Detector optimization for $X(2370)$ with $\bar{p}p$ collisions

by Moritz Terwissen (Ruhr-Universitaet Bochum (DE))

Tuesday 30 Jun 2026, 15:00 → 15:45 Europe/Zurich

NB2/158 (RUB)

Abstract:

In this seminar I will present my masters thesis, which is a feasibility and performance study of detecting the glueball candidate $X(2370)$ 
in $\bar{p}p$ reactions for a precursor experiment for PANDA by using COSY.

Two decay channels, 
$X(2370) \to f_0(980)(\to K^+K^−)\eta′(\to \pi^+\pi−\eta(\to \gamma\gamma))$ (Kaon channel)
and 
$X(2370) \to f_0(980)(\to \pi^+\pi−)\eta′(\to\pi^+\pi−\eta(\to \gamma\gamma))$ (Pion channel), 
are investigated. 

Due to the low required beam momentum of approximately 1.8452 GeV/c this is attractive for this possibly early stage experiment.
Simulations are needed to define angular coverage and resolution requirements for the components needed for charged and neutral 
particle detection. The simulations are performed using the HepFastSim framework, to generate signal and background processes. 
No material interactions are simulated, and particle properties are instead smeared according to the detector resolutions, 
e.g. in angle or momentum. Events are generated according to the available phase space. 

The simplifications allow quick testing of different setups compared to regular simulations. Studies for the impact of different 
tracking or calorimeter resolutions are performed and discussed. Using the results from the signal and background studies the 
signal-to-background ratio is calculated. The needed cross section is estimated for a ratio $> 1$ to estimate how sensitive 
the measurements might be.