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CERN Document Server 找到 29 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.68 秒. 
1.
Search for pair-production of vector-like quarks in $pp$ collision events at $\sqrt{s}=13$ TeV with at least one leptonically decaying $Z$ boson and a third-generation quark with the ATLAS detector / ATLAS Collaboration
A search for the pair-production of vector-like quarks optimized for decays into a $Z$ boson and a third-generation Standard Model quark is presented, using the full Run 2 dataset corresponding to 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV, collected in 2015 - 2018 with the ATLAS detector at the Large Hadron Collider. The targeted final state is characterized by the presence of a $Z$ boson with high transverse momentum, reconstructed from a pair of same-flavour leptons with opposite-sign charges, as well as by the presence of $b$-tagged jets and high-transverse-momentum large-radius jets reconstructed from calibrated smaller-radius jets. [...]
arXiv:2210.15413; CERN-EP-2021-207.- Geneva : CERN, 2023-06-15 - 26 p. Fulltext: PDF; External link: Previous draft version
2.
Measurement of cross-sections for production of a $Z$ boson in association with a flavor-inclusive or doubly $b$-tagged large-radius jet in proton-proton collisions at $\sqrt{s} = 13~$TeV with the ATLAS experiment / ATLAS Collaboration
We present measurements of cross-sections for production of a leptonically decaying $Z$ boson in association with a large-radius jet in 13 TeV proton-proton collisions at the LHC, using $36~\mathrm{fb}^{-1}$ of data from the ATLAS detector. Integrated and differential cross-sections are measured at particle-level in both a flavor-inclusive and a doubly $b$-tagged fiducial phase-space. [...]
arXiv:2204.12355; CERN-EP-2021-140.- 2023-07-31 - 32 p. - Published in : Phys. Rev. D 108 (2023) 012022 Fulltext: 2204.12355 - PDF; Publication - PDF; External link: Previous draft version
3.
Search for the charged-lepton-flavor-violating decay $Z\rightarrow e\mu$ in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for the charged-lepton-flavor-violating process $Z\rightarrow e\mu$ is presented, using 139 fb$^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collision data collected by the ATLAS experiment at the LHC. An excess in the $e\mu$ invariant mass spectrum near the $Z$ boson mass would be a striking signature of new physics. [...]
arXiv:2204.10783; CERN-EP-2022-007.- 2023-08-25 - 22 p. - Published in : Phys. Rev. D 108 (2023) 032015 Fulltext: ANA-EXOT-2018-35-PAPER - PDF; 2204.10783 - PDF; Publication - PDF; External link: Previous draft version
4.
A search for an unexpected asymmetry in the production of $e^+ \mu^-$ and $e^- \mu^+$ pairs in proton-proton collisions recorded by the ATLAS detector at $\sqrt s = 13$ TeV / ATLAS Collaboration
This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for $e^+ \mu^-$ and $e^- \mu^+$ pairs to constrain physics processes beyond the Standard Model. It uses $139 \text{fb}^{-1}$ of proton-proton collision data recorded at $\sqrt{s} = 13$ TeV at the LHC. [...]
arXiv:2112.08090; CERN-EP-2021-190.- Geneva : CERN, 2022-07-10 - 38 p. - Published in : Phys. Lett. B 830 (2022) 137106 Fulltext: 2112.08090 - PDF; Publication - PDF; External link: Previous draft version
5.
Search for associated production of a $Z$ boson with an invisibly decaying Higgs boson or dark matter candidates at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for invisible decays of the Higgs boson as well as searches for dark matter candidates, produced together with a leptonically decaying $Z$ boson, are presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of 13 TeV, delivered by the LHC, corresponding to an integrated luminosity of 139 fb$^{-1}$ and recorded by the ATLAS experiment. [...]
arXiv:2111.08372; CERN-EP-2021-204.- Geneva : CERN, 2022-04-04 - 43 p. - Published in : Phys. Lett. B 829 (2022) 137066 Fulltext: 2111.08372 - PDF; Publication - PDF; External link: Previous draft version
6.
Measurement of Higgs boson decay into $b$-quarks in associated production with a top-quark pair in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
The associated production of a Higgs boson and a top-quark pair is measured in events characterised by the presence of one or two electrons or muons. The Higgs boson decay into a $b$-quark pair is used. [...]
arXiv:2111.06712; CERN-EP-2021-202.- Geneva : CERN, 2022-06-17 - 63 p. - Published in : JHEP 2206 (2022) 097 Fulltext: 2111.06712 - PDF; Publication - PDF; External link: Previous draft version
7.
Operation and performance of the ATLAS semiconductor tracker in LHC Run 2 / ATLAS Collaboration
The semiconductor tracker (SCT) is one of the tracking systems for charged particles in the ATLAS detector. It consists of 4088 silicon strip sensor modules. [...]
arXiv:2109.02591; CERN-EP-2021-178.- Geneva : CERN, 2022-01-10 - 55 p. - Published in : JINST 17 (2022) P01013 Fulltext: Aad_2022_J._Inst._17_P01013 - PDF; document - PDF; 2109.02591 - PDF; External link: Previous draft version
8.
Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector / ATLAS Collaboration
Heavy-flavour hadron production provides information about the transport properties and microscopic structure of the quark- gluon plasma created in ultra-relativistic heavy-ion collisions. A measurement of the muons from semileptonic decays of charm and bottom hadrons produced in Pb+Pb and $pp$ collisions at a nucleon- nucleon centre-of-mass energy of 5.02 TeV with the ATLAS detector at the Large Hadron Collider is presented. [...]
arXiv:2109.00411; CERN-EP-2021-153.- Geneva : CERN, 2022-04-06 - 38 p. - Published in : Phys. Lett. B 829 (2022) 137077 Fulltext: 2109.00411 - PDF; ANA-HION-2019-58-PAPER - PDF; Publication - PDF; External link: Previous draft version
9.
Search for new phenomena in three- or four-lepton events in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search with minimal model dependence for physics beyond the Standard Model in events featuring three or four leptons ($3\ell$ and $4\ell$, $\ell = e,\mu$) is presented. The analysis aims to be sensitive to a wide range of potential new-physics theories simultaneously. [...]
arXiv:2107.00404; CERN-EP-2021-063.- Geneva : CERN, 2022-01-10 - 40 p. - Published in : Phys. Lett. B 824 (2022) 136832 Fulltext: 2107.00404 - PDF; 1-s2.0-S0370269321007723-main - PDF; External link: Previous draft version
10.
Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents / ATLAS Collaboration
Non-ionizing energy loss causes bulk damage to the silicon sensors of the ATLAS pixel and strip detectors. This damage has important implications for data-taking operations, charged-particle track reconstruction, detector simulations, and physics analysis. [...]
arXiv:2106.09287; CERN-EP-2021-055.- Geneva : CERN, 2021 - 47 p. - Published in : JINST 16 (2021) P08025 Fulltext: PDF; Fulltext from publisher: PDF; External link: Previous draft version

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