Title
Measurement of the integrated and differential t̅t production cross sections for high-pt top quarks in pp collisions at √s =8 TeV
Date Issued
12 October 2016
Access level
open access
Resource Type
journal article
Author(s)
Khachatryan V.
Sirunyan A.M.
Tumasyan A.
Adam W.
Asilar E.
Bergauer T.
Brandstetter J.
Brondolin E.
Dragicevic M.
Erö J.
Flechl M.
Friedl M.
Frühwirth R.
Ghete V.M.
Hartl C.
Hörmann N.
Hrubec J.
Jeitler M.
König A.
Krammer M.
Krätschmer I.
Liko D.
Matsushita T.
Mikulec I.
Rabady D.
Rad N.
Rahbaran B.
Rohringer H.
Schieck J.
Strauss J.
Treberer-Treberspurg W.
Waltenberger W.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez Gonzalez J.
Alderweireldt S.
Cornelis T.
De Wolf E.A.
Janssen X.
Knutsson A.
Lauwers J.
Luyckx S.
Van De Klundert M.
Van Haevermaet H.
Van Mechelen P.
Van Remortel N.
Van Spilbeeck A.
Abu Zeid S.
Blekman F.
D'Hondt J.
Daci N.
De Bruyn I.
Deroover K.
Heracleous N.
Keaveney J.
Lowette S.
Moortgat S.
Moreels L.
Olbrechts A.
Python Q.
Strom D.
Tavernier S.
Van Doninck W.
Van Mulders P.
Van Parijs I.
Brun H.
Caillol C.
Clerbaux B.
De Lentdecker G.
Fasanella G.
Favart L.
Goldouzian R.
Grebenyuk A.
Karapostoli G.
Lenzi T.
Léonard A.
Maerschalk T.
Marinov A.
Randle-Conde A.
Seva T.
Vander Velde C.
Vanlaer P.
Yonamine R.
Zenoni F.
Zhang F.
Benucci L.
Cimmino A.
Crucy S.
Dobur D.
Fagot A.
Garcia G.
Gul M.
McCartin J.
Ocampo Rios A.A.
Poyraz D.
Ryckbosch D.
Salva S.
Schöfbeck R.
Sigamani M.
Publisher(s)
American Physical Society
Abstract
The cross section for pair production of top quarks (tt) with high transverse momenta is measured in pp collisions, collected with the CMS detector at the LHC with s=8 TeV in data corresponding to an integrated luminosity of 19.7 fb-1. The measurement is performed using lepton+jets events, where one top quark decays semileptonically, while the second top quark decays to a hadronic final state. The hadronic decay is reconstructed as a single, large-radius jet, and identified as a top quark candidate using jet substructure techniques. The integrated cross section and the differential cross sections as a function of top quark pT and rapidity are measured at particle level within a fiducial region related to the detector-level requirements and at parton level. The particle-level integrated cross section is found to be σtt=0.499±0.035(stat+syst)±0.095(theo)±0.013(lumi) pb for top quark pT>400 GeV. The parton-level measurement is σtt=1.44±0.10(stat+syst)±0.29(theo)±0.04(lumi) pb. The integrated and differential cross section results are compared to predictions from several event generators.
Volume
94
Issue
7
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Física atómica, molecular y química
Scopus EID
2-s2.0-84991813006
Source
Physical Review D
ISSN of the container
15507998
Sponsor(s)
National Science Foundation - 1120138, 1151640, 1211067, 1314131, 1401223, 1506130, 1506168, 1508869, 1606321.
Science and Technology Facilities Council - GRIDPP, PP/E000479/1, PP/E002803/1, ST/H000925/1, ST/H000925/2, ST/I000305/1, ST/I003622/1, ST/J004871/1, ST/J005479/1, ST/K001256/1, ST/K001531/1, ST/K001639/1, ST/K003542/1, ST/L005603/1, ST/M002020/1, ST/M004775/1, ST/N000242/1, ST/N000250/1, ST/N001273/1.
Sources of information:
Directorio de Producción Científica
Scopus