https://doi.org/10.1140/epjc/s10052-017-4680-5
Special Article - Tools for Experiment and Theory
Study the effect of beam energy spread and detector resolution on the search for Higgs boson decays to invisible particles at a future e
e
circular collider
1
Scuola Normale Superiore, Pisa, Italy
2
CERN, Geneva, Switzerland
* e-mail: michele.de.gruttola@cern.ch
Received:
9
June
2016
Accepted:
3
February
2017
Published online:
18
February
2017
We study the expected sensitivity to measure the branching ratio of Higgs boson decays to invisible particles at a future circular 
collider (FCC-ee) in the process 
with 
(
or 
) using an integrated luminosity of 3.5 ab
at a center-of-mass energy 
GeV. The impact of the energy spread of the FCC-ee beam and of the resolution in the reconstruction of the leptons is discussed. The minimum branching ratio for a 
observation after 3.5 ab of data taking is 
. The branching ratio exclusion limit at 95% CL is 
.
© The Author(s), 2017
