First measurement of $\mathbf{\rm \Xi_{\rm c}^{0}}$ production in Pb$-$Pb collisions at $\mathbf{\sqrt{\textit{s}_{\tiny NN}}}$ = 5.02 TeV
Dana Ali Hassan Abdallah, Ibrahim Jaser Abualrob, Shreyasi Acharya, Kshitij Agarwal, G. Aglieri Rinella, Luca Aglietta, Neelima Agrawal, Zubayer Ahammed, Shakeel Ahmad, Ishaan Ahuja, Zulkaida Akbar, Valentina Akishina, Mohammad Al-Turany, B. Alessandro, Abdul Rahman Alfarasyi, Jose Ruben Alfaro Molina, Bushra Ali, A. Alici, J. Alme, Giacomo Alocco, Torsten Alt, Igor Altsybeev, Cristian Andrei, Nicodemos Andreou, A. Andronic, Massimo Angeletti, Venelin Anguelov, F. Antinori, Pietro Antonioli, Nicole Apadula, Harald Appelshaeuser, S. Arcelli, R. Arnaldi, Ionut Cristian Arsene, Mesut Arslandok, A. Augustinus, R. Averbeck, M. D. Azmi, Byungyun Kong, Hitoshi Baba, Akash Raj John Babu, A. Badalà, Joonsuk Bae, Yunseul Bae, Y. W. Baek, Xiaozhi Bai, R. Bailhache, Yoshini Bailung, R. Bala, A. Baldisseri, Bartosz Baliś, Shubham Bangalia, Koushik Barai, Veronika Barbasova, F. Barile, Luca Barioglio, Maria Barlou, Banajit Barman, G. G. Barnaföldi, Lee Stuart Barnby, Emilie Martine Barreau, Valerie Ramillien Barret, Leonardo Barreto De Oliveira Campos, Klaus Barth, Esther Bartsch, N. Bastid, G. Batigne, Daniel Battistini, B. Batyunya, Luca Baudino, Dibakar Bauri, Jose Luis Bazo Alba, I. G. Bearden, Debadatta Behera, Swadhin Behera, Maria Alejandra Calmon Behling, Iouri Belikov, Valerio Di Bella, Francesca Bellini, R. Bellwied, Lucina Gabriela Espinoza Beltran, Yael Antonio Vasquez Beltran, G. Bencédi, Oussama Benchikhi, Adel Bensaoula, S. Beolè, Anastasia Berdnikova, Luisa Bergmann, Lorenzo Bernardinis, Latchezar Betev, Partha Pratim Bhaduri, Tushar Bhalla, A. Bhasin, Buddhadeb Bhattacharjee, L. Bianchi, J. Bielčík, J. Bielčíková, A. Bilandzic, Anna Binoy, Gabor Biro, Saikat Biswas, Mihail Bogdan Blidaru, Nora Bluhme, C. Blume, F. Bock, Tea Bodova, Laszlo Boldizsar, M. Bombara, Peter Matthew Bond, G. Bonomi, H. Borel, A. Borissov, Andres Gerardo Borquez Carcamo, E. Botta, Naseem Bouchhar, Youssef El Mard Bouziani, Diana Catalina Brandibur, Lars Bratrud, P. Braun‐Munzinger, M. Bregant, Michal Broz, G. Bruno, Valentin Dimitrov Buchakchiev, Matthew Daniel Buckland, Guilherme Felipe Budiski, Henner Buesching, S. Bufalino, P. Bühler, Nazar Burmasov, Edith Zinhle Buthelezi, Aleksandr Bylinkin, Olga Bessidskaia Bylund, Juan Carlos Cabanillas Noris, Maria Fernanda Torres Cabrera, Helen Louise Caines, Alberto Caliva, Ernesto Calvo Villar, P. Camerini, Maria Teresa Camerlingo, Stefano Cannito, Sierra Lisa Cantway, Mihai Carabaș, F. Carnesecchi, Christopher Alfred Carr, Leopoldo Abranches De Carvalho, J. Castillo Castellanos, Matteo Castoldi, F. Catalano, Samuele Cattaruzzi, Rebecca Cerri, Irakli Chakaberia, Pritam Chakraborty, Justin Wei Ong Chan, Sinjini Chandra, S. Chapeland, Marielle Chartier, Souvik Chattopadhay, Meiyi Chen, Tiantian Cheng, Madalin Ilie Cherciu, C. Cheshkov, Davide Chiappara, V. Chibante Barroso, David Dobrigkeit Chinellato, Fabrizio Chinu, Jaeyoon Cho, Soyeon Cho, Peter Chochula, Zuzanna Anna Chochulska, Changhwan Choi, Pryianka Choudhary, P. Christakoglou, Peter Christiansen, Tatsuya Chujo, Barbara Chytla, Mario Ciacco, C. Cicalò, Gabriele Cimador, F. Cindolo, Fabio Colamaria, D. Colella, Angelo Colelli, Manuel Colocci, Matteo Concas, G. Conesa Balbastre, Z. Conesa del Valle, G. Contin, J. G. Contreras, Maurice Coquet, P. Cortese, Mauro Rogerio Cosentino, Filippo Costa, Susanna Costanza, P. Crochet, Maciej Marek Czarnynoga, A. Dainese, E. Dall’Occo, Gautam Dange, Meike Charlotte Danisch, Andrea Danu, Aizat Daribayeva, Prottay Das, Supriya Das, A. Dash, Sadhana Dash, Annalisa De Caro, G. de Cataldo, Jan De Cuveland, A. De Falco, D. De Gruttola, Nora De Marco, Chiara De Martin, S. De Pasquale, Rohaan Deb, Raffaele Del Grande, Luigi Dello Stritto, Geovane Grossi Araujo de Souza, Preeti Dhankher Lesser, D. Di Bari, Marcello Di Costanzo, Antonio Di Mauro, B. Di Ruzza, Batoul Diab, Kalina Dimitrova, Yanchun Ding, Janik Ditzel, R. Divià, Uliana Dmitrieva, Alexandru Florin Dobrin, Benjamin Donigus, Lars Döpper, Lukasz Janusz Drzensla, Andrea Dubla, P. Dupieux, Tabea Maria Eder, Emma Charlotte Ege, Ehlers, Raymond James, III, Florian Eisenhut, Ren Ejima, D. Elia, B. Erazmus, Francesca Ercolessi, B. Espagnon, G. Eulisse, David Evans, L. Fabbietti, Gaia Fabbri, Mattia Faggin, J. Faivre, Wenqing Fan, Yixin Fan, Tao Fang, A. Fantoni, A. Feliciello, Wenhui Feng, Roberta Ferioli, A. Fernández Téllez, Bamina Fernando, Lucas Ferrandi De Oliveira, A. Ferrero, C. Ferrero, A. Ferretti, F. M. Fionda, Amanda Nicole Flores, Siegfried Valentin Foertsch, Ilya Fokin, Umberto Follo, Robert Forynski, E. Fragiacomo, Henrik Fribert, Ulrich Fuchs, Davide Fuligno, Nicola Funicello, C. Furget, T. Fusayasu, Jens Joergen Gaardhoeje, M. Gagliardi, A. M. Gago, Tanu Gahlaut, Carlos Duarte Galvan, Sarjeeta Gami, Jose Maria Garabatos Cuadrado, Josue Martinez Garcia, E. García-Solis, Sara Garetti, Corrado Gargiulo, P. Gasik, Amrit Gautam, Maria Beatriz De Leone Gay, M. Germain, Roman August Gernhaeuser, Marco Giacalone, Giulia Gioachin, Sourav Kanti Giri, P. Giubellino, P. Giubilato, Peter Glassel, Ewa Glimos, Maria Gabriela Ferreira Siqueira Amaral Gomes, Laura Gonella, V. González, Marek Boguslaw Gorgon, Kangkan Goswami, S. Gotovac, Varlen Grabski, Lukasz Kamil Graczykowski, Ekaterina Grecka, Alessandro Grelli, Costin Grigoras, S. Grigoryan, O.S. Groettvik, Malte Grönbeck, F. Grosa, Simon Gross-Bolting, Jan Fiete Grosse-Oetringhaus, R. Grosso, Nadine Alice Gruenwald, R. Guernane, Maxime Rene Joseph Guilbaud, Jesper Jan Walter Karlsson Gumprecht, Tuba Gundem, Taku Gunji, Jiacheng Guo, Wenda Guo, Anik Gupta, Ramni Gupta, Rashi Gupta, Katarzyna Gwizdziel, Laszlo Gyulai, Takashi Hachiya, Cynthia Marie Hadjidakis, Fakhar Ul Haider, Sara Haidlova, Mintu Haldar, Wooseok Ham, H. Hamagaki, Ryan James Hamilton, Younghoon Han, Ryan Patrick Hannigan, Joachim Hansen, John William Harris, A. Harton, Michael Volker Hartung, Afrina Hasan, Hadi Hassan, D. Hatzifotiadou, Philip Hauer, L. B. Havener, Ernst Hellbär, Haavard Helstrup, Marvin Hemmer, Sabrina Gabrielle Hernandez, Gerardo Antonio Herrera Corral, Kristin Fanebust Hetland, Benedict Heybeck, H. Hillemanns, Boris Hippolyte, Isis Pihn Marie Hobus, Felix Willi Hoffmann, Younghoo Hong, Adrian Horzyk, Yongzhen Hou, P. Hristov, Laura Maria Huhta, T. J. Humanic, Vendulka Humlova, Marko Husar, Dirk Hutter, Minyoung Chris Hwang, Motoi Inaba, Artem Isakov, Tommaso Isidori, Md Samsul Islam, M. Ivanov, Kaare Endrup Iversen, Miroslaw Rafal Jablonski, Barbara Jacak, N. Jacazio, Peter Martin Jacobs, Anna Jadlovska, Slavka Jadlovska, S. Jaelani, J. I. Jäger, Cristiane Jahnke Fiorini Da Silva, Monika Joanna Jakubowska Jachowicz, E. Jamro, Diana Maria Janik, M. A. Janik, Carolina Anna Jauch, Su-Jeong Ji, Yuanjing Ji, Shihai Jia, Tao Jiang, Alom Antonio Paz Jimenez, Shangtai Jin, Zsófia Jólesz, Florian Jonas, Daniel Matthew Jones, John Jowett, Jerome Jung, Michael Jung, A. Junique, Jakub Juracka, Jetnipit Kaewjai, Anouk Ilka Paulina Kaiser, Peter Kalinak, A. Kalweit, Hyeongbin Kang, Ayben Karasu Uysal, Nikolaos Karatzenis, Tatiana Karavicheva, Maja Jadwiga Karwowska, Varchaswi Kashyap, M. Keil, B. Ketzer, Johannes Keul, Swapnesh Santosh Khade, Arvind Khuntia, Zhanna Khuranova, Bjarte Wang-Kileng, Beomkyu Kim, Dong Jo Kim, Dongguk Kim, Eun Joo Kim, Giyeong Kim, Hyunwoo Kim, Jaehyun Kim, J. Kim, Jungeol Kim, Junlee Kim, Minjae Kim, Minjung Kim, Se Yong Kim, Taejun Kim, Julius Thomas Kinner, I. Kisel, A. Kisiel, J. L. Klay, J. Klein, Spencer Robert Klein, Christian Klein-Boesing, Matthias Kleiner, Alexander Kluge, Morgan Bailey Knuesel, C. Kobdaj, Ryotaro Kohara, Andrey Kondratyev, Joshua Leon Konig, Piotr Jan Konopka, Georgui Kornakov Van, Maximilian Korwieser, Cornelia Koster, Artem Kotliarov, Nino Kovacic, M. Kowalski, V. Kozhuharov, Grigory Kozlov, Ivan Kralik, A. Kravčáková, Marta Adamina Sailer, Lubos Krcal, F. Křížek, Katarina Krizkova Gajdosova, Cristiano Krug, M. Krüger, E. Kryshen, Vit Kucera, C. Kuhn, Deekshit Kumar, L. Kumar, Navneet Kumar, S. Kumar, S. Kundu, Menghsiu Kuo, P. Kurashvili, Shunsuke Kurita, Svetlana Kushpil, Andrey Kuznetsov, M. J. Kweon, Youngil Kwon, Sarah Louise La Pointe, P. La Rocca, Anantachai Lakrathok, Stanislas Lambert, Aimeric Robin Landou, Rune Langoy, Pavel Larionov, E. Laudi, L. Lautner, Rafael Angel Narcio Laveaga, Roman Lavicka, R. Lea, Jasmin Barbara Lebert, Hyungjun Lee, Seungju Lee, I. Legrand, Gauthier Legras, Alexian Marc Lejeune, Tomasz Marcin Lelek, I. León Monzón, Marcel Markus Lesch, Peter Levai, Mingze Li, Peiyu Li, Xiaomei Li, Zheng Liang, Beatrice Eva Liang-Gilman, J. Lien, R. Lietava, Iris Likmeta, Bong-Hwi Lim, Hyunji Lim, Sanghoon Lim, Yuri Do Nascimento Lima, Shoulong Lin, V. Lindenstruth, Rocco Liotino, C. Lippmann, Dominika Liskova, Donghai Liu, Jian Liu, Yunfan Liu, Gianni Shigeru Setoue Liveraro, Ingrid Mckibben Lofnes, Constantinos Loizides, Sandor Lokos, Johanna Lomker, X. Lopez, Ernesto Lopez Torres, Clement Lotteau, Pengzhong Lu, Weijian Lu, Zhiyong Lu, Oleksii Lubynets, Giorgio Alberto Lucia, Fabiola Viridiana Lugo Porras, Jiaqi Luo, G. Luparello, J. Friedrich, Yugang Ma, Retsilisitsoe Mabitsela, Vojtech Machacek, Magnus Mager, Maximilian Mahlein, A. Maire, Emilia Maria Majerz, Martin Vasilev Makariev, Giovanni Malfattore, Nasir Mehdi Malik, Nida Malik, D. Mallick, Neelkamal Mallick, Beymar Mamani Mamani, G. Mandaglio, Subhadeep Mandal, Sushobhan Kumar Mandal, Alexandru Manea, Rafael Stefan Manhart, Ayan Kumar Manna, F. Manso, Georgios Mantzaridis, V. Manzari, Yaxian Mao, Robert Waclaw Marcjan, G. V. Margagliotti, Anselmo Margotti, Ana Maria Marin, Christina Markert, Paolo Martinengo, Mario Ivan Martinez Hernandez, Maria Paula Martins Palhares, S. Masciocchi, M. Masera, A. Masoni, L. Massacrier, Olaf Massen, A. Mastroserio, Lorenzo Mattei, S. Mattiazzo, A. Matyja, Jonathan Lozano Mayo, Francesco Mazzaschi, M. Mazzilli, Yury Melikyan, Maria Monalisa De Melo Paulino, A. Menchaca-Rocha, Jesus Eduardo Munoz Mendez, E. Meninno, Marius Wilm Menzel, Meredith Mckinley Pritchard, Michal Meres, L. Micheletti, Darius Mihai, Dimitar Lubomirov Mihaylov, Andreas Ulveseth Mikalsen, Konstantin Mikhaylov, Louise Millot, N. Minafra, D. Miśkowiec, Abhi Modak, B. Mohanty, M. Mohisin Khan, Mikael Andreas Molander, M. M. Mondal, Shirajum Monira, Denise Aparecida Moreira De Godoy Willems, Andreas Morsch, Cristian Moscatelli, Matsobane Alex Mothibi, Teo Mrnjavac, Stefanie Mrozinski, V. Muccifora, Sanjib Muhuri, A. Mulliri, M. G. Munhoz, Robert Helmut Münzer, L. Musa, Jan Musinsky, Julian Wojciech Myrcha, Bharati Naik, Anjali Ila Nambrath, Basanta Kumar Nandi, R. Nania, E. Nappi, Adrian Fereydon Nassirpour, Vlad-Iulius Nastase, Abhishek Nath, Nina Francesca Nathanson, Alexandra Neagu, L. Nellen, Roman Nepeivoda, Sigurd Nese, Nicola Nicassio, B. S. Nielsen, Emil Gorm Dahlbaek Nielsen, Yuto Nishida, Francesco Noferini, Hyeong-Woo Noh, Seoyoung Noh, Petr Nomokonov, Jaime Norman, Norbert Novitzky, J. Nystrand, Matthew Robert Ockleton, Masanori Ogino, Jongho Oh, S. Oh, Alice Elisabeth Ohlson, Masahiro Oida, Luca Aguiar de Oliveira, C. Oppedisano, Antonio Ortiz Velasquez, Hiroki Osanai, J. Otwinowski, Motomi Oya, K. Oyama, Sonali Padhan, D. Pagano, Valerio Pagliarino, G. Paić, Antonio Palasciano, Iaroslav Panasenko, Pravata Panigrahi, Caterina Pantouvakis, Hanseo Park, Jinhyun Park, Jonghan Park, Sangwoo Park, Tae Yong Park, Jasper Elias Parkkila, Preet Bhanjan Pati, Yash Patley, Rajendra Nath Patra, Jyoti Patter, Filip Pazdič, Hua Pei, T. Peitzmann, X. Peng, Stefania Perciballi, Guillermo Mesa Perez, Mihai Petrovici, S. Piano, Miroslav Pikna, P. Pillot, O. Pinazza, C. Pinto, S. Pisano, Mateusz Andrzej Ploskon, Alicja Plachta, M. Planinić, Damian Kacper Plociennik, Stefano Politano, Nikola Poljak, A. Pop, Sarah Julie Porteboeuf, Jakobus Stephanus Potgieter, Emily Grace Pottebaum, Irandheny Yoval Pozos, Kshitish Kumar Pradhan, S. K. Prasad, Suraj Prasad, R. Preghenella, F. Prino, C. A. Pruneau, M. Puccio, Sara Pucillo, S. Puławski, Luca Quaglia, Aswathy Menon Kavumpadikkal Radhakrishnan, Simone Ragoni, Andry Malala Rakotozafindrabe, Niveditha Ramasubramanian, L. 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Résumé fourni par la source
The ALICE Collaboration reports the first measurement of the production of prompt $\Xi_{\mathrm c}^{0}$ baryons in nucleus$-$nucleus collisions by analyzing data from $\mathrm{Pb}$$-$$\mathrm{Pb}$ collisions at $\sqrt{s_{\mathrm{\tiny NN}}}~=5.02~\mathrm{TeV}$. The production and transverse-momentum ($p_{\mathrm T}$) differential spectra of $\Xi_{\mathrm c}^{0}$ are particularly sensitive to the hadronization process and to strangeness production in the quark--gluon plasma formed in high-energy heavy-ion collisions. The $\Xi_{\mathrm c}^{0}$ baryons are reconstructed at midrapidity ($|y|<0.5$) in the transverse-momentum intervals $3<p_{\mathrm T}~<12$ GeV/$c$ and $4<p_{\mathrm T}~<12$ GeV/$c$ in the 0-10% and 30-50% centrality intervals, respectively. The nuclear modification factor ($R_{\mathrm{AA}}$) reaches values up to 3 in the interval $3<p_{\mathrm T}~<4~\mathrm{GeV}/c$} which is the largest value measured so far for charm hadrons. Model predictions are compatible with the measured $R_{\mathrm{AA}}$, while they underestimate the $p_{\mathrm T}$-differential production yield as well as the measured $\Xi_{\mathrm c}^{0}/\mathrm{D}^{0}$, $\Xi_{\mathrm c}^{0}/\Lambda_{\mathrm c}^{+}$, and $\Xi_{\mathrm c}^{0}/\mathrm{D}^{+}_{\mathrm s}$ yield ratios.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.