Počet záznamů: 1  

Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in √s = 8 TeV proton-proton collisions using the ATLAS detector

  1. 1.
    0470749 - FZÚ 2017 RIV US eng J - Článek v odborném periodiku
    Aad, G. - Abbott, B. - Abdallah, J. - Chudoba, Jiří - Havránek, Miroslav - Hejbal, Jiří - Jakoubek, Tomáš - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Vrba, Václav … celkem 2874 autorů
    Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in √s = 8 TeV proton-proton collisions using the ATLAS detector.
    Physical Review D. Roč. 93, č. 3 (2016), s. 1-34, č. článku 032009. ISSN 2470-0010. E-ISSN 2470-0029
    Institucionální podpora: RVO:68378271
    Klíčová slova: CERN LHC Coll * ATLAS * experimental results * 8000 GeV-cms * data analysis method
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 4.557, rok: 2016

    The differential cross-section for pair production of top quarks with high transverse momentum is measured in 20.3  fb-1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The measurement is performed for tt¯ events in the lepton+jets channel. The cross-section is reported as a function of the hadronically decaying top quark transverse momentum for values above 300 GeV. The hadronically decaying top quark is reconstructed as an anti-kt jet with radius parameter R=1.0 and identified with jet substructure techniques. The observed yield is corrected for detector effects to obtain a cross-section at particle level in a fiducial region close to the event selection. A parton-level cross-section extrapolated to the full phase space is also reported for top quarks with transverse momentum above 300 GeV. The predictions of a majority of next-to-leading-order and leading-order matrix-element Monte Carlo generators are found to agree with the measured cross-sections.

    Trvalý link: http://hdl.handle.net/11104/0268325

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.