A. Basalaev
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View article: Mitigating effects of nonlinearities in homodyne quadrature interferometers
Mitigating effects of nonlinearities in homodyne quadrature interferometers Open
Homodyne Quadrature interferometers (HoQI) are an interferometric displacement sensing scheme proven to have excellent noise performance, making them a strong candidate for sensing and control schemes in gravitational wave detector seismic…
View article: Reducing suspension control noise with interferometric sensors—an experimental concept
Reducing suspension control noise with interferometric sensors—an experimental concept Open
One of the limiting noise sources of ground-based gravitational wave detectors at frequencies below 30 Hz is control-induced displacement noise. Compact laser interferometric sensors are a prime candidate for improved local displacement se…
View article: Testing compact, fused silica resonator based inertial sensors in a gravitational wave detector prototype facility
Testing compact, fused silica resonator based inertial sensors in a gravitational wave detector prototype facility Open
Future gravitational wave observatories require significant advances in all aspects of their seismic isolation; inertial sensors being a pressing example. Inertial sensors using gram-scale high mechanical Q factor ( Q ) glass resonators co…
View article: Search for Gravitational Waves Emitted from SN 2023ixf
Search for Gravitational Waves Emitted from SN 2023ixf Open
We present the results of a search for gravitational-wave transients associated with core-collapse supernova SN 2023ixf, which was observed in the galaxy Messier 101 via optical emission on 2023 May 19, during the LIGO–Virgo–KAGRA 15th Eng…
View article: Characterizing seismic isolation using convolutional neural networks and Wiener filters
Characterizing seismic isolation using convolutional neural networks and Wiener filters Open
We investigate seismic motion propagation through a passively isolated mechanical system, using Wiener filters and convolutional neural networks with time-dilation layers. The goal of this study was to explore the capabilities of neural ne…
View article: A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+2154
A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+2154 Open
The magnetar SGR 1935+2154 is the only known Galactic source of fast radio bursts (FRBs). FRBs from SGR 1935+2154 were first detected by the Canadian Hydrogen Intensity Mapping Experiment (CHIME)/FRB and the Survey for Transient Astronomic…
View article: Characterizing seismic isolation using convolutional neural networks and Wiener filters
Characterizing seismic isolation using convolutional neural networks and Wiener filters Open
We investigate seismic motion propagation through a passively isolated mechanical system, using Wiener filters and convolutional neural networks with time-dilation layers. The goal of this study was to explore the capabilities of neural ne…
View article: Auf den Spuren des Urknalls
Auf den Spuren des Urknalls Open
Zusammenfassung Seit der LIGO‐Kollaboration Ende 2015 der erste direkte Nachweis gravitationsbedingter Ausbreitungen von Raumzeit‐Störungen gelang, steht ein weiteres Werkzeug zur Beobachtung des Weltalls zur Verfügung. In verschiedensten …
View article: Search for rare decays of the Higgs boson with the ATLAS detector
Search for rare decays of the Higgs boson with the ATLAS detector Open
The Standard Model predicts several rare Higgs boson decay channels, some of which are currently within experimental reach. Among these is the decay to a lepton pair and a photon, $H\\rightarrow\\ell\\ell\\gamma$ ($\\ell=e,\\mu$). The obse…
View article: Search for the Higgs boson in the final state with two leptons and a photon produced in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
Search for the Higgs boson in the final state with two leptons and a photon produced in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector Open
A search for the Higgs boson decaying into a $Z$ boson and a photon with two electrons or muons and a photon in the final state is presented. A data set of 139 $\\text{fb}^{-1}$ of $pp$ collisions at a center-of-mass energy of 13 TeV recor…
View article: Search for dark matter particle candidates produced in association with a Z boson in pp collisions at a center-of-mass energy of 13 TeV with the ATLAS detector
Search for dark matter particle candidates produced in association with a Z boson in pp collisions at a center-of-mass energy of 13 TeV with the ATLAS detector Open
A search for dark matter particle candidates produced in association with a Z boson in proton-proton collisions at the total center-of-mass energy of 13 TeV is presented. The search uses 36.1 inverse femtobarn of data collected by the ATLA…
View article: The Fast Simulation Chain for ATLAS
The Fast Simulation Chain for ATLAS Open
In order to generate the huge number of Monte Carlo events that will be required by the ATLAS experiment over the next several runs, a very fast simulation is critical. Fast detector simulation alone, however, is insufficient: with very hi…
View article: Study of the di-lepton final state with missing transverse momentum with the ATLAS detector
Study of the di-lepton final state with missing transverse momentum with the ATLAS detector Open
Common analysis techniques are reviewed for di-lepton searches with large missing transverse momentum in proton-proton collisions in ATLAS detector at the LHC. Background estimates and corresponding systematic uncertainties are shown. The …
View article: Search for WIMP dark matter produced in association with a Z boson with the ATLAS detector
Search for WIMP dark matter produced in association with a Z boson with the ATLAS detector Open
The search for weakly interacting dark matter particle (WIMP) candidates produced in association with a Z boson with the ATLAS detector at the LHC is presented. Events with large missing transverse momentum and consistent with the decay of…
View article: Mono-Z dark matter search with the ATLAS detector
Mono-Z dark matter search with the ATLAS detector Open
A search with ATLAS detector is presented for collider signatures of weakly interacting dark matter particles (WIMPs) leading to mono-Z signal. Events with large missing transverse momentum and two oppositely-charged electrons or muons con…