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Extending the ALICE strong-interaction studies to nuclei: measurement of proton-deuteron correlations in pp collisions at vs = 13 TeV

  • The ALICE collaboration
  • Technical University of Munich
  • Variable Energy Cyclotron Centre
  • Czech Academy of Sciences
  • Goethe University Frankfurt
  • CERN
  • Sezione INFN
  • National Institute for Nuclear Physics
  • Aligarh Muslim University
  • Korea Institute of Science and Technology Information
  • Pavol Jozef Šafárik University
  • Indonesian Institute of Sciences
  • Alikhanov Institute for Theoretical and Experimental Physics
  • GSI Helmholtzzentrum für Schwerionenforschung
  • Fudan University
  • Russian Research Centre Kurchatov Institute
  • Central China Normal University
  • Universidad Nacional Autónoma de México
  • COMSATS University Islamabad
  • University of Houston
  • University of Bergen
  • St. Petersburg State University
  • National Institute for Physics and Nuclear Engineering
  • National Institute for Subatomic Physics
  • University of Münster
  • Ruprecht-Karls-Universität Heidelberg
  • Lawrence Berkeley National Laboratory
  • Nantes Université
  • University of Oslo
  • Yale University
  • Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
  • Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN
  • Gangneung-Wonju National University
  • University of Science and Technology of China
  • Indian Institute of Technology Indore
  • University of Jammu
  • Université Paris-Saclay Centre d’ Études de Saclay (CEA)
  • AGH University of Krakow
  • Rheinische Friedrich-Wilhelms-Universität Bonn
  • Bose Institute
  • National and Kapodistrian University of Athens
  • Wigner Research Centre for Physics
  • STFC Daresbury Laboratory
  • Université Clermont Auvergne
  • University of Liverpool
  • University of Lund
  • Joint Institute for Nuclear Research
  • Indian Institute of Technology Bombay
  • University of Copenhagen
  • Université de Strasbourg
  • Moscow Engineering Physics Institute
  • Petersburg Nuclear Physics Institute (PNPI)
  • Institute of Space Science (ISS)
  • Gauhati University
  • INFN, Laboratori Nazionali Di Frascati
  • Faculty of Nuclear Sciences and Physical Engineering
  • Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
  • University of Texas at Austin
  • Moscow Institute for Physics and Technology
  • University of Pavia
  • Oak Ridge National Laboratory
  • Inha University
  • Università di Brescia
  • Universidade de São Paulo
  • Polytechnic University of Bari
  • Russian Federal Nuclear Center (VNIIEF)
  • Austrian Academy of Sciences
  • National Research Foundation
  • University of the Witwatersrand
  • University of Kansas
  • Pontifical Catholic Univ. of Peru
  • Universidad Autonoma de Sinaloa
  • Benemérita Universidad Autónoma de Puebla
  • Homi Bhabha National Institute
  • Université de Lyon
  • Universidade Estadual de Campinas
  • University of Tsukuba
  • Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
  • University of Cape Town
  • University of Birmingham
  • Polytechnic University of Turin
  • Université Grenoble Alpes
  • Università del Piemonte Orientale and Gruppo Collegato INFN
  • Universidade Federal do ABC
  • Frankfurt Institute for Advanced Studies
  • Warsaw University of Technology
  • University of California at Berkeley
  • Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
  • RAS - Institute for Nuclear Research
  • Panjab University
  • Comenius University
  • University of Zagreb
  • Institute for High Energy Physics
  • Chicago State University
  • National Nuclear Research Center
  • Universidade Federal do Rio Grande do Sul
  • Nagasaki Institute of Applied Science
  • Wayne State University
  • University of Split
  • Institute for Subatomic Physics of Utrecht University
  • A. Alikhanian Yerevan Institute of Physics
  • Tokyo University
  • Western Norway University of Applied Sciences
  • Centro de Investigación y de Estudios AVanzados (CINVESTAV)
  • Yonsei University
  • Creighton University
  • University of Tennessee
  • Ohio State University
  • Technical University of Košice
  • Suranaree University of Technology
  • Slovak Academy of Sciences
  • KTO Karatay University
  • Zentrum für Technologietransfer und Telekommunikation (ZTT)
  • Pusan National University
  • University of Jyväskylä
  • Jeonbuk National University
  • Sejong University
  • California Polytechnic State University, San Luis Obispo
  • National Centre for Nuclear Studies
  • University of South-Eastern Norway
  • China Institute of Atomic Energy
  • M.V.Lomonosov Moscow State University
  • University of Messina
  • Institute of Physics of the Czech Academy of Sciences
  • Università degli Studi di Foggia
  • University of Rome La Sapienza
  • University of Helsinki
  • Chungbuk National University
  • Hiroshima University
  • Budker Institute for Nuclear Physics
  • University of Rajasthan
  • University of Wrocław
  • Eberhard Karls Universität Tübingen
  • Nara Women's University
  • Bogolyubov Institute for Theoretical Physics Nasu

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

The large data sample of high-multiplicity pp collisions collected by ALICE allows for the precise measurement of the size of source producing primary hadrons, opening the doors to a study of the interaction of different hadron species using femtoscopy techniques. The momentum correlation between (anti)protons and (anti)deuterons measured in pp collisions at vs = 13 TeV with ALICE is studied here for the first time. The measured correlation function for (p)p-(d)d pairs is compared with theoretical predictions obtained considering Coulomb and Coulomb plus strong interactions and employing the Lednický-Lyuboshitz model with scattering parameters extracted from traditional scattering experiments for the p-d system. The measured correlation function can not be reproduced by any of the obtained predictions. This deviation can to large extent be interpreted as a demonstration of the late formation time of (anti)deuterons in hadron-hadron collisions. This observation is key for the understanding of the production mechanism of light (anti)nuclei, which is an open issue in high-energy physics and has also important consequences for the study of antinuclei formation in the interstellar medium either from collisions triggered by high-energy cosmic rays or by dark matter decays.

Original languageEnglish
Article number391
JournalProceedings of Science
Volume398
StatePublished - 2021
Event2021 European Physical Society Conference on High Energy Physics, EPS-HEP 2021 - Virtual, Online, Germany
Duration: 26 Jul 202130 Jul 2021

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