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CERN Document Server 找到 2,050 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.40 秒. 
1.
(100)
Heavy-to-light form factors to three loops / Fael, Matteo (CERN) ; Huber, Tobias (Siegen U.) ; Lange, Fabian (Zurich U. ; PSI, Villigen) ; Müller, Jakob (Siegen U.) ; Schönwald, Kay (Zurich U.) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP)
We compute three-loop corrections of $\mathcal{O}(\alpha_{s}^3)$ to form factors with one massive and one massless quark coupling to an external vector, axialvector, scalar, pseudoscalar, or tensor current. We obtain analytic results for the color-planar contributions, for the contributions of light-quark loops, and the contributions with two heavy-quark loops. [...]
arXiv:2406.08182; CERN-TH-2024-064; P3H-24-036; PSI-PR-24-13; SI-HEP-2024-14; TTP24-017; SI-HEP-2024-14, TTP24-017; ZU-TH28/24.- 2024-09-01 - 51 p. - Published in : Phys. Rev. D 110 (2024) 056011 Fulltext: PDF;
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2.
(91)
Measurement of $t$-channel single-top-quark production in $pp$ collisions at $\sqrt{s} = 5.02$ TeV with the ATLAS detector / ATLAS Collaboration
The observation of the electroweak production of single-top-quarks is made using 255 $\text{pb}^{-1}$ of proton-proton collision data recorded at $\sqrt{s} = 5.02$ TeV with the ATLAS detector at the Large Hadron Collider. An event selection is used to identify single-top-quark candidates arising from $t$-channel production with the top quark decaying semi-leptonically. [...]
arXiv:2310.01518; CERN-EP-2023-183.- Geneva : CERN, 2024-05-16 - 22 p. - Published in : Phys. Lett. B 854 (2024) 138726 Fulltext: 2310.01518 - PDF; Publication - PDF; External link: Previous draft version
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3.
(90)
Measurement of the $t\bar{t}$ cross section and its ratio to the $Z$ production cross section using $pp$ collisions at $\sqrt{s} = 13.6$ TeV with the ATLAS detector / ATLAS Collaboration
The inclusive top-quark-pair production cross section $\sigma_{t\bar{t}}$ and its ratio to the $Z$-boson production cross section have been measured in proton-proton collisions at $\sqrt{s} = 13.6$ TeV, using 29 fb${}^{-1}$ of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and $b$-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be $\sigma_{t\bar{t}} = 850 \pm 3\mathrm{(stat.)}\pm 18\mathrm{(syst.)}\pm 20\mathrm{(lumi.)}$ pb. [...]
arXiv:2308.09529; CERN-EP-2023-166.- Geneva : CERN, 2023-12-07 - 41 p. - Published in : Phys. Lett. B 848 (2024) 138376 Fulltext: 2308.09529 - PDF; Publication - PDF; External link: Previous draft version
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4.
(89)
Measurement of the polarisation of $W$ bosons produced in top-quark decays using dilepton events at $\sqrt{s} = 13$ TeV with the ATLAS experiment / ATLAS Collaboration
A measurement of the polarisation of $W$ bosons produced in top-quark decays is presented, using proton-proton collision data at a centre-of-mass energy of $\sqrt{s} = 13$ TeV. The data were collected by the ATLAS detector at the Large Hadron Collider and correspond to an integrated luminosity of 139 fb$^{-1}$. [...]
arXiv:2209.14903; CERN-EP-2022-197.- Geneva : CERN, 2023-06-05 - 41 p. - Published in : Phys. Lett. B 843 (2023) 137829 Fulltext: PDF; External link: Previous draft version
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5.
(89)
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
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6.
(89)
Search for flavour-changing neutral-current couplings between the top quark and the photon with the ATLAS detector at <math altimg="si1.svg"><msqrt><mrow><mi>s</mi></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>13</mn></math> TeV / ATLAS Collaboration
This letter documents a search for flavour-changing neutral currents (FCNCs), which are strongly suppressed in the Standard Model, in events with a photon and a top quark with the ATLAS detector. The analysis uses data collected in $pp$ collisions at $\sqrt{s} = 13$ TeV during Run 2 of the LHC, corresponding to an integrated luminosity of 139 fb$^{-1}$. [...]
arXiv:2205.02537; CERN-EP-2022-042.- Geneva : CERN, 2022-08-18 - 46 p. Fulltext: 2205.02537 - PDF; Publication - PDF; External link: Previous draft version
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7.
(89)
Measurement of top-quark pair production in association with charm quarks in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
Inclusive cross-sections for top-quark pair production in association with charm quarks are measured with proton-proton collision data at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 140 fb$^{-1}$, collected with the ATLAS experiment at the LHC between 2015 and 2018. The measurements are performed by requiring one or two charged leptons (electrons and muons), two $b$-tagged jets, and at least one additional jet in the final state. [...]
arXiv:2409.11305; CERN-EP-2024-242.- Geneva : CERN, 2024-12-04 - 28 p. - Published in : Phys. Lett. B 860 (2025) 139177 Fulltext: ANA-TOPQ-2021-26-PAPER - PDF; 2409.11305 - PDF; Publication - PDF; External link: Previous draft version
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8.
(89)
Constraining the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using $pp$ collisions at $\sqrt{s}=13$ TeV / ATLAS Collaboration
Constraints on the Higgs boson self-coupling are set by combining double-Higgs boson analyses in the $b\bar{b}b\bar{b}$, $b\bar{b}\tau^+\tau^-$ and $b\bar{b} \gamma \gamma$ decay channels with single-Higgs boson analyses targeting the $\gamma \gamma$, $ZZ^*$, $WW^*$, $\tau^+ \tau^-$ and $b\bar{b}$ decay channels. The data used in these analyses were recorded by the ATLAS detector at the LHC in proton-proton collisions at $\sqrt{s}=13$ TeV and correspond to an integrated luminosity of 126-139 fb$^{-1}$. [...]
arXiv:2211.01216; CERN-EP-2022-149.- Geneva : CERN, 2023-06-07 - 20 p. - Published in : Phys. Lett. B 843 (2023) 137745 Fulltext: 2211.01216 - PDF; Publication - PDF; External link: Previous draft version
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9.
(89)
Observation of $W\gamma\gamma$ triboson production in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
This letter reports the observation of $W(\ell\nu)\gamma\gamma$ production in proton-proton collisions. This measurement uses the full Run 2 sample of events recorded at a center of mass energy of $\sqrt{s} = 13$ TeV by the ATLAS detector at the LHC, corresponding to an integrated luminosity of 140 fb$^{-1}$. [...]
arXiv:2308.03041; CERN-EP-2023-037.- Geneva : CERN, 2023-12-14 - 24 p. - Published in : Phys. Lett. B 848 (2024) 138400 Fulltext: 2308.03041 - PDF; Publication - PDF; External link: Previous draft version
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10.
(88)
Search for exclusive Higgs and $Z$ boson decays to $\omega\gamma$ and Higgs boson decays to $K^{*}\gamma$ with the ATLAS detector / ATLAS Collaboration
Searches for the exclusive decays of the Higgs boson to an $\omega$ meson and a photon or a $K^{*}$ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. Searches for these decays, along with the analogous $Z$ boson decay to an $\omega$ meson and a photon, are performed with a $pp$ collision data sample corresponding to integrated luminosities of up to 134 fb$^{-1}$ collected at $\sqrt{s}=13$ TeV with the ATLAS detector at the CERN Large Hadron Collider. [...]
arXiv:2301.09938; CERN-EP-2022-288.- Geneva : CERN, 2023-10-31 - 23 p. - Published in : Phys. Lett. B 847 (2023) 138292 Fulltext: 2301.09938 - PDF; Publication - PDF; External link: Previous draft version
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