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CERN Document Server 找到 713 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.54 秒. 
1.
Searches for rare and Beyond the Standard Model processes in top quark production and decays with the CMS experiement / Bessidskaia Bylund, Olga (Rochester U.) /CMS Collaboration
With millions of top quarks produced at the LHC, it is an ideal sector for searching for rare top-quark decays. Besides flavor-changing neutral currents that are highly suppressed in the Standard Model, baryon and lepton number conservation can be probed in top quark events. In this conference proceeding, recent searches by the CMS experiment for rare and beyond the Standard Model top-quark production and decay with significantly increased sensitivity are discussed. [...]
CMS-CR-2024-285.- Geneva : CERN, 2024 - 8 p. Fulltext: PDF;
In : 31st International Workshop on Deep Inelastic Scattering, Grenoble, France, 8 - 12 Apr 2024
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2.
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. - Published in : JHEP 2405 (2024) 305 Fulltext: 2403.02126 - PDF; document - PDF; External link: Previous draft version
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3.
Search for high-mass resonances in final states with a $\tau$-lepton and missing transverse momentum with the ATLAS detector / ATLAS Collaboration
A search for high-mass resonances decaying into a tau-lepton and a neutrino using proton–proton collisions at a center-of-mass energy of $\sqrt{s}= 13$ TeV is presented. The full Run 2 data sample corresponding to an integrated luminosity of 139 fb$^{-1}$ recorded by the ATLAS experiment in the years 2015-2018 is analyzed. [...]
arXiv:2402.16576; CERN-EP-2023-298.- Geneva : CERN, 2024-06-01 - 28 p. - Published in : Phys. Rev. D 109 (2024) 112008 Fulltext: 2402.16576 - PDF; Publication - PDF; External link: Previous draft version
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4.
Search for quantum black hole production in lepton+jet final states using proton--proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for quantum black holes in electron+jet and muon+jet invariant mass spectra is performed with 140 $fb^{-1}$ of data collected by the ATLAS detector in proton--proton collisions at $\sqrt{s}$ = 13 TeV at the Large Hadron Collider. The observed invariant mass spectrum of lepton+jet pairs is consistent with Standard Model expectations. [...]
arXiv:2307.14967; CERN-EP-2023-117.- Geneva : CERN, 2024-02-01 - 28 p. - Published in : 10.1103/PhysRevD.109.032010 Fulltext: EXOT-2018-14-002 - PDF; 2307.14967 - PDF; External link: Previous draft version
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5.
Search for single vector-like $B$ quark production and decay via $B\rightarrow bH(b\bar{b})$ in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search is presented for single production of a vector-like $B$ quark decaying into a Standard Model $b$-quark and a Standard Model Higgs boson, which decays into a $b\bar{b}$ pair. The search is carried out in 139 fb$^{-1}$ of $\sqrt{s} = 13$ TeV proton-proton collision data collected by the ATLAS detector at the LHC between 2015 and 2018. [...]
arXiv:2308.02595; CERN-EP-2023-091.- 2023-11-23 - 52 p. - Published in : JHEP 2023 (2020) 168 Fulltext: EXOT-2019-04-002 - PDF; 2308.02595 - PDF; ANA-EXOT-2019-04-PAPER - PDF; Publication - PDF; External link: Previous draft version
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6.
Search for high-mass $W\gamma$ and $Z\gamma$ resonances using hadronic W/Z boson decays from 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for high-mass charged and neutral bosons decaying to $W\gamma$ and $Z\gamma$ final states is presented in this paper. The analysis uses a data sample of $\sqrt{s} = 13$ TeV proton-proton collisions with an integrated luminosity of 139 fb$^{-1}$ collected by the ATLAS detector during LHC Run 2 operation. [...]
arXiv:2304.11962; CERN-EP-2022-241.- Geneva : CERN, 2023-07-14 - 43 p. - Published in : JHEP 2307 (2023) 125 Fulltext: 2304.11962 - PDF; document - PDF; External link: Previous draft version
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7.
Probing the $CP$ nature of the top-Higgs Yukawa coupling in $t\bar{t}H$ and $tH$ events with $H \to b\bar{b}$ decays using the ATLAS detector at the LHC / ATLAS Collaboration
The $CP$ properties of the coupling between the Higgs boson and the top quark are investigated with 139 fb$^{-1}$ of proton-proton collision data recorded by the ATLAS experiment at the LHC at a centre-of-mass energy of $\sqrt{s}=13$ TeV. The $CP$ structure of the top quark-Higgs boson Yukawa coupling is probed in events with a Higgs boson decaying into a pair of $b$-quarks and produced in association with either a pair of top quarks, $t\bar{t}H$, or a single top quark, $tH$. [...]
arXiv:2303.05974; CERN-EP-2022-208.- Geneva : CERN, 2024-01-18 - 41 p. - Published in : Phys. Lett. B 849 (2024) 138469 Fulltext: PDF; External link: Previous draft version
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8.
Search for a light charged Higgs boson in $t \rightarrow H^{\pm}b$ decays, with $H^{\pm} \rightarrow cb$, in the lepton+jets final state in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for a charged Higgs boson, $H^{\pm}$, produced in top-quark decays, $t \rightarrow H^{\pm}b$, is presented. The search targets $H^{\pm}$ decays into a bottom and a charm quark, $H^{\pm} \rightarrow cb$. [...]
arXiv:2302.11739; CERN-EP-2022-207.- Geneva : CERN, 2023-09-01 - 51 p. - Published in : JHEP 2309 (2023) 004 Fulltext: 2302.11739 - PDF; document - PDF; External link: Previous draft version
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9.
Observation of Single-Top-Quark Production in Association with a Photon Using the ATLAS Detector / ATLAS Collaboration
This Letter reports the observation of single top quarks produced together with a photon using 139 fb$^{-1}$ of 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. The analysis uses the presence of a forward jet, characteristic of $t$-channel production, and separates the signal from the background with neural networks. [...]
arXiv:2302.01283; CERN-EP-2022-229.- Geneva : CERN, 2023-10-30 - 22 p. - Published in : Phys. Rev. Lett. 131 (2023) 181901 Fulltext: 2302.01283 - PDF; Publication - PDF; External link: Previous draft version
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10.
Search for flavor-changing neutral-current couplings between the top quark and the $Z$ boson with LHC Run 2 proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for flavor-changing neutral-current couplings between a top quark, an up or charm quark and a $Z$ boson is presented, using proton-proton collision data at $\sqrt{s} = 13$ TeV collected by the ATLAS detector at the Large Hadron Collider. The analyzed dataset corresponds to an integrated luminosity of 139 fb$^{-1}$. [...]
arXiv:2301.11605; CERN-EP-2022-044.- Geneva : CERN, 2023-08-01 - 34 p. - Published in : Phys. Rev. D 108 (2023) 032019 Fulltext: 2301.11605 - PDF; Publication - PDF; External link: Previous draft version
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