Autores
Vardan Khachatryan, Albert M Sirunyan, Armen Tumasyan, W Adam, T Bergauer, M Dragicevic, J Erö, M Friedl, R Fruehwirth, VM Ghete, J Hammer, S Haensel, M Hoch, N Hoermann, J Hrubec, M Jeitler, G Kasieczka, M Krammer, D Liko, I Mikulec, M Pernicka, H Rohringer, R Schoefbeck, J Strauss, A Taurok, F Teischinger, W Waltenberger, G Walzel, E Widl, C-E Wulz, V Mossolov, N Shumeiko, J Suarez Gonzalez, Leonardo Benucci, EA De Wolf, M Hashemi, X Janssen, T Maes, L Mucibello, S Ochesanu, R Rougny, M Selvaggi, H Van Haevermaet, P Van Mechelen, N Van Remortel, Volker Adler, S Beauceron, J D’Hondt, O Devroede, A Kalogeropoulos, J Maes, MU Mozer, S Tavernier, W Van Doninck, P Van Mulders, I Villella, EC Chabert, O Charaf, B Clerbaux, G De Lentdecker, V Dero, APR Gay, GH Hammad, PE Marage, C Vander Velde, P Vanlaer, J Wickens, M Grunewald, Benjamin Klein, Andrey Marinov, Dirk Ryckbosch, Filip Thyssen, Michael Tytgat, Lukas Vanelderen, Piet Verwilligen, S Walsh, S Basegmez, G Bruno, J Caudron, E Cortina Gil, J De Favereau De Jeneret, C Delaere, P Demin, D Favart, A Giammanco, G Gregoire, J Hollar, V Lemaitre, F Maltoni, O Militaru, S Ovyn, K Piotrzkowski, L Quertenmont, N Schul, N Beliy, T Caebergs, E Daubie, P Herquet, GA Alves, ME Pol, MHG Souza, W Carvalho, EM Da Costa, D De Jesus Damiao, C De Oliveira Martins, S Fonseca De Souza, L Mundim, V Oguri, A Santoro, SM Silva Do Amaral, A Sznajder, F Torres Da Silva De Araujo, FA Dias, MAF Dias, TR Fernandez Perez Tomei, EM Gregores, F Marinho, SF Novaes, Sandra S Padula, J Damgov, N Darmenov, L Dimitrov, V Genchev, P Iaydjiev, S Piperov, S Stoykova, G Sultanov, R Trayanov, I Vankov, R Hadjiiska, V Kozhuharov, L Litov, M Mateev, B Pavlov, P Petkov, GM Chen, HS Chen, CH Jiang, D Liang, S Liang, X Meng, J Tao, J Wang, X Wang, Z Wang, J Zang, Z Zhang, Y Ban, S Guo, Z Hu
Fecha de publicación
2010/2
Revista
Journal of High Energy Physics
Volumen
2010
Número
2
Páginas
1-35
Editor
Springer-Verlag
Descripción
Measurements of inclusive charged-hadron transverse-momentum and pseudorapidity distributions are presented for proton-proton collisions at and 2.36 TeV. The data were collected with the CMS detector during the LHC commissioning in December 2009. For non-single-diffractive interactions, the average charged-hadron transverse momentum is measured to be 0.46±0.01 (stat.)±0.01 (syst.) GeV/c at 0.9 TeV and 0.50±0.01 (stat.)±0.01 (syst.) GeV/c at 2.36 TeV, for pseudorapidities between--2.4 and+ 2.4. At these energies, the measured pseudorapidity densities in the central region, dN ch/dη|| η|< 0.5, are 3: 48±0: 02 (stat.)±0.13 (syst.) and 4: 47±0: 04 (stat.)±0.16 (syst.), respectively. The results at 0.9 TeV are in agreement with previous measurements and confirm the expectation of near equal hadron production in and pp collisions. The results at 2.36 TeV represent the highest-energy measurements …
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