Počet záznamů: 1  

Measurement of the Higgs boson mass from the H -> gamma gamma and H -> ZZ* -> 4l channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector

  1. 1.
    0439801 - FZÚ 2015 RIV US eng J - Článek v odborném periodiku
    Aad, G. - Abbott, B. - Abdallah, J. - Böhm, Jan - Chudoba, Jiří - Havránek, Miroslav - Hejbal, Jiří - Jakoubek, Tomáš - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Vrba, Václav … celkem 2900 autorů
    Measurement of the Higgs boson mass from the H -> gamma gamma and H -> ZZ* -> 4l channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector.
    Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 90, č. 5 (2014), "052004-1"-"052004-10". ISSN 1550-7998
    Grant CEP: GA MŠMT(CZ) LG13009
    Institucionální podpora: RVO:68378271
    Klíčová slova: Higgs particle * width * ATLAS * mass spectrum * CERN LHC Coll * calibration * CERN Lab * electron * photon
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 4.643, rok: 2014

    An improved measurement of the mass of the Higgs boson is derived from a combined fit to the invariant mass spectra of the decay channels H→γγ and H→ZZ*→4ℓ. The analysis uses the pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at center-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 25 fb−1. The measured value of the Higgs boson mass is mH = 125.36 ± 0.37 (stat) ± 0.18 (syst) GeV. This result is based on improved energy-scale calibrations for photons, electrons, and muons as well as other analysis improvements, and supersedes the previous result from ATLAS. Upper limits on the total width of the Higgs boson are derived from fits to the invariant mass spectra of the H→γγ and H→ZZ*→4ℓ decay channels.
    Trvalý link: http://hdl.handle.net/11104/0242995

     
     
Počet záznamů: 1  

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