A. A. Abdelalim
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View article: Status of the FCC-ee interaction region design
Status of the FCC-ee interaction region design Open
This paper presents a comprehensive overview of the Machine Detector Interface (MDI) design developed for the FCC-ee Feasibility Study. It highlights novel studies related to the lightweight interaction region, including a mechanical model…
View article: Study on discharge and short circuit generation in CMS GE1/1 triple-GEM detectors during Run 3
Study on discharge and short circuit generation in CMS GE1/1 triple-GEM detectors during Run 3 Open
The installation of the new GE1/1 station of Gas Electron Multiplier (GEM) detectors in the Compact Muon Solenoid (CMS) experiment was completed during the Long Shutdown 2 (LS2) phase of the Large Hadron Collider (LHC). The GE1/1 station h…
View article: Impact of magnetic field on the stability of the CMS GE1/1 GEM detector operation
Impact of magnetic field on the stability of the CMS GE1/1 GEM detector operation Open
The Gas Electron Multiplier (GEM) detectors of the GE1/1 station of the CMS experiment have been operated in the CMS magnetic field for the first time on the 7 th of October 2021. During the magnetic field ramps, several discharge phenomen…
View article: Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum
Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum Open
The calculation of chargino-nutralino pair production at the LHC with √s = 14 TeV had been studied. Different benchmark points are evaluated for the chargino-nutralino pair production using MSSM for four conditions on mass parameters. The …
View article: Benchmarking LHC background particle simulation with the CMS triple-GEM detector
Benchmarking LHC background particle simulation with the CMS triple-GEM detector Open
In 2018, a system of large-size triple-GEM demonstrator chambers was installed in the CMS experiment at CERN's Large Hadron Collider (LHC). The demonstrator's design mimicks that of the final detector, installed for Run-3. A successful Mon…
View article: Performance of a triple-GEM demonstrator in pp collisions at the CMS detector
Performance of a triple-GEM demonstrator in pp collisions at the CMS detector Open
After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), the collision rate and therefore the background rate will significantly increase, particularly in the high η region. To improve both the tracking and triggering …
View article: arXiv : Modeling the triple-GEM detector response to background particles for the CMS Experiment
arXiv : Modeling the triple-GEM detector response to background particles for the CMS Experiment Open
An estimate of environmental background hit rate on triple-GEM chambers is performed using Monte Carlo (MC) simulation and compared to data taken by test chambers installed in the CMS experiment (GE1/1) during Run-2 at the Large Hadron Col…
View article: Performance of a Triple-GEM Demonstrator in $pp$ Collisions at the CMS \n Detector
Performance of a Triple-GEM Demonstrator in $pp$ Collisions at the CMS
\n Detector Open
After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), \nthe collision rate and therefore the background rate will significantly \nincrease, particularly in the high $\\eta$ region. To improve both the tracking \nand…
View article: Di-photon decay of a light Higgs state in the BLSSM
Di-photon decay of a light Higgs state in the BLSSM Open
In the context of the $B-L$ Supersymmetric Standard Model (BLSSM), we investigate the consistency of a light Higgs boson, with mass around $90-95$ GeV, with the results of a search performed by the CMS collaboration in the di-photon channe…
View article: Triple-GEM discharge probability studies at CHARM: simulations and experimental results
Triple-GEM discharge probability studies at CHARM: simulations and experimental results Open
The CMS muon system in the region with 2.03
View article: Interstrip capacitances of the readout board used in large triple-GEM detectors for the CMS Muon Upgrade
Interstrip capacitances of the readout board used in large triple-GEM detectors for the CMS Muon Upgrade Open
We present analytical calculations, Finite Element Analysis modelling, and physical measurements of the interstrip capacitances for different potential strip geometries and dimensions of the readout boards for the GE2/1 triple-Gas Electron…
View article: Determination of the strange-quark density of the proton from ATLAS measurements of the W___ and Z___ cross sections.
Determination of the strange-quark density of the proton from ATLAS measurements of the W___ and Z___ cross sections. Open
A QCD analysis is reported of ATLAS data on inclusive W(±) and Z boson production in pp collisions at the LHC, jointly with ep deep-inelastic scattering data from HERA. The ATLAS data exhibit sensitivity to the light quark sea composition …
View article: GEM Performance Studies in CMS Experiment with Four Muons Final State
GEM Performance Studies in CMS Experiment with Four Muons Final State Open
The standard model (SM) of particle physics, although it is a very successful theory and compatible with all experimental results, it has a number of shortcomings, in particular it provides no answer for the three generations of fermions. …
View article: The Triple GEM Detector Control System for CMS forward muon spectrometer upgrade
The Triple GEM Detector Control System for CMS forward muon spectrometer upgrade Open
The CMS experiment at LHC will upgrade its forward muon spectrometer by incorporating Triple-GEM detectors. This upgrade referred to as GEM Endcap (GE1/1), consists of adding two back-to-back Triple-GEM detectors in front of the existing C…
View article: Design of a constant fraction discriminator for the VFAT3 front-end ASIC of the CMS GEM detector
Design of a constant fraction discriminator for the VFAT3 front-end ASIC of the CMS GEM detector Open
In this work the design of a constant fraction discriminator (CFD) to be used in the VFAT3 chip for the read-out of the triple-GEM detectors of the CMS experiment, is described. A prototype chip containing 8 CFDs was implemented using 130 …