Measurement of the production cross section of prompt Ξ0c baryons at midrapidity in pp collisions at √s = 5.02 TeV

作     者：Acharya, S. Adamová, D. Adler, A. Adolfsson, J. Rinella, G. Aglieri Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Akbar, Z. Akindinov, A. Al-Turany, M. Albuquerque, D.S.D. Aleksandrov, D. Alessandro, B. Alfanda, H.M. Molina, R. Alfaro Ali, B. Ali, Y. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alt, T. Altenkamper, L. Altsybeev, I. Anaam, M.N. Andrei, C. Andreou, D. Andronic, A. Anguelov, V. Antičić, T. Antinori, F. Antonioli, P. Anuj, C. Apadula, N. Aphecetche, L. Appelshäuser, H. Arcelli, S. Arnaldi, R. Arratia, M. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, R. Aziz, S. Azmi, M.D. Badalà, A. Baek, Y.W. Bai, X. Bailhache, R. Bala, R. Balbino, A. Baldisseri, A. Ball, M. Banerjee, D. Barbera, R. Barioglio, L. Barlou, M. Barnaföldi, G.G. Barnby, L.S. Barret, V. Bartels, C. Barth, K. Bartsch, E. Baruffaldi, F. Bastid, N. Basu, S. Batigne, G. Batyunya, B. Bauri, D. Alba, J.L. Bazo Bearden, I.G. Beattie, C. Belikov, I. Hechavarria, A.D.C. Bell Bellini, F. Bellwied, R. Belokurova, S. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berdnikova, A. Berenyi, D. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhat, I.R. Bhat, M.A. Bhattacharjee, B. Bhattacharya, P. Bianchi, A. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Bilandzic, A. Biro, G. Biswas, S. Blair, J.T. Blau, D. Blidaru, M.B. Blume, C. Boca, G. Bock, F. Bogdanov, A. Boi, S. Bok, J. Boldizsár, L. Bolozdynya, A. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Borissov, A. Bossi, H. Botta, E. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buckland, M.D. Budnikov, D. Buesching, H. Bufalino, S. Bugnon, O. Buhler, P. Buncic, P. Buthelezi, Z. Butt, J.B. Bysiak, S.A. Caffarri, D. Caliva, A. Villar, E. Calvo Camacho, J.M.M. Camacho, R.S. Camerini, P. Canedo, F.D.M. Capon, A.A. Carnesecchi, F. Caron, R. Castellanos, J. Castillo Casula, E.A.R. Catalano, F. Sanchez, C. Ceballos Chakraborty, P. 

作者机构：Foundation Yerevan Armenia AGH University of Science and Technology Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine  Kolkata India Budker Institute for Nuclear Physics Novosibirsk Russia California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China  Havana Cuba  Mexico City Mexico Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Chungbuk National University Cheongju Korea Republic of Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia COMSATS University Islamabad Islamabad Pakistan Creighton University OmahaNE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of California BerkeleyCA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica Università La Sapienza Sezione INFN Dipartimento di Fisica dell’Università’La Sapienza’ and Sezione INFN Rome Italy Dipartimento di Fisica dell’Università Sezione INFN Cagliari Italy Dipartimento di Fisica dell’Università Sezione INFN Trieste Italy Dipartimento di Fisica dell’Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN Padova Italy Dipartimento di Fisica e Nucleare e Teorica Università di Pavia and Sezione INFN Pavia Italy Dipartimento di Fisica E.R. Caianiello dell’Università Gruppo Collegato INFN Salerno Italy Dipartimento DISAT del Politecnico Sezione INFN Turin Italy Dipartimento di Scienze e Innovazione Tecnologica Università del Piemonte Orientale INFN Sezionedi Torino Alessandria Italy Dipartimento di Scienze MIFT Università di Messina Messina Italy Dipartimento Interateneo di Fisica M. Merlin Sezione INFN Bari Italy  Geneva Switzerland Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture University of Split Split Croatia Faculty of Engineering and Science Western Norway University of Applied Sciences Bergen Norway Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague Prague Czech Republic Faculty of Science P.J. Šafárik University Košice Slovakia Frankfurt Institute for Advanced Studies Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany Fudan University Shanghai China Gangneung-Wonju National University Gangneung Korea Republic of Gauhati University Department of Physics Guwahati India Helmholtz-Institut für Strahlen- und Kernphysik Rheinische Friedrich-Wilhelms-Universität Bonn Bonn Germany  Helsinki Finland High Energy Physics Group Universidad Autónoma de Puebla Puebla Mexico Hiroshima University Hiroshima Japan  Worms Germany Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania  Mumbai India Indian Institute of Technology Indore Indore India Indonesian Institute of Sciences Jakarta Indonesia INFN Laboratori Nazionali di Frascati Frascati Italy INFN Sezione di Bari Bari Italy INFN Sezione di Bologna Bologna Italy INFN Sezione di Cagliari Cagliari Italy INFN Sezione di Catania Catania Italy INFN Sezione di Padova Padova Italy INFN Sezione di Roma Rome Italy INFN Sezione di Torino Turin Italy INFN Sezione di Trieste Trieste Italy Inha University Incheon Korea Republic of  Utrecht University/Nikhef Utrecht Netherlands Institute for Nuclear Research Academy of Sciences Moscow Russia Institute of Experimental Physics Slovak Academy of Sciences Košice Slovakia Institute of Physics Homi Bhabha National Institute Bhubaneswar India Institute of Physics of the Czech Academy of Sciences Prague Czech Republic  Bucharest Romania Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México Mexico City Mexico  Porto Alegre Brazil Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico iThemba LABS National Research Foundation Somerset West South Africa Jeonbuk National University Jeonju Korea Republic of Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Frankfurt Germany  Dubna Russia Korea Institute of Science and Technology Information Daejeon Korea Republic of KTO Karatay University Konya Turkey Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Orsay France 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2021年

核心收录：

主　　题：Hadrons 

摘      要：The transverse momentum (pT) differential cross section of the charm-strange baryon Ξ0c is measured at midrapidity (|y| +Ξ−νe in pp collisions at √s = 5.02 TeV with the ALICE detector at the LHC. The ratio of the pT-differential Ξ0c-baryon and D0-meson production cross sections is also reported. The measurements are compared with simulations with different tunes of the PYTHIA 8 event generator, with predictions from a statistical hadronisation model (SHM) with a largely augmented set of charm-baryon states beyond the current lists of the Particle Data Group, and with models including hadronisation via quark coalescence. The pT-integrated cross section of prompt Ξ0c-baryon production at midrapidity is also reported, which is used to calculate the baryon-to-meson ratio Ξ0c/D0 = 0.20 ±0.04 (stat.)−0.07+0.08 (syst.). These results provide an additional indication of a modification of the charm fragmentation from e+e− and e−p collisions to pp collisions. © 2021, CC BY.