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High-precision measurement of the W boson mass with the CDF II detector.

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Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

Aula Conversi

Dip. di Fisica - Edificio G. Marconi
Christopher Hays (Oxford University)
Description

The mass of the W boson, a mediator of the weak force between elementary particles, is tightly constrained by the symmetries of the standard model of particle physics. The Higgs boson was the last missing component of the model. After observation of the Higgs boson, a measurement of the W boson mass provides a stringent test of the model. We measure the W boson mass, using data corresponding to 8.8 fb-1 of integrated luminosity collected in proton-antiproton collisions at a 1.96 TeV center-of-mass energy with the CDF II detector at Fermilab. The measured mass, 80433.5±6.4 stat ± 6.9 sys GeV, is in significant tension with the standard model expectation.

Zoom connection: https://uniroma1.zoom.us/j/87038625161?pwd=cEtGRjZNT2VWSlJIWmxaYmxSMDhRZz09#success

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    • 1
      Welcome
      Speaker: Aleandro Nisati (Istituto Nazionale di Fisica Nucleare)
    • 2
      High-precision measurement of the W boson mass with the CDF II detector
      Speaker: Christopher Hays (Oxford Univ.)
    • 15:30
      Coffee break
    • 3
      ATLAS
      Speakers: Francesco Giuli (CERN), Francesco Giuli (R), Francesco Giuli (Istituto Nazionale di Fisica Nucleare)
      FGiuli_mW_Sapienza_100522.pdf
    • 4
      CMS
      Speaker: Marco Cipriani (CERN)
      cipriani_2022May10_Whelicity_v2.pdf
    • 5
      LHCb
      Speaker: Lorenzo Sestini (Istituto Nazionale di Fisica Nucleare)
      wmass_lhcb_roma.pdf
    • 6
      Theory context and implications
      Speaker: Luca Silvestrini (Istituto Nazionale di Fisica Nucleare)
      silvestrini@MW.pdf
    • 7
      Discussion
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