1. Λc+ Production and Baryon-to-Meson Ratios in pp and p -Pb Collisions at sNN=5.02 TeV at the LHC
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Rosario Turrisi, Wenjing Deng, Evgeny Kondratyuk, Tatiana Lazareva, Christian Holm Christensen, Hikari Murakami, Jørgen André Lien, William Edward Witt, Paolo Giubellino, Pierre Vande Vyvre, Philippe Crochet, Jaehyun Kim, Luigi Dello Stritto, In Kwon Yoo, Adam Tadeusz Wegrzynek, Sarah Louise La Pointe, Germano Bonomi, Alberto Martin Gago Medina, Bruno Espagnon, Ola Slettevoll Groettvik, Jan Jadlovsky, Shi Qiu, Jochen Klein, Jacek Tomasz Otwinowski, Oton Vazquez Doce, Zhanna Khabanova, Alexander Bolozdynya, Youngil Kwon, Julian Wojciech Myrcha, Arthur Willem Jean Gal, Laura Serksnyte, Rainer Arno Ernst Renfordt, Lucia Anna Husova, Andrey Zarochentsev, Petr Nomokonov, Liudmila Malinina, Trine Spedstad Tveter, Gianluca Aglieri Rinella, Ivan Kisel, David Horak, Rashmi Raniwala, Anantachai Lakrathok, Norbert Novitzky, Luca Quaglia, Sebastian Hornung, Claude Andre Pruneau, Lucas Altenkamper, Dmitry Budnikov, Roberto Barbera, Elena Botta, Zhongbao Yin, Jerome Jung, Igor Pshenichnov, Ramona Lea, Jonathan Samuel Colburn, Marten Ole Schmidt, I. Das, Yitao Wu, Hadi Hassan, Chiara Pinto, Philip Hauer, Ingrid Mckibben Lofnes, Rabi Soto Camacho, Jan Figiel, Alperen Yuncu, Claudiu Cornel Schiaua, Jose Luis Bazo Alba, Pablo Fierro Rojas, Maciej Slupecki, Jens Joergen Gaardhoeje, Ana Maria Marin, Klaus Barth, Andrea Danu, Guillaume Batigne, Massimo Angeletti, Deepa Thomas, Sukalyan Chattopadhyay, Marcello Lunardon, Anju Bhasin, Marco Giacalone, Alexandre Alarcon Do Passo Suaide, Min Jung Kweon, Alexander Akindinov, Kai Oliver Schweda, Robin Albert Andre Caron, Justin Thomas Blair, Somnath Kar, Volodymyr Yurchenko, Michael Andreas Winn, Renu Bala, Alberto Baldisseri, Andrea Ferrero, Amalia Pop, James Declan Mulligan, Guy Paic, Yury Sibiryak, Yury Ryabov, Ulrich Fuchs, Corrado Gargiulo, Antonio Ortiz Velasquez, Kunal Garg, Maximiliano Puccio, Raimond Snellings, Haidar Mas'Ud Alfanda, Lucrezia Camilla Migliorin, Seoyoung Noh, Roman Rogalev, Prottoy Das, Omar Vazquez Rueda, Barbara Ewa Erazmus, Rachid Guernane, Roy Crawford Lemmon, Imrich Szarka, Minjung Kim, Jun Takahashi, Nicole Bastid, Jinjin Pan, Yury Melikyan, Jana Bielcikova, Tomas Herman, Roberto Divia, Fabian Pliquett, Mikolaj Krzewicki, Raffaele Grosso, Michael Henry Oliver, Laurent Bernard Aphecetche, Herve Borel, Michael Jung, Miljenko Suljic, Beomkyu Kim, Andrea Dubla, Bruno Alessandro, Sudhir Raniwala, Tatiana Karavicheva, Denise Aparecida Moreira De Godoy, Nikolai Smirnov, Mario Rodriguez Cahuantzi, Sandro Christian Wenzel, Mauro Rogerio Cosentino, Sheetal Sharma, Sumit Basu, Nora De Marco, Fernando Torales Acosta, Yvonne Chiara Pachmayer, Alessandro Feliciello, Purba Bhattacharya, Yifei Zhang, Jeongsu Bok, Raphael Noel Tieulent, Dmitry Yurevich Peresunko, Ankhi Roy, Yue Shi Lai, Annalisa De Caro, Erin Frances Gauger, Vit Kucera, Premomoy Ghosh, Konstantin Mikhaylov, Jose Ruben Alfaro Molina, Robert Vertesi, Markus Ball, Bjarte Kileng, Chun-Lu Huang, Ionel Stan, Mohammed Hamid, Mohd Danish Azmi, Peter Malzacher, Sebastian Adam Bysiak, Latchezar Betev, Igor Morozov, Syaefudin Jaelani, Laura Fabbietti, J. W. Harris, Seyed Farid Taghavi, Jose Garabatos Cuadrado, Pietro Cortese, Rita Sadek, Andrei Riabov, Silvia Arcelli, Dariusz Czeslaw Miskowiec, Lucas Anne Vermunt, Bedangadas Mohanty, Junlee Kim, Taesoo Kim, Maya Hachiya Shimomura, Edith Zinhle Buthelezi, Livio Bianchi, Auro Prasad Mohanty, Markus Konrad Kohler, Przemyslaw Karczmarczyk, Suman Deb, Federico Antinori, Ejiro Naomi Umaka, Austin Robert Schmier, Alexey Bogdanov, Sergey Sadovskiy, Fabio Filippo Colamaria, Georgui Kornakov, Nataliya Topilskaya, Thorsten Sven Kollegger, Christopher Hills, Dushmanta Sahu, Domenico Colella, Dibakar Bauri, Annalisa Mastroserio, Debasish Das, R. J. Ehlers, Anisa Khatun, Iwona Anna Sputowska, Nur Hussain, Emma Gonzalez Hernandez, Alessandro Ferretti, Federico Cindolo, Meike Charlotte Danisch, Manuel Colocci, Kirill Lapidus, Ran Xu, Xiaozhi Bai, Haavard Helstrup, Gines Martinez-Garcia, Vladimir Samsonov, Grazia Luparello, Caitlin Beattie, Paraskevi Ganoti, Eleazar Cuautle Flores, Victor Gonzalez, Randhir Singh, Goran Simatovic, Giuseppe Simonetti, Petr Zavada, Christina Markert, Przemyslaw Stefan Rokita, Dhruv Utpalkumar Dixit, Oliver Thomas Jevons, Sizar Aziz, Giacinto de Cataldo, Anton Jusko, Ivan Kralik, Miroslav Pikna, Michael Karim Habib, Mario Sitta, Jan Musinsky, Neelima Agrawal, Corrado Cicalo, Zhi Yu, Alexei Khanzadeev, Takumi Osako, Ombretta Pinazza, Silvia Masciocchi, Cindy Mordasini, Ranbir Singh, Shaista Khan, Jinsook Kim, Romain Schotter, Paolo Camerini, Sergey Voloshin, Kamil Rafal Deja, Johannes Lehrbach, Ivan Ravasenga, Ya Zhu, Ralf Peter Averbeck, Katie Leanne Graham, Xinye Peng, Tim Sebastian Rogoschinski, Mattia Faggin, S. 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Di Bari, R. Haake, Anastasia Berdnikova, Saikat Biswas, Jacopo Pazzini, Nima Zardoshti, Sang Un Ahn, Artem Isakov, Fabio de Moraes Canedo, Sandeep Dudi, G. Bencedi, Piotr Jan Gasik, Vikas Singhal, Paolo Martinengo, Antonino Zichichi, Jorge Andres Lopez Lopez, Guillaume Taillepied, Stefano Trogolo, Francesco Noferini, Supriya Das, Sanjib Muhuri, Antonio Uras, Stefania Beole, Sudhir Pandurang Rode, Stefano Piano, Michael Rudolf Ciupek, Sourav Kundu, Dmitrii Nesterov, Peter Chochula, Tabea Maria Eder, Gergely Gabor Barnafoldi, Ketil Roeed, Evgeny Ryabinkin, Swati Saha, Hiroki Yokoyama, Marcelo Gameiro Munhoz, Werner Riegler, Rosario Nania, Se Yong Kim, Amelia Lindner, Marco Toppi, Adela Kravcakova, Subhasis Chattopadhyay, Meenakshi Sharma, Jeremy John Wilkinson, Preeti Dhankher, Jennifer Lynn Klay, Yury Pestov, Tariq Mahmoud, Sylvain Chapeland, Rishat Sultanov, Anjaly Sasikumar Menon, Orlando Villalobos Baillie, Jan Fiete Grosse-Oetringhaus, Victor Jose Gaston Feuillard, Andrea Alici, Maxime Guilbaud, Wan Chang, Patrick Simon Reichelt, Anthony Robert Timmins, Sergey Nazarenko, Valeria Muccifora, Partha Pratim Bhaduri, Adam Ryszard Kisiel, Felix Reidt, Christophe Pierre Suire, Gerardo Antonio Herrera Corral, Vasco Miguel Chibante Barroso, Luca Barioglio, Brigitte Cheynis, Hermann Franz Degenhardt, Ailec Bell Hechavarria, Raul Arteche Diaz, Guido Alexander Willems, Artur Furs, Martin Andreas Volkl, Vladislav Manko, Nachiketa Sarkar, Vladimir Kaplin, Martin Vala, Taejun Kim, Petra Loncar, Igor Altsybeev, Sergey Kiselev, Nicolas Schmidt, Davide Pagano, Vladimir Belyaev, Dmitry Blau, Pritam Chakraborty, Jiri Mares, Dmitry Finogeev, Valentina Zaccolo, Krzysztof Redlich, Taku Gunji, Yanchun Ding, Sergey Gorbunov, Yuko Sekiguchi, Sami Sakari Rasanen, Juan Manuel Mejia Camacho, Stefano Boi, Michal Broz, A. Matyja, Janusz Oleniacz, Rene Bellwied, Francesco Prino, Alexander Schmah, Boris Polishchuk, Natasha Sharma, Neelkamal Mallick, Alberto Rotondi, Vytautas Vislavicius, Hans Rudolf Schmidt, Andrey Kondratyev, Giacomo Volpe, C. Ceballos Sanchez, Rinaldo Rui, Yves Roland Schutz, Jesus Guillermo Contreras Nuno, Evgeny Karpechev, Tomasz Trzcinski, Guillermo Tejeda Munoz, Costin Grigoras, Marek Kowalski, Anselmo Margotti, Grigorii Feofilov, Dimitra Andreou, Austin Vincent Harton, David Karatovic, Saul Anibal Rodriguez Ramirez, Raghunath Sahoo, Andrea Rossi, Valerie Ramillien Barret, Silvia Pisano, Adrian Fereydon Nassirpour, Tinku Sarkar Sinha, Ivan Vorobyev, Martin U. Schmidt, Zuzana Moravcova, Sergey Evdokimov, Lukas Koska, Laura Helena Gonzalez Trueba, Salvatore De Pasquale, Teodor Siemiarczuk, Alexandre Shabetai, Jiyeon Kwon, Sanjay K. 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Klein, Oveis Sheibani, Alessandro Grelli, Rune Langøy, Roberta Arnaldi, Florian Jonas, Pascal Dupieux, Andrea Dainese, Sergey Fokin, Slavka Jadlovska, Naomi van der Kolk, Klaus Johannes Reygers, Paul Alois Buhler, Aydan Garibli, Teo Mrnjavac, Pragati Sahoo, Jihye Song, Dominik Voscek, Rafael Peretti Pezzi, Monika Joanna Jakubowska, Cristian Andrei, Josephina Rae Wright, Feng Fan, Jens Wiechula, Markus Keil, Venelin Anguelov, Eugen Mudnic, Raquel Estefania Quishpe Quishpe, Dukhishyam Mallick, Alessandra Fantoni, Angela Badala, Torsten Alt, Michael Lettrich, Christian Klein-Boesing, Zuzana Jakubcinova, Aude Marie Camille Glaenzer, Sonia Parmar, Leticia Cunqueiro Mendez, Domenico Elia, Mikhail Ippolitov, Livia Terlizzi, Sabyasachi Siddhanta, Alberto Collu, Hartmut Hillemanns, Xiaoming Zhang, Pranjal Sarma, Petra Riedler, Anatoly Tikhonov, Edgar Dominguez Rosas, Prottay Das, Tatsuya Chujo, Ilya Selyuzhenkov, K. Krizkova Gajdosova, Evgeny Kryshen, Carlos Duarte Galvan, Tulika Tripathy, Matthias Kleiner, Gilda Scioli, Benjamin Donigus, Siegfried Valentin Foertsch, Hugo Denis Antonio Pereira Da Costa, Giulio Usai, Mesut Arslandok, Alberto Masoni, Dirk Hutter, Marielle Chartier, Jamila Bashir Butt, Buddhadeb Bhattacharjee, Ernesto Lopez Torres, Boris Wagner, Anand Kumar Dubey, Muqing Jin, Jakub Kvapil, Arturo Fernandez Tellez, Sergio Vergara Limon, Sanchari Thakur, Paula Fernanda Toledo Matuoka, Laura Brittany Havener, Gergoe Hamar, Maria Vasileiou, Eun Joo Kim, Alexander Vinogradov, Nicola Zurlo, Fabio Catalano, Vladimir Kovalenko, Shiming Yang, Boris Rumyantsev, Luca Micheletti, Despina Hatzifotiadou, Jasper Elias Parkkila, Pradip Kumar Roy, Sudipan De, Shinichi Hayashi, Roberto Preghenella, Ahsan Mehmood Khan, Matteo Concas, Harald Appelshaeuser, Zebo Tang, Dieter Roehrich, Linda Vickovic, Nicolo Jacazio, Muhammad Umair Naru, Rihan Haque, Dagmar Adamová, Hira Ilyas, Xing Long Li, Jaime Norman, Franco Meddi, Dmitry Aleksandrov, Pavel Larionov, Alexander Kurepin, Franck Manso, Alexandra Neagu, Lukas Lautner, Sarita Sahoo, Giuseppe Mandaglio, Christian Claude Kuhn, Chinorat Kobdaj, Raphaelle Marie Bailhache, Elisa Meninno, Guillermo Mesa Perez, Shreyasi Acharya, Michal Sumbera, Joshua Leon Konig, Leo Clifford Greiner, Alla Maevskaya, Masanori Ogino, Arianna Grisel Torres Ramos, Alexey Kurepin, Sergey Nikolaev, Thomas Peitzmann, Oleksandr Kovalenko, Mirko Planinic, Adrian Florin Mechler, Marie Germain, Nicola Bianchi, Christoph Mayer, Jens Robert Luhder, Mustafa Anaam, Lee Stuart Barnby, Ermanno Vercellin, Ritsuya Hosokawa, Wadut Shaikh, Giuseppe Trombetta, Marian Krivda, Alice Elisabeth Ohlson, Johann Joachim Schambach, Ian Gardner Bearden, Daiki Sekihata, Filippo Baruffaldi, Richard Daniel Majka, Jungeol Kim, Constantinos Loizides, Pradip Kumar Sahu, Katharina Garner, Sergey Filchagin, Marco Bregant, Peter Martin Jacobs, Ravindra Singh, Sagarika Swain, Piero Giubilato, Jon Christopher Wikne, Hideki Hamagaki, Nikolay Zavyalov, Vladimir Zherebchevskii, Grzegorz Andrzej Wilk, Alessandro De Falco, Gioacchino Vino, Charles E. Hughes, Kirill Voloshin, Ramni Gupta, Oskari Antti Matti Saarimaki, Dong Jo Kim, Jan Honermann, Jan Anton Hasenbichler, Xavier Bernard Lopez, Jaroslav Bielcik, Ryan Patrick Hannigan, Matthias Richter, Ezra Douglas Lesser, Alexander Vodopyanov, Peter Glassel, Francesca Bellini, Elena Rogochaya, Alexandr Tumkin, Silvia Delsanto, Enrico Fragiacomo, Predrag Buncic, Irais Bautista Guzman, Laszlo Boldizsar, Naghmeh Mohammadi, David Dobrigkeit Chinellato, Luisa Bergmann, Geun Hee Hong, Lukas Nellen, David Olle Rickard Silvermyr, Dmitry Mal Kevich, Paola Gianotti, James Philip Iddon, Alexey Kuryakin, Hannah Bossi, Dmitry Serebryakov, Nikola Poljak, Torsten Dahms, Peter Kalinak, Andry Malala Rakotozafindrabe, Marianna Mazzilli, Vladimir Ivanov, Vito Manzari, Ante Bilandzic, Jacobb Lee Martinez, Tuva Ora Herenui Richert, Arvind Khuntia, Viktor Riabov, Thomas Janson, Siyu Tang, Debojit Sarkar, Adriana Telesca, Patrick John Steffanic, Vivek Singh, Ji-Young Kim, Joakim Nystrand, Peter Christiansen, Anton Andronic, Lawrence Pinsky, Matthew Daniel Buckland, Seongjoo Lee, Martin Kroesen, Thomas Michael Cormier, Lokesh Kumar, Oliver Matonoha, Gustavo Conesa Balbastre, Benedikt Volkel, Heidi Maria Rytkonen, Mikhail Malaev, Sushanta Tripathy, Michal Meres, Tiziano Virgili, Markus Fasel, Ionut Cristian Arsene, Bernhard Franz Ketzer, Mihaela Gabriela Besoiu, Xiaomei Li, Cristina Terrevoli, Antonio Bianchi, Yaroslav Berdnikov, Mikhail Zhalov, Alwina Ruixin Liu, Florian Paul Andre Damas, Arturo Tauro, Alberica Toia, Soyeon Cho, A. Alkin, Magnus Mager, Hua Pei, Pietro Antonioli, Luisa Cifarelli, Andreas Morsch, Qiye Shou, Antonio Trifiro, Y. Yamaguchi, Shingo Sakai, Martin Poghosyan, Barbara Jacak, Alexander Philipp Kalweit, Miguel Ignacio Arratia Munoz, Uliana Dmitrieva, Francesco Mazzaschi, Christophe Furget, Jean Willy Andre Cleymans, Volker Lindenstruth, Francesca Soramel, Barbara Antonina Trzeciak, Alberto Caliva, Henrique Jose Correia Zanoli, Dezso Varga, Alex Henri Jean Chauvin, D. De Gruttola, Mihai Petrovici, Ara Grigoryan, Pooja Pareek, Bernd Stefan Windelband, Varlen Grabski, Bong-Hwi Lim, Lukas Tropp, Cynthia Marie Hadjidakis, Horst Sebastian Scheid, Natalia Kondratyeva, Mateusz Andrzej Ploskon, Filippo Costa, Suharyo Sumowidagdo, Marian Ivanov, Vladimir Nikulin, Boris Hippolyte, Javier Ernesto Castillo Castellanos, Alexander Kluge, Jian Liu, Sebastien Perrin, Zubayer Ahammed, Giacomo Vito Margagliotti, Dimitar Lubomirov Mihaylov, Johan Alme, Luciano Ramello, Daicui Zhou, Ester Anna Rita Casula, Bushra Ali, Sarah Julie Porteboeuf, Maria Barlou, Pascal Raisig, Negin Alizadehvandchali, Sibaliso Mhlanga, Qasim Waheed Malik, Alexandru Bercuci, Hyeonjoong Kim, Joonil Lee, Thomas Humanic, Uzma Tabassam, Mike Henry Petrus Sas, Simone Ragoni, Sven Gotovac, Zabulon Vilakazi, Roman Lavicka, Arturo Alejandro Menchaca-Rocha, Marek Bombara, Ernst Hellbar, Andreas Michael Mathis, Vladimir Vechernin, Yasir Ali, Jon-Are Saetre, Eugenio Nappi, Kristjan Herlache Gulbrandsen, Johannes Peter Wessels, Ali Zaman, Giulia Clai, Marco Marquard, Lorenzo de Cilladi, Takuya Kumaoka, Aurora Diozcora Vargas Trevino, Lennart van Doremalen, Mohammad Asif Bhat, Gennady Zinovjev, Sadhana Dash, Pengyao Cui, Nicole Alice Martin, Chiara Zampolli, Sara Vallero, Marko Jercic, Andrey Kazantsev, Inayat Rasool Bhat, Sumit Kumar Saha, Jan de Cuveland, Sonali Padhan, Massimo Masera, Maksim Melnik Storetvedt, Mario Fusco Girard, Shakeel Ahmad, Mohamad Tarhini, Cristiane Jahnke, Alice Mulliri, Biswarup Paul, Corey James Myers, Catalin-Lucian Ristea, Alessandra Maria Mazzoni, Ruben Shahoyan, Yu-Gang Ma, Janka Vrlakova, Karel Safarik, Arseniy Shabanov, Stephan Alexander Konigstorfer, Jurgen Schukraft, Vitaly Loginov, Victor Trubnikov, Vikash Sumberia, Jesus Ricardo Alvarado Garcia, Marco van Leeuwen, Yongwook Baek, Lidia Maria Gorlich, Kenneth Francis Read, Zaida Conesa del Valle, Stefania Bufalino, Julien Faivre, Song Zhang, Podist Kurashvili, Pietro Fecchio, Panagiotis Christakoglou, Jonghan Park, Samsul Islam, Olja Dordic, Hanna Paulina Zbroszczyk, Toru Sugitate, Anjali Sharma, Chiara Oppedisano, Junjie Zhu, and Filip Erhardt
- Subjects
Physics ,Particle physics ,Large Hadron Collider ,Meson ,010308 nuclear & particles physics ,Nuclear Theory ,High Energy Physics::Phenomenology ,Hadron ,General Physics and Astronomy ,01 natural sciences ,Hadronization ,Baryon ,0103 physical sciences ,Transverse momentum ,High Energy Physics::Experiment ,Nuclear Experiment ,010306 general physics - Abstract
The prompt production of the charm baryon Λ c + and the Λ c + / D 0 production ratios were measured at midrapidity with the ALICE detector in p p and p -Pb collisions at s NN = 5.02 TeV . These new measurements show a clear decrease of the Λ c + / D 0 ratio with increasing transverse momentum ( p T ) in both collision systems in the range 2 p T 12 GeV / c , exhibiting similarities with the light-flavor baryon-to-meson ratios p / π and Λ / K S 0 . At low p T , predictions that include additional color-reconnection mechanisms beyond the leading-color approximation, assume the existence of additional higher-mass charm-baryon states, or include hadronization via coalescence can describe the data, while predictions driven by charm-quark fragmentation processes measured in e + e - and e - p collisions significantly underestimate the data. The results presented in this Letter provide significant evidence that the established assumption of universality (colliding-system independence) of parton-to-hadron fragmentation is not sufficient to describe charm-baryon production in hadronic collisions at LHC energies.
- Published
- 2021