Accès ouvert déclaré
2025
preprint
Measurement of the inclusive isolated-photon production cross section in pp and Pb–Pb collisions at $\mathbf {\sqrt{\textit{s}_{NN }} = 5.02}$ TeV
S. Acharya, Apar Agarwal, G. Aglieri Rinella, Luca Aglietta, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, I. Ahuja, A. Akindinov, Valentina Akishina, Mohammad Al-Turany, Dmitry Aleksandrov, B. Alessandro, H. M. Alfanda, Jose Ruben Alfaro Molina, Bushra Ali, A. Alici, N. Alizadehvandchali, A. Alkin, J. Alme, G. Alocco, T. Alt, Anna Rita Altamura, Igor Altsybeev, Jesus Ricardo Alvarado Garcia, Cesar Omar Ramirez Alvarez, M. N. Anaam, C. Andrei, N. Andreou, A. Andronic, Evgeny Andronov, V. Anguelov, F. Antinori, P. Antonioli, N. Apadula, L. Aphecetche, H. Appelshäuser, C. Arata, S. Arcelli, R. Arnaldi, Jhoao Gabriel Martins Campos Almeida Arneiro, I. C. Arsene, M. Arslandok, A. Augustinus, R. Averbeck, Dmitry Averyanov, M. D. Azmi, Hitoshi Baba, A. Badalà, Joonsuk Bae, Yunseul Bae, Y. W. Baek, Xiaozhi Bai, R. Bailhache, Y. Bailung, R. Bala, A. Balbino, A. Baldisseri, Bartosz Baliś, Z. Banoo, Veronika Barbasová, F. Barile, L. Barioglio, Maria Barlou, Banajit Barman, G. G. Barnaföldi, L. S. Barnby, E. Barreau, Valerie Ramillien Barret, Leonardo Barreto de Oliveira Campos, C. Bartels, K. Barth, E. Bartsch, N. Bastid, S. Basu, G. Batigne, D. Battistini, B. Batyunya, Dibakar Bauri, J. L. Bazo Alba, I. G. Bearden, C. Beattie, P. Becht, D. Behera, I. Belikov, Ailec Bell Hechavarria, F. Bellini, R. Bellwied, S. Belokurova, L. G. E. Beltran, Yael Antonio Vasquez Beltran, G. Bencédi, Adel Bensaoula, S. Beolè, Y. Berdnikov, A. Berdnikova, Luisa Bergmann, Mihaela Gabriela Besoiu, L. Betev, Partha Pratim Bhaduri, A. Bhasin, B. Bhattacharjee, L. Bianchi, J. Bielčík, J. Bielčíková, Alexandre Patrick Bigot, A. Bilandzic, G. Bíró, S. Biswas, N. Bize, Justin Thomas Blair, D. Blau, Mihail Bogdan Blidaru, Nora Bluhme, C. Blume, F. Bock, T. Bodova, J. Bok, L. Boldizsár, M. Bombara, Peter Matthew Bond, G. Bonomi, H. Borel, A. Borissov, A. G. Borquez Carcamo, E. Botta, Y. E. M. Bouziani, L. Bratrud, P. Braun‐Munzinger, M. Bregant, M. Broz, G. Bruno, Valentin Dimitrov Buchakchiev, M. D. Buckland, D. Budnikov, H. Buesching, S. Bufalino, P. Buehler, N. Burmasov, Edith Zinhle Buthelezi, Aleksandr Bylinkin, S. A. Bysiak, Juan Carlos Cabanillas Noris, M. F. T. Cabrera, H. Caines, A. Calivà, E. Calvo Villar, Juan Manuel Mejia Camacho, P. Camerini, Fabio de Moraes Canedo, Sierra Lisa Weyhmiller, Mihai Carabaș, Aitor Amatriain Carballo, F. Carnesecchi, R. Caron, L. A. D. Carvalho, Javier Ernesto Castillo Castellanos, Matteo Castoldi, F. Catalano, Samuele Cattaruzzi, Rebecca Cerri, I. Chakaberia, Pritam Chakraborty, S. Chandra, S. Chapeland, M. Chartier, Souvik Chattopadhay, Meiyi Chen, T. Cheng, C. Cheshkov, Davide Chiappara, Vasco Miguel Chibante Barroso, David Dobrigkeit Chinellato, E. S. Chizzali, J. Cho, S. Cho, P. Chochula, Zuzanna Anna Chochulska, Dhrubajyoti Choudhury, S. Choudhury, P. Christakoglou, Christian Holm Christensen, P. Christiansen, T. Chujo, M. Ciacco, C. Cicalò, F. Cindolo, Michael Rudolf Ciupek, Giulia Clai, F. Colamaria, Jonathan Samuel Colburn, D. Colella, Angelo Colelli, M. Colocci, M. Concas, G. Conesa Balbastre, Zaida Conesa Del Valle, G. Contin, J. G. Contreras, M. L. Coquet, P. Cortese, M. R. Cosentino, Filippo Costa, S. Costanza, Corentin Cot, P. Crochet, Maciej Marek Czarnynoga, A. Dainese, Gautam Dange, Meike Charlotte Danisch, A. Danu, P. Das, S. Das, A. Dash, Sadhana Dash, Annalisa De Caro, G. de Cataldo, J. de Cuveland, A. De Falco, D. De Gruttola, N. De Marco, C. De Martín, S. De Pasquale, Rohaan Deb, R. Del Grande, L. Dello Stritto, W. Deng, Kyle Christian Devereaux, P. Dhankher, D. Di Bari, Antonio Di Mauro, B. Di Ruzza, Batoul Diab, Raul Arteche Diaz, Yanchun Ding, Janik Ditzel, R. Divià, Oeystein Djuvsland, U. Dmitrieva, A. Dobrin, Benjamin Dönigus, Jan Michal Dubinski, A. Dubla, P. Dupieux, N. Dzalaiova, Tabea Maria Eder, R. J. Ehlers, Florian Eisenhut, Ren Ejima, D. Elia, B. Erazmus, F. Ercolessi, B. Espagnon, G. Eulisse, D. Evans, S. Evdokimov, L. Fabbietti, M. Faggin, J. Faivre, Feng Fan, W. Fan, A. Fantoni, M. Fasel, Г. Феофилов, Arturo Fernandez Tellez, L. Ferrandi, M. B. Ferrer, A. Ferrero, C. Ferrero, A. Ferretti, Victor Jose Gaston Feuillard, V. Filova, D. Finogeev, F. M. Fionda, Erlend Flatland, F. Flor, Amanda Nicole Flores, S. Foertsch, I. Fokin, S. Fokin, Umberto Follo, E. Fragiacomo, E. Frajna, U. Fuchs, N. Funicello, C. Furget, A. Furs, T. Fusayasu, Jens Joergen Gaardhoeje, M. Gagliardi, Alberto Martin Gago Medina, Tanu Gahlaut, Carlos Duarte Galvan, Sarjeeta Gami, D. R. Gangadharan, P. Ganoti, C. Garabatos, Josue Martinez Garcia, Tonatiuh García Chàvez, Edmundo Javier Garcia-Solis, Corrado Gargiulo, P. Gasik, Hari Mohan Gaur, A. Gautam, Maria Beatriz de Leone Gay, M. B. Gay Ducati, M. Germain, Roman August Gernhaeuser, Chandrasekhar Ghosh, Marco Giacalone, Giulia Gioachin, Sourav Kanti Giri, P. Giubellino, P. Giubilato, Aude Marie Camille Glaenzer, P. Glässel, Ewa Glimos, Daniel Jia Qin Goh, Victor Luis Gonzalez Sebastian, Pavel Gordeev, M. Gorgoń, Kangkan Goswami, Sven Gotovac, Varlen Grabski, L. K. Graczykowski, E. Grecka, A. Grelli, Costin Grigoras, V. Grigoriev, S. Grigoryan, F. Grosa, Jan Fiete Grosse-Oetringhaus, R. Grosso, D. Grund, Nadine Alice Gruenwald, Gabriel Garcia Guardiano, R. Guernane, M. Guilbaud, K. Gulbrandsen, Jesper Jan Walter Karlsson Gumprecht, Tuba Gundem, T. Gunji, Wenda Guo, A. Gupta, R. Gupta, Rashi Gupta, K. Gwizdziel, L. Gyulai, C. Hadjidakis, Fakhar Ul Haider, Sara Haidlova, Mintu Haldar, H. Hamagaki, Y. Han, Brian Gerald Hanley, R. Hannigan, Joachim Hansen, M. R. Haque, John William Harris, Austin Vincent Harton, M. V. Hartung, Hadi Hassan, D. Hatzifotiadou, Philip Hauer, L. B. Havener, Ernst Hellbär, Haavard Helstrup, Marvin Hemmer, T. Herman, Sabrina Gabrielle Hernandez, Gerardo Antonio Herrera Corral, S. Herrmann, K. F. Hetland, B. Heybeck, H. Hillemanns, B. Hippolyte, Isis Pihn Marie Hobus, Felix Willi Hoffmann, B. Hofman, M. Horst, Adrian Horzyk, Yongzhen Hou, P. Hristov, Patrick Huhn, Laura Maria Huhta, T. J. Humanic, A. Hutson, D. Hutter, R. Ilkaev, Radiy Ilkaev, M. Inaba, Gian Michele Innocenti, M. Ippolitov, А. Исаков, T. Isidori, Md Samsul Islam, Semen Iurchenko, Marian Ivanov, M. Ivanov, В. Иванов, K. E. Iversen, M. Jabłoński, B. Jacak, N. Jacazio, Peter Martin Jacobs, Slavka Jadlovská, Ján Jadlovský, S. Jaelani, Cristiane Jahnke, Monika Joanna Jakubowska, M. A. Janik, Thomas Janson, Su-Jeong Ji, S. Jia, T. Jiang, Alom Antonio Paz Jimenez, F. Jonas, Daniel Matthew Jones, J. M. Jowett, J. Jung, M. Jung, A. Junique, A. Jusko, J. Kaewjai, P. Kaliňák, A. Kalweit, Ayben Karasu Uysal, D. Karatovic, Nikolaos Karatzenis, O. Karavichev, T. Karavicheva, E. Karpechev, Maja Jadwiga Karwowska, U. Kebschull, M. Keil, B. Ketzer, Johannes Keul, Swapnesh Santosh Khade, A. M. Khan, S. Khan, A. Khanzadeev, Y. Kharlov, A. Khatun, A. Khuntia, Z. Khuranova, B. Kileng, B. Kim, C. Kim, D. J. Kim, Dongguk Kim, E Kim, J. Kim, J. Kim, Junlee Kim, Minjung Kim, Hyunsoo Kim, Taejun Kim, K. Kimura, A. Kirkova, S. Kirsch, I. Kisel, S. Kiselev, A. Kisiel, J. L. Klay, J. Klein, Spencer Robert Klein, C. Klein-Bösing, Matthias Kleiner, T. Klemenz, Alexander Kluge, C. Kobdaj, Ryotaro Kohara, Thorsten Sven Kollegger, Andrey Kondratyev, N. Kondratyeva, Joshua Leon Konig, Stephan Alexander Konigstorfer, P. J. Konopka, G. Kornakov, M. Korwieser, Sebastian Dominik Koryciak, Cornelia Koster, Artem Kotliarov, Nino Kovacic, V. Kovalenko, M. Kowalski, V. Kozhuharov, Grigory Kozlov, I. Králik, A. Kravčáková, Luboš Krčál, M. Krivda, F. Křížek, Katarina Krizkova Gajdosova, C. Krug, M. Krüger, Diana Mária Krupová, E. Kryshen, V. Kučera, C. Kuhn, P. G. Kuijer, Takuya Kumaoka, Deekshit Kumar, L. Kumar, Navneet Kumar, S. Kumar, S. Kundu, P. Kurashvili, A. Kurepin, A. Kuryakin, S. Kushpil, Vladislav Kuskov, Monika Kutyła, Andrey Kuznetsov, M. J. Kweon, Y. Kwon, Sarah Louise La Pointe, P. La Rocca, Anantachai Lakrathok, M. Lamanna, Aimeric Robin Landou, Rune Langoy, P. Larionov, E. Laudi, L. Lautner, Rafael Angel Narcio Laveaga, R. Lavicka, R. Lea, Hyungjun Lee, I. Legrand, G. Legras, Johannes Lehrbach, Alexian Marc Lejeune, Tomasz Marcin Lelek, R. C. Lemmon, Ildefonso Leon Monzon, M. M. Lesch, Ezra Douglas Lesser, P. Lévai, Mingze Li, Peiyu Li, Xiaomei Li, Beatrice Eva Liang-Gilman, J. Lien, R. Lietava, I. Likmeta, Bong-Hwi Lim, Sanghoon Lim, V. Lindenstruth, C. Lippmann, Dominika Líšková, D. H. Liu, J. Liu, Gianni Shigeru Setoue Liveraro, Ingrid Mckibben Lofnes, C. Loizides, S. Lökòs, J. Lömker, X. Lopez, Ernesto Lopez Torres, Clement Lotteau, P. Lu, Zhiyong Lu, F. V. Lugo, Jens Robert Luhder, Grazia Luparello, Yugang Ma, M. Mager, A. Maire, E. M. Majerz, M. Makariev, M. Malaev, G. Malfattore, N. M. Malik, Salman Khurshid Malik, D. Mallick, Neelkamal Mallick, G. Mandaglio, Sushobhan Kumar Mandal, A. Manea, V. Manko, F. Manso, V. Manzari, Y. Mao, R. W. Marcjan, G. V. Margagliotti, A. Margotti, Ana Maria Marin, C. Markert, Ciro Fabian Bermudez Marquez, P. Martinengo, Mario Ivan Martinez Hernandez, G. Martınez García, M. P. P. Martins, S. Masciocchi, M. Masera, A. Masoni, L. Massacrier, Olaf Massen, A. Mastroserio, S. Mattiazzo, A. Matyja, F. Mazzaschi, M. Mazzilli, Y. Melikyan, Maria Monalisa de Melo Paulino, Arturo Alejandro Menchaca-Rocha, J. E. M. Mendez, E. Meninno, A. S. Menon, Marius Wilm Menzel, M. Meres, L. Micheletti, Darius Mihai, Dimitar Lubomirov Mihaylov, Konstantin Mikhaylov, N. Minafra, D. Miśkowiec, A. Modak, B. Mohanty, M. Mohisin Khan, Mikael Andreas Molander, M. M. Mondal, Shirajum Monira, C. Mordasini, Denise Aparecida Moreira De Godoy Willems, I. Morozov, A. Morsch, Teo Mrnjavac, V. Muccifora, S. Muhuri, James Declan Mulligan, A. Mulliri, Marcelo Gameiro Munhoz, Robert Helmut Münzer, Hikari Murakami, S. Murray, L. Musa, J. Mušinský, J. W. Myrcha, Bharati Naik, Anjali Ila Nambrath, Basanta Kumar Nandi, R. Nania, E. Nappi, Adrian Fereydon Nassirpour, Vlad-Iulius Nastase, A. Nath, S. Nath, C. Nattrass, M. N. Naydenov, Alexandra Neagu, Adrian-Eduard Negru, Evgeniia Nekrasova, L. Nellen, Roman Nepeivoda, Sigurd Nese, Nicola Nicassio, B. S. Nielsen, Emil Gorm Nielsen, S. Nikolaev, S. Nikulin, Vladimir Nikulin, Francesco Noferini, S. Y. Noh, P. Nomokonov, J. Norman, N. Novitzky, P. Nowakowski, A. Nyanin, J. Nystrand, Saehanseul Oh, A. Ohlson, Vitaly Okorokov, J. Oleniacz, A. Önnerstad, C. Oppedisano, Antonio Ortiz Velasquez, J. Otwinowski, Motomi Oya, K. Oyama, Sonali Padhan, Davide Pagano, G. Paić, S. Paisano-Guzmán, A. Palasciano, Iaroslav Panasenko, S. Panebianco, Caterina Pantouvakis, Hanseo Park, J. Park, S. Park, Jasper Elias Parkkila, Yash Patley, Rajendra Nath Patra, B. Paul, H. Pei, Thomas Peitzmann, X. Peng, M. Pennisi, Stefania Perciballi, Dmitry Yurevich Peresunko, Guillermo Mesa Perez, Yury Pestov, Mikkel Tornhoj Petersen, V. Petrov, M. Petrovici, S. Piano, M. Pikna, Philippe Pillot, O. Pinazza, L. Pinsky, C. Pinto, S. Pisano, Mateusz Andrzej Ploskon, M. Planinić, Fabian Pliquett, D. K. Plociennik, M. G. Poghosyan, Boris Polishchuk, B. Polichtchouk, S. Politano, N. Poljak, A. Pop, Sarah Julie Porteboeuf, S. Porteboeuf-Houssais, V. Pozdniakov, Irandheny Yoval Pozos, Kshitish Kumar Pradhan, S. K. Prasad, Suraj Prasad, R. Preghenella, F. Prino, C. A. Pruneau, I. Pshenichnov, M. Puccio, Sara Pucillo, Shi Qiu, L. Quaglia, Aswathy Menon Kavumpadikkal Radhakrishnan, S. Ragoni, Ananya Rai, Andry Malala Rakotozafindrabe, L. Ramello, M. Rasa, S. S. Räsänen, R. Rath, Max Philip Rauch, I. Ravasenga, K. F. Read, C. Reckziegel, A. Redelbach, K. Redlich, C. A. Reetz, Hector David Regules Medel, Attiq Ur Rehman, F. Reidt, Haakon Andre Reme-Ness, K. Reygers, A. Riabov, V. Riabov, R. Ricci, Matthias Rudolph Richter, Anton Albert Riedel, W. Riegler, A. G. Riffero, Michele Rignanese, C. Ripoli, Catalin-Lucian Ristea, Manuel Viqueira Rodriguez, Mario Rodriguez Cahuantzi, S. A. Rodríguez Ramírez, K. Røed, Roman Rogalev, Elena Rogochaya, Tim Sebastian Rogoschinski, D. Røhr, Dieter Roehrich, Solangel Rojas Torres, P. S. Rokita, Gleb Romanenko, F. Ronchetti, Edgar Dominguez Rosas, K. Rosłon, Andrea Rossi, Ankhi Roy, Subhadeep Roy, N. Rubini, Justus Arne Rudolph, D. Ruggiano, R. Rui, Pawel Grzegorz Russek, R. Russo, A. Rustamov, E. Ryabinkin, Y. Ryabov, Andrzej Krzysztof Rybicki, Jaehyeok Ryu, W. Rzesa, Bianca Sabiu, S. Sadovsky, J. Saetre, S. Saha, Bhagyarathi Sahoo, R. Sahoo, Sarita Sahoo, Dushmanta Sahu, P. K. Sahu, J. Saini, Klaudia Tropp, K. Sajdakova, S. Sakai, M. P. Salvan, S. Sambyal, D. Samitz, I. Sanna, Thiago Badaro Saramela, Debojit Sarkar, P. Sarma, Valerio Sarritzu, Valentina Mantovani Sarti, M. H. P. Sas, S. Sawan, E. Scapparone, Johann Joachim Schambach, Horst Sebastian Scheid, C. Schiaua, R. Schicker, Felix Schlepper, Alexander Schmah, C. Schmidt, M. Schmidt, Martin Schmidt, Nicolas Schmidt, Austin Robert Schmier, Romain Schotter, Alexander Wilhelmi, J. Schukraft, K. Schweda, G. Scioli, E Scomparin, Janet Elizabeth Seger, Yuko Sekiguchi, Daiki Sekihata, Mariia Selina, I. Selyuzhenkov, S. Senyukov, Jin Joo Seo, D. Serebryakov, L. Serkin, L. Šerkšnytė, A. Sevcenco, Tebogo Joyce Shaba, Alexandre Shabetai, Ruben Shahoyan, A. Shangaraev, Binti Sharma, D. Sharma, H. Sharma, M. Sharma, Samarth Sharma, S. Sharma, U. Sharma, Afnan Shatat, Oveis Sheibani, Kenta Shigaki, Maya Hachiya Shimomura, Jaehyuck Shin, S. Shirinkin, Qiye Shou, Y. Sibiriak, Sabyasachi Siddhanta, T. Siemiarczuk, Tiago Fiorini da Silva, D. Silvermyr, Tawanchat Simantathammakul, R. Simeonov, Balwan Singh, Bhawani Singh, Kamaljeet Singh, Ranbir Singh, Randhir Singh, R. Singh, S. Singh, Vivek Singh, V. Singhal, Tinku Sarkar - Sinha, B. Sitár, M. Sitta, Bernhard Skaali, Georgijs Skorodumovs, N. Smirnov, R. J. M. Snellings, Emilie Haugland Solheim, C. Sonnabend, Jorine Sonneveld, F. Soramel, Analyce Bella Soto-Hernandez, R. Spijkers, Iwona Anna Sputowska, J. Staa, Johanna Stachel, I. Stan, Patrick John Steffanic, Tim Stellhorn, S. F. Stiefelmaier, D. Stocco, I. Storehaug, Nicolas Justus Strangmann, Peter Stratmann, Sofia Strazzi, A. Sturniolo, Christos Pliatskas Stylianidis, Alexandre Alarcon Do Passo Suaide, Christophe Pierre Suire, A. Suiu, M. Sukhanov, M. Šuljić, Rishat Sultanov, Vikash Sumberia, S. Sumowidagdo, Maciej Szymkowski, Lorenzo Hernandez Tabares, Seyed Farid Taghavi, J. Takahashi, Ganesh Jagannath Tambave, Siyu Tang, Z. Tang, Daniel Jesus Tapia Takaki, Nicolae Ţăpuş, Lucia Anna Tarasovicova, Madalina-Gabriela Tarzila, A. Tauro, A. Tavira García, Guillermo Tejeda Munoz, Livia Terlizzi, C. Terrevoli, S. Thakur, Magnus Thoegersen, D. Thomas, Anatoly Tikhonov, Nicolas Tiltmann, A. R. Timmins, Milan Tkáčik, Tomas Tkacik, A. Toia, Ryoka Tokumoto, Sofia Tomassini, Keisuke Tomohiro, N. Topilskaya, M. Toppi, V. V. Torres, Arianna Grisel Torres Ramos, A. Trifirò, Triloki Triloki, A. S. Triolo, S. Tripathy, Tulika Tripathy, S. Trogolo, Victor Trubnikov, W. H. Trzaska, T. P. Trzcinski, Christina Tsolanta, Ran Tu, A. Tumkin, R. Turrisi, T. S. Tveter, K. Ullaland, B. Ulukutlu, Sahil Upadhyaya, A. Uras, G. L. Usaı́, Martin Vala, N. Valle, Lennart van Doremalen, M. van Leeuwen, C. A. van Veen, Roelof Jan Gijs van Weelden, Pierre Vande Vyvre, Dezso Varga, Z. Varga, Paola Vargas Torres, M. Vasileiou, A. Vasiliev, Oton Vazquez Doce, Omar Vazquez Rueda, V. Vechernin, E. Vercellin, R. Verma, Róbert Vértesi, M. Verweij, L. Vickovic, Zabulon Vilakazi, Orlando Villalobos Baillie, Anna Villani, А. Виноградов, T. Virgili, Maxim Mikael Olavi Virta, A. Vodopyanov, Benedikt Voelkel, Martin Andreas Volkl, Sergey Voloshin, G. Volpe, B. von Haller, I. Vorobyev, N. Vozniuk, J. Vrláková, Jie Wan, C. Wang, Dongfang Wang, Y. Wang, Yubiao Wang, Zhengqing Wang, A. Wegrzynek, Felix Thomas Weiglhofer, S. C. Wenzel, J. P. Wessels, Piotr Kazimierz Wiacek, J. Wiechuła, J. Wikne, G. Wilk, J. Wilkinson, Guido Alexander Willems, B. Windelband, M. Winn, Josephina Rae Wright, Wenya Wu, Y. Wu, Zhenjun Xiong, R. Xu, A. Yadav, Arun Kumar Yadav, Y. Yamaguchi, Shiming Yang, S. Yano, Emma Rose Yeats, Zhongbao Yin, I.-K. Yoo, Jin Hee Yoon, Hyeonjin Yu, Shiming Yuan, A. Yuncu, V. Zaccolo, C. Zampolli, F. Zanone, N. Zardoshti, A. Zarochentsev, P. Závada, Nikolay Zavyalov, M. Zhalov, Biao Zhang, C. Zhang, L. Zhang, Maolin Zhang, Mingyu Zhang, S. Zhang, Xiaoming Zhang, Yifei Zhang, Z. Zhang, M. Zhao, Vladimir Zherebchevskii, Zhi Yu, Daicui Zhou, Y. Zhou, J. Zhu, Senjie Zhu, Ya Zhu, Stefan Cristi Zugravel, N. Zurlo, ALICE Collaboration
0Citations signalées, ce qui n’est pas une note de qualité
12Institutions déclarées
2Pays d’affiliation déclarés
Rattachement africain : fr, de.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The ALICE Collaboration at the CERN LHC has measured the inclusive production cross section of isolated photons at midrapidity as a function of the photon transverse momentum ($p_{\textrm{T}}^{\gamma }$), in Pb–Pb collisions in different centrality intervals, and in pp collisions, at centre-of-momentum energy per nucleon pair of $\sqrt{s_{\textrm{NN}}}~=~5.02$ TeV. The photon transverse momentum range is between 10–14 and 40–140 GeV/$c$, depending on the collision system and on the Pb–Pb centrality class. The result extends to lower $p_{\textrm{T}}^{\gamma }$ than previously published results by the ATLAS and CMS experiments at the same collision energy. The covered pseudorapidity range is $|\eta ^{\gamma } | <0.67$. The isolation selection is based on a charged particle isolation momentum threshold $p_{\textrm{T}}^\mathrm{iso,~ch} = 1.5$ GeV/$c$ within a cone of radii $R=0.2$ and 0.4. The nuclear modification factor is calculated and found to be consistent with unity in all centrality classes, and also consistent with the HG-PYTHIA model, which describes the event selection and geometry biases that affect the centrality determination in peripheral Pb–Pb collisions. The measurement is compared to next-to-leading order perturbative QCD calculations and to the measurements of isolated photons and Z$^{0}$ bosons from the CMS experiment, which are all found to be in agreement.
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Les sujets associés
High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions