CERN Accelerating science

CERN Document Server 280 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.83 δευτερόλεπτα. 
1.
Search for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for heavy right-handed Majorana neutrinos is performed with the ATLAS detector at the CERN Large Hadron Collider, using the 140 $fb^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV collected during Run 2. This search targets $t\bar{t}$ production, in which both top quarks decay into a bottom quark and a $W$ boson, where one of the $W$ bosons decays hadronically and the other decays into an electron or muon and a heavy neutral lepton. [...]
arXiv:2408.05000; CERN-EP-2024-154.- Geneva : CERN, 2024-12-01 - 33 p. - Published in : Phys. Rev. D 110 (2024) 112004 Fulltext: 2408.05000 - PDF; Publication - PDF; External link: Previous draft version
2.
Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector / ATLAS Collaboration
Many extensions of the Standard Model, including those with dark matter particles, propose new mediator particles that decay into hadrons. This paper presents a search for such low mass narrow resonances decaying into hadrons using 140 fb$^{-1}$ of proton-proton collision data recorded with the ATLAS detector at a centre-of-mass energy of 13 TeV. [...]
arXiv:2408.00049; CERN-EP-2024-188.- Geneva : CERN, 2025-01-21 - 38 p. - Published in : JHEP 2501 (2025) 099 Fulltext: 2408.00049 - PDF; document - PDF; External link: Previous draft version
3.
Accuracy versus precision in boosted top tagging with the ATLAS detector / ATLAS Collaboration
The identification of top quark decays where the top quark has a large momentum transverse to the beam axis, known as \textit{top tagging}, is a crucial component in many measurements of Standard Model processes and searches for beyond the Standard Model physics at the Large Hadron Collider. Machine learning techniques have improved the performance of top tagging algorithms, but the size of the systematic uncertainties for all proposed algorithms has not been systematically studied. [...]
arXiv:2407.20127; CERN-EP-2024-159.- Geneva : CERN, 2024-08-27 - 47 p. - Published in : JINST 19 (2024) P08018 Fulltext: 2407.20127 - PDF; document - PDF; External link: Previous draft version
4.
Jet radius dependence of dijet momentum balance and suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector / ATLAS Collaboration
This paper describes a measurement of the jet radius dependence of the dijet momentum balance between leading back-to-back jets in 1.72 $nb^{-1}$ of Pb+Pb collisions collected in 2018 and 255 pb$^{-1}$ of $pp$ collisions collected in 2017 by the ATLAS detector at the LHC. Both data sets were collected at $ \sqrt{s_{\rm NN}}=$ 5.02 TeV. [...]
arXiv:2407.18796; CERN-EP-2024-196.- Geneva : CERN, 2024-11-25 - 59 p. - Published in : Phys. Rev. C 110 (2024) 054912 Fulltext: PDF; External link: Previous draft version
5.
Differential cross-section measurements of Higgs boson production in the $H\to\tau^+\tau^-$ decay channel in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
Differential measurements of Higgs boson production in the $\tau$-lepton-pair decay channel are presented in the gluon fusion, vector-boson fusion (VBF), $VH$ and $t\bar{t}H$ associated production modes, with particular focus on the VBF production mode. The data used to perform the measurements correspond to 140 fb$^{-1}$ of proton-proton collisions collected by the ATLAS experiment at the LHC. [...]
arXiv:2407.16320; CERN-EP-2024-198.- Geneva : CERN, 2025-03-04 - 64 p. - Published in : JHEP 2503 (2025) 010 preprint: PDF; publication: PDF; External link: Previous draft version
6.
Measurement of single top-quark production in association with a $W$ boson in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
The inclusive cross-section for the production of a single top quark in association with a $W$ boson is measured using 140 fb$^{-1}$ of proton-proton collision data collected with the ATLAS detector at $\sqrt{s} = 13$ TeV. Events containing two charged leptons and at least one jet identified as originating from a $b$-quark are selected. [...]
arXiv:2407.15594; CERN-EP-2024-168.- Geneva : CERN, 2024-10-01 - 45 p. - Published in : Phys. Rev. D 110 (2024) 072010 Fulltext: PDF; External link: Previous draft version
7.
Search for the associated production of charm quarks and a Higgs boson decaying into a photon pair with the ATLAS detector / ATLAS Collaboration
A search for the production of a Higgs boson and one or more charm quarks, in which the Higgs boson decays into a photon pair, is presented. This search uses proton-proton collision data with a centre-of-mass energy of $\sqrt{s}=13$ TeV and an integrated luminosity of 140 fb$^{-1}$ recorded by the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2407.15550; CERN-EP-2024-175.- Geneva : CERN, 2025-02-11 - 34 p. - Published in : JHEP 2502 (2025) 045 Fulltext: 2407.15550 - PDF; document - PDF; External link: Previous draft version
8.
A precise measurement of the jet energy scale derived from single-particle measurements and in situ techniques in proton-proton collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector / ATLAS Collaboration
The jet energy calibration and its uncertainties are derived from measurements of the calorimeter response to single particles in both data and Monte Carlo simulation using proton-proton collisions at $\sqrt{s} = 13$ TeV collected with the ATLAS detector during Run 2 at the Large Hadron Collider. The jet calibration uncertainty for anti-k$_t$ jets with a jet radius parameter of $R = 0.4$ and in the central jet rapidity region is about 2.5% for transverse momenta ($p_T$) of 20 GeV, about 0.5% for $p_T = 300$ GeV and 0.7% for $p_T = 4$ TeV. [...]
arXiv:2407.15627; CERN-EP-2024-195.- Geneva : CERN, 2025-09-01 - 48 p. - Published in : Eur. Phys. J. C 85 (2025) 927 Fulltext: ANA-JETM-2022-06-PAPER - PDF; 2407.15627 - PDF; document - PDF; External link: Previous draft version
9.
Measurement of $ t\overline{t} $ production in association with additional b-jets in the eμ final state in proton–proton collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector / ATLAS Collaboration
This paper presents measurements of top-antitop quark pair ($t\bar{t}$) production in association with additional $b$-jets. The analysis utilises 140 fb$^{-1}$ of proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. [...]
arXiv:2407.13473; CERN-EP-2024-191.- Geneva : CERN, 2025-01-14 - 77 p. - Published in : JHEP 2501 (2025) 068 Fulltext: 2407.13473 - PDF; document - PDF; External link: Previous draft version
10.
Measurement of the Lund jet plane in hadronic decays of top quarks and $W$ bosons with the ATLAS detector / Aad, Georges (Marseille, CPPM) ; Aakvaag, Erlend (Bergen U.) ; Abbott, Braden Keim (Oklahoma U.) ; Abdelhameed, Sara (New York U., Abu Dhabi) ; Abeling, Kira (Gottingen U., II. Phys. Inst.) ; Abicht, Nils Julius (Dortmund U.) ; Abidi, Haider (Brookhaven) ; Aboelela, Mohammed (Southern Methodist U.) ; Aboulhorma, Asmaa (Mohammed V U., Agdal) ; Abramowicz, Halina (Tel Aviv U.) et al.
The Lund jet plane (LJP) is measured for the first time in tt̄ events, using 140 fb$^{-1}$ of $\sqrt{s} = 13$ TeV pp collision data collected with the ATLAS detector at the LHC. The LJP is a two-dimensional observable of the sub-structure of hadronic jets that acts as a proxy for the kinematics of parton showers and hadron formation. [...]
arXiv:2407.10879; CERN-EP-2024-169.- Geneva : CERN, 2025-04-14 - 60 p. - Published in : Eur. Phys. J. C 85 (2025) 416 Fulltext: 2407.10879 - PDF; document - PDF; External link: Previous draft version

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