Event shapes and azimuthal correlations in Z+jets events in pp collisions at s=7 TeV

CMS Collaboration

doi:10.1016/j.physletb.2013.04.025

Event shapes and azimuthal correlations in Z+jets events in pp collisions at s=7 TeV

CMS Collaboration

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

74 Citations (Scopus)

Abstract

Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at s=7 TeV correspond to an integrated luminosity of 5.0 fb⁻¹. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z+1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models.

Original language	English
Pages (from-to)	238-261
Number of pages	24
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	722
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2013.04.025
Publication status	Published - 24 May 2013
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2013 CERN

Funding

We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MEYS (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER , SF0690030s09 and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON , RosAtom , RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter , IPST and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MEYS (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter, IPST and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).

Funders	Funder number
Not added	ST/H00081X/2
CPAN
MON
MSES
MSHE
MSTD
MoER	SF0690030s09
Swiss Funding Agencies
TUBITAK
UASLP-FAI
National Science Foundation	1151640, 0969555, 1205960, 1211067
U.S. Department of Energy
Hispanics in Philanthropy
Human Growth Foundation
California Department of Fish and Wildlife
Western Carolina University
Ministry of Science and Technology
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
California Earthquake Authority
Marketing Science Institute
Center for African Studies
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Seventh Framework Programme	261323
Santa Fe Institute
Louisiana Academy of Sciences
Rochester Academy of Science
National Research Foundation
CERN
Thailand Center of Excellence in Physics
College of Arts and Sciences, University of Nebraska-Lincoln
Institute for the Promotion of Teaching Science and Technology
Science and Technology Facilities Council	ST/L00609X/1, ST/J004901/1, ST/K001256/1, ST/K003844/1, GRIDPP, ST/H000925/1, ST/F007434/1, ST/I505580/1, ST/I505572/1, ST/I005912/1, ST/J005665/1, ST/K001604/1, ST/K001639/1, ST/F007094/1
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India
Ministry of Science and Innovation, New Zealand
Science Foundation Ireland
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	144921, 141847, 146398, 138111
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Research Promotion Foundation
National Science Council
Fundação para a Ciência e a Tecnologia
Russian Foundation for Basic Research
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Academy of Finland
Bundesministerium für Bildung und Forschung
Austrian Science Fund
Fonds De La Recherche Scientifique - FNRS
Russian Academy of Sciences
Fonds Wetenschappelijk Onderzoek
Consejo Nacional de Ciencia y Tecnología
Ministerio de Economía y Competitividad
Ministry of Education, Youth and Science
General Secretariat for Research and Technology
Hungarian Scientific Research Fund
Conselho Nacional de Desenvolvimento Científico e Tecnológico
National Research Foundation of Korea
Joint Institute for Nuclear Research
Nemzeti Kutatási és Technológiai Hivatal
Instituto Nazionale di Fisica Nucleare
Medical Engineering Centre, King’s College London
National Science and Technology Development Agency	Thailand
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Ministry of Science and Technology, Taiwan
National Academy of Sciences of Ukraine
Centre National de la Recherche Scientifique
Institute for Research in Fundamental Sciences
Bundesministerium für Bildung und Frauen
Secretaría de Estado de Investigación, Desarrollo e Innovación
Bundesministerium für Wissenschaft und Forschung
European Regional Development Fund
State Atomic Energy Corporation ROSATOM
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
Pakistan Atomic Energy Commission
Department of Science and Technology, Government of West Bengal
Fundació Catalana de Trasplantament
Institut National de Physique Nucléaire et de Physique des Particules

Keywords

CMS
Event shape
Physics
QCD

Access to Document

10.1016/j.physletb.2013.04.025

Cite this

@article{8b184753ae6245cea9919953c223201d,

title = "Event shapes and azimuthal correlations in Z+jets events in pp collisions at s=7 TeV",

abstract = "Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at s=7 TeV correspond to an integrated luminosity of 5.0 fb−1. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z+1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models.",

keywords = "CMS, Event shape, Physics, QCD",

author = "{CMS Collaboration} and S. Chatrchyan and V. Khachatryan and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and E. Aguilo and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, {V. M.} and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and V. Kn{\"u}nz and M. Krammer and I. Kr{\"a}tschmer and D. Liko and I. Mikulec and M. Pernicka and D. Rabady and B. Rahbaran and C. Rohringer and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and W. Waltenberger and Wulz, {C. E.} and V. Mossolov and N. Shumeiko and {Suarez Gonzalez}, J. and M. Bansal and S. Bansal and T. Cornelis and {De Wolf}, {E. A.} and X. Janssen and S. Luyckx and L. Mucibello and S. Ochesanu and B. Roland and R. Rougny and M. Selvaggi and {Van Haevermaet}, H. and {Van Mechelen}, P. and {Van Remortel}, N. and A. Cakir",

note = "Publisher Copyright: {\textcopyright} 2013 CERN",

year = "2013",

month = may,

day = "24",

doi = "10.1016/j.physletb.2013.04.025",

language = "English",

volume = "722",

pages = "238--261",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "4-5",

}

TY - JOUR

T1 - Event shapes and azimuthal correlations in Z+jets events in pp collisions at s=7 TeV

AU - CMS Collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Aguilo, E.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Knünz, V.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Mikulec, I.

AU - Pernicka, M.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, C.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Luyckx, S.

AU - Mucibello, L.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Selvaggi, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Cakir, A.

PY - 2013/5/24

Y1 - 2013/5/24

N2 - Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at s=7 TeV correspond to an integrated luminosity of 5.0 fb−1. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z+1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models.

AB - Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at s=7 TeV correspond to an integrated luminosity of 5.0 fb−1. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z+1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models.

KW - CMS

KW - Event shape

KW - Physics

KW - QCD

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U2 - 10.1016/j.physletb.2013.04.025

DO - 10.1016/j.physletb.2013.04.025

M3 - Article

AN - SCOPUS:85035774348

SN - 0370-2693

VL - 722

SP - 238

EP - 261

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

Event shapes and azimuthal correlations in Z+jets events in pp collisions at s=7 TeV

Abstract

Bibliographical note

Funding

Keywords

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