Dependence of the tt production cross section on the transverse momentum of the top quark

V. M. Abazov, B. Abbott, M. Abolins, B. S. Acharya, M. Adams, T. Adams, E. Aguilo, G. D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G. A. Alves, L. S. Ancu, M. Aoki, Y. Arnoud, M. Arov, A. Askew, B. Åsman, O. Atramentov, C. AvilaJ. BackusMayes, F. Badaud, L. Bagby, B. Baldin, D. V. Bandurin, S. Banerjee, E. Barberis, A. F. Barfuss, P. Baringer, J. Barreto, J. F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, J. A. Benitez, S. B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, T. A. Bolton, E. E. Boos, G. Borissov, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, X. B. Bu, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, T. H. Burnett, C. P. Buszello, P. Calfayan, B. Calpas, S. Calvet, E. Camacho-Pérez, J. Cammin, M. A. Carrasco-Lizarraga, E. Carrera, B. C.K. Casey, H. 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Greder, H. Greenlee, Z. D. Greenwood, E. M. Gregores, G. Grenier, P. Gris, J. F. Grivaz, A. Grohsjean, S. Grünendahl, M. W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, P. Haefner, S. Hagopian, J. Haley, I. Hall, L. Han, K. Harder, A. Harel, J. M. Hauptman, J. Hays, T. Hebbeker, D. Hedin, J. G. Hegeman, A. P. Heinson, U. Heintz, C. Hensel, I. Heredia-De La Cruz, K. Herner, G. Hesketh, M. D. Hildreth, R. Hirosky, T. Hoang, J. D. Hobbs, B. Hoeneisen, M. Hohlfeld, S. Hossain, P. Houben, Y. Hu, Z. Hubacek, N. Huske, V. Hynek, I. Iashvili, R. Illingworth, A. S. Ito, S. Jabeen, M. Jaffré, S. Jain, D. Jamin, R. Jesik, K. Johns, C. Johnson, M. Johnson, D. Johnston, A. Jonckheere, P. Jonsson, A. Juste, E. Kajfasz, D. Karmanov, P. A. Kasper, I. Katsanos, V. Kaushik, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y. N. Kharzheev, D. Khatidze, M. H. Kirby, M. Kirsch, J. M. Kohli, A. V. Kozelov, J. Kraus, A. Kumar, A. Kupco, T. KurČa, V. A. Kuzmin, J. Kvita, D. Lam, S. Lammers, G. Landsberg, P. Lebrun, H. S. Lee, W. M. Lee, A. Leflat, J. Lellouch, L. Li, Q. Z. Li, S. M. Lietti, J. K. Lim, D. Lincoln, J. Linnemann, V. V. Lipaev, R. Lipton, Y. Liu, Z. Liu, A. Lobodenko, M. Lokajicek, P. Love, H. J. Lubatti, R. Luna-Garcia, A. L. Lyon, A. K.A. Maciel, D. Mackin, P. Mättig, R. Magaña-Villalba, P. K. Mal, S. Malik, V. L. Malyshev, Y. Maravin, J. Martínez-Ortega, R. McCarthy, C. L. McGivern, M. M. Meijer, A. Melnitchouk, L. Mendoza, D. Menezes, P. G. Mercadante, M. Merkin, A. Meyer, J. Meyer, N. K. Mondal, T. Moulik, G. S. Muanza, M. Mulhearn, O. Mundal, L. Mundim, E. Nagy, M. Naimuddin, M. Narain, R. Nayyar, H. A. Neal, J. P. Negret, P. Neustroev, H. Nilsen, H. Nogima, S. F. Novaes, T. Nunnemann, G. Obrant, D. Onoprienko, J. Orduna, N. Osman, J. Osta, R. Otec, G. J. Otero y Garzón, M. Owen, M. Padilla, P. Padley, M. Pangilinan, N. Parashar, V. Parihar, S. J. Park, S. K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, B. Penning, M. Perfilov, K. Peters, Y. Peters, P. Pétroff, R. Piegaia, J. Piper, M. A. Pleier, P. L.M. Podesta-Lerma, V. M. Podstavkov, M. E. Pol, P. Polozov, A. V. Popov, M. Prewitt, D. Price, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, M. S. Rangel, K. Ranjan, P. N. Ratoff, I. Razumov, P. Renkel, P. Rich, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, M. Rominsky, C. Royon, P. Rubinov, R. Ruchti, G. Safronov, G. Sajot, A. Sánchez-Hernández, M. P. Sanders, B. Sanghi, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R. D. Schamberger, Y. Scheglov, H. Schellman, T. Schliephake, S. Schlobohm, C. Schwanenberger, R. Schwienhorst, J. Sekaric, H. Severini, E. Shabalina, V. Shary, A. A. Shchukin, R. K. Shivpuri, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, D. Smirnov, G. R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, B. Spurlock, J. Stark, V. Stolin, D. A. Stoyanova, J. Strandberg, M. A. Strang, E. Strauss, M. Strauss, R. 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Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

We present a measurement of the differential cross section for tt events produced in pp collisions at √s=1.96 TeV as a function of the transverse momentum (pT) of the top quark. The selected events contain a high-pT lepton (γ), a large imbalance in pT, four or more jets with at least one candidate for a b jet, and correspond to 1 fb-1 of integrated luminosity recorded with the D0 detector. Objects in the event are associated through a constrained kinematic fit to the tt → WbWb → γνbqq'b process. Results from next and next-to-next-to-leading-order perturbative QCD calculations agree with the measured differential cross section. Comparisons are also provided to predictions from Monte Carlo event generators using QCD calculations at different levels of precision.

Original languageEnglish
Pages (from-to)515-521
Number of pages7
JournalPhysics Letters B
Volume693
Issue number5
DOIs
StatePublished - Oct 18 2010
Externally publishedYes

Funding

We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI , Rosatom and RFBR (Russia); CNPq , FAPERJ , FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program , CFI , NSERC and WestGrid Project (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China).

FundersFunder number
MSMT
National Science Foundation
U.S. Department of Energy
CRC Health Group
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
California Earthquake Authority
Kortney Rose Foundation
Natural Sciences and Engineering Research Council of Canada
Canada Foundation for Innovation
Science and Technology Facilities CouncilST/H004068/1, PP/F000863/1, ST/H000992/1, PP/E000487/1, ST/H001166/1, ST/I505756/1, ST/F007418/1, ST/F00754X/1, ST/H00095X/2, ST/H00095X/1
Royal Society
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India
Science Foundation Ireland
Deutsche Forschungsgemeinschaft
Stichting voor Fundamenteel Onderzoek der Materie
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Grantová Agentura České Republiky
Russian Foundation for Basic Research
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Consejo Nacional de Investigaciones Científicas y Técnicas
Consejo Nacional de Ciencia y Tecnología
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Korea Science and Engineering Foundation
Vetenskapsrådet
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Centre National de la Recherche Scientifique
Federal Agency for Science and Innovation
State Atomic Energy Corporation ROSATOM
Fundação para o Desenvolvimento da UNESP
Secretaría de Ciencia y Técnica, Universidad de Buenos Aires
Institut National de Physique Nucléaire et de Physique des Particules

    Keywords

    • Differential cross sections
    • Perturbative QCD
    • Top quark

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