First measurement of Ξc0 production in pp collisions at √s=7 TeV

K. Gulbrandsen,Taku Gunji,Animesh Gupta,Rr Gupta, Ismael Guzmán,Rudiger Haake,C. Hadjidakis,Hideki Hamagaki,Gergoe Hamar,J. C. Hamon,M. R. Haque,J. W. Harris,A. Harton,H. Hassan,D. Hatzifotiadou,S. Hayashi,S. T. Heckel,Ernst Hellbär,Haavard Helstrup, A. Herghelegiu,E. G. Hernandez,G. Herrera Corral,F. Herrmann, Bernd A. Hess,Kristin Fanebust Hetland,Hartmut Hillemanns,Christopher Hills,Boris Hippolyte,B. Hohlweger,D. Horak,S. Hornung, Ryoji Hosokawa, Plamen Hristov,C. Hughes,Thomas Humanic, Nawab Hussain,T. Hussain,D. Hutter,D. S. Hwang,James Philip Iddon,Radiy Ilkaev,M. Inaba,Mikhail Ippolitov,M. S. Islam,M. Ivanov,V. Ivanov,V. Izucheev,Barbara Jacak,Nicolò Jacazio,Peter Martin Jacobs,M. B. Jadhav,Slavka Jadlovska,Ján Jadlovský,S. Jaelani,Cosima Jahnke,M. J. Jakubowska,Malgorzata Anna Janik,P.H.S.Y. Jayarathna,Chitrasen Jena,M. Jercic,R. T. Jimenez Bustamante,Peter Graham Jones,Anton Jusko,Peter Kalinak,Alexander Kalweit,Ju Hwan Kang,V. Kaplin, Sukhendu Kar,A. Karasu Uysal,Oleg Karavichev, T. Karavicheva, L. Karayan,Przemyslaw Karczmarczyk,Evgeny Karpechev,Udo Kebschull,Ralf Keidel, D. L. D. Keijdener,Markus Keil,B. Ketzer,Zhanna Khabanova,P. Khan,S. A. Khan,S. A. Khan,Alexei Khanzadeev,Yuri Kharlov,Anisa Khatun,Arvind Khuntia,M. M. Kielbowicz,Bjarte Kileng,B. Kim, Danielle Kim, Danielle Kim,H. Kim, Junlee Kim,Junlee Kim,M. Kim,Shinhong Kim,T. Kim,S. Kirsch,Ivan Kisel,Sergey Kiselev,Adam Kisiel,Gábor Kiss,J. L. Klay,C. Klein, Jonas Klein,Christian Klein-boesing,Sebastian Klewin,A. Kluge,M. L. Knichel,A. G. Knospe,Chinorat Kobdaj,Monika Kofarago, M. K. Köhler,Thorsten Kollegger,V. Kondratiev,Nadezhda Kondratyeva, E. A. Kondratyuk,Artem Konevskikh,Maxim Konyushikhin,Michal Kopcik,Mandeep Kour,C. Kouzinopoulos,Oleksandr Kovalenko,V. Kovalenko, Michał Kowalski,G. Koyithatta Meethaleveedu,I. Králik,Adela Kravcakova,Lukas Kreis,Marian Krivda,Filip Krizek,Evgeny Kryshen,M. Krzewicki,A. M. Kubera, Václav Kučera, Charlotte Kuhn,Paulus Gerardus Kuijer, A. Kumar,Jayant Kumar,L. Kumar, S. Kumar,S. Kundu,P. Kurashvili, A. B. Kurepin,A. B. Kurepin,Alexey Kuryakin,Svetlana Kushpil, M. J. Kweon,Y. Kwon,S. L. La Pointe,Paola La Rocca,C. Lagana Fernandes,Y. S. Lai,Igor Lakomov,Rune Langoy,Kirill Lapidus,C. E. Pérez Lara,A. Lardeux, Ana Paula Lattuca,Elisa Laudi,Roman Lávička,Ramona Lea,L. Leardini,S. C. Lee,Fatiha Lehas,S. Lehner,Johannes Lehrbach,R. C. Lemmon,Emilia Leogrande,I. León Monzón, P'eter L'evai, Xian-ming Li, Xian-ming Li,J. Lien,Roman Lietava, Bronson Lim,Svein Lindal,Volker Lindenstruth, Scott Charles Lindsay,C. Lippmann,Michael Annan Lisa,V. Litichevskyi,A. Liu,William Llope,D. F. Lodato,P. I. Loenne, Vadim Loginov,Constantin Loizides,Petra Lončar, Xavier López,Ernesto Lopez Torres,A. Lowe,P. Luettig,Jens Robert Luhder,Marcello Lunardon,Grazia Luparello,M. Lupi,Tyler Harrison Lutz,A. Maevskaya,M. Mager,S. M. Mahmood,A. Maire,R. D. Majka,Mikhail Malaev,Lyudmila Malinina,Dmitry Mal'kevich,Peter Malzacher,Alexander Mamonov, Vanessa Manko,Franck Manso,Vito Manzari,Y. Mao,M. Marchisone,J. Mareš,G. V. Margagliotti,Anselmo Margotti,Jacopo Margutti, A. Romero Marín,Christina Markert,Marco Marquard,Nicole Alice Martin,Paolo Martinengo, José Luis Aguilar Martínez,M. I. Martínez,G. Martínez García,Miguel Martinez Pedreira,Silvia Masciocchi,Massimo Masera, Andrea Masoni, Laurent Massacrier,E. Masson,Annalisa Mastroserio,A. M. Mathis,Paula Fernanda Toledo Matuoka,A. Matyja,C. Mayer,J. Mazer,M. Mazzilli,M. A. Mazzoni,F. Meddi,Yuri Melikyan,Arturo Alejandro Menchaca-rocha,Elisa Meninno,Jorge M. Perez,Michal Meres, Sithembinkosi Mhlanga,Yasuo Miake,M. M. Mieskolainen,D. L. Mihaylov,Konstantin Mikhaylov,Andre Mischke,Aditya Nath Mishra, Dawid Miśkowiec,J. Mitra,C. M. Mitu, Najmieh Mohammadi,Auro Prasad Mohanty,B. Mohanty,M. Mohisin Khan,Esther Montes, Dam De Godoy,Luis Alberto Perez Moreno,Sandra Moretto,Astrid Morreale,A. Morsch,Valeria Muccifora,Eugen Mudnic,D. Muehlheim,S. Muhuri, Jeffrey Mulligan,M. G. Munhoz,K. Münning,R. H. Munzer,Hikari Murakami,S. Murray, L. Musa,Jan Mušinský,C. J. Myers,Julian Myrcha,D. Nag, Bandita Naik,R. Nair, Biplob Kumar Nandi,R. Nania,E. Nappi,A. Narayan, M. Umair Naru,Hugo Natal da Luz,Christine Nattrass,Sebastian Rosado Navarro, K. Nayak,R. Nayak,T. K. Nayak,Sergey Nazarenko, Renato Oliveira,Lukas Nellen,S. V. Nesbo,Gvozden Neskovic,Fabian Ng,Maria Nicassio,M. Niculescu, Jennifer L. Niedziela, Birgitte Nielsen,S. Nikolaev, S. Nikulin,V. Nikulin,Akihide Nobuhiro,Francesco Noferini,P. Nomokonov,Gerardus Nooren,Juan Carlos Cabanillas Noris,Jaime Norman,A. Nyanin,Joakim Nystrand,H. Oeschler, Hee Oh,A. Ohlson,László Oláh,Janusz Oleniacz,Antonio Carlos Oliveira da Silva,Michael Henry Oliver,J. Onderwaater,Chiara Oppedisano, Reijo Orava,M. Oravec,Antonio Ortiz Velasquez,A. Oskarsson, Jakub Otwinowski,Ken Oyama,Y. Pachmayer,Vojtech Pacik,Davide Pagano,Guy Paíc,Prabhakar Palni, Jinsong Pan,Ashutosh Kumar Pandey

semanticscholar（2018）

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摘要

Article history: Received 15 December 2017 Received in revised form 5 March 2018 Accepted 21 March 2018 Available online 27 March 2018 Editor: L. Rolandi The production of the charm-strange baryon c is measured for the first time at the LHC via its semileptonic decay into e+ −νe in pp collisions at √ s = 7 TeV with the ALICE detector. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 1 < pT < 8 GeV/c at mid-rapidity, |y| < 0.5. The transverse momentum dependence of the c baryon production relative to the D0 meson production is compared to predictions of event generators with various tunes of the hadronisation mechanism, which are found to underestimate the measured crosssection ratio. © 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.

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