Observation of proton-tagged, central (semi)exclusive production of high-mass lepton pairs in pp collisions at 13 TeV with the CMS-TOTEM precision proton spectrometer

The CMS collaboration; The TOTEM collaboration

doi:10.1007/JHEP07(2018)153

Observation of proton-tagged, central (semi)exclusive production of high-mass lepton pairs in pp collisions at 13 TeV with the CMS-TOTEM precision proton spectrometer

The CMS collaboration
, The TOTEM collaboration

Fizik Mühendisliği Bölümü

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
Vrije Universiteit Brussel
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Ghent University
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Beihang University
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Peking University
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CERN
German Electron Synchrotron
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Demokritos National Centre for Scientific Research
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Panjab University
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Indian Institute of Technology Madras
Homi Bhabha National Institute
Tata Institute of Fundamental Research
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Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
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SLAC National Accelerator Laboratory

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

65 Atıf (Scopus)

Özet

The process pp → pℓ⁺ℓ⁻p^(*), with ℓ⁺ℓ⁻ a muon or an electron pair produced at midrapidity with mass larger than 110 GeV, has been observed for the first time at the LHC in pp collisions at s=13 TeV. One of the two scattered protons is measured in the CMS-TOTEM precision proton spectrometer (CT-PPS), which operated for the first time in 2016. The second proton either remains intact or is excited and then dissociates into a low-mass state p^*, which is undetected. The measurement is based on an integrated luminosity of 9.4 fb⁻¹ collected during standard, high-luminosity LHC operation. A total of 12 μ⁺μ⁻ and 8 e⁺e⁻ pairs with m(ℓ⁺ℓ⁻) > 110 GeV, and matching forward proton kinematics, are observed, with expected backgrounds of 1.49 ± 0.07 (stat) ± 0.53 (syst) and 2.36 ± 0.09 (stat) ± 0.47 (syst), respectively. This corresponds to an excess of more than five standard deviations over the expected background. The present result constitutes the first observation of proton-tagged γγ collisions at the electroweak scale. This measurement also demonstrates that CT-PPS performs according to the design specifications.[Figure not available: see fulltext.].

Orijinal dil	İngilizce
Makale numarası	153
Dergi	Journal of High Energy Physics
Hacim	2018
Basın numarası	7
DOI'lar	https://doi.org/10.1007/JHEP07(2018)153
Yayın durumu	Yayınlandı - 1 Tem 2018

Bibliyografik not

Publisher Copyright:
© 2018, The Author(s).

Finansman

computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS and TOTEM detectors provided by the following funding agencies: the Austrian Federal Ministry of Science, Research and Economy and the Austrian Science Fund; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport, and the Croatian Science Foundation; the Research Promotion Foundation, Cyprus; the Secretariat for Higher Education, Science, Technology and Innovation, Ecuador; the Ministry of Education and Research, Estonian Research Council via IUT23-4 and IUT23-6 and European Regional Development Fund, Estonia; the Academy of Finland, Finnish Ministry of Education and Culture, Helsinki Institute of Physics, the Magnus Ehrnrooth Foundation, the Waldemar von Frenckell Foundation, and the Finnish Academy of Science and Letters (The Vilho Yrjö and Kalle Väisälä Fund); the Institut National de Physique Nucléaire et de Physique des Particules / CNRS, and Commissariat à l’Énergie Atomique et aux Énergies Alternatives / CEA, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientific Research Foundation, and National Innovation Office, the OTKA NK 101438, and the EFOP-3.6.1-16-2016-00001 grant (Hungary); the Department of Atomic Energy and the Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Ministry of Science, ICT and Future Planning, and National Research Foundation (NRF), Republic of Korea; the Lithuanian Academy of Sciences; the Ministry of Education, and University of Malaya (Malaysia); the Mexican Funding Agencies (BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science Center, Poland; the Fundacão para a Ciência e a Tecnologia, Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation, the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, the Russian Foundation for Basic Research and the Russian Competitiveness Program of NRNU “MEPhI”; the Ministry of Education, Science and Technological Development of Serbia; the Secretaría de Estado de Investigación, Desarrollo e Innovación, Programa Consolider-Ingenio 2010, Plan de Cien-cia, Tecnología e Innovación 2013-2017 del Principado de Asturias and Fondo Europeo de Desarrollo Regional, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the Ministry of Science and Technology, Taipei; the Thailand Center of Excellence in Physics, the Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the National Open Access, Copyright CERN, for the benefit of the CMS and TOTEM Collaboration. Article funded by SCOAP3. Academy of Sciences of Ukraine, and State Fund for Fundamental Researches, Ukraine; the Science and Technology Facilities Council, U.K.; the U.S. Department of Energy, and the U.S. National Science Foundation.

Finansörler	Finansör numarası
???publication-publication-funding-organisation-not-added???	ST/I505580/1, ST/K003542/1, ST/M004775/1, ST/L005603/1, ST/N001273/1, ST/I003622/1, ST/J005479/1, ST/N000242/1
Academy of Sciences of Ukraine
Austrian Federal Ministry of Science
Desarrollo e Innovación
EU-ESF
Excellence of Science	30820817
Helsinki Institute of Physics
Hungarian Ministry of Human Capacities
Institute for Studies in Theoretical Physics and Mathematics
MSMT CR of the Czech Republic
Mexican Funding Agencies
National Innovation Office
National Scientific Research Foundation
Nylands nation vid Helsingfors universitet
Programa Severo Ochoa del Princi-pado de Asturias
Republic of Korea
Russian Competitiveness Program of NRNU
Secretariat for Higher Education, Science, Technology and Innovation
Secretaría de Estado de Investigación
State Fund for Fundamental Researches
National Science Foundation	1151640
U.S. Department of Energy
Alfred P. Sloan Foundation
Welch Foundation	C-1845
Alexander von Humboldt-Stiftung
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Qatar National Research Fund
Ministry of Education and Science
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Horizon 2020 Framework Programme
Weston Havens Foundation
CERN
Thailand Center of Excellence in Physics
Institute for the Promotion of Teaching Science and Technology
Kanton Zürich
Science and Technology Facilities Council	ST/F007434/1, ST/J004871/1
European Commission
European Research Council
National Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
Department of Atomic Energy, Government of India
Taighde Éireann - Research Ireland
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Research Promotion Foundation
Ministerstvo Školství, Mládeže a Tělovýchovy
Fundacja na rzecz Nauki Polskiej
Fundação para a Ciência e a Tecnologia
Russian Foundation for Basic Research
Eesti Teadusagentuur	IUT23-6, IUT23-4
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Academy of Finland
Suomalainen Tiedeakatemia
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Fonds De La Recherche Scientifique - FNRS
Russian Academy of Sciences
Ministry of Education
Belgian Federal Science Policy Office
Chulalongkorn University
Eidgenössische Technische Hochschule Zürich
Opetus- ja Kulttuuriministeriö
Fonds Wetenschappelijk Onderzoek
Agentschap voor Innovatie door Wetenschap en Technologie
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture
Consejo Nacional de Ciencia y Tecnología
Ministry of Education and Science of the Russian Federation
General Secretariat for Research and Technology
Haridus- ja Teadusministeerium
Ministry of Business, Innovation and Employment
Hungarian Scientific Research Fund	NK 101438, EFOP-3.6.1-16-2016-00001
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science, ICT and Future Planning
Ministry of Science and Technology
National Research Foundation of Korea
Joint Institute for Nuclear Research
Magyar Tudományos Akadémia
Instituto Nazionale di Fisica Nucleare
A.G. Leventis Foundation
Magnus Ehrnroothin Säätiö
National Science and Technology Development Agency
Paul Scherrer Institut
Narodowe Centrum Nauki	2014/15/B/ST2/03998, 2012/07/E/ST2/01406, 2015/19/B/ST2/02861, 2014/14/M/ST2/00428, 2014/13/B/ST2/02543
Universiti Malaya
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
Hrvatska Zaklada za Znanost
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Centre National de la Recherche Scientifique
Universidad Autónoma de San Luis Potosí
Ministry of Education and Science
Benemérita Universidad Autónoma de Puebla
Universität Zürich
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Ministarstvo Znanosti, Obrazovanja i Sporta
Horizon 2020	675440
Lietuvos Mokslų Akademija
European Regional Development Fund
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
Pakistan Atomic Energy Commission
Institut National de Physique Nucléaire et de Physique des Particules
Federal Agency of Atomic Energy of the Russian Federation
Sociedad Española de Reumatología
Waldemar von Frenckells Stiftelse
Board of the Swiss Federal Institutes of Technology
Laboratorio Nacional de Supercómputo del Sureste de Mexico

Belgeye Erişim

10.1007/JHEP07(2018)153

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@article{7389c14e9d194433a64ec81c24a4c895,

title = "Observation of proton-tagged, central (semi)exclusive production of high-mass lepton pairs in pp collisions at 13 TeV with the CMS-TOTEM precision proton spectrometer",

abstract = "The process pp → pℓ+ℓ−p(*), with ℓ+ℓ− a muon or an electron pair produced at midrapidity with mass larger than 110 GeV, has been observed for the first time at the LHC in pp collisions at s=13 TeV. One of the two scattered protons is measured in the CMS-TOTEM precision proton spectrometer (CT-PPS), which operated for the first time in 2016. The second proton either remains intact or is excited and then dissociates into a low-mass state p*, which is undetected. The measurement is based on an integrated luminosity of 9.4 fb−1 collected during standard, high-luminosity LHC operation. A total of 12 μ+μ− and 8 e+e− pairs with m(ℓ+ℓ−) > 110 GeV, and matching forward proton kinematics, are observed, with expected backgrounds of 1.49 ± 0.07 (stat) ± 0.53 (syst) and 2.36 ± 0.09 (stat) ± 0.47 (syst), respectively. This corresponds to an excess of more than five standard deviations over the expected background. The present result constitutes the first observation of proton-tagged γγ collisions at the electroweak scale. This measurement also demonstrates that CT-PPS performs according to the design specifications.[Figure not available: see fulltext.].",

keywords = "Forward physics, Hadron-Hadron scattering (experiments), Photon production, proton-proton scattering",

author = "\{The CMS collaboration\} and \{The TOTEM collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and \{Escalante Del Valle\}, A. and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and J. Grossmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and E. Pree and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, \{C. E.\} and M. Zarucki and V. Chekhovsky and V. Mossolov and \{Suarez Gonzalez\}, J. and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and J. Lauwers and M. Pieters and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Abu Zeid\}, S. and A. Cakir",

note = "Publisher Copyright: {\textcopyright} 2018, The Author(s).",

year = "2018",

month = jul,

day = "1",

doi = "10.1007/JHEP07(2018)153",

language = "English",

volume = "2018",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

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TY - JOUR

T1 - Observation of proton-tagged, central (semi)exclusive production of high-mass lepton pairs in pp collisions at 13 TeV with the CMS-TOTEM precision proton spectrometer

AU - The CMS collaboration

AU - The TOTEM collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Grossmann, J.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Pree, E.

AU - Rad, N.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wittmann, J.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Lauwers, J.

AU - Pieters, M.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Abu Zeid, S.

AU - Cakir, A.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - The process pp → pℓ+ℓ−p(*), with ℓ+ℓ− a muon or an electron pair produced at midrapidity with mass larger than 110 GeV, has been observed for the first time at the LHC in pp collisions at s=13 TeV. One of the two scattered protons is measured in the CMS-TOTEM precision proton spectrometer (CT-PPS), which operated for the first time in 2016. The second proton either remains intact or is excited and then dissociates into a low-mass state p*, which is undetected. The measurement is based on an integrated luminosity of 9.4 fb−1 collected during standard, high-luminosity LHC operation. A total of 12 μ+μ− and 8 e+e− pairs with m(ℓ+ℓ−) > 110 GeV, and matching forward proton kinematics, are observed, with expected backgrounds of 1.49 ± 0.07 (stat) ± 0.53 (syst) and 2.36 ± 0.09 (stat) ± 0.47 (syst), respectively. This corresponds to an excess of more than five standard deviations over the expected background. The present result constitutes the first observation of proton-tagged γγ collisions at the electroweak scale. This measurement also demonstrates that CT-PPS performs according to the design specifications.[Figure not available: see fulltext.].

AB - The process pp → pℓ+ℓ−p(*), with ℓ+ℓ− a muon or an electron pair produced at midrapidity with mass larger than 110 GeV, has been observed for the first time at the LHC in pp collisions at s=13 TeV. One of the two scattered protons is measured in the CMS-TOTEM precision proton spectrometer (CT-PPS), which operated for the first time in 2016. The second proton either remains intact or is excited and then dissociates into a low-mass state p*, which is undetected. The measurement is based on an integrated luminosity of 9.4 fb−1 collected during standard, high-luminosity LHC operation. A total of 12 μ+μ− and 8 e+e− pairs with m(ℓ+ℓ−) > 110 GeV, and matching forward proton kinematics, are observed, with expected backgrounds of 1.49 ± 0.07 (stat) ± 0.53 (syst) and 2.36 ± 0.09 (stat) ± 0.47 (syst), respectively. This corresponds to an excess of more than five standard deviations over the expected background. The present result constitutes the first observation of proton-tagged γγ collisions at the electroweak scale. This measurement also demonstrates that CT-PPS performs according to the design specifications.[Figure not available: see fulltext.].

KW - Forward physics

KW - Hadron-Hadron scattering (experiments)

KW - Photon production

KW - proton-proton scattering

UR - https://www.scopus.com/pages/publications/85051832717

U2 - 10.1007/JHEP07(2018)153

DO - 10.1007/JHEP07(2018)153

M3 - Article

AN - SCOPUS:85051832717

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 153

ER -

Observation of proton-tagged, central (semi)exclusive production of high-mass lepton pairs in pp collisions at 13 TeV with the CMS-TOTEM precision proton spectrometer

Özet

Bibliyografik not

Finansman

Belgeye Erişim

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