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CERN Document Server Encontrados 267 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.73 segundos. 
1.
Measurements of jet cross-section ratios in 13 TeV proton-proton collisions with ATLAS / ATLAS Collaboration
Measurements of jet cross-section ratios between inclusive bins of jet multiplicity are performed in 140 fb$^{-1}$ of proton-proton collisions with $\sqrt{s}=13$ TeV center-of-mass energy, recorded with the ATLAS detector at CERN's Large Hadron Collider. Observables that are sensitive the energy-scale and angular distribution of radiation due to the strong interaction in the final state are measured double-differentially, in bins of jet multiplicity, and are unfolded to account for acceptance and detector-related effects. [...]
arXiv:2405.20206; CERN-EP-2024-119.- Geneva : CERN, 2024-10-01 - 41 p. - Published in : Phys. Rev. D 110 (2024) 072019 Fulltext: 2405.20206 - PDF; Publication - PDF; External link: Previous draft version
2.
Beam-induced backgrounds measured in the ATLAS detector during local gas injection into the LHC beam vacuum / ATLAS Collaboration
Inelastic beam-gas collisions at the Large Hadron Collider (LHC), within a few hundred metres of the ATLAS experiment, are known to give the dominant contribution to beam backgrounds. These are monitored by ATLAS with a dedicated Beam Conditions Monitor (BCM) and with the rate of fake jets in the calorimeters. [...]
arXiv:2405.05054; CERN-EP-2024-113.- Geneva : CERN, 2024-06-11 - 61 p. - Published in : JINST 19 (2024) 0614 Fulltext: 2405.05054 - PDF; document - PDF; External link: Previous draft version
3.
Measurements of electroweak $W^{\pm}Z$ boson pair production in association with two jets in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
Measurements of integrated and differential cross-sections for electroweak $W^{\pm}Z$ production in association with two jets ($W^{\pm}Zjj$) in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from $2015$ to $2018$ at a centre-of-mass energy of $\sqrt{s} = 13$ TeV are used, corresponding to an integrated luminosity of $140$ fb$^{-1}$. [...]
arXiv:2403.15296; CERN-EP-2024-082.- Geneva : CERN, 2024-06-27 - 55 p. - Published in : JHEP 2406 (2024) 192 Fulltext: 2403.15296 - PDF; Publication - PDF; External link: Previous draft version
4.
Measurement of the W-boson mass and width with the ATLAS detector using proton–proton collisions at $\sqrt{s}=7$ TeV / ATLAS Collaboration
Proton-proton data recorded by the ATLAS detector in 2011, at a centre-of-mass energy of 7 TeV, have been used for an improved determination of the W-boson mass and a first measurement of the W-boson width at the LHC. Recent fits to the proton parton distribution functions are incorporated in the measurement procedure and an improved statistical method is used to increase the measurement precision. [...]
arXiv:2403.15085; CERN-EP-2024-074.- Geneva : CERN, 2024-12-21 - 51 p. - Published in : Eur. Phys. J. C 84 (2024) 1309 Fulltext: 2403.15085 - PDF; document - PDF; External link: Previous draft version
5.
Measurement of vector boson production cross sections and their ratios using pp collisions at $\sqrt{s}=13.6$ TeV with the ATLAS detector / ATLAS Collaboration
Fiducial and total $W^\pm$ and $Z$ boson cross sections, their ratios and the ratio of top-antitop-quark pair and $W$-boson fiducial cross sections are measured in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=13.6$ TeV, corresponding to an integrated luminosity of 29 fb$^{-1}$ of data collected in 2022 by the ATLAS experiment at the Large Hadron Collider. The measured fiducial cross-section values for $W^+\to \ell^+\nu$, $W^-\to \ell^-\bar{\nu}$, and $Z\to \ell^+\ell^-$ ($\ell=e$ or $\mu$) boson productions are $4250\pm 150$ pb, $3310\pm 120$ pb, and $744\pm 20$ pb, respectively, where the uncertainty is the total uncertainty, including that arising from the luminosity of about 2.2%. [...]
arXiv:2403.12902; CERN-EP-2024-069.- Geneva : CERN, 2024-05-17 - 27 p. - Published in : Phys. Lett. B 854 (2024) 138725 Fulltext: 2403.12902 - PDF; Publication - PDF; External link: Previous draft version
6.
Search for charged-lepton-flavour violating $\mu\tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector at the LHC / ATLAS Collaboration
A search for charged-lepton-flavour violating $\mu\tau qt$ ($q=u,c$) interactions is presented, considering both top-quark production and decay. The data analysed correspond to 140 $\textrm{fb}^{-1}$ of proton-proton collisions at a centre-of-mass energy of $\sqrt{s}= $13 TeV recorded with the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2403.06742; CERN-EP-2024-061.- Geneva : CERN, 2024-07-01 - 35 p. - Published in : Phys. Rev. D 110 (2024) 012014 Fulltext: 2403.06742 - PDF; Publication - PDF; External link: Previous draft version
7.
Measurement of t-channel production of single top quarks and antiquarks in pp collisions at 13 TeV using the full ATLAS Run 2 data sample / ATLAS Collaboration
The production of single top quarks and top antiquarks via the $t$-channel exchange of a virtual $W$ boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the LHC using $140\,\mathrm{fb^{-1}}$ of ATLAS data. The total cross-sections are determined to be $\sigma(tq)=137^{+8}_{-8}\,\mathrm{pb}$ and $\sigma(\bar{t}q)=84^{+6}_{-5}\,\mathrm{pb}$ for top-quark and top-antiquark production, respectively. [...]
arXiv:2403.02126; CERN-EP-2023-289.- Geneva : CERN, 2024-05-28 - 61 p. Fulltext: 2403.02126 - PDF; document - PDF; External link: Previous draft version
8.
Searches for exclusive Higgs boson decays into $D^*\gamma$ and $Z$ boson decays into $D^0\gamma$ and $K^0_s\gamma$ in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
Searches for the exclusive decays of the Higgs boson into $D^*\gamma$ and of the $Z$ boson into $D^0\gamma$ and $K^0_s\gamma$ can probe flavour-violating Higgs and $Z$ boson couplings to light quarks. Searches for these decays are performed with a $pp$ collision data sample corresponding to an integrated luminosity of $136.3$ fb$^{-1}$ collected at $\sqrt{s}=13$ TeV between 2016-2018 with the ATLAS detector at the CERN Large Hadron Collider. [...]
arXiv:2402.18731; CERN-EP-2024-037.- Geneva : CERN, 2024-06-03 - 25 p. - Published in : Phys. Lett. B 855 (2024) 138762 Fulltext: 2402.18731 - PDF; Publication - PDF; External link: Previous draft version
9.
Search for new particles in final states with a boosted top quark and missing transverse momentum in proton-proton collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for events with one top quark and missing transverse momentum in the final state is presented. The fully hadronic decay of the top quark is explored by selecting events with a reconstructed boosted top-quark topology produced in association with large missing transverse momentum. [...]
arXiv:2402.16561; CERN-EP-2024-046.- Geneva : CERN, 2024-05-23 - 55 p. - Published in : JHEP 2405 (2024) 263 Fulltext: ANA-EXOT-2022-40-PAPER - PDF; 2402.16561 - PDF; document - PDF; External link: Previous draft version
10.
A search for top-squark pair production, in final states containing a top quark, a charm quark and missing transverse momentum, using the 139 fb$^{−1}$ of pp collision data collected by the ATLAS detector / ATLAS Collaboration
This paper presents a search for top-squark pair production in final states with a top quark, a charm quark and missing transverse momentum. The data were collected with the ATLAS detector during LHC Run 2 and corresponds to an integrated luminosity of 139fb$^{-1}$ of proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV. [...]
arXiv:2402.12137; CERN-EP-2023-262.- Geneva : CERN, 2024-07-26 - 48 p. - Published in : JHEP 2407 (2024) 250 Fulltext: 2402.12137 - PDF; document - PDF; External link: Previous draft version

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