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# CERN Published Articles

Posledne pridané:
2021-06-22
06:00
 ALICE measurements of coherents $\rho^0$ photoproduction in Pb--Pb ultraperipheral collisions / Horak, David (CTU, Prague) /ALICE Collaboration The powerful photon fluxes of relativistic nuclei provide the possibility to study photonuclear and two-photon interactions in ultra-peripheral collisions (UPC), where the nuclei do not overlap and no strong nuclear interactions occur. Within the Vector Meson Dominance Model (VDM), the $\rho^0$ contribution dominates the QCD part of the photon structure function. [...] SISSA, 2020 - 6 p. - Published in : PoS LHCP2020 (2021) 225 In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.225

2021-06-22
06:00
 Z boson production in Pb-Pb collisions at 5.02 TeV / Aziz, Sizar (IJCLab, Orsay) /ALICE Collaboration The measurement of Z-boson production in Pb--Pb collisions at \fivenn is reported. It is performed in the dimuon decay channel, through the detection of muons with pseudorapidity $-4 < \eta_{\mu} < -2.5$ and transverse momentum $\pt^{\mu} > 20$ \GeVc. [...] SISSA, 2020 - 5 p. - Published in : PoS LHCP2020 (2021) 223 In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.223

2021-06-22
06:00
 The Forward Diffractive Detector for ALICE / Rojas, Solangel (CTU, Prague) /ALICE Collaboration ALICE (A Large Ion Collider Experiment) is one of the four main detectors at CERN LHC. In order to exploit the increased luminosity and interaction rate during the upcoming LHC Run 3 and 4, ALICE is now implementing a significant upgrade of its detectors and systems.The minimum latency interaction trigger, luminosity monitoring, precision collision time, and determination of centrality and event plane for heavy-ion collisions will be provided by the Fast Interaction Trigger (FIT). [...] SISSA, 2020 - 4 p. - Published in : PoS LHCP2020 (2021) 221 In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.221

2021-06-22
06:00
 Dark photon searches with the ATLAS detector at the LHC / El Jarrari, Hassnae (Rabat U.) /ATLAS Collaboration Many extensions to the Standard Model (SM) introduce a hidden or dark sector (DS) to provide candidates for dark matter in the universe and an explanation to astrophysical observations such as the positron excess observed in the cosmic radiation flux. This hidden sector could rise from an additional U(1)d gauge symmetry. [...] SISSA, 2020 - 5 p. - Published in : PoS LHCP2020 (2021) 220 In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.220

2021-06-22
06:00
 Searches for heavy diboson resonances in semi--leptonic final states in pp collisions at 13 TeV with the ATLAS detector / Xu, Zhongyukun (Shandong U. ; Michigan U.) A search for heavy resonances decaying into WW, ZZ or WZ is peformed using proton–proton collision data at a centre-of-mass energy of √ s = 13 TeV. The data, corresponding to an integrated luminosity of 139 fb−1 , were recorded with the ATLAS detector from 2015 to 2018 at the Large Hadron Collider. [...] SISSA, 2020 - 7 p. - Published in : PoS LHCP2020 (2021) 217 In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.217

2021-06-22
06:00
 Precise luminosity determination at CMS / Gadallah, Mahmoud (Eotvos U. ; Res. Group Stat. Biol., Budapest) /CMS Collaboration Precise luminosity calibration at bunched-beam hadron colliders like the Large Hadron Collider (LHC) is critical to determine fundamental parameters of the standard model and to discover or constrain beyond-the-standard-model phenomena. The results of luminosity determination at LHC interaction point 5 with the Compact Muon Solenoid (CMS) detector, using proton-proton (pp) collisions in 2018, is reported. [...] SISSA, 2020 - 5 p. - Published in : PoS LHCP2020 (2021) 214 In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020, pp.214

2021-06-22
06:00
 First $nK$ atom lifetime measurement and recent results from the DIRAC experiment / Zhabitsky, Mikhail (Dubna, JINR) /DIRAC Collaboration We report evidence for piK atoms production, using 24 GeV/c proton beam from CERN PS interacting with a thin Ni target. We have identified (178 +- 49) piK pairs, which were produced in a bound state - piK atom, which was subsequently broken-up (ionized) in the Ni target. [...] DIRAC-CONF-2014-01.- 2014 - 6 p. - Published in : EPJ Web Conf. 81 (2014) 01019 In : 13th International Workshop on Meson Production, Properties and Interaction, Cracow, Poland, 29 May - 3 Jun 2014, pp.01019

2021-06-19
06:25
 Methods of clutter modeling for development testing of hydroacoustic systems / Shafranyuk, A V (Unlisted, RU) ; Prokopovich, V V (Unlisted, RU) The paper considers an approach to the construction of a clutter model used in software of the technological part of the test bench for simulation and development testing of hydroacoustic systems. Simulation of clutter on antenna arrays is a rather complex independent task important from the point of view of ensuring the correct SNR for the simulated noise sources at the antenna input. [...] 2021 - 7 p. - Published in : J. Phys. : Conf. Ser. 1864 (2021) 012142 Fulltext: PDF;

2021-06-19
06:25
 Features of implementation of adaptive signals processing for a cylindrical antenna array with a horizontal generatrix / Melkanovich, V S (Unlisted, RU) The ways of overcoming the problems caused by the specific asymmetry of the side lobes of the channels formed at the output of cylindrical antenna arrays with a horizontal generatrix, which are relevant for underwater robots, are considered. An algorithmic solution is proposed based on the use of adaptive signal power limitation for solving detection-direction finding problems in combination with non-adaptive reception or the diagonal loading Capon algorithm for assessing the spectral and correlation characteristics of strong signals.. 2021 - 8 p. - Published in : J. Phys. : Conf. Ser. 1864 (2021) 012141 Fulltext: PDF;

2021-06-19
06:25
 Design of a direction finder based on the output of parallel hydroacoustic surveillance system / Melkanovich, V S (Unlisted, RU) The problem of synthesizing a direction finding algorithm based on a sample composed of the output signals of a limited number of channels of a scanning sonar system is considered. The problem is formulated as a search for the maximum of the likelihood function by its lattice representation. [...] 2021 - 8 p. - Published in : J. Phys. : Conf. Ser. 1864 (2021) 012140 Fulltext: PDF;