748-0221/15/10/P10002
State	Published - Oct 2020
Externally published	Yes

Keywords

Calibration
Cluster finding
Fitting methods
Large detector-systems performance
Pattern recognition

Access to Document

10.1088/1748-0221/15/10/P10002

Cite this

@article{924ba0ce13904ab38695eb280fac2ccf,

title = "Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions",

abstract = "A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution to the signal of the increased number of out-of-time interactions per beam crossing following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015–2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.",

keywords = "Calibration, Cluster finding, Fitting methods, Large detector-systems performance, Pattern recognition",

author = "\{The CMS collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and T. Bergauer and M. Dragicevic and J. Er{\"o} and \{Escalante Del Valle\}, A. and R. Fr{\"u}hwirth and M. Jeitler and N. Krammer and L. Lechner and D. Liko and T. Madlener and I. Mikulec and Pitters, \{F. M.\} and N. Rad and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and M. Zarucki and V. Chekhovsky and A. Litomin and V. Makarenko and \{Suarez Gonzalez\}, J. and Darwish, \{M. R.\} and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and T. Kello and A. Lelek and M. Pieters and \{Rejeb Sfar\}, H. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Putte\}, S. and \{Van Remortel\}, N. and F. Blekman and Bols, \{E. S.\} and Chhibra, \{S. S.\} and J. D'Hondt and \{De Clercq\}, J. and D. Lontkovskyi and S. Lowette and I. Marchesini and S. Moortgat and \{Sanchez Rosas\}, \{L. J.\}",

note = "Publisher Copyright: {\textcopyright} 2020 CERN for the benefit of the CMS collaboration.",

year = "2020",

month = oct,

doi = "10.1088/1748-0221/15/10/P10002",

language = "English",

volume = "15",

journal = "Journal of Instrumentation",

issn = "1748-0221",

number = "10",

}

TY - JOUR

T1 - Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

AU - The CMS collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Frühwirth, R.

AU - Jeitler, M.

AU - Krammer, N.

AU - Lechner, L.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Pitters, F. M.

AU - Rad, N.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Litomin, A.

AU - Makarenko, V.

AU - Suarez Gonzalez, J.

AU - Darwish, M. R.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Kello, T.

AU - Lelek, A.

AU - Pieters, M.

AU - Rejeb Sfar, H.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Putte, S.

AU - Van Remortel, N.

AU - Blekman, F.

AU - Bols, E. S.

AU - Chhibra, S. S.

AU - D'Hondt, J.

AU - De Clercq, J.

AU - Lontkovskyi, D.

AU - Lowette, S.

AU - Marchesini, I.

AU - Moortgat, S.

AU - Sanchez Rosas, L. J.

PY - 2020/10

Y1 - 2020/10

N2 - A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution to the signal of the increased number of out-of-time interactions per beam crossing following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015–2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.

AB - A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution to the signal of the increased number of out-of-time interactions per beam crossing following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015–2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.

KW - Calibration

KW - Cluster finding

KW - Fitting methods

KW - Large detector-systems performance

KW - Pattern recognition

UR - https://www.scopus.com/pages/publications/85096494444

U2 - 10.1088/1748-0221/15/10/P10002

DO - 10.1088/1748-0221/15/10/P10002

M3 - Article

AN - SCOPUS:85096494444

SN - 1748-0221

VL - 15

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 10

M1 - P10002

ER -

Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this