Multiplicity-dependent jet modification from di-hadron correlations in pp collisions at $$ \sqrt{s} $$ = 13 TeV

A bstract Short-range correlations between charged particles are studied via two-particle angular correlations in pp collisions at $$ \sqrt{s} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 13 TeV. The correlation functions are measured as a function of the relative azimuthal angle ∆ φ and the pseudorapidity separation ∆ η for pairs of primary charged particles within the pseudorapidity interval | η | &lt; 0 . 9 and the transverse-momentum range 1 &lt; p T &lt; 8 GeV/ c . Near-side (|∆ φ | &lt; 1 . 3) peak widths are extracted from a generalised Gaussian fitted over the correlations in full pseudorapidity separation (|∆ η | &lt; 1 . 8), while the per-trigger associated near-side yields are extracted for the short-range correlations (|∆ η | &lt; 1 . 3). Both are evaluated as a function of charged-particle multiplicity obtained by two different event activity estimators. The width of the near-side peak decreases with increasing multiplicity, and this trend is reproduced qualitatively by the Monte Carlo event generators PYTHIA 8, AMPT, and EPOS. However, the models overestimate the width in the low transverse-momentum region ( p T &lt; 3 GeV/ c ). The per-trigger associated near-side yield increases with increasing multiplicity. Although this trend is also captured qualitatively by the considered event generators, the yield is mostly overestimated by the models in the considered kinematic range. The measurement of the shape and yield of the short-range correlation peak can help us understand the interplay between jet fragmentation and event activity, quantify the narrowing trend of the near-side peak as a function of transverse momentum and multiplicity selections in pp collisions, and search for final-state jet modification in small collision systems.

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Journal
Journal of High Energy Physics
Published
2025-03-26
DOI
https://doi.org/10.1007/jhep03(2025)194
Primary Topic
High-Energy Particle Collisions Research
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article
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article

Multiplicity-dependent jet modification from di-hadron correlations in pp collisions at $$ \sqrt{s} $$ = 13 TeV

I. Chakaberia, Adrian Horzyk, N. Rubini, S. Y. Noh et al.
Journal of High Energy Physics
High-Energy Particle Collisions Research
article

Multiplicity-dependent jet modification from di-hadron correlations in pp collisions at $$ \sqrt{s} $$ = 13 TeV

I. Chakaberia, Adrian Horzyk, N. Rubini, S. Y. Noh, M. Germain, P. Gasik, C. Lippmann, K. Schweda, A. Manea, J. G. Contreras, M. Mazzilli, N. Agrawal, C. Kim, M. Gagliardi, Felix Willi Hoffmann, I.-K. Yoo, I. G. Bearden, B. Paul, Manuel Viqueira Rodriguez, A. Dubla, T. Virgili, Thomas Janson, R. Turrisi, R. Rath, Artem Kotliarov, K. Røed, D. Ruggiano, E. Glimos, P. Braun-Munzinger, I. Selyuzhenkov, A. Shangaraev, A. Grelli, M. V. Hartung, A. Augustinus, S. Arcelli, A. Bhasin, A. Kurepin, M. Sitta, M. M. Czarnynoga, Giulia Gioachin, M. Agnello, G. L. Usaı́, B. Ulukutlu, J. Castillo Castellanos, M. Planinić, J. Schambach, Jong Woon Bae, C. Terrevoli, Emma Rose Yeats, A. Tavira García, Gianni Shigeru Setoue Liveraro, Y. Sekiguchi, A. Vodopyanov, V. Zaccolo, E. Grecka, S. Masciocchi, R. Lavicka, F. Soramel, P. Dupieux, J. Wilkinson, S. Kumar, S. A. Bysiak, Konstantin Mikhaylov, S. Ahmad, H. M. Alfanda, Mihai Carabaș, S. Dash, F. Mazzaschi, B. Sitár, C. Ferrero, Corentin Cot, M. Bombara, Olaf Massen, F. Grosa, S. Sadovsky, D. Colella, S. Grigoryan, L. Micheletti, C. Sonnabend, R. J. G. van Weelden, Cesar Omar Ramirez Alvarez, J. B. Singh, W. Rzesa, C. Blume, Tuba Gundem, B. Polichtchouk, A. Rustamov, N. Minafra, P. Christiansen, A. M. Gago, S. C. Wenzel, J. M. Jowett, Yaroslav A. Berdnikov, F. Catalano, E. Barreau, M. R. Cosentino, I. Sputowska, P. Giubilato, D. Di Bari, S. Tomassini, B. Windelband, B. S. Nielsen, E. Kryshen, Dimitar Lubomirov Mihaylov, D. Mihai, D. Stocco, A. Khanzadeev, M. Keil, L. Nellen, Gian Michele Innocenti, V. Vechernin, E. Vercellin, A. Balbino, M. W. Menzel, N. Novitzky, A. Menchaca-Rocha, Brian Gerald Hanley, A. Vasiliev, Evgeny Andronov, A. G. Borquez Carcamo, G. Boca, D. J. Kim, M. C. Hwang, K. F. Read, C. Krug, Sushobhan Kumar Mandal, C. Beattie, A. Uras, R. Bellwied, G. Batigne, R. Rui, A. Zarochentsev, A. Fernández Téllez, M. G. Munhoz, D. Thomas, D. Sekihata, D. Wang, A. R. Timmins, J. Musinsky, Iaroslav Panasenko, E. Nappi, P. Závada, L. Bianchi, Renu Bala, S. Nath, F. Bellini, C. H. A. Koster, N. Burmasov, S. Tripathy, Max Philip Rauch, M. D. Buckland, T. Kim, R. C. Lemmon, A. Ferrero, A. De, A. Dainese, Justus Arne Rudolph, M. D. Azmi, J. M. M. Camacho, C. Nattrass, S. S. Räsänen, M. Sharma, A. Furs, J. E. M. Mendez, H. Hamagaki, B. Heybeck, G. J. Tambave, T. Triloki, S. Mattiazzo, Kyle Christian Devereaux, Maja Jadwiga Karwowska, A. Dash, P. Li, N. Bize, S. Beole, L. S. Barnby, A. Gupta, C. Kobdaj, D. Blau, J. Ditzel, S. De Pasquale, I. Pshenichnov, D. Sarkar, G. V. Margagliotti, G. Kornakov, C. A. Reetz, C. Zhang, J. Oleniacz, A. Junique, V. Manko, M. Kim, S. Sambyal, T. Dietel, Y. Kharlov, F. M. Fionda, R. Preghenella, X. Peng, S. Piano, A. Fantoni, S. Ragoni, Hari Mohan Gaur, Bartosz Baliś, D. Behera, C. De Martín, G. Bruno, A. Pop, D. Samitz, B. Kim, P. J. Konopka, Adrian Fereydon Nassirpour, A. Matyja, S. Belokurova, P. Sarma, T. J. Humanic, M. Sukhanov, P. Christakoglou, G. Malfattore, A. Gautam, L. G. E. Beltran, M. Malaev, D. Silvermyr, K. Šafařı́k, Jhoao Gabriel Martins Campos Almeida Arneiro, M. Rasa, F. Ercolessi, Maciej Szymkowski, Rishat Sultanov, М. С. Селина, M. Winn, M. Gorgoń, N. Apadula, Basanta Kumar Nandi, R. Rogalev, M. Colocci, A. Maire, R. W. Marcjan, A. Tikhonov, E. Bartsch, Y. Han, C. Arata, Omar Vázquez Rueda, A. Karasu Uysal, Pawel Grzegorz Russek, V. Riabov, Shiv Kumar Giri, E. J. Kim, S. Shirinkin, V. Lindenstruth, A. Petrov, Tabea Maria Eder, N. Kondratyeva, M. Korwieser, T. Karavicheva, Roman Nepeivoda, Gabriel Garcia Guardiano, Anjali Ila Nambrath, W. Fan, F. Carnesecchi, A. Kuryakin, A. Kravčáková, Mikael Andreas Molander, D. Hatzifotiadou, G. Volpe, N. De Marco, P. Nowakowski, P. Camerini, Semen Iurchenko, F. Colamaria, D. D. Chinellato, S. Pucillo, E. Meninno, L. Dello Stritto, M. Lunardon, E. Ryabinkin, S. Chattopadhyay, G. Mandaglio, Dushmanta Sahu, C. Reckziegel, Stefan Cristi Zugravel, A. Ferretti, A. Önnerstad, Y. Melikyan, Tao Jiang, C. Pinto, H. Hillemanns, M. Kowalski, S. U. Ahn, M. Puccio, S. Nikolaev, S. Strazzi, A. Khuntia, L. Ramello, N. Valle, B. Mohanty, E. Scapparone, Y. Ryabov, N. Funicello, J. Wiechula, Menghe H. Li, R. Del Grande, L. K. Graczykowski, V. M. Sarti, K. Redlich, N. Vozniuk, L. A. Tarasovičová, A. Agarwal, M. Toppi, José M. Garcı́a, E. Botta, T. P. Trzcinski, A. Vinogradov, I. Morozov, Г. Феофилов, V. Kovalenko, V. Filova, Monika Kutyła, R. Gupta, Y. E. M. Bouziani, Jan Michal Dubinski, G. Legras, S. Costanza, F. Reidt, M. Chartier, Shengxin Zhu, N. Tiltmann, Z. Tang, I. Kisel, G. Venanzoni, A. Tauro, R. Arnaldi, R. H. Munzer, Bong-Hwi Lim, C. Oppedisano, A. Alici, C. Ripoli, A. Shatat, R. J. M. Snellings, Y. G., Valentina Akishina, D. De Gruttola, D. M. Jones, Y. Yamaguchi, Stefania Perciballi, A. Villani, A. Bilandzic, N. Jacazio, J. Norman, A. Akindinov, A. Kisiel, Alberto Baldisseri, Joachim Hansen, T. Chujo, R. Sahoo, M. P. Salvan, Fabio de Moraes Canedo, Dhrubajyoti Choudhury, D. Serebryakov, D. Peresunko, Z. Zhang, M. Bregant, G. Taillepied, P. S. Rokita, A. A. Carballo, L. Aphecetche, N. Alizadehvandchali, S. Paisano-Guzmán, B. Hofman, Emilie Haugland Solheim, V. Kozhuharov, K. Gulbrandsen, A. A. P. Suaide, Rohaan Deb, Analyce Bella Soto-Hernandez, S. Bufalino, J. Vrláková, M. R. Haque, Arianna Grisel Torres Ramos, S. Fokin, N. Topilskaya, Z. Xiong, A. Alkin, Raúl Arteche Díaz, Mario Iván Martínez Hernández, K. Barth, G. F. Tassielli, A. Sevcenco, Bianca Sabiu, G. Bencedi, V. Zherebchevskii, C. Garabatos, E. S. Chizzali, A. S. Triolo, Dmitry Averyanov, M. van Leeuwen, L. Pinsky, T. Isidori, N. M. Malik, Jacek Kitowski, Y. Sibiriak, I. Sanna, A. Kondratyev, S. Nikulin, P. Kurashvili, A. Feliciello, M. Rodríguez Cahuantzi, M. Masera, Shirajum Monira, S. K. Saha, P. Hristov, W. H. Trzaska, Nataša Kovačić, Y. Patley, Tanu Gahlaut, A. G. Riffero, N. Andreou, Yael Antonio Vásquez Beltran, P. 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Rybicki, Hitoshi Baba, B. von Haller, M. Fasel, J. Klein, M. G. Poghosyan, G. Romanenko, M. Krivda, O. Karavichev, D. Zhou, A. De Falco, D. Aleksandrov, J. Saini, D. Budnikov, Y. Hou, Víctor Valencia Torres, Alexian Marc Lejeune, Jesper Jan Walter Karlsson Gumprecht, Matteo Castoldi, Kshitish Kumar Pradhan, D. Rohr, P. Antonioli, Michele Rignanese, Angelo Colelli, C. Pantouvakis, I. P. M. Hobus, V. Nikulin, V. Trubnikov, A. Yuncu, J. T. Blair, M. B. Blidaru, R. Alfaro Molina, S. Cho, M. L. Coquet, I. Altsybeev, F. U. Haider, S. Herrmann, A. Isakov, S. S. Khade, S. Kiselev, L. Krcal, E. Laudi, J. Lehrbach, I. Likmeta, S. K. Malik, L. Barreto, H. Park, A. Rakotozafindrabe, J. Ryu, T. F. Silva, V. Sumberia, M. G. Besoiu, T. Tkacik, M. Meres, C. Klein-Bösing, I. Y. Pozos, C. Schmidt, G. Scioli, C. A. Pruneau, A. Caliva, U. Kebschull, B. Hippolyte, T. Kollegger, G. Contin, B. Espagnon, J. Lien, C. Cheshkov, J. Nystrand, P. Chochula, A. Yadav, I. Storehaug, K. Singh, B. Sharma, M. N. Naydenov, D. H. Liu, M. Pennisi, Haakon André Reme-Ness, S. Qiu, Josephina Rae Wright, D. A. Moreira De Godoy, N. Zurlo, S. Chandra, E. López Torres, S. F. Stiefelmaier, P. Pillot, R. Shahoyan, G. Skorodumovs, J. E. Seger, S. Panebianco, M. Shimomura, A. Trifiró, M. Tkacik, N. Zaviyalov, A. Sturniolo, T. Cheng, Cynthia Marie Hadjidakis, K. E. Iversen, S. Nese, T. Simantathammakul, L. Musa, R. Xu, M. Płoskoń, V. Muccifora, S. A. Voloshin, B. Erazmus, V. Grigoriev, N. Zardoshti, M.S. Islam, H. Buesching, B. Naik, D. Miśkowiec, M. Al-Turany, B. Batyunya, H. S. Scheid, Y. W. Baek, I. M. Lofnes, A. Morsch, S. Biswas, K. Roslon, S. F. Taghavi, O. Villalobos Baillie, C. Cicalo, E. Hellbär, F. Krizek, A. Riabov, A. R. Schmier, M. O. Schmidt, B. Sahoo, A. Neagu, C. Grigoras, R. Russo, F. Jonas, F. Zanone, S. Rojas Torres, O. Sheibani, R. Singh, N. V. Schmidt, R. Schotter, B. Kileng, T. Mrnjavac, S. Yuan, J. Shin, H. Sharma, R. Verma, S. Sawan, M. M. O. Virta, S. K. Prasad, P. Cortese, R. Schicker, S. L. La Pointe, M. Zhalov, U. Dmitrieva, V. Singhal, G. Herrera Corral, R. Langoy, A. Kalweit, A. Rehman, J. de Cuveland, G. Tejeda Muñoz, L. Terlizzi, Banajit Barman, J. Park, V. A. Okorokov, C. Schiaua, J. Saetre, R. Cruz-Torres, Motomi Oya, R. Ilkaev, A. Lakrathok, L. Gyulai, E. Nekrasova, P. J. Steffanic, R. Ejima, P. Crochet, D. Battistini, A. S. Menon, D. Grund, A. Mulliri, S. A. Rodríguez Ramírez, F. T. Weiglhofer, N. Tapus, R. Tokumoto, J. S. Colburn, A. Jusko, M. Ippolitov, P. P. Bhaduri, S. Tang, R. Lea, J. F. Grosse-Oetringhaus, S. Kundu, M. A. Völkl, S. Porteboeuf-Houssais, A. Roy, M. Krüger, Tomasz Marcin Lelek, Sierra Lisa Cantway, A. Nyanin, C. Zampolli, T. B. Skaali, N. Bastid, H. Yu, M. Vasileiou, L. Vickovic, R. J. Ehlers, C. Gargiulo, G. Kozlov, P. Huhn, Michael Rudolf Ciupek, Edgar Dominguez Rosas, K. Krizkova Gajdosova, Geun Hee Hong, H. Pei, S. Pisano, L. Malinina, G.M. Perez, N. Poljak, F. Bock, D. Röhrich, R. Ricci, K. F. Hetland, T. J. Shaba, M. Lamanna, I. Legrand, O. Pinazza, G. Aglieri Rinella, L. Serkin, J. Kaewjai, P. Giubellino, G. Bonomi, J. J. Gaardhøje, Vlad-Iulius Nastase, E. Frajna, Sarjeeta Gami, A. M. C. Glaenzer, C. D. Galvan, V. Ivanov, A. Kurepin, V. J. G. Feuillard, Fabiola Viridiana Lugo, M. Zhao, R. Guernane, I. Vorobyev, B. Ketzer, M. Arslandok, H. Borel, P. K. Sahu, K. Ullaland, J. Bielčíková, I. Stan, M. J. Kweon, K. Reygers, M. B. Gay Ducati, R. Averbeck, J. Wikne, V. Chibante Barroso, A. Borissov, Z. Buthelezi, S. Das, U. Fuchs, R. Vértesi, S. Gotovac, V. Barret, P. Lu, L. Betev, B. Dönigus, A. Masoni, A. Bylinkin, T. Siemiarczuk, G. Conesa Balbastre, A. Kluge, J. Wessels, C. Loizides, S. Muhuri, F. Manso, S. Evdokimov, C. Kuhn, D. Elia, A. Marín, S. Yano, S. Ji, M. Inaba, R. Divià, J. W. Harris, I. Králik, C. Jahnke, A. Ohlson, G. Luparello, A. Toia, M. Broz, J. H. Yoon, M. Suljic, S. Oh, D. Finogeev, T. Alt, F. Pliquett, A. Danu, A. Margotti, L. Fabbietti, R. Bailhache, A. Badalà, M. Petrovici, C. Suire, Y. Miake, D. Varga, H. Hassan, E. Rogochaya, A. Andronic, J. D. Tapia Takaki, B. Jacak, C. Furget, V. K. Singh, M. Pikna, P. Das, R. Hannigan, A. Harton, A. Schmah, W. Wu, S. Kim, P. G. Kuijer, S. Sumowidagdo, P. Nomokonov, B. Volkel, V. Pozdniakov, P. Chakraborty, G. de Cataldo, P. Vande Vyvre, F. Noferini, P. Dhankher, S. Senyukov, I. Belikov, A. Wegrzynek, G. Biro, B. Singh, V. Anguelov, J. Otwinowski, D. Karatovic, Z. Vilakazi, G. Eulisse, N. Mallick, J. W. Myrcha, O. Matonoha, F. Fan, M. Jung, T. Klemenz, S. Zhang, J. Song, B. Alessandro, L. B. Havener, Y. Bailung, A. Modak, G. Paić, C. Wang, V. Grabski, Y. Mao, H. R. Schmidt, J. Stachel, J. J. Seo, B. Ali, P. M. Bond, W. Deng, L. Bratrud, J. Jung, M. Kleiner, L. Šerkšnytė, A. Tumkin, J. Bok, Y. Kwon, L. Boldizsár, T. S. Rogoschinski, H. Lee, A. Dobrin, G. A. Willems, W. Guo, D. Kumar, C. Markert, G. G. Guardiano, S. Khan, J. D. Mulligan, S. H. Lim, C. Bartels, M. Cai, J. Cho, H. Appelshäuser, M. Richter, A. Nath, M. Vala, Y. Pestov, F. Eisenhut, L. Lautner, A. Berdnikova, R. Caron, I. Ahuja, T. B. Saramela, Q. Shou, L. Quaglia, S. Kirsch, V. Sarritzu, T. Bodova, C. Ghosh, P. Vargas Torres, J. M. Sonneveld, M. B. Ferrer, A. M. Khan, A. A. Riedel, L. A. D. Carvalho, M. Ciacco, K. Kimura, R. Spijkers, J. Staa, S. Thakur, S. Jia, P. Stratmann, D. R. Gangadharan, R. Simeonov, M. G. Tarzila, T. S. Tveter, A. Yadav, A. N. Flores, T. Fusayasu, M. V. Makariev, T. Tripathy, D. M. Krupova, T. Kumaoka, A. Mastroserio, H. D. Regules-Medel, S. Sakai, A. Negru, L. Ferrandi, S. Padhan, C. A. van Veen, K. Tomohiro, G. Alocco, V. Kučera, M. M. Lesch, C. Mordasini, A. P. Bigot, M. Hemmer, Z. Banoo, S. Roy, U. Sharma, P. Buehler, R. Grosso, M. A. Janik, K. Oyama, W. Riegler, J. Faivre, B. Di Ruzza, D. Hutter, P. Kaliňák, G. Wilk, I. C. Arsene, F. Costa, P. Martinengo, P. M. Jacobs, J. Schukraft, A. D. C. Bell Hechavarria, Z. Varga, A. Palasciano, P. Ganoti, B. Diab, I. Fokin, S. Politano, S. Vergara Limón, Y. Pachmayer, F. Barile, M. H. P. Sas, Sebastian Dominik Koryciak, S. Lökòs, F. Prino, A. Khatun, Juan Carlos Cabanillas Noris, J. Alme, G. G. Barnaföldi, F. Flor, Laura Maria Huhta, L. Bergmann, Ciro Fabian Bermudez Marquez, L. Barioglio, Y. Wu, S. Foertsch, S. Chapeland, M. Chen, Z. Wang, X. Bai, Z. Yin, I. Ravasenga, R. Lietava, X. Lopez, T. Sinha, Dukhishyam Mallick, A. Rai, Ezra Douglas Lesser, Helen Louise Caines, L. V. R. van Doremalen, N. Smirnov, M. T. Petersen, M. F. T. Cabrera, R. Singh, Adel Bensaoula, Ø. Djuvsland, Y. Zhang, P. Lévai, B. Bhattacharjee, H. Murakami, R. N. Patra, S. Klein, J. Konig, Roman August Gernhaeuser, B. Zhang, K. Sajdakova, Monika Joanna Jakubowska, R. Cerri, K. Shigaki, N. Dzalaiova, C. Ceballos Sánchez, S. Jadlovska, A. Rossi, P. Glässel, J. L. Klay, C. Ristea, X. Zhang, M. N. Anaam, E. Karpechev, M. Guilbaud, J. E. Parkkila, Z. Ahammed, P. Hauer, F. Antinori, F. Rami, J. R. Luhder, M. Concas, M. C. Danisch, J. Zhu, I. León Monzón, Y. Wang, E. Calvo Villar, A. Hutson, R. Nania, Christos Pliatskas Stylianidis, Dibakar Bauri, A. Schröter, A. A. P. Jimenez, R. Kohara, N. A. Grunwald, J. Jadlovsky, A. Shabetai, J. R. Alvarado, N. Nicassio, F. Schlepper, J. Keul, T. García Chávez, S. Trogolo, J. Wan, Sabrina Gabrielle Hernandez, Sara Haidlova, M. Mager, P. La Rocca, J. Bielčík, E. Garcia-Solis, S. Kushpil, H. Helstrup, Y. Zhi, Z. Conesa del Valle, N. Bluhme, M. P. P. Martins, S. Chattopadhay, M. Barlou, M. Horst, M. Melo, Aswathy Menon Kavumpadikkal Radhakrishnan, D. Pagano, J. L. Bazo Alba, C. H. Christensen, O. Vázquez Doce, S. Basu, S. Siddhanta, Kangkan Goswami, S. Jaelani, E. Fragiacomo, A. Redelbach, T. Peitzmann, You Zhou, A. Di Mauro, S. Sharma, L. Zhang, M. Zhang
article en

Abstract

A bstract Short-range correlations between charged particles are studied via two-particle angular correlations in pp collisions at $$ \sqrt{s} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 13 TeV. The correlation functions are measured as a function of the relative azimuthal angle ∆ φ and the pseudorapidity separation ∆ η for pairs of primary charged particles within the pseudorapidity interval | η | &lt; 0 . 9 and the transverse-momentum range 1 &lt; p T &lt; 8 GeV/ c . Near-side (|∆ φ | &lt; 1 . 3) peak widths are extracted from a generalised Gaussian fitted over the correlations in full pseudorapidity separation (|∆ η | &lt; 1 . 8), while the per-trigger associated near-side yields are extracted for the short-range correlations (|∆ η | &lt; 1 . 3). Both are evaluated as a function of charged-particle multiplicity obtained by two different event activity estimators. The width of the near-side peak decreases with increasing multiplicity, and this trend is reproduced qualitatively by the Monte Carlo event generators PYTHIA 8, AMPT, and EPOS. However, the models overestimate the width in the low transverse-momentum region ( p T &lt; 3 GeV/ c ). The per-trigger associated near-side yield increases with increasing multiplicity. Although this trend is also captured qualitatively by the considered event generators, the yield is mostly overestimated by the models in the considered kinematic range. The measurement of the shape and yield of the short-range correlation peak can help us understand the interplay between jet fragmentation and event activity, quantify the narrowing trend of the near-side peak as a function of transverse momentum and multiplicity selections in pp collisions, and search for final-state jet modification in small collision systems.

Journal of High Energy PhysicsVol. 2025(3)
Université Claude Bernard Lyon 1 (FR), University of Foggia (IT), Warsaw University of Technology (PL), National Agency for New Technologies, Energy and Sustainable Economic Development (IT), University of Messina (IT), Hiroshima University (JP), Goethe University Frankfurt (DE), Creighton University (US), Università degli Studi del Piemonte Orientale “Amedeo Avogadro” (IT), University of Copenhagen (DK), University of Science and Technology of China (CN), Jagiellonian University (PL), Variable Energy Cyclotron Centre (IN), Oak Ridge National Laboratory (US), Centre National de la Recherche Scientifique (FR), Universidade Federal do Rio Grande do Sul (BR), A. Alikhanyan National Laboratory (AM), Gangneung–Wonju National University (KR), University of Bonn (DE), Gauhati University (IN), University of Trieste (IT), University of Jammu (IN), University of Tsukuba (JP), University of Kansas (US), University of Liverpool (GB), Lawrence Berkeley National Laboratory (US), National Academy of Sciences of Ukraine (UA), California Polytechnic State University (US), Bose Institute (IN), University of Cape Town (ZA), Saha Institute of Nuclear Physics (IN), Indian Institute of Technology Bombay (IN), National Institute of Science Education and Research (IN), Chungbuk National University (KR), GSI Helmholtz Centre for Heavy Ion Research (DE), Aligarh Muslim University (IN), Saga University (JP), Politecnico di Torino (IT), Western Norway University of Applied Sciences (NO), University of Zagreb (HR), Universidade Estadual de Campinas (UNICAMP) (BR), Technical University of Košice (SK), University of Oslo (NO), Wayne State University (US), Lund University (SE), Nagasaki Institute of Applied Science (JP), Inha University (KR), University of the Witwatersrand (ZA), Utrecht University (NL), Yonsei University (KR), Universidad Autónoma de Sinaloa (MX), Université Clermont Auvergne (FR), Homi Bhabha National Institute (IN), National and Kapodistrian University of Athens (GR), University of Pavol Jozef Šafárik (SK), Slovak Academy of Sciences (SK), University of Wrocław (PL), University of Derby (GB), Heidelberg University (DE), University of Münster (DE), Fudan University (CN), University of Pavia (IT), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR), Université Paris-Saclay (FR), University of Tennessee System (US), Helsinki Institute of Physics (FI), University of South-Eastern Norway (NO), Frankfurt Institute for Advanced Studies (DE), Daresbury Laboratory (GB), University of California System (US), Sejong University (KR), United Nations University Institute for Sustainability and Peace (JP), China University of Geosciences (CN), Yale University (US), Institute of Physics, Bhubaneshwar (IN), Central China Normal University (CN), Yıldız Technical University (TR), Max Planck Institute for Physics (DE), Institute of Experimental Physics of the Slovak Academy of Sciences (SK), Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering (RO), National Institute for Subatomic Physics (NL), China Institute of Atomic Energy (CN), National Centre for Nuclear Research (PL), Institut de Physique (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT), Laboratoire de Physique de Clermont Auvergne (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT), Institute of Nuclear Physics, Polish Academy of Sciences (PL), Laboratoire de Physique Subatomique et des Technologies Associées (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Pavia (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Bari (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Catania (IT), FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ), HUN-REN Wigner Research Centre for Physics (HU), IMT Atlantique (FR), CEA Paris-Saclay (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari (IT), National Nuclear Research Center (AZ), Institut National de Physique Nucléaire et de Physique des Particules (FR), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (FR), South Great Plain Regional Innovation Agency (HU), Laboratoire de Physique Subatomique et de Cosmologie (FR), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT), Hospital Universitário da Universidade de São Paulo (BR), Institute of Space Science - INFLPR Subsidiary (RO), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT), Czech Academy of Sciences, Nuclear Physics Institute (CZ), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT), Stefan Meyer Institute for Subatomic Physics (AT), KTO Karatay University (TR), Bogolyubov Institute for Theoretical Physics (UA), Institut de Recherche sur les Lois Fondamentales de l'Univers (FR), Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CU), National Research and Innovation Agency (ID), University of Bergen (NO), University of Houston (US), Czech Technical University in Prague (CZ), Pusan National University (KR), Panjab University (IN), The Ohio State University (US), Sofia University "St. Kliment Ohridski" (BG), Universitatea Națională de Știință și Tehnologie Politehnica București (RO), Technical University of Munich (DE), Indian Institute of Technology Indore (IN), Pontificia Universidad Católica del Perú (PE), European Organization for Nuclear Research (CH), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (MX), AGH University of Krakow (PL), Polytechnic University of Bari (IT), Université de Strasbourg (FR), Universidade Federal do ABC (BR), Benemérita Universidad Autónoma de Puebla (MX), Chicago State University (US), Comenius University Bratislava (SK), The University of Tokyo (JP), University of Tennessee at Knoxville (US), University of Birmingham (GB), University of Brescia (IT), Jeonbuk National University (KR), University of Tübingen (DE), Suranaree University of Technology (TH), Sungkyunkwan University (KR), The University of Texas at Austin (US), National Research Foundation (ZA), Korea Institute of Science & Technology Information (KR), Universidad Nacional Autónoma de México (MX), Université Grenoble Alpes (FR), University of Split (HR), University of Jyväskylä (FI), University of California, Berkeley (US), Nantes Université (FR), Nara Women's University (JP)
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, 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, Ministerstvo školstva, vedy, výskumu a športu Slovenskej republiky, 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, Universidade Federal do Rio Grande do Sul, 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 97%
High-Energy Particle Collisions Research
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