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Published Articles

Πρόσφατες προσθήκες:
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 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 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.387

2021-04-13
06:01
 Coherent Meson Production in the NOMAD Experiment / Kullenberg, Chris (Dubna, JINR) ; Mishra, Sanjib (South Carolina U.) We presented the measurements of coherent $\pi^0$, $\rho^+$ and $\rho^0$ meson production in the NOMAD experiment. The excellent angular and momentum resolutions of the NOMAD detector — based upon a low density design with $\rho \sim 0.1$ g/cm$^3$ — combined with a nuclear target predominantly made of carbon, result in an efficient selection of coherent processes with small background levels. [...] SISSA, 2020 - 7 p. - Published in : PoS EPS-HEP2019 (2020) 380 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.380

2021-04-13
06:01
 Neutrino physics with the SHiP experiment at CERN / Pastore, Alessandra (INFN, Bari) /SHiP Collaboration SHiP ($\textit{Search for Hidden Particles}$) is a general purpose experimental facility recently proposed at CERN. It will be operated in beam dump mode at the CERN SPS accelerator with the aim of searching for long-lived particles of Hidden Sector models in the GeV mass range. [...] SISSA, 2019 - 8 p. - Published in : PoS EPS-HEP2019 (2020) 372 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.372

2021-04-13
06:01
 Search for lepton flavour violating decays of the Higgs boson with CMS / Siddireddy, Prasanna Kumar (U. Notre Dame (main)) Recent results from direct searches for lepton flavour violating decays of the Higgs boson are presented. The searches presented include lepton flavour violating (LFV) decays of Higgs(125) boson along with neutral heavy Higgs LFV decays. [...] SISSA, 2019 - 6 p. - Published in : PoS EPS-HEP2019 (2020) 371 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.371

2021-04-13
06:01
 Measurement of the top-Higgs Yukawa coupling in the $tHq$ process with CMS / Das, Pallabi (Tata Inst.) /CMS Collaboration The current mandate of the LHC experiments is to precisely determine the properties of the Higgs boson, one of the major interests being the top-Yukawa coupling ($y_t$) measurement. The Run 2 data have provided evidence of $\mathrm{t\bar{t}H}$ production at the LHC which is sensitive to $y_t^2$ at the tree level. [...] SISSA, 2019 - 7 p. - Published in : PoS EPS-HEP2019 (2020) 370 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.370

2021-04-13
06:01
 Higgs to tau tau measurements with CMS / Hlushchenko, Olena (Aachen, Tech. Hochsch.) /CMS Collaboration The latest results obtained with CMS data collected at a centre-of-mass energy of 13 TeV targeting Higgs boson decays into tau leptons are shown. The first differential cross section measurement of $H \rightarrow \tau\tau$, as well as the cross-sections measured for individual ZH and WH production mechanisms, are presented. [...] SISSA, 2019 - 6 p. - Published in : PoS EPS-HEP2019 (2020) 369 In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.369

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