CERN Accelerating science

Published Articles

უკანასკნელი დამატებები:
2022-01-27
06:01
Search for Rare Decays of the Observed Higgs Boson and Additional Higgs Bosons with the ATLAS Detector / Kano, Y (Nagoya U.) /ATLAS Collaboration
Searches for rare decays of the Standard Model Higgs boson and additional Higgs bosons are performed by the ATLAS experiment at the LHC. They use the unprecedented amount of collision data collected during the LHC $pp$ collision run at $\sqrt{s}=13$ TeV in 2015–2018, corresponding to an integrated luminosity of $139\text{ fb}^{-1}$ after the data quality requirements. [...]
2021 - 5 p. - Published in : Phys. At. Nucl. 84 (2021) 535-539

In : 5th International Conference on Particle Physics and Astrophysics (ICPPA), pp.535-539

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Precision Measurement of the Monthly Carbon and Oxygen Fluxes in Cosmic Rays with the Alpha Magnetic Spectrometer on the International Space Station / Donnini, Federico (INFN, Perugia) /AMS Collaboration
The precision measurements of the monthly carbon and oxygen cosmic ray fluxes for the period from May 2011 to May 2018 with Alpha Magnetic Spectrometer on the International Space Station are presented. This period covers the ascending phase of solar cycle 24 together with the reversal of the Sun’s magnetic field polarity through the maximum [...]
2020 - 7 p. - Published in : PoS ICRC2019 (2020) 161 Fulltext: PDF;
In : 36th International Cosmic Ray Conference, Madison, WI, USA, 24 Jul - 1 Aug 2019, pp.161

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Towards Understanding the Origin of Cosmic RayElectrons with Precision Results from AMS on ISS / Xu, Weiwei (Shandong U.) /AMS-02 Collaboration
The precision measurements of the cosmic ray electron flux in the energy range from 0.5 GeVto 1.4 TeV based on 28.1 million electrons collected by the Alpha Magnetic Spectrometer onthe International Space Station in its first 6.5 years operation. The AMS electron flux exhibits asignificant excess starting from 42.1 +5.4 −5.2 GeV compared to the lower energy power law trend. [...]
2021 - 8 p. - Published in : PoS ICRC2019 (2020) 1183 Fulltext: PDF;
In : 36th International Cosmic Ray Conference, Madison, WI, USA, 24 Jul - 1 Aug 2019, pp.1183

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Electron and Photon Performance in CMS in Run-2 and Prospects for Run-3 / Mukherjee, Swagata (RWTH Aachen U.) /CMS Collaboration
The rich physics program of CMS experiment depends on the ability to trigger, reconstruct and identify events with electrons and photons with the CMS detector with excellent efficiency and precision. This article reports an overview of reconstruction and identification of electrons and photons in the CMS detector at the Run-2 of the LHC, and plans for upcoming Run-3. [...]
2021 - 8 p. - Published in : Phys. At. Nucl. 84 (2021) 571-578

In : 5th International Conference on Particle Physics and Astrophysics (ICPPA), pp.571-578

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Latest results for Proton-proton Cross Section Measurements with the TOTEM experiment at LHC / Cafagna, Francesco S (INFN, Bari) /TOTEM Collaboration
The precise knowledge of the proton-proton cross section is extremely important to model the development, in the atmosphere, of the showers induced by the interaction of ultra high energy cosmic rays.The TOTEM (TOTal cross section, Elastic scattering and diffraction dissociation Measurement at the LHC) experiment, located at the interaction point 5 of the LHC, has measured the total, elastic and inelastic proton-proton cross-sections, using a luminosity independent method, based on the optical theorem, in a center-of-mass energy range from 2.76 to 13 TeV. The elastic scattering was investigated in a wide range of the squared four-momentum transfer |t| allowing the study of Coulomb-nuclear interference region down to |t| ~8 x \(10^{-4} GeV^{2}\). [...]
2021 - 8 p. - Published in : PoS ICRC2019 (2021) 207 Fulltext: PDF;
In : 36th International Cosmic Ray Conference, Madison, WI, USA, 24 Jul - 1 Aug 2019, pp.207

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Prospects of non-resonant Higgs pair production at the HL-LHC and HE-LHC / Adhikary, Amit (Bangalore, Indian Inst. Sci.) ; Banerjee, Shankha (Durham U., IPPP) ; Barman, Rahool Kumar (IACS, Kolkata) ; Bhattacherjee, Biplob (Bangalore, Indian Inst. Sci.) ; Niyogi, Saurabh (Gokhale Coll., Calcutta)
The prospects of observing the di-Higgs production in the Standard Model (SM) is explored. We choose final states based on considerable production rate and cleanliness. [...]
2020 - 8 p. - Published in : J. Phys. : Conf. Ser. 1690 (2020) 012149
In : 5th International Conference on Particle Physics and Astrophysics (ICPPA), pp.012149

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Geant4 quartz fiber simulations as part of luminometer development for CMS / Selivanova, D A (Moscow Phys. Eng. Inst.) ; Popova, E V (Moscow Phys. Eng. Inst.) ; Ilyin, A L (Moscow Phys. Eng. Inst.) ; Aydilek, O (Istanbul U.) ; Ozkorucuklu, S (Istanbul U.) ; Cerci, S (Adiyaman U.) ; Cerci, D Sunar (Adiyaman U.)
Measurements of luminosity are required to be exceedingly accurate for the new upcoming era of the LHC with higher energies and a more complex structure of the beam (HL-LHC). A new device is being developed for the CMS experiment to fulfill demands of being stand-alone and precise. [...]
2020 - 6 p. - Published in : J. Phys. : Conf. Ser. 1690 (2020) 012047
In : 5th International Conference on Particle Physics and Astrophysics (ICPPA), pp.012047

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Development of Si Beam Position Detectors for NA61/SHINE experiment / Makhnev, A (Moscow, INR ; Moscow, MIPT) ; Guber, F (Moscow, INR ; Moscow, MIPT) ; Serebryakov, D (Moscow, INR) ; Pulawski, S (Silesia U.) ; Kowalski, S (Silesia U.)
The NA61/SHINE experiment at the CERN SPS is undergoing a major upgrade during the LHC Long Shutdown 2 period (2019-2021). The upgrade is essential to fulfil the requirements of the new open charm measurement program. [...]
2020 - 4 p. - Published in : J. Phys. : Conf. Ser. 1690 (2020) 012050
In : 5th International Conference on Particle Physics and Astrophysics (ICPPA), pp.012050

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-27
06:01
Search for dark photons as candidates for Dark Matter with FUNK / Andrianavalomahefa, Arnaud (KIT, Karlsruhe) ; Daumiller, Kai (KIT, Karlsruhe) ; Döbrich, Babette (CERN) ; Engel, Ralph (KIT, Karlsruhe) ; Jaeckel, Joeg (U. Heidelberg, ITP) ; Kowalski, Marek (Humboldt U., Berlin ; DESY, Zeuthen) ; Lindner, Axel (DESY, Zeuthen) ; Mathes, Hermann-Josef (KIT, Karlsruhe) ; Redondo, Javier (Zaragoza U.) ; Roth, Markus (KIT, Karlsruhe) et al.
An additional U(1) symmetry predicted in theories beyond the Standard Model of particle physics can give rise to hidden (dark) photons. Depending on the mass and density of these hidden photons, they could account for a large fraction of the Dark Matter observed in the Universe. [...]
2021 - 8 p. - Published in : PoS ICRC2019 (2021) 517 Fulltext: PDF;
In : 36th International Cosmic Ray Conference, Madison, WI, USA, 24 Jul - 1 Aug 2019, pp.517

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2022-01-26
10:46
Simulation and Optimization Studies of the LHCb Beetle Readout ASIC and Machine Learning Approach for Pulse Shape Reconstruction / Kopciewicz, Pawel (AGH University of Science and Technology (PL)) ; Akiba, Kazu (Nikhef National institute for subatomic physics (NL)) ; Szumlak, Tomasz (AGH University of Science and Technology (PL)) ; Sitko, Sebastian Piotr ; Barter, William (Imperial College (GB)) ; Buytaert, Jan (CERN) ; Eklund, Lars (Uppsala University (SE)) ; Hennessy, Karol (University of Liverpool (GB)) ; Koppenburg, Patrick (Nikhef National institute for subatomic physics (NL)) ; Latham, Thomas Edward (University of Warwick (GB)) et al.
The optimization of the Beetle readout ASIC and the performance of the software for the signal processing based on machine learning methods are presented. The Beetle readout chip was developed for the LHCb (Large Hadron Collider beauty) tracking detectors and was used in the VELO (Vertex Locator) during Run 1 and 2 of LHC data taking. [...]
LHCb-PUB-2022-002; CERN-LHCb-PUB-2022-002.- Geneva : CERN, 2021 - 12. - Published in : Sensors 21 (2021) 6075 Fulltext: sensors-21-06075-v2 (2) - PDF; LHCb-PUB-2022-002 - ;

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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