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Probing Higgs couplings via vector boson scattering

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WH11E Sunrise

WH11E Sunrise
LPC Topic Of The Week 2026
Zoom Meeting ID
65029048274
Description
Please login if you have a cern account or email lpc-tw@fnal.gov to obtain the password to this meeting
Host
Ka Hei Martin Kwok
Alternative hosts
Keith Ulmer, Marguerite Belt Tonjes, Gabriele Benelli, Luigi Marchese
Useful links
Join via phone
Zoom URL
    • 15:00 → 16:00
      Probing Higgs couplings via vector boson scattering 1h

      The vector boson scattering (VBS) production of a Higgs boson in association with two vector bosons provides a direct probe of electroweak symmetry breaking and the scalar potential. This rare process has direct dependence on both the Higgs-gauge quartic coupling (HHVV) and the Higgs self-coupling. It also benefits from enhanced sensitivity, as any coupling deviation would disrupt the delicate cancellations in VBS amplitudes, causing cross sections to rise at high energies.

      In this seminar, I will present the first search for this process, highlighting novel AI techniques that allowed CMS to constrain the HHVV interaction and set the most stringent bounds to date on its WWHH and ZZHH components. As we collect more data, sensitivity to the Higgs self-coupling will improve, providing complementary sensitivity to di-Higgs searches. I will discuss ongoing efforts in this direction, including new transformer-based analysis strategies and the CMS High Granularity Calorimeter upgrade.

      Speaker: Maria Mazza (Florida State University (US))
      GMT20260505-200224_Recording_1760x900.mp4
      TOTW_20260505_MariaMazza.pdf