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# CERN Published Articles

Posledne pridané:
2021-04-16
13:18
 Gating of charge sensitive preamplifiers for the use at pulsed radiation sources. / Urlass, Sebastian (HZDR) ; Junghans, Arnd (HZDR) ; Mingrone, Federica (CERN) ; Peronnard, Paul (CERN) ; Stach, Daniel (HZDR) ; Tassan-Got, Laurent (CNRS/IN2P3 IJCLab) ; Weinberger, David (HZDR) /n_TOF Collaboration The development of a switch circuit to gate charge sensitive preamplifiers for use at pulsed radiation sources will be presented. This development was used for the $^{16}$O(n,$\alpha$)$^{13}$C reaction measurement with a Double Frisch Grid Ionization Chamber (DFGIC) at the neutron time-of-flight facility CERN n_TOF in Geneva, Switzerland. [...] Geneva : CERN, 2021 - 9 p. - Published in : Nucl. Instrum. Methods Phys. Res. A

2021-04-16
06:03
 Higgs to WW measurements with CMS / Di Croce, Davide (Antwerp U.) The measurement of the Higgs boson decay to a W boson pair with an integrated luminosity of 35.9 fb$\rm{^{-1}}$ collected by the CMS experiment at the LHC at 13 TeV center of mass energy is presented. The results led to the observation of the Higgs boson decay to WW with more than 5 standard deviations for the first time at CMS, providing a significant contribution to the current fit of the Higgs boson couplings to fermions and vector bosons.. SISSA, 2020 - 5 p. - Published in : PoS EPS-HEP2019 (2020) 364 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.364

2021-04-16
06:03
 Search for 2HDM neutral Higgs bosons through the process H $\rightarrow$ ZA $\rightarrow \ell^+ \ell^-b\overline{b}$ with the CMS detector / Saggio, Alessia (Louvain U., CP3) /CMS Collaboration The inability of the standard model (SM) to explain some observed phenomena motivates theoretical models featuring an extension of the SM scalar sector that predict additional Higgs bosons. The Two-Higgs-doublet model (2HDM) is one of these. [...] SISSA, 2019 - 6 p. - Published in : PoS EPS-HEP2019 (2020) 361 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.361

2021-04-16
06:03
 Measurement of cross sections in Higgs boson decays to four leptons with the ATLAS detector / Oda, Susumu (Kyushu U.) /ATLAS Collaboration Higgs boson decays to four leptons can be selected with a very high purity and are very well suited for measurements of Higgs boson properties, despite the small branching fraction. Measurements of differential cross sections and cross sections of different Higgs boson production processes in the simplified template cross section framework using proton-proton collision data produced at the Large Hadron Collider at a center of mass energy of $13$ TeV and recorded by the ATLAS detector from 2015 to 2018 are presented.. SISSA, 2019 - 7 p. - Published in : PoS EPS-HEP2019 (2020) 354 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.354

2021-04-16
06:03
 Higgs Boson Measurements at the HL-LHC with CMS / Das, Pallabi (Tata Inst.) /CMS Collaboration The measurements of the properties of the Higgs boson at the LHC experiments have entered the precision era, however, some channels are still dominated by statistical uncertainties. A larger data sample is required to ensure whether the observed resonance completely agrees with the Standard Model (SM) predictions, or belongs to a new physics scenario. [...] SISSA, 2019 - 9 p. - Published in : PoS EPS-HEP2019 (2020) 348 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.348

2021-04-13
06:01
 Implementation of the ATLAS-SUSY-2018-32 analysis (sleptons and electroweakinos with two leptons and missing transverse energy; 139 fb$^{−1}$) / Araz, Jack Y (Durham U., IPPP) ; Fuks, Benjamin (Paris, LPTHE ; Inst. U. de France) We present the implementation in MadAnalysis 5 of the ATLAS-SUSY-2018-32 search for new physics and document the validation of this re-implementation. This analysis targets, with 139 fb−1 of proton–proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector, the electroweak pair production of supersymmetric charginos and sleptons when they further decay into a final state comprising a pair of leptons and missing energy. [...] 2020 - 12 p. - Published in : Mod. Phys. Lett. A 36 (2021) 2141005 In : 2nd MadAnalysis 5 workshop on LHC recasting in Korea, Seoul, Korea, Republic of, 13 - 20 Feb 2020, pp.2141005

2021-04-13
06:01
 Implementation of the ATLAS-SUSY-2018-31 analysis in the MadAnalysis 5 framework (sbottoms with multi-bottoms and missing transverse energy; 139 fb$^{−1}$) / Araz, Jack Y (Durham U., IPPP) ; Fuks, Benjamin (Paris, LPTHE ; Inst. U. de France) We present the implementation, in the MadAnalysis 5 framework, of the ATLAS-SUSY-2018-31 search for new physics, and document the validation of this implementation. This analysis targets, with 139 fb−1 of proton–proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector between 2015 and 2018, the production of a pair of supersymmetric bottom squarks when they further decay through a cascade decay involving the second lightest neutralino and a Standard Model Higgs boson. [...] 2020 - 12 p. - Published in : Mod. Phys. Lett. A 36 (2021) 2141010 In : 2nd MadAnalysis 5 workshop on LHC recasting in Korea, Seoul, Korea, Republic of, 13 - 20 Feb 2020, pp.2141010

2021-04-13
06:01
 Outreach activities at LHCb / Santimaria, Marco (Frascati) The LHCb collaboration has a wide outreach programme covering physics news, detector photos and videos, masterclasses and exhibitions at the CERN site. The presence on social media, and on web in general, is the first line in making the public aware of the experiment activities. [...] SISSA, 2019 - 6 p. - Published in : PoS EPS-HEP2019 (2020) 453 Fulltext: PDF; In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.453

2021-04-13
06:01
 Soft $b$-hadron tagging with the ATLAS detector / Yamazaki, Tomohiro (Tokyo U.) /ATLAS Collaboration The identification of $b$-hadrons at low $p_{\text{T}}$ can play a crucial role in a variety of analyses where soft $b$-hadrons are produced by physics beyond the Standard Model such as stop/sbottom production in compressed SUSY senarios, and also in analyses that require heavy flavour jet vetos.Such $b$-hadron identification is a particularly challenging task, owing to the relatively short decay length of such $b$-hadrons and difficulties identifying hadronic jets, and current flavour tagging algorithms are not tuned to identify such $b$-hadron decays.This article presents new developments for soft $b$-hadron tagging techniques based either on the presence of jets composed only of charged tracks, or on the identification of secondary vertices from the $b$-hadron decay without requiring the presence of a jet. The techniques are described and their performance is reviewed.. SISSA, 2019 - 6 p. - Published in : PoS EPS-HEP2019 (2020) 208 Fulltext from publisher: PDF; In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.208

2021-04-13
06:01
 The ENUBET Project. A high precision narrow-band neutrino beam / Brunetti, G (INFN, Padua) ; Acerbi, F (Fond. Bruno Kessler, Trento ; TIFPA-INFN, Trento) ; Ballerini, G (Insubria U., Como ; INFN, Milan Bicocca) ; Bonesini, M (INFN, Milan Bicocca) ; Branca, A (INFN, Padua ; Padua U.) ; Brizzolari, C (INFN, Milan Bicocca ; Milan Bicocca U.) ; Capelli, S (Insubria U., Como ; INFN, Milan Bicocca) ; Carturan, S (INFN, Legnaro) ; Catanesi, M G (INFN, Bari) ; Cecchini, S (INFN, Bologna) et al. The knowledge of initial flux, energy and flavor of neutrino beams is currently the main limitation for a precise measurement of neutrino cross sections. The ENUBET project is studying a facility based on a narrow band neutrino beam capable of constraining the neutrino fluxes normalization through the monitoring of the associated charged leptons in an instrumented decay tunnel. [...] SISSA, 2019 - 7 p. - Published in : PoS EPS-HEP2019 (2020) 387 Fulltext from publisher: PDF; In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.387