Measurement of Antiproton Production in p−He Collisions at √sNN=110 GeV
Roel Aaij,C. Abellán Beteta,Bernardo Adeva,Marco Adinolfi,C. A. Aidala,Ziad Ajaltouni,Simon Akar,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A. Alfonso Albero, G. Alkhazov,P. Alvarez Cartelle, A. A. Alves,Sandra Amato, S. Amerio,Yasmine Amhis,Liupan An,Lucio Anderlini,Guido Andreassi, M. Andreotti, J. E. Andrews,Robert Appleby, F. Archilli, Philippe d'Argent,J. Arnau Romeu, A. Artamonov,Marina Artuso, Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,John Back,Simon Baker,Vladislav Balagura,Wander Baldini,Alexander Baranov,Roger Barlow,Sergey Barsuk,William Barter,Fedor Baryshnikov,Varvara Batozskaya,Baasansuren Batsukh,Vincenzo Battista, A. Bay, J. Beddow,F. Bedeschi,Ignacio Bediaga,Andrew Beiter, L. J. Bel,Samuel Belin,Nikita Beliy,Violaine Bellee, N. Belloli, K. Belous,Ivan Belyaev, E. Ben-Haim, G. Bencivenni,S. Benson,Sarah Beranek,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Emilie Bertholet,Alessandro Bertolin,Christopher Betancourt,Federico Betti, M. O. Bettler,M. van Beuzekom,Ia. Bezshyiko,Srishti Bhasin,Jihyun Bhom,Simone Bifani, P. Billoir, A. Birnkraut,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,F. Blanc,S. Blusk,Dana Bobulska,V. Bocci,O. Boente Garcia, T. Boettcher,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato, F. Bossu, M. Boubdir,T. J. V. Bowcock, C. Bozzi,Svende Braun, M. Brodski,Jolanta Brodzicka,A. Brossa Gonzalo,Davide Brundu, E. Buchanan, Annarita Buonaura,Christopher Burr,Albert Bursche, J. Buytaert,Wiktor Byczynski,S. Cadeddu,Huacheng Cai,R. Calabrese, Ryan Calladine,Marta Calvi,M. Calvo Gomez,Alessandro Camboni, P. Campana,D. H. Campora Perez,Lorenzo Capriotti, A. Carbone,Giovanni Carboni,Roberta Cardinale, Alessandro Cardini,Paolo Carniti,Laurence Carson,K. Carvalho Akiba,Gianluigi Casse, L. Cassina,Marco Cattaneo, G. Cavallero, R. Cenci,David Chamont,Matthew George Chapman,Matthew Charles,Ph. Charpentier,Georgios Chatzikonstantinidis, M. Chefdeville, V. Chekalina,C. Chen, S. J. Chen,S.-G. Chitic,Veronika Chobanova,Marcin Chrzaszcz,Alexsei Chubykin,Paolo Ciambrone,X. Cid Vidal,Gregory Ciezarek, P. E. L. Clarke,Marco Clemencic,Harry Cliff,Joel Closier,Victor Coco,J. A. B. Coelho,Julien Cogan, E. Cogneras, L. Cojocariu, P. Collins,Tommaso Colombo, A. Comerma-Montells,Andrea Contu, George Coombs,S. Coquereau,Gloria Corti, M. Corvo,C. M. Costa Sobral, B. Couturier, G. A. Cowan,D. C. Craik, A. Crocombe,M. Cruz Torres,Robert Currie,Carmelo D'Ambrosio,F. Da Cunha Marinho,C. L. Da Silva,E. Dall’Occo,J. Dalseno,Anna Danilina,A. Davis,O. De Aguiar Francisco,K. De Bruyn,S. De Capua,M. De Cian,J. M. De Miranda,L. De Paula,M. De Serio,P. De Simone,Cameron Thomas Dean, D. Decamp,L. Del Buono, Blaise Delaney,H.-P. Dembinski,M. Demmer, Adam Dendek,Denis Derkach,Olivier Deschamps, Fabrice Desse,Francesco Dettori,Biplab Dey,A. Di Canto,P. Di Nezza,Sergey Didenko,Hans Dijkstra,Francesca Dordei, M. Dorigo,A. Dosil Suárez, Lauren Douglas,Anatoliy Dovbnya,Karlis Dreimanis,L. Dufour,Giulio Dujany, P. Durante,John Matthew Durham,Deepanwita Dutta, R. Dzhelyadin,Michal Dziewiecki,Agnieszka Dziurda,A. Dzyuba,Sajan Easo,Ulrik Egede,Victor Egorychev,Semen Eidelman,Stephan Eisenhardt, U. Eitschberger, Robert Ekelhof,Lars Eklund, S. Ely,Alexandru Ene,Stephan Escher, S. Esen,Timothy Evans,Antonio Falabella, N. Farley, S. Farry,Davide Fazzini,Luca Federici,P. Fernandez Declara,A. Fernandez Prieto,Fabio Ferrari,L. Ferreira Lopes,F. Ferreira Rodrigues, M. Ferro-Luzzi,S. Filippov, R. A. Fini,Massimiliano Fiorini,Miroslaw Firlej,Conor Fitzpatrick,Tomasz Fiutowski,François Fleuret,Marianna Fontana,Flavio Fontanelli,Roger Forty,V. Franco Lima,Markus Frank,Christoph Frei, J. L. Fu,Wolfgang Funk, C. Färber,M. Féo Pereira Rivello Carvalho, Emmy Gabriel,A. Gallas Torreira,Domenico Galli,S. Gallorini,S. Gambetta,Yuyue Gan, M. Gandelman,Paolo Gandini,Yang Gao,L. M. Garcia Martin,B. Garcia Plana,J. García Pardiñas,J. Garra Tico,Lluis Garrido,D. Gascon, C. Gaspar, L. Gavardi, G. Gazzoni, D. Gerick, E. Gersabeck,Marco Gersabeck,Timothy Gershon, Dawid Gerstel,Ph. Ghez, S. Gianì,Valerie Gibson, O. G. Girard, L. Giubega,Konstantin Gizdov,Vladimir Gligorov,Dmitry Golubkov,Andrey Golutvin, A. Gomes, I. V. Gorelov,Claudio Gotti,E. Govorkova,Jascha Peter Grabowski,R. Graciani Diaz,L. A. Granado Cardoso,E. Grauges,E. Graverini,Giacomo Graziani,Alexandru Grecu, Roman Greim, P. Griffith, L. Grillo,Lukas Gruber,B. R. Gruberg Cazon,Oliver Grünberg,Chenxi Gu,Evgeny Gushchin,Yu. Guz,Thierry Gys, C. Göbel,Thomas Hadavizadeh, C. Hadjivasiliou,Guido Haefeli,Christophe Haen, S. C. Haines, B. Hamilton, X. Han,Thomas Henry Hancock,Stephanie Hansmann-Menzemer,Neville Harnew, S. T. Harnew,Thomas Harrison,Christoph Hasse,Mark Hatch, J. He,Malte Hecker,Kevin Heinicke, A. Heister,Karol Hennessy, L. Henry,E. van Herwijnen, M. Heß, A. Hicheur,R. Hidalgo Charman, D. Hill,Martha Hilton, Plamen Hristov Hopchev,Wenhua Hu, W. Huang,Z. C. Huard,Wouter Hulsbergen, T. Humair,Mikhail Hushchyn,David Hutchcroft, D. Hynds, Philipp Ibis,Marek Idzik,Philip Ilten,Kuzma Ivshin,Richard Jacobsson, J. Jalocha,Eddy Jans,A. Jawahery,Feng Jiang,Malcolm John,Daniel Johnson,Christopher Jones, C. Joram,Beat Jost, N. Jurik,Sergii Kandybei, Matthias Karacson, James Mwangi Kariuki,S. Karodia,Nikita Kazeev,M. Kecke,Floris Keizer, M. H. Kelsey,M. Kenzie,Tjeerd Ketel, E. Khairullin, B. Khanji, C. Khurewathanakul,K. E. Kim,T. Kirn, S. Klaver, K. Klimaszewski,Tatsiana Klimkovich,Serhii Koliiev, M. Kolpin,Renata Kopecna,Patrick Koppenburg,Igor Kostiuk,Sofia Kotriakhova, M. Kozeiha,Leonid Kravchuk, M. Kreps,Felix Johannes Kress,Pavel Krokovny,Wojciech Krupa, W. Krzemien,W. Kucewicz,Marcin Kucharczyk, V. Kudryavtsev,A. K. Kuonen, Tengiz Kvaratskheliya,Daniel Lacarrere,George Lafferty, A. Lai,Davide Lancierini,Gaia Lanfranchi,Christoph Langenbruch,Thomas Latham,Cristina Lazzeroni,R. Le Gac,Alexander Leflat, Jacques Lefrançois,R. Lefèvre,Florian Lemaitre,Olivier Leroy,T. Lesiak, B. Leverington, P. R. Li,Teng Li,Zhuoming Li,Xixin Liang,T. Likhomanenko, R. Lindner, F. Lionetto,Vitalii Lisovskyi,Xia-Ji Liu, D. Loh,Angelo Loi, I. Longstaff,Jose Lopes,George Holger Lovell,Chiara Lucarelli, D. Lucchesi,M. Lucio Martinez, A. Lupato,Eleonora Luppi,O. Lupton,Alberto Lusiani,Xiao-Rui Lyu,Frederic Machefert,Florin Maciuc,Vladimir Macko, Patrick Mackowiak, Samuel Maddrell-Mander,Oleg Maev, K. Maguire, Dmitrii Maisuzenko,Maciej Witold Majewski,Sneha Malde,Bartosz Malecki, A. Malinin,Timofei Maltsev, G. Manca,Giampiero Mancinelli,Daniele Marangotto,J. Maratas,J. F. Marchand, U. Marconi,S. Mariani,C. Marin Benito,Matthieu Marinangeli, P. Marino, J. Marks,Phillip John Marshall, G. Martellotti,Morgan Martin,M. Martinelli,D. Martinez Santos,F. Martinez Vidal, A. Massafferri, Marcel Materok, R. Matev, A. Mathad, Z. Mathe, C. Matteuzzi, A. Mauri,Emilie Maurice, B. Maurin,Alexander Mazurov, M. McCann, A. McNab, R. McNulty,James Vincent Mead, Brian Meadows,Cedric Meaux, F. Meier, Nis Meinert, D. Melnychuk,Marcel Merk,Andrea Merli, E. Michielin, D. A. Milanes, Edward James Millard, M.-N. Minard, Luca Minzoni,D. S. Mitzel, Andrea Mogini,J. Molina Rodriguez,Titus Mombächer,Igancio Alberto Monroy,S. Monteil,Mauro Morandin,Gianfranco Morello, M. J. Morello,Olga Morgunova,Jakub Moron, A. B. Morris, R. Mountain,Franz Muheim,Mick Mulder,Colm Harold Murphy,Donal Murray, Antje Mödden,Dominik Müller, J. Müller, K. Müller,Vanessa Müller,Paras Naik,Tatsuya Nakada,R. Nandakumar, A. Nandi,Tara Nanut,Irina Nasteva,Matthew Needham,Nicola Neri, S. Neubert,Niko Neufeld, Max Neuner, Ryan Newcombe,T. D. Nguyen, C. Nguyen-Mau,Simon Nieswand, R. Niet,Nikolay Nikitin,Alla Nogay,Niklas Stefan Nolte,D. P. O’Hanlon,Agnieszka Oblakowska-Mucha,V. Obraztsov,Stephen Ogilvy, R. Oldeman,C. J. G. Onderwater, Anna Ossowska,J. M. Otalora Goicochea, P. Owen,A. Oyanguren, Preema Rennee Pais, Tommaso Pajero, A. Palano,Matteo Palutan,Gennady Panshin, Antonios Papanestis,M. Pappagallo, L. L. Pappalardo, W. Parker,C. Parkes,G. Passaleva, A. Pastore,Maulik R. Patel, C. Patrignani, A. Pearce,A. Pellegrino, G. Penso,M. Pepe Altarelli,S. Perazzini,Dmitrii Pereima,Pascal Perret, L. Pescatore,Konstantinos Petridis,Alessandro Petrolini,Alexey A. Petrov,Stefano Petrucci, M. Petruzzo, B. Pietrzyk,Guillaume Pietrzyk,Malgorzata Pikies, Martina Pili,Davide Pinci,Jacopo Pinzino,Flavio Pisani, A. Piucci,Vlad-Mihai Placinta, S. Playfer, Jonathan Plews,M. Plo Casasus, F. Polci,M. Poli Lener,Anton Poluektov,Natalia Polukhina, I. Polyakov,Erica Polycarpo, Gabriela Johanna Pomery,Sebastien Ponce, A. Popov,Dmitry Popov,Stanislav Poslavskii, C. Potterat, E. Price,Jessica Prisciandaro, C. Prouve, Valery Pugatch,A. Puig Navarro, Hannah Louise Pullen, G. Punzi, W. Qian,Jia-Jia Qin, R. Quagliani, Boris Quintana,Bartlomiej Rachwal,Jonas Rademacker,Matteo Rama,M. Ramos Pernas,Murilo Rangel,Fedor Ratnikov, G. Raven,M. Ravonel Salzgeber,Meril Reboud,F. Redi,S. Reichert,A. C. dos Reis,Florian Reiss,C. Remon Alepuz,Zan Ren, Victor Renaudin, S. Ricciardi, S. Richards,Kurt Rinnert,Patrick Robbe,Arnaud Robert, A. B. Rodrigues,Eduardo Rodrigues,J. A. Rodriguez Lopez, Markus Roehrken,Stefan Roiser,Alexandra Paige Rollings,Vladimir Romanovskiy,A. Romero Vidal,Marcello Rotondo,Matthew Scott Rudolph, T. Ruf,J. Ruiz Vidal,J. J. Saborido Silva,Naylya Sagidova,Biagio Saitta,V. Salustino Guimaraes, C. Sanchez Gras,C. Sanchez Mayordomo,B. Sanmartin Sedes, R. Santacesaria,C. Santamarina Rios, M. Santimaria,Emanuele Santovetti, Gediminas Sarpis,Alessio Sarti,C. Satriano,Alessia Satta, Miroslav Saur,Darya Savrina, S. Schael,Margarete Schellenberg,Manuel Schiller,H. Schindler,Michael Schmelling, T. Schmelzer, B. Schmidt,O. Schneider, A. Schopper, H. F. Schreiner,M. Schubiger,Marie Helene Schune,Rainer Schwemmer,Barbara Sciascia,Adalberto Sciubba,Alexander Semennikov, E. S. Sepulveda,Antonino Sergi,Nicola Serra, J. Serrano, L. Sestini, Alex Seuthe,Paul Seyfert, M. Shapkin, Yury Shcheglov,Tara Shears,Lev Shekhtman, V.G. Shevchenko,Evgenii Shmanin, B. G. Siddi,R. Silva Coutinho,L. Silva de Oliveira,Gabriele Simi,S. Simone, Igor Skiba, N. Skidmore, T. Skwarnicki,Mark Slater,John Gordon Smeaton,Eluned Smith,I. T. Smith,Mark Smith,Mara Senghi Soares,l. Soares Lavra, M. D. Sokoloff,F. J. P. Soler,B. Souza De Paula, B. Spaan,E. Spadaro Norella, P. Spradlin,Federico Stagni,M. Stahl,Stephen M. Stahl,Pavol Stefko,S. Stefkova, O. Steinkamp,Simon Stemmle, O. Stenyakin,Margarita Stepanova,Holger Stevens,Achille Stocchi,Sheldon Stone,Barbara Storaci, S. Stracka,Maria Elena Stramaglia,Mihai Straticiuc,U. Straumann,Sergey Strokov,Jiayin Sun, L. Sun,Krzysztof Swientek,Tomasz Szumlak, Maciej Pawel Szymanski,Stephane T'Jampens,Zhipeng Tang,Andrey Tayduganov, T. Tekampe, G. Tellarini,Frederic Teubert, E. G. Thomas,J. van Tilburg,Matthew James Tilley, V. Tisserand, M. Tobin, S. Tolk, L. Tomassetti, D. Tonelli,Da Yu Tou,R. Tourinho Jadallah Aoude, E. Tournefier, Murdo Traill,Minh Tâm Tran,A. Trisovic,Andrei Tsaregorodtsev,Giulia Tuci,Alison Tully,Niels Tuning,Artur Ukleja,Andrii Usachov,Andrey Ustyuzhanin,U. Uwer,Alexander Vagner,Vincenzo Vagnoni,Andrea Valassi,Sebastien Valat,Giovanni Valenti,R. Vazquez Gomez,P. Vazquez Regueiro,Stefania Vecchi,M. van Veghel,Jaap Velthuis, M. Veltri, G. Veneziano,Aravindhan Venkateswaran,T. A. Verlage,Maxime Vernet, Michele Veronesi, N. V. Veronika, M. Vesterinen,J. V. Viana Barbosa, D. Vieira,M. Vieites Diaz, Harald Viemann,Xavier Vilasis-Cardona,Arseniy Vitkovskiy, Marcela Vitti,V. Volkov, A. Vollhardt,D. Vom Bruch, Balazs Voneki,Alexey Vorobyev,V. Vorobyev,J. A. de Vries,C. Vázquez Sierra,Roland Waldi, J. J. Walsh,J. Wang,Moran Wang, Y. Wang,Zhenzi Wang,David Ward,Heather Mckenzie Wark,Nigel Watson,David Websdale, A. Weiden,Constantin Weisser,Mark Whitehead, Jean Wicht,Guy Wilkinson,M. Wilkinson,Ifan Williams,Mark Richard James Williams,Michael Williams, T. Williams,Fergus Wilson, J. Wimberley,M. Winn, Julian Wishahi, W. Wislicki,Mariusz Witek, G. Wormser, S. A. Wotton, Kenneth Wyllie,Dong Xiao,Yuehong Xie,Ao Xu, M. Xu, Qiang Xu,Zhihao Xu,Zhenwei Yang,Yuezhe Yao,Lauren Emma Yeomans,Hang Yin, J. M. Yu, X. Yuan, O. Yushchenko, Kristian Alexander Zarebski,Mikhail Zavertyaev, D. Zhang,Lei Zhang,Wen Chao Zhang,Yanxi Zhang,Alexey Zhelezov, Y. H. Zheng,Xiaofeng Zhu,Valery Zhukov,Jennifer Brigitta Zonneveld,S. Zucchelli
Physical Review（2018）
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摘要
The cross section for prompt antiproton production in collisions of protons with an energy of 6.5 TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of 0.5 nb^{-1}. The target is provided by injecting helium gas into the LHC beam line at the LHCb interaction point. The reported results, covering antiproton momenta between 12 and 110 GeV/c, represent the first direct determination of the antiproton production cross section in p-He collisions, and impact the interpretation of recent results on antiproton cosmic rays from space-borne experiments.
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