ILC Workshop on Potential Experiments (ILCX2021)

Session

H&O: BSM particle production & Fixed target / Dark sectors / Applications outside particle physics

28 Oct 2021, 15:30

Room #6 (Zoom Meeting ID: 819 7353 2455)

Presentation materials

Zoom Link (Room #6)

2. Physics with far detectors at future lepton colliders

Zeren Simon Wang (NTHU (TW))

28/10/2021, 15:30

Session H: BSM particle production

Oral presentation using Zoom

At the Large Hadron Collider (LHC), several far detectors such as FASER and MATHUSLA have been proposed to target the long-lived particles (LLPs) featured with displaced vertices. Naturally one question arises as to the feasibility of installing similar far detectors at future lepton colliders like the CEPC and FCC-ee. Because of the different kinematics of final state particles and the...

326. Physics reach of a long-lived particle detector at Belle II

Susanne Westhoff

28/10/2021, 16:00

Session O: Fixed target / Dark sectors / Applications outside particle physics

Oral presentation using Zoom

This talk summarizes a study of realistic design options for a far detector at the Belle II experiment, dubbed GAZELLE. We have quantified the sensitivity of such a detector to long-lived particles produced in e+e- collisions for three benchmark scenarios: axion-like particles, heavy neutral leptons, and a dark matter scenario with a light scalar. GAZELLE will moderately improve the...

93. Search for new light particles using MeV photon beam at the ILC

Hajime Fukuda

28/10/2021, 16:30

Session O: Fixed target / Dark sectors / Applications outside particle physics

Oral presentation using Zoom

As a postron source at the ILC, it is discussed to use pair creation processes by a $\mathcal{O}(\text{MeV})$ photon beam, which is generated from the high-energy electron beam. The current design expects that the photon flux would be as intense as ${10}^{17}$ photons / s, being the strongest MeV photon source available on the ground.
We propose to use this photon beam for the search for new...