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1.
Search for light long-lived neutral particles produced in pppp collisions at s= 13 TeV and decaying into collimated leptons or light hadrons with the ATLAS detector / ATLAS Collaboration
Several models of physics beyond the Standard Model predict the existence of dark photons, light neutral particles decaying into collimated leptons or light hadrons. This paper presents a search for long-lived dark photons produced from the decay of a Higgs boson or a heavy scalar boson and decaying into displaced collimated Standard Model fermions. [...]
arXiv:1909.01246; CERN-EP-2019-140.- Geneva : CERN, 2020-05-20 - 29 p. - Published in : Eur. Phys. J. C Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; External link: Previous draft version
2.
Report from Working Group 2 : Higgs Physics at the HL-LHC and HE-LHC / Cepeda, M. (CERN ; Madrid, CIEMAT) ; Gori, S. (UC, Santa Cruz, Inst. Part. Phys.) ; Ilten, P. (Birmingham U.) ; Kado, M. (Orsay, LAL ; INFN, Rome ; Rome U.) ; Riva, F. (Geneva U., Dept. Theor. Phys.) ; Abdul Khalek, R. (Vrije U., Amsterdam ; Nikhef, Amsterdam) ; Aboubrahim, A. (Northeastern U. (main)) ; Alimena, J. (Ohio State U., Columbus (main)) ; Alioli, S. (Milan Bicocca U.) ; Alves, A. (U. Sao Paulo (main)) et al.
The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a landscape of possibilities in the study of Higgs boson properties, Electroweak Symmetry breaking and the Standard Model in general, as well as new avenues in probing new physics beyond the Standard Model. [...]
arXiv:1902.00134; CERN-LPCC-2018-04.- Geneva : CERN, 2019-12-02 - 364 p. - Published in : CERN Yellow Rep. Monogr. 7 (2019) 221-584 Fulltext: PDF; Preprint: PDF; final document: PDF; External link: Published fulltext
In : HL/HE-LHC Workshop : Workshop on the Physics of HL-LHC, and Perspectives at HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018
Report on the Physics at the HL-LHC, and Perspectives for the HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018, pp.221-584
3.
Exclusive dimuon production in ultraperipheral Pb+Pb collisions at sNN=5.02 TeV with ATLAS / ATLAS Collaboration
Exclusive dimuon production in ultraperipheral collisions (UPC), resulting from photon-photon interactions in the strong electromagnetic fields of colliding high-energy lead nuclei, PbPb(γγ)μμ(Pb()Pb()), is studied using Lint=0.48 nb1 of sNN=5.02 TeV lead-lead collision data at the LHC with the ATLAS detector. Dimuon pairs are measured in the fiducial region pTμ>4 GeV, ημ<2.4, invariant mass mμμ>10 GeV, and pTμμ<2 GeV. [...]
arXiv:2011.12211; CERN-EP-2020-138.- Geneva : CERN, 2021-08-19 - 50 p. - Published in : Phys. Rev. C 104 (2021) 024906 Fulltext: PDF; Fulltext from publisher: PDF; External link: Previous draft version
4.
Search for trilepton resonances from chargino and neutralino pair production in s=13 TeV pp collisions with the ATLAS detector / ATLAS Collaboration
A search is performed for the electroweak pair production of charginos and associated production of a chargino and neutralino, each of which decays through an R-parity-violating coupling into a lepton and a W,Z, or Higgs boson. The trilepton invariant-mass spectrum is constructed from events with three or more leptons, targeting chargino decays that include an electron or muon and a leptonically decaying Z boson. [...]
arXiv:2011.10543; CERN-EP-2020-201.- Geneva : CERN, 2021-06-07 - 51 p. - Published in : Phys. Rev. D 103 (2021) 112003 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
5.
Search for resonances decaying into photon pairs in 139 fb1 of pp collisions at s= 13 TeV with the ATLAS detector / ATLAS Collaboration
Searches for new resonances in the diphoton final state, with spin 0 as predicted by theories with an extended Higgs sector and with spin 2 using a warped extra-dimension benchmark model, are presented using 139 fb1 of s= 13 TeV pp collision data collected by the ATLAS experiment at the LHC. No significant deviation from the Standard Model is observed and upper limits are placed on the production cross-section times branching ratio to two photons as a function of the resonance mass..
arXiv:2102.13405; CERN-EP-2020-248.- Geneva : CERN, 2021-11-10 - 33 p. - Published in : Phys. Lett. B 822 (2021) 136651 Fulltext: PDF; Fulltext from publisher: PDF; External link: Previous draft version
6.
The ATLAS Fast TracKer system / ATLAS Collaboration
The ATLAS Fast TracKer (FTK) was designed to provide full tracking for the ATLAS high-level trigger by using pattern recognition based on Associative Memory (AM) chips and fitting in high-speed field programmable gate arrays. The tracks found by the FTK are based on inputs from all modules of the pixel and silicon microstrip trackers. [...]
arXiv:2101.05078; CERN-EP-2020-232.- Geneva : CERN, 2021 - 64 p. - Published in : JINST 16 (2021) P07006 Fulltext: PDF; Fulltext from publisher: PDF; External link: Previous draft version
7.
Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs at s=13TeV with the ATLAS detector / ATLAS Collaboration
A search is presented for the production of the Standard Model Higgs boson in association with a high-energy photon. With a focus on the vector-boson fusion process and the dominant Higgs boson decay into b-quark pairs, the search benefits from a large reduction of multijet background compared to more inclusive searches. [...]
arXiv:2010.13651; CERN-EP-2020-179.- Geneva : CERN, 2021-03-29 - 37 p. - Published in : JHEP 2103 (2021) 268 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
8.
Measurement of the CP-violating phase ϕs in B0sJ/ψϕ decays in ATLAS at 13 TeV / ATLAS Collaboration
A measurement of the B0sJ/ψϕ decay parameters using 80.5 fb1 of integrated luminosity collected with the ATLAS detector from 13 TeV proton-proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the width difference ΔΓs between the B0s meson mass eigenstates and the average decay width Γs. [...]
arXiv:2001.07115; CERN-EP-2019-218.- Geneva : CERN, 2021-04-21 - 36 p. - Published in : Eur. Phys. J. C 81 (2021) 342 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; External link: Previous draft version
9.
Search for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at s=13 TeV with the ATLAS detector / ATLAS Collaboration
Results of a search for new physics in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 139 fb1 at a center-of-mass energy of 13 TeV collected in the period 2015-2018 with the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2102.10874; CERN-EP-2020-238.- Geneva : CERN, 2021-06-10 - 40 p. - Published in : Phys. Rev. D 103 (2021) 112006 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
10.
Search for Higgs boson decays into a Z boson and a light hadronically decaying resonance using 13 TeV pp collision data from the ATLAS detector / ATLAS Collaboration
A search for Higgs boson decays into a Z boson and a light resonance in two-lepton plus jet events is performed, using a pp collision dataset with an integrated luminosity of 139 fb1 collected at s=13 TeV by the ATLAS experiment at the CERN LHC. The resonance considered is a light boson with a mass below 4 GeV from a possible extended scalar sector, or a charmonium state. [...]
arXiv:2004.01678; CERN-EP-2020-033.- Geneva : CERN, 2020-11-25 - 32 p. - Published in : Phys. Rev. Lett. 125 (2020) 221802 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version

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