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2022-01-28
06:02
The new Trigger/GPS module for the extreme energy events project / Abbrescia, M (Enrico Fermi Ctr., Rome ; Bari U. ; INFN, Bari) ; Avanzini, C (Enrico Fermi Ctr., Rome ; INFN, Pisa ; Pisa U.) ; Baek, Y (World Lab., Geneva) ; Ferroli, R Baldini (Enrico Fermi Ctr., Rome ; Frascati) ; Baldini, L (Enrico Fermi Ctr., Rome ; INFN, Pisa ; Pisa U.) ; Batignani, G (Enrico Fermi Ctr., Rome ; INFN, Pisa ; Pisa U.) ; Battaglieri, M (Enrico Fermi Ctr., Rome ; Genoa U. ; INFN, Genoa) ; Boi, S (Enrico Fermi Ctr., Rome ; Cagliari U. ; INFN, Cagliari) ; Bossini, E (Enrico Fermi Ctr., Rome ; INFN, Pisa ; Pisa U.) ; Carnesecchi, F (Enrico Fermi Ctr., Rome ; INFN, Bologna ; U. Bologna, DIFA) et al.
The Extreme Energy Event (EEE) project is an experiment devoted to the study of high energy Extensive Air Showers (EAS) over a very large area, using an array of muon telescopes. At present the array is composed of more than 50 stations, most of them distributed across the Italian territory, on a total area of around $3 \times 105$ km$^2$. [...]
2019 - 7 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 942 (2019) 162358

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2022-01-28
04:13
Entropy production in pp and Pb-Pb collisions at energies available at the CERN Large Hadron Collider / Hanus, Patrick (Heidelberg U.) ; Mazeliauskas, Aleksas (U. Heidelberg, ITP ; CERN) ; Reygers, Klaus (Heidelberg U.)
We use experimentally measured identified particle spectra and Hanbury Brown-Twiss radii to determine the entropy per unit rapidity $dS/dy$ produced in $\sqrt{s} = 7$ TeV pp and $\sqrt{s_{\rm NN}} = 2.76$ TeV Pb-Pb collisions. We find that $dS/dy = 11335 \pm 1188$ in 0-10% Pb-Pb, $dS/dy = 135.7 \pm 17.9$ in high-multiplicity pp, and $dS/dy = 37.8 \pm 3.7$ in minimum bias pp collisions and compare the corresponding entropy per charged particle $(dS/dy)/(dN_{\rm ch}/dy)$ to predictions of statistical models. [...]
arXiv:1908.02792.- 2019-12-05 - 12 p. - Published in : Phys. Rev. C 100 (2019) 064903 Article from SCOAP3: PDF; Fulltext: PDF;

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2022-01-28
04:13
Calibration of Advanced Virgo and reconstruction of detector strain $h(t)$ during the Observing Run O3 / VIRGO Collaboration
The three Advanced Virgo and LIGO gravitational wave detectors participated to the third observing run (O3) between 1 April 2019 15:00 UTC and 27 March 2020 17:00 UTC,leading to several gravitational wave detections per month. This paper describes the Advanced Virgo detector calibration and the reconstruction of the detector strain $h(t)$ during O3, as well as the estimation of the associated uncertainties. [...]
arXiv:2107.03294.- 2022-01-21 - 54 p. - Published in : Class. Quantum Gravity 39 (2022) 045006 Fulltext: PDF;

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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

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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

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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

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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

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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

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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

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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

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