Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC

This work reports femtoscopic correlations of p - − p ( p ‾ - − p ‾ ) and p − − d ( p ‾ - − d ‾ ) pairs measured in Pb–Pb collisions at center-of-mass energy per nucleon s N N = 5.02 TeV in the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source on the pair transverse mass ( m T ) and on the average charge particle multiplicity 〈 dN ch / d η 〉 1 / 3 for three centrality intervals (0–10 % , 10–30 % , 30–50 % ). In both cases, the expected power-law and linear scalings are observed, respectively. The measured p − − d correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in Pb–Pb collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons have a minimum value at 2 . 73 − 0.05 + 0.05 and 3 . 10 − 0.86 + 1.04 fm, respectively, for the 30–50 % centrality collisions. Moreover, the m T -scaling obtained for the p - − p and p − − d systems is compatible within 1 σ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.

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Journal
Physics Letters B
Published
2025-10-17
DOI
https://doi.org/10.1016/j.physletb.2025.139921
Citations
1
Primary Topic
High-Energy Particle Collisions Research
Type
article
Field-Weighted Citation Impact
1.87

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article

Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC

F. Ronchetti, K. Barth, Adrian Horzyk, S. Y. Noh et al.
1 citations
Physics Letters B
High-Energy Particle Collisions Research
1.87
article

Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC

F. Ronchetti, K. Barth, Adrian Horzyk, S. Y. Noh, M. Germain, C. Lippmann, P. Gasik, M. Guilbaud, Sangwoo Park, S. Choudhury, A. Yuncu, K. Schweda, M. Mazzilli, N. Agrawal, C. Kim, M. Gagliardi, I.-K. Yoo, I. G. Bearden, B. Paul, G. Luparello, A. Dubla, T. Virgili, D. Hatzifotiadou, R. Rath, Artem Kotliarov, Hanseo Park, I. Selyuzhenkov, V. Kučera, I. Fokin, A. Grelli, C. Andrei, Y. W. Baek, A. Margotti, A. Bhasin, M. Sitta, Maria Teresa Camerlingo, C. Markert, I. Altsybeev, Neal Nathanson, Giulia Gioachin, M. Agnello, G. L. Usaı́, B. Ulukutlu, J. Castillo Castellanos, M. Planinić, C. Terrevoli, Emma Rose Yeats, Gianni Shigeru Setoue Liveraro, A. Morsch, K. Xiong, Geovane Grossi Araújo de Souza, V. Zaccolo, E. Grecka, Maciej Marek Czarnynoga, R. Lavicka, F. Soramel, Alexandru Manea, J. Wilkinson, P. Chochula, Pritam Chakraborty, Konstantin Mikhaylov, M. Viviani, H. M. Alfanda, Mihai Carabaș, T. Fusayasu, Shangtai Jin, Katarzyna Gwizdziel, C. Wang, F. Mazzaschi, Diana Rosales Herrera, B. Sitár, C. Ferrero, Pradeep Paudel, M. Bombara, Guido Alexander Willems, Olaf Massen, F. Grosa, L. E. Marcucci, Harald Appelshaeuser, Ernst Hellbär, D. Colella, A. Rai, F. Colamaria, S. Grigoryan, E. Frajna, Cesar Omar Ramirez Alvarez, Gauthier Legras, W. Rzesa, Tuba Gundem, Stéphane Lambert, Victor Trubnikov, Nida Malik, A. Rustamov, N. Minafra, N. Zurlo, Batoul Diab, P. Christiansen, J. M. Jowett, Yuan Zhang, Federica Zanone, A. Akindinov, Yaroslav A. Berdnikov, S Kurita, F. Catalano, M. R. Cosentino, Sanghoon Lim, H. Hamagaki, Thiago Badaro Saramela, P. Giubilato, S. Biswas, D. Di Bari, Filippo Costa, B. S. Nielsen, F. Antinori, E. Kryshen, D. Stocco, M. Keil, L. Nellen, V. Vechernin, Anton Albert Riedel, Kamaljeet Singh, N. Novitzky, Brian Gerald Hanley, A. Vasiliev, Evgeny Andronov, D. J. Kim, M. Broz, K. F. Read, G. Bonomi, S. Kumar, C. Krug, Sushobhan Kumar Mandal, Senjie Zhu, J. Ryu, A. Uras, G. Batigne, Rune Langoy, Jong-Han Park, R. Rui, Marcello Di Costanzo, R. Singh, P. Ganoti, A. Fernández Téllez, Florian Eisenhut, Iaroslav Panasenko, G. Scioli, Triloki Triloki, E. Nappi, P. Závada, L. Bianchi, Renu Bala, Yanchun Ding, Hikari Murakami, F. Bellini, J. Bielčíková, S. Tripathy, Max Philip Rauch, M. D. Buckland, R. C. Lemmon, A. Ferrero, A. De, A. Dainese, Justus Arne Rudolph, M. D. Azmi, P. Braun‐Munzinger, M. Šuljić, C. Nattrass, S. S. Räsänen, Sidharth Kumar Prasad, S. Khan, P. La Rocca, Tulika Tripathy, I. Ahuja, Jiaqi Luo, E. Laudi, Maja Jadwiga Karwowska, A. Dash, M. Lamanna, Vladislav Kuskov, A. Modak, L. S. Barnby, Lewis H. Ryder, C. Kobdaj, Daiki Sekihata, Zulkaida Akbar, J. Ditzel, S. De Pasquale, D. Sarkar, G. V. Margagliotti, Xiaomei Li, G. Kornakov, I. León Monzón, Y. Bailung, Tebogo Joyce Shaba, J. Oleniacz, M. Kim, Y. Kharlov, F. M. Fionda, R. Preghenella, X. Peng, V. Muccifora, Zhengqing Wang, Amalesh Kumar Manna, S. Piano, Meiyi Chen, K. Ullaland, A. Fantoni, S. Ragoni, Hari Mohan Gaur, Bartosz Baliś, D. Behera, F. Jonas, Corrado Gargiulo, Davide Chiappara, Zhiyong Lu, B. Espagnon, S. Politano, L. Boldizsár, Lorenzo Mattei, G. Bruno, A. Pop, A. Masoni, N. Apadula, T. J. Humanic, V. Anguelov, Elena Rogochaya, P. Sarma, P. Christakoglou, L. G. E. Beltran, D. Silvermyr, R. Schicker, Jhoao Gabriel Martins Campos Almeida Arneiro, A. Bilandzic, M. Rasa, Darius Mihai, B. Hippolyte, F. Ercolessi, Souvik Chattopadhay, Chuntai Wu, M. Winn, M. Gorgoń, Basanta Kumar Nandi, M. Colocci, Ryoka Tokumoto, M. M. Lesch, Vikash Sumberia, C. Arata, M. Mager, Omar Vázquez Rueda, M. Pikna, Jonathan Caspar Witte, V. Riabov, S. Shirinkin, V. Lindenstruth, B. Alessandro, B. Erazmus, Tabea Maria Eder, T. Karavicheva, S. Bufalino, Roman Nepeivoda, Johanna Stachel, Anjali Ila Nambrath, F. Carnesecchi, A. Kuryakin, A. Kravčáková, Mikael Andreas Molander, Ran Tu, Joonsuk Bae, G. Volpe, Alessandro Sturniolo, P. Camerini, S. 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Abstract

This work reports femtoscopic correlations of p - − p ( p ‾ - − p ‾ ) and p − − d ( p ‾ - − d ‾ ) pairs measured in Pb–Pb collisions at center-of-mass energy per nucleon s N N = 5.02 TeV in the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source on the pair transverse mass ( m T ) and on the average charge particle multiplicity 〈 dN ch / d η 〉 1 / 3 for three centrality intervals (0–10 % , 10–30 % , 30–50 % ). In both cases, the expected power-law and linear scalings are observed, respectively. The measured p − − d correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in Pb–Pb collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons have a minimum value at 2 . 73 − 0.05 + 0.05 and 3 . 10 − 0.86 + 1.04 fm, respectively, for the 30–50 % centrality collisions. Moreover, the m T -scaling obtained for the p - − p and p − − d systems is compatible within 1 σ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.

Physics Letters BVol. 871
Goethe University Frankfurt (DE), Variable Energy Cyclotron Centre (IN), GSI Helmholtz Centre for Heavy Ion Research (DE), Aligarh Muslim University (IN), Politecnico di Torino (IT), Homi Bhabha National Institute (IN), University of Pavol Jozef Šafárik (SK), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR), Frankfurt Institute for Advanced Studies (DE), Institut Pluridisciplinaire Hubert Curien (FR), Central China Normal University (CN), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT), Laboratoire de Physique Subatomique et des Technologies Associées (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Bari (IT), IMT Atlantique (FR), CEA Paris-Saclay (FR), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (FR), Laboratoire de Physique Subatomique et de Cosmologie (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT), Institute of Nuclear Physics of Lyon (FR), National Nuclear Energy Agency of Indonesia (ID), Institut de Recherche sur les Lois Fondamentales de l'Univers (FR), National Research and Innovation Agency (ID), Institut de Physique des 2 Infinis de Lyon (FR), University of Houston (US), European Organization for Nuclear Research (CH), Korea Institute of Science & Technology Information (KR), Universidad Nacional Autónoma de México (MX)
National Science Foundation, U.S. Department of Energy, Villum Fonden, CERN, Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu, Badan Riset dan Inovasi Nasional, European Commission, National Research Foundation, Department of Science and Technology, Ministry of Science and Technology, India, Council of Scientific and Industrial Research, India, University Grants Commission, Deutsche Forschungsgemeinschaft, Ministry of Education, Culture, Sports, Science and Technology, Danmarks Grundforskningsfond, Fundação de Amparo à Pesquisa do Estado de São Paulo, National Natural Science Foundation of China, Österreichischen Akademie der Wissenschaften, Grantová Agentura České Republiky, Ministry of Education of the People's Republic of China, Bundesministerium für Bildung und Forschung, Austrian Science Fund, Consejo Nacional de Ciencia y Tecnología, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, General Secretariat for Research and Technology, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Korea Institute of Science and Technology, Korea Institute of Science and Technology Information, National Research Foundation of Korea, National Science and Technology Development Agency, Suranaree University of Technology, Vetenskapsrådet, Hrvatska Zaklada za Znanost, Centre National de la Recherche Scientifique, Financiadora de Estudos e Projetos, Danmarks Frie Forskningsfond, Norges Forskningsråd, Forskningsrådet om Hälsa, Arbetsliv och Välfärd, State Committee of Science, Fondo de Cooperación Internacional en Ciencia y Tecnología, Pontificia Universidad Católica del Perú, Istituto Nazionale di Fisica Nucleare, Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear, Science and Technology Facilities Council, Japan Society for the Promotion of Science, Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México, GSI Helmholtzzentrum für Schwerionenforschung, Institut National de Physique Nucléaire et de Physique des Particules, National Research, Development and Innovation Office, Nuclear Physics, FP7 International Cooperation
Openalex Percentile: Top 12%
High-Energy Particle Collisions Research
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