Prospects for exotic light scalar measurements at the e+e- Higgs factory

11 Oct 2023, 15:00
15m
Sala Cassandra (Hotel Ariston, Paestum)

Sala Cassandra

Hotel Ariston, Paestum

Zoom link: https://cern.zoom.us/j/69686279067?pwd=WkdKRW1yK1hEZ3MrRVYwZ05QY0wwZz09
ORAL WG1-SRCH - Physics Potential: Feebly interacting particles, direct low mass searches Parallel - WG1-SRCH

Speaker

Aleksander Filip Zarnecki (Faculty of Physics, University of Warsaw)

Description

The physics program of the Higgs factory will focus on measurements of the 125 GeV Higgs boson, with the Higgs-strahlung process being the dominant production channel at 250 GeV. However, production of extra light scalars is still not excluded by the existing experimental data, provided their coupling to the gauge bosons is sufficiently suppressed. Fermion couplings of such a scalar could also be very different from the SM predictions leading to non-standard decay paterns.
Considered in the presented study is the sensitivity of future Higgs factory experiments to direct observation of the new light scalar production for the scalar mass range from 50 GeV to 120 GeV.

Primary author

Aleksander Filip Zarnecki (Faculty of Physics, University of Warsaw)

Presentation materials