Measurement of the tt production cross section and the top quark mass in the dilepton channel in pp collisions at √s = 7 TeV: The CMS collaboration

The CMS collaboration

doi:10.1007/JHEP07(2011)049

Measurement of the tt production cross section and the top quark mass in the dilepton channel in pp collisions at √s = 7 TeV: The CMS collaboration

The CMS collaboration

Yerevan Physics Institute
Institut für Hochenergiephysik
European Organization for Nuclear Research
National Centre for Particle and High Energy Physics
University of Antwerp
Vrjie Universiteit Brussel
Université Libre de Bruxelles
Ghent University
University of Louvain
Université de Mons
Centro Brasileiro de Pesquisas Fisicas
Rua São Francisco de Xavier
São Paulo State University
Federal University of ABC (UFABC)
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Sofia
Institute of High Energy Physics, Chinese Academy of Sciences
Tsinghua University
Universidad de Los Andes, Colombia
University of Split
Ruđer Bošković Institute
University of Cyprus
Charles University
Egyptian Network of High Energy Physics
Suez Canal University
British University in Egypt
Fayoum University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
LUT University
Université Paris-Sud
CEA/UVSQ/CNRS
Soltan Institute for Nuclear Studies
Massachusetts Institute of Technology
Université de Strasbourg
Université de Haute Alsace
IGFL, Université de Lyon, Université Lyon 1
Tbilisi State University
RWTH Aachen University
c/o DESY
Joint Faculty of the Brandenburg University of Technology Cottbus Senftenberg
Moscow State University
Universität Hamburg
Institute of Meteorology and Climate Research
Institute of Nuclear Physics ”Demokritos”
University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
Eötvös Loránd University
University of Debrecen
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Bhabha Atomic Research Centre
Tata Institute of Fundamental Research, Mumbai
University of Visva-Bharati
Institute for Studies in Theoretical Physics and Mathematics (IPM)
Sharif University of Technology
Shiraz University
Isfahan University of Technology
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Politecnico di Bari
INFN Sezione di Bologna
University of Bologna
INFN Sezione di Catania
Università degli Studi di Catania
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Florence
LNF-INFN
University of Rome
Sezione di Genova
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
INFN Sezione di Napoli
Università degli Studi della Basilicata
University of Naples Federico II
INFN
University of Padova
Laboratori Nazionali di Legnaro
Università di Trento
INFN Sezione di Pavia
University of Pavia
INFN Sezione di Perugia
University of Perugia
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Scuola Normale Superiore di Pisa
University of Pisa
University of Siena
Sezione di Roma
INFN Sezione di Torino
University of Turin
Laboratory of Molecular Pathology
INFN Sezione di Trieste
University of Trieste
Kangwon National University
Kyungpook National University
Chonnam National University
Korea University
University of Seoul
Sungkyunkwan University
Vilnius University
CINVESTAV-IPN
Universidad Iberoamericana
Benemerita Universidad Autonoma de Puebla
Universidad Autónoma de San Luis Potosi
University of Auckland
University of Canterbury
Quaid-i-Azam University
University of Warsaw
Lisboa
Joint Institute for Nuclear Research, Dubna
Petersburg Nuclear Physics Institute (PNPI)
Institute for Nuclear Research of the Russian Academy of Sciences
Institute for Theoretical and Experimental Physics
California Institute of Technology
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Kurchatov Institute
University of Belgrade
University of Belgrade
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
Universidad Autónoma de Madrid
University of Oviedo
CSIC-Univ. Cantabria
University of California, Los Angeles
University of Florida
University of Geneva
Paul Scherrer Institut
University of Kansas
ETH Zurich
University of Zurich
National Central University
National Taiwan University
Cukurova University
Gaziosmanpasa University
Adiyaman University
University of Iowa
Mersin University
Middle East Technical University (METU)
Bogazici University
Izmir Institute of Technology
Kafkas University
Suleyman Demirel University
Ege University
Kharkov Institute of Physics and Technology
University of Bristol
CCLRC Rutherford Appleton Laboratory
University of Southampton
Imperial College London
Brunel University London
Baylor University
University of Alabama
Boston University
Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
University of California, Davis
University of California, Riverside
University of California, San Diego
Utah Valley University
University of California, Santa Barbara
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Fairfield University
Fermi National Accelerator Laboratory
Florida International University
Florida State University
Florida Institute of Technology
University of Illinois at Chicago
MST-8, Los Alamos National Laboratory
Erzincan University
Johns Hopkins University
Kansas State University
Lawrence Livermore National Laboratory
University of Maryland, College Park
University of Minnesota Twin Cities
University of Mississippi
University of Nebraska-Lincoln
University at Buffalo, The State University of New York
Northeastern University
Northwestern University
University of Notre Dame
The Ohio State University
Princeton University
University of Puerto Rico
Purdue University
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Rice University
University of Rochester
The Rockefeller University
Rutgers University–New Brunswick
University of Tennessee
Texas A&M University
Texas Tech University
Vanderbilt University
University of Virginia
Wayne State University
University of Wisconsin-Madison

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Abstract

The tt production cross section and top quark mass are measured in protonproton collisions at √s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb-1 collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identi cation are obtained and combined. The measured value is σtt = 168 ± 18 (stat:) ± 14 (syst:) ± 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass mtop is reconstructed with two di erent methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m_top = 175:5 ± 4:6 (stat:) ± 4:6 (syst:) GeV/c².

Original language	English
Article number	49
Journal	Journal of High Energy Physics
Volume	2011
Issue number	7
DOIs	https://doi.org/10.1007/JHEP07(2011)049
Publication status	Published - 1 Jan 2011

Keywords

Hadron-Hadron Scattering

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10.1007/JHEP07(2011)049

Cite this

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title = "Measurement of the tt production cross section and the top quark mass in the dilepton channel in pp collisions at √s = 7 TeV: The CMS collaboration",

abstract = "The tt production cross section and top quark mass are measured in protonproton collisions at √s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb-1 collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identi cation are obtained and combined. The measured value is σtt = 168 ± 18 (stat:) ± 14 (syst:) ± 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass mtop is reconstructed with two di erent methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of mtop = 175:5 ± 4:6 (stat:) ± 4:6 (syst:) GeV/c2.",

keywords = "Hadron-Hadron Scattering",

author = "\{The CMS collaboration\} and S. Chatrchyan and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and J. Hammer and S. H{\"a}nsel and M. Hoch and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and M. Krammer and D. Liko and I. Mikulec and M. Pernicka and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and F. Teischinger and P. Wagner and W. Waltenberger and G. Walzel and E. Widl and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Bansal and L. Benucci and \{De Wolf\}, \{E. A.\} and X. Janssen and J. Maes and T. Maes and F. Beaudette and \{Granier de Cassagnac\}, R. and C. Ochando and P. Paganini and R. Salerno and C. Thiebaux and A. Zabi and M. Nguyen",

year = "2011",

month = jan,

day = "1",

doi = "10.1007/JHEP07(2011)049",

language = "English",

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journal = "Journal of High Energy Physics",

issn = "1126-6708",

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T1 - Measurement of the tt production cross section and the top quark mass in the dilepton channel in pp collisions at √s = 7 TeV

T2 - The CMS collaboration

AU - The CMS collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hammer, J.

AU - Hänsel, S.

AU - Hoch, M.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Krammer, M.

AU - Liko, D.

AU - Mikulec, I.

AU - Pernicka, M.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Teischinger, F.

AU - Wagner, P.

AU - Waltenberger, W.

AU - Walzel, G.

AU - Widl, E.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Bansal, S.

AU - Benucci, L.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Maes, J.

AU - Maes, T.

AU - Beaudette, F.

AU - Granier de Cassagnac, R.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Thiebaux, C.

AU - Zabi, A.

AU - Nguyen, M.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - The tt production cross section and top quark mass are measured in protonproton collisions at √s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb-1 collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identi cation are obtained and combined. The measured value is σtt = 168 ± 18 (stat:) ± 14 (syst:) ± 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass mtop is reconstructed with two di erent methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of mtop = 175:5 ± 4:6 (stat:) ± 4:6 (syst:) GeV/c2.

AB - The tt production cross section and top quark mass are measured in protonproton collisions at √s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb-1 collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identi cation are obtained and combined. The measured value is σtt = 168 ± 18 (stat:) ± 14 (syst:) ± 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass mtop is reconstructed with two di erent methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of mtop = 175:5 ± 4:6 (stat:) ± 4:6 (syst:) GeV/c2.

KW - Hadron-Hadron Scattering

U2 - 10.1007/JHEP07(2011)049

DO - 10.1007/JHEP07(2011)049

M3 - Article

AN - SCOPUS:80053141241

SN - 1126-6708

VL - 2011

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 49

ER -

Measurement of the tt production cross section and the top quark mass in the dilepton channel in pp collisions at √s = 7 TeV: The CMS collaboration

Abstract

Keywords

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