Emergence of Long-Range Angular Correlations in Low-Multiplicity Proton-Proton Collisions

ALICE Collaboration

doi:10.1103/PhysRevLett.132.172302

Emergence of Long-Range Angular Correlations in Low-Multiplicity Proton-Proton Collisions

ALICE Collaboration

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

Abstract

This Letter presents the measurement of near-side associated per-trigger yields, denoted ridge yields, from the analysis of angular correlations of charged hadrons in proton-proton collisions at s=13 TeV. Long-range ridge yields are extracted for pairs of charged particles with a pseudorapidity difference of 1.4<|Δη|<1.8 and a transverse momentum of 1<pT<2 GeV/c, as a function of the charged-particle multiplicity measured at midrapidity. This Letter extends the measurements of the ridge yield to the low multiplicity region, where in hadronic collisions it is typically conjectured that a strongly interacting medium is unlikely to be formed. The precision of the new low multiplicity results allows for the first direct quantitative comparison with the results obtained in e+e- collisions at s=91 GeV and s=183-209 GeV, where initial-state effects such as preequilibrium dynamics and collision geometry are not expected to play a role. In the multiplicity range.

Original language	English
Article number	172302
Journal	Physical Review Letters
Volume	132
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.132.172302
Publication status	Published - 26 Apr 2024

Bibliographical note

Publisher Copyright:
© 2024 American Physical Society. All rights reserved.

Funding

The ALICE Collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex. The ALICE Collaboration gratefully acknowledges the resources and support provided by all Grid centers and the Worldwide LHC Computing Grid (WLCG) Collaboration. The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: A. I. r Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), State Committee of Science and World Federation of Scientists (WFS), Armenia; Austrian Academy of Sciences, Austrian Science Fund (FWF) [Grant DOI: M 2467-N36] and Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria; Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (Finep), Fundacao de Amparo `a Pesquisa do Estado de Sao Paulo (FAPESP) and Universidade Federal do Rio Grande do Sul (UFRGS), Brazil; Bulgarian Ministry of Education and Science, within the National Roadmap for Research Infrastructures 2020-2027 (object CERN), Bulgaria; Ministry of Education of China (MOEC), Ministry of Science & Technology of China (MSTC) and National Natural Science Foundation of China (NSFC), China; Ministry of Science and Education and Croatian Science Foundation, Croatia; Centro de AplicacionesTecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba; Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic; The Danish Council for Independent Research | Natural Sciences, the VILLUM FONDEN and Danish National Research Foundation (DNRF), Denmark; Helsinki Institute of Physics (HIP), Finland; Commissariat `a l'Energie Atomique (CEA) and Institut National de Physique Nucl ' eaire et de Physique des Particules (IN2P3) and Centre National de la Recherche Scientifique (CNRS), France; Bundesministerium fur Bildung und Forschung (BMBF) and GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Germany; General Secretariat for Research and Technology, Ministry of Education, Research and Religions, Greece; National Research, Development and Innovation Office, Hungary; Department of Atomic Energy Government of India (DAE), Department of Science and Technology, Government of India (DST), University Grants Commission, Government of India (UGC) and Council of Scientific and Industrial Research (CSIR), India; National Research and Innovation Agency-BRIN, Indonesia; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan; Consejo Nacional de Ciencia (CONACYT) y Tecnologia, through Fondo de Cooperacion Internacional en Ciencia y Tecnologia (FONCICYT) and Direccion General de Asuntos del Personal Academico (DGAPA), Mexico; Nederlandse Organisatie voorWetenschappelijk Onderzoek (NWO), Netherlands; The Research Council of Norway, Norway; Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan; Pontificia Universidad Catolica del Peru, Peru; Ministry of Education and Science, National Science Centre and WUT ID-UB, Poland; Korea Institute of Science and Technology Information and National Research Foundation of Korea (NRF), Republic of Korea; Ministry of Education and Scientific Research, Institute of Atomic Physics, Ministry of Research and Innovation and Institute of Atomic Physics and Universitatea Nationala de Stiinta si Tehnologie Politehnica Bucuresti, Romania; Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia; National Research Foundation of South Africa, South Africa; Swedish Research Council (VR) and Knut & Alice Wallenberg Foundation (KAW), Sweden; European Organization for Nuclear Research, Switzerland; Suranaree University of Technology (SUT), National Science and Te chr nology Development Agency (NSTDA) and National Science, Research and Innovation Fund (NSRF via PMU-B B05F650021), Thailand; National Academy of Sciences of Ukraine, Ukraine; Science and Technology Facilities Council (STFC), United Kingdom; National Science Foundation of the USA (NSF) and U.S. Department of Energy, Office of Nuclear Physics (DOE NP), United States of America. In addition, individual groups or members have received support from the European Research Council, Strong 2020-Horizon 2020 (Grants No. 950692, No. 824093), European Union; Academy of Finland (Center of Excellence in Quark Matter) (Grants No. 346327, No. 346328), Finland.

Funders	Funder number
A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), Armenia
State Committee of Science, Armenia
World Federation of Scientists (WFS), Armenia
Austrian Academy of Sciences, Austria
Austrian Science Fund (FWF), Austria	M 2467-N36
Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria
Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
Financiadora de Estudos e Projetos (Finep), Brazil
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil
Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
Bulgarian Ministry of Education and Science, within the National Roadmap for Research Infrastructures 20202027 (object CERN), Bulgaria
Ministry of Education of China (MOEC), China
Ministry of Science AMP; Technology of China (MSTC), China
National Natural Science Foundation of China (NSFC), China
Ministry of Science and Education, Croatia
Croatian Science Foundation, Croatia
Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba
Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic
Danish Council for Independent Research-Natural Sciences, Denmark
VILLUM FONDEN, Denmark
Danish National Research Foundation (DNRF), Denmark
Helsinki Institute of Physics (HIP), Finland
Commissariat a l'Energie Atomique (CEA), France
Institut National de Physique Nucleaire et de Physique des Particules (IN2P3), France
Centre National de la Recherche Scientifique (CNRS), France
Bundesministerium fur Bildung und Forschung (BMBF) , Germany
GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Germany
General Secretariat for Research and Technology, Ministry of Education, Research and Religions, Greece
National Research, Development and Innovation Office, Hungary
Department of Atomic Energy, Government of India (DAE), India
Department of Science and Technology, Government of India (DST), India
University Grants Commission, Government of India (UGC), India
Council of Scientific and Industrial Research (CSIR), India
National Research and Innovation Agency -BRIN, Indonesia
Istituto Nazionale di Fisica Nucleare (INFN), Italy
Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan
Consejo Nacional de Ciencia y Tecnologia (CONACYT), through Fondo de Cooperacion Internacional en Ciencia y Tecnologia (FONCICYT), Mexico
Direccion General de Asuntos del Personal Academico (DGAPA), Mexico
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
Research Council of Norway, Norway
Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan
Pontificia Universidad Catolica del Peru, Peru
Ministry of Education and Science, Poland
National Science Centre, Poland
WUT ID-UB, Poland
Korea Institute of Science and Technology Information, Republic of Korea
National Research Foundation of Korea (NRF), Republic of Korea
Ministry of Education and Scientific Research, Romania
Institute of Atomic Physics, Romania
Ministry of Research and Innovation, Romania
Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia
National Research Foundation of South Africa, South Africa
Swedish Research Council (VR), Sweden
Knut AMP; Alice Wallenberg Foundation (KAW), Sweden
European Organization for Nuclear Research, Switzerland
Suranaree University of Technology (SUT), Thailand
National Science and Technology Development Agency (NSTDA), Thailand
National Science, Research and Innovation Fund (NSRF), Thailand	PMU-B B05F650021
Turkish Energy, Nuclear and Mineral Research Agency (TENMAK), Turkey
National Academy of Sciences of Ukraine, Ukraine
Science and Technology Facilities Council (STFC), United Kingdom
National Science Foundation of the United States of America (NSF)
United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America
European Research Council	950692, 824093
European Union
Academy of Finland (Center of Excellence in Quark Matter), Finland	346327, 346328

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10.1103/PhysRevLett.132.172302Licence: CC BY

PhysRevLett.132.172302Final published version, 16.3 MBLicence: CC BY

Cite this

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title = "Emergence of Long-Range Angular Correlations in Low-Multiplicity Proton-Proton Collisions",

abstract = "This Letter presents the measurement of near-side associated per-trigger yields, denoted ridge yields, from the analysis of angular correlations of charged hadrons in proton-proton collisions at s=13 TeV. Long-range ridge yields are extracted for pairs of charged particles with a pseudorapidity difference of 1.4<|Δη|<1.8 and a transverse momentum of 1",

author = "{ALICE Collaboration} and S. Acharya and D. Adamov{\'a} and {Aglieri Rinella}, G. and L. Aglietta and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, {S. U.} and I. Ahuja and A. Akindinov and M. Al-Turany and D. Aleksandrov and B. Alessandro and Alfanda, {H. M.} and {Alfaro Molina}, R. and B. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and Altamura, {A. R.} and I. Altsybeev and Alvarado, {J. R.} and Anaam, {M. N.} and C. Andrei and N. Andreou and A. Andronic and E. Andronov and A. Caliva and P. Christakoglou and A. Dobrin and L. Fabbietti and A. Grelli and S. Jaelani and Keijdener, {D. L.D.} and Kuijer, {P. G.} and {La Pointe}, {S. L.} and G. Luparello and S. Muhuri and T. Peitzmann and N. Poljak and S. Qiu and Sas, {M. H.P.} and Snellings, {R. J.M.} and {Van Doremalen}, {L. V.R.} and L. Vermunt and M. Verweij and Bas Hofman and Johanna L{\"o}mker and Olaf Massen and Artem Isakov and Mariia Selina and {Pliatskas Stylianidis}, Christos and {van Weelden}, Gijs and Rik Spijkers and {van Leeuwen}, Marco",

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AU - Aglieri Rinella, G.

AU - Aglietta, L.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Aleksandrov, D.

AU - Alessandro, B.

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AU - Ali, B.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altamura, A. R.

AU - Altsybeev, I.

AU - Alvarado, J. R.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, N.

AU - Andronic, A.

AU - Andronov, E.

AU - Caliva, A.

AU - Christakoglou, P.

AU - Dobrin, A.

AU - Fabbietti, L.

AU - Grelli, A.

AU - Jaelani, S.

AU - Keijdener, D. L.D.

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AU - La Pointe, S. L.

AU - Luparello, G.

AU - Muhuri, S.

AU - Peitzmann, T.

AU - Poljak, N.

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AU - Sas, M. H.P.

AU - Snellings, R. J.M.

AU - Van Doremalen, L. V.R.

AU - Vermunt, L.

AU - Verweij, M.

AU - Hofman, Bas

AU - Lömker, Johanna

AU - Massen, Olaf

AU - Isakov, Artem

AU - Selina, Mariia

AU - Pliatskas Stylianidis, Christos

AU - van Weelden, Gijs

AU - Spijkers, Rik

AU - van Leeuwen, Marco

PY - 2024/4/26

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DO - 10.1103/PhysRevLett.132.172302

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SN - 0031-9007

VL - 132

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

M1 - 172302

ER -

Emergence of Long-Range Angular Correlations in Low-Multiplicity Proton-Proton Collisions

Abstract

Bibliographical note

Funding

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