Prompt charm production in pp collisions at √s=7 TeV

Abstract

Charm production at the LHC in pp collisions at √s=7 TeV is studied with the LHCb detector. The decays D0→K−π+D0→K−π+, D+→K−π+π+D+→K−π+π+, D⁎+→D0(K−π+)π+D⁎+→D0(K−π+)π+, and their charge conjugates are analysed in a data set corresponding to an integrated luminosity of 15 nb−1. Differential cross-sections dσ/dpTdσ/dpT are measured for prompt production of the five charmed hadron species in bins of transverse momentum and rapidity in the region 0<pT<8 GeV/c0<pT<8 GeV/c and 2.0<y<4.52.0<y<4.5. Theoretical predictions are compared to the measured differential cross-sections. The integrated cross-sections of the charm hadrons are computed in the above pT-ypT-y range, and their ratios are reported. A combination of the five integrated cross-section measurements gives σ(cc¯)pT<8 GeV/c,2.0<y<4.5=1419±12(stat)±116(syst)±6 where the uncertainties are statistical, systematic, and due to the fragmentation functions.

Metadata

Authors/Creators:	Aaij, R Abellan Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves, AA Amato, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, RB Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M Aslanides, E Auriemma, G Bachmann, S Back, JJ Baesso, C Balagura, V Baldini, W Barlow, RJ Barschel, C Barsuk, S Barter, W Bauer, T Bay, A Beddow, J Bediaga, I Belogurov, S Belous, K Belyaev, I Ben-Haim, E Benayoun, M Bencivenni, G Benson, S Benton, J Berezhnoy, A Bernet, R Bettler, M-O van Beuzekom, M Bien, A Bifani, S Bird, T Bizzeti, A Bjørnstad, PM Blake, T Blanc, F Blanks, C Blouw, J Blusk, S Bobrov, A Bocci, V Bondar, A Bondar, N Bonivento, W Borghi, S Borgia, A Bowcock, TJV Bowen, E Bozzi, C Brambach, T van den Brand, J Bressieux, J Brett, D Britsch, M Britton, T Brook, NH Brown, H Burducea, I Bursche, A Buytaert, J Cadeddu, S Callot, O Calvi, M Calvo Gomez, M Camboni, A Campana, P Carbone, A Carboni, G Cardinale, R Cardini, A Carranza-Mejia, H Carson, L Carvalho Akiba, K Casse, G Cattaneo, M Cauet, C Charles, M Charpentier, P Chen, P Chiapolini, N Chrzaszcz, M Ciba, K Cid Vidal, X Ciezarek, G Clarke, PEL Clemencic, M Cliff, HV Closier, J Coca, C Coco, V Cogan, J Cogneras, E Collins, P Comerma-Montells, A Contu, A Cook, A Coombes, M Corti, G Couturier, B Cowan, GA Craik, D Cunliffe, S Currie, R DʼAmbrosio, C David, P David, PNY De Bonis, I De Bruyn, K De Capua, S De Cian, M De Miranda, JM De Paula, L De Silva, W De Simone, P Decamp, D Deckenhoff, M Degaudenzi, H Del Buono, L Deplano, C Derkach, D Deschamps, O Dettori, F Di Canto, A Dickens, J Dijkstra, H Diniz Batista, P Dogaru, M Domingo Bonal, F Donleavy, S Dordei, F Dosil Suárez, A Dossett, D Dovbnya, A Dupertuis, F Dzhelyadin, R Dziurda, A Dzyuba, A Easo, S Egede, U Egorychev, V Eidelman, S van Eijk, D Eisenhardt, S Eitschberger, U Ekelhof, R Eklund, L El Rifai, I Elsasser, C Elsby, D Falabella, A Färber, C Fardell, G Farinelli, C Farry, S Fave, V Ferguson, D Fernandez Albor, V Ferreira Rodrigues, F Ferro-Luzzi, M Filippov, S Fitzpatrick, C Fontana, M Fontanelli, F Forty, R Francisco, O Frank, M Frei, C Frosini, M Furcas, S Furfaro, E Gallas Torreira, A Galli, D Gandelman, M Gandini, P Gao, Y Garofoli, J Garosi, P Garra Tico, J Garrido, L Gaspar, C Gauld, R Gersabeck, E Gersabeck, M Gershon, T Ghez, P Gibson, V Gligorov, VV Göbel, C Golubkov, D Golutvin, A Gomes, A Gordon, H https://orcid.org/0000-0002-1822-3224 Grabalosa Gándara, M Graciani Diaz, R Granado Cardoso, LA Graugés, E Graziani, G Grecu, A Greening, E Gregson, S Grünberg, O Gui, B Gushchin, E Guz, Y Gys, T Hadjivasiliou, C Haefeli, G Haen, C Haines, SC Hall, S Hampson, T Hansmann-Menzemer, S Harnew, N Harnew, ST Harrison, J Harrison, PF Hartmann, T He, J Heijne, V Hennessy, K Henrard, P Hernando Morata, JA van Herwijnen, E Hicks, E Hill, D Hoballah, M Hombach, C Hopchev, P Hulsbergen, W Hunt, P Huse, T Hussain, N Hutchcroft, D Hynds, D Iakovenko, V Ilten, P Jacobsson, R Jaeger, A Jans, E Jansen, F Jaton, P Jing, F John, M Johnson, D Jones, CR Jost, B Kaballo, M Kandybei, S Karacson, M Karbach, TM Kenyon, IR Kerzel, U Ketel, T Keune, A Khanji, B Kochebina, O Komarov, I Koopman, RF Koppenburg, P Korolev, M Kozlinskiy, A Kravchuk, L Kreplin, K Kreps, M Krocker, G Krokovny, P Kruse, F Kucharczyk, M Kudryavtsev, V Kvaratskheliya, T La Thi, VN Lacarrere, D Lafferty, G Lai, A Lambert, D Lambert, RW Lanciotti, E Lanfranchi, G Langenbruch, C Latham, T Lazzeroni, C Le Gac, R van Leerdam, J Lees, J-P Lefèvre, R Leflat, A Lefrançois, J Leroy, O Li, Y Li Gioi, L Liles, M Lindner, R Linn, C Liu, B Liu, G von Loeben, J Lopes, JH Lopez Asamar, E Lopez-March, N Lu, H Luisier, J Luo, H Machefert, F Machikhiliyan, IV Maciuc, F Maev, O Malde, S Manca, G Mancinelli, G Mangiafave, N Marconi, U Märki, R Marks, J Martellotti, G Martens, A Martin, L Martín Sánchez, A Martinelli, M Martinez Santos, D Martins Tostes, D Massafferri, A Matev, R Mathe, Z Matteuzzi, C Matveev, M Maurice, E Mazurov, A McCarthy, J McNulty, R Meadows, B Meier, F Meissner, M Merk, M Milanes, DA Minard, M-N Molina Rodriguez, J Monteil, S Moran, D Morawski, P Mountain, R Mous, I Muheim, F Müller, K Muresan, R Muryn, B Muster, B Naik, P Nakada, T Nandakumar, R Nasteva, I Needham, M Neufeld, N Nguyen, AD Nguyen, TD Nguyen-Mau, C Nicol, M Niess, V Niet, R Nikitin, N Nikodem, T Nomerotski, A Novoselov, A Oblakowska-Mucha, A Obraztsov, V Oggero, S Ogilvy, S Okhrimenko, O Oldeman, R Orlandea, M Otalora Goicochea, JM Owen, P Pal, BK Palano, A Palutan, M Panman, J Papanestis, A Pappagallo, M Parkes, C Parkinson, CJ Passaleva, G Patel, GD Patel, M Patrick, GN Patrignani, C Pavel-Nicorescu, C Pazos Alvarez, A Pellegrino, A Penso, G Pepe Altarelli, M Perazzini, S Perego, DL Perez Trigo, E Pérez-Calero Yzquierdo, A Perret, P Perrin-Terrin, M Pessina, G Petridis, K Petrolini, A Phan, A Picatoste Olloqui, E Pietrzyk, B Pilař, T Pinci, D Playfer, S Plo Casasus, M Polci, F Polok, G Poluektov, A Polycarpo, E Popov, D Popovici, B Potterat, C Powell, A Prisciandaro, J Pugatch, V Puig Navarro, A Qian, W Rademacker, JH Rakotomiaramanana, B Rangel, MS Raniuk, I Rauschmayr, N Raven, G Redford, S Reid, MM dos Reis, AC Ricciardi, S Richards, A Rinnert, K Rives Molina, V Roa Romero, DA Robbe, P Rodrigues, E Rodriguez Perez, P Rogers, GJ Roiser, S Romanovsky, V Romero Vidal, A Rouvinet, J Ruf, T Ruiz, H Sabatino, G Saborido Silva, JJ Sagidova, N Sail, P Saitta, B Salzmann, C Sanmartin Sedes, B Sannino, M Santacesaria, R Santamarina Rios, C Santovetti, E Sapunov, M Sarti, A Satriano, C Satta, A Savrie, M Savrina, D Schaack, P Schiller, M Schindler, H Schleich, S Schlupp, M Schmelling, M Schmidt, B Schneider, O Schopper, A Schune, M-H Schwemmer, R Sciascia, B Sciubba, A Seco, M Semennikov, A Senderowska, K Sepp, I Serra, N Serrano, J Seyfert, P Shapkin, M Shapoval, I Shatalov, P Shcheglov, Y Shears, T Shekhtman, L Shevchenko, O Shevchenko, V Shires, A Silva Coutinho, R Skwarnicki, T Smith, NA Smith, E Smith, M Sobczak, K Sokoloff, MD Soler, FJP Soomro, F Souza, D Souza De Paula, B Spaan, B Sparkes, A Spradlin, P Stagni, F Stahl, S Steinkamp, O Stoica, S Stone, S Storaci, B Straticiuc, M Straumann, U Subbiah, VK Swientek, S Syropoulos, V Szczekowski, M Szczypka, P Szumlak, T TʼJampens, S Teklishyn, M Teodorescu, E Teubert, F Thomas, C Thomas, E van Tilburg, J Tisserand, V Tobin, M Tolk, S Tonelli, D Topp-Joergensen, S Torr, N Tournefier, E Tourneur, S Tran, MT Tresch, M Tsaregorodtsev, A Tsopelas, P Tuning, N Ubeda Garcia, M Ukleja, A Urner, D Uwer, U Vagnoni, V Valenti, G Vazquez Gomez, R Vazquez Regueiro, P Vecchi, S Velthuis, JJ Veltri, M Veneziano, G Vesterinen, M Viaud, B Vieira, D Vilasis-Cardona, X Vollhardt, A Volyanskyy, D Voong, D Vorobyev, A Vorobyev, V Voß, C Voss, H Waldi, R Wallace, R Wandernoth, S Wang, J Ward, DR Watson, NK Webber, AD Websdale, D Whitehead, M Wicht, J Wiechczynski, J Wiedner, D Wiggers, L Wilkinson, G Williams, MP Williams, M Wilson, FF Wishahi, J Witek, M Wotton, SA Wright, S Wu, S Wyllie, K Xie, Y Xing, F Xing, Z Yang, Z Young, R Yuan, X Yushchenko, O Zangoli, M Zavertyaev, M Zhang, F Zhang, L Zhang, WC Zhang, Y Zhelezov, A Zhokhov, A Zhong, L Zvyagin, A
Copyright, Publisher and Additional Information:	(c) 2013 CERN. Published by Elsevier B.V. All rights reserved. This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.
Dates:	Accepted: 18 February 2013 Published (online): 24 February 2013 Published: June 2013
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	08 Sep 2017 13:21
Last Modified:	08 Sep 2017 13:21
Status:	Published
Publisher:	Elsevier
Identification Number:	https://doi.org/10.1016/j.nuclphysb.2013.02.010
Related URLs:	Author

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Prompt charm production in pp collisions at √s=7 TeV

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