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CERN Document Server 12 records found  1 - 10next  jump to record: Search took 0.59 seconds. 
1.
Search for new phenomena in two-body invariant mass distributions using unsupervised machine learning for anomaly detection at $\sqrt{s}$ = 13 TeV with the ATLAS detector / Cheng, Chi Lung (Wisconsin U., Madison) /ATLAS Collaboration
Searches for new resonances in two-body invariant masses are performed using an unsupervised anomaly detection technique in events produced in collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the LHC. An autoencoder network is trained with 1% randomly selected collision events. [...]
2024 - 6 p. - Published in : PoS EPS-HEP2023 (2024) 481 Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.481
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2.
Luminosity determination in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector at the LHC / ATLAS Collaboration
The luminosity determination for the ATLAS detector at the LHC during Run 2 is presented, with $pp$ collisions at $\sqrt{s}=13$ TeV. The absolute luminosity scale is determined using van der Meer beam separation scans during dedicated running periods in each year, and extrapolated to the physics data-taking regime using complementary measurements from several luminosity-sensitive detectors. [...]
arXiv:2212.09379; CERN-EP-2022-281.- Geneva : CERN, 2023-10-31 - 67 p. - Published in : Eur. Phys. J. C 83 (2023) 982 Fulltext: 2212.09379 - PDF; document - PDF; External link: Previous draft version
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3.
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
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4.
Search for lepton-flavor-violation in $Z$-boson decays with $\tau$-leptons with the ATLAS detector / ATLAS Collaboration
A search for lepton-flavor-violating $Z\rightarrow e\tau$ and $Z\rightarrow\mu\tau$ decays with $pp$ collision data recorded by the ATLAS detector at the LHC is presented. This analysis uses 139 fb$^{-1}$ of Run 2 $pp$ collisions at $\sqrt{s}=13$ TeV and is combined with the results of a similar ATLAS search in the final state in which the $\tau$-lepton decays hadronically, using the same data set as well as Run 1 data. [...]
arXiv:2105.12491; CERN-EP-2021-067.- Geneva : CERN, 2021-07-01 - 28 p. - Published in : Phys. Rev. Lett. 127 (2022) 271801 Fulltext: PhysRevLett.127.271801 - PDF; 2105.12491 - PDF; External link: Previous draft version
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5.
Performance of the ATLAS Level-1 topological trigger in Run 2 / ATLAS Collaboration
During LHC Run 2 (2015-2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1x10$^{34}$ cm$^{-2}$s$^{-1}$, which exceeds the design value by a factor of two. The system was installed in 2016 and operated in 2017 and 2018. [...]
arXiv:2105.01416; CERN-EP-2021-040.- Geneva : CERN, 2022-01-05 - 26 p. - Published in : Eur. Phys. J. C 82 (2022) 7 Fulltext: 2105.01416 - PDF; Publication - PDF; External link: Previous draft version
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6.
Application of Quantum Machine Learning using the Quantum Kernel Algorithm on High Energy Physics Analysis at the LHC / Wu, Sau Lan (Wisconsin U., Madison) ; Sun, Shaojun (Wisconsin U., Madison) ; Guan, Wen (Wisconsin U., Madison) ; Zhou, Chen (Wisconsin U., Madison) ; Chan, Jay (Wisconsin U., Madison) ; Cheng, Chi Lung (Wisconsin U., Madison) ; Pham, Tuan (Wisconsin U., Madison) ; Qian, Yan (Wisconsin U., Madison) ; Wang, Alex Zeng (Wisconsin U., Madison) ; Zhang, Rui (Wisconsin U., Madison) et al.
Quantum machine learning could possibly become a valuable alternative to classical machine learning for applications in High Energy Physics by offering computational speed-ups. In this study, we employ a support vector machine with a quantum kernel estimator (QSVM-Kernel method) to a recent LHC flagship physics analysis: $t\bar{t}H$ (Higgs boson production in association with a top quark pair). [...]
arXiv:2104.05059; FERMILAB-PUB-21-552-DI-QIS.- 2021-09-08 - 9 p. - Published in : Phys. Rev. Res. 3 (2021) 033221 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF; External link: Fermilab Library Server
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7.
A search for the decays of stopped long-lived particles at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for long-lived particles, which have come to rest within the ATLAS detector, is presented. The subsequent decays of these long-lived particles can produce high-momentum jets, resulting in large out-of-time energy deposits in the ATLAS calorimeters. [...]
arXiv:2104.03050; CERN-EP-2021-041.- Geneva : CERN, 2021-07-23 - 48 p. - Published in : JHEP 2107 (2021) 173 Fulltext: 2104.03050 - PDF; document - PDF; Fulltext from publisher: PDF; External link: Previous draft version
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8.
Measurements of $W^+W^-+\ge 1$ jet production cross-sections in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
Fiducial and differential measurements of $W^+W^-$ production in events with at least one hadronic jet are presented. These cross-section measurements are sensitive to the properties of electroweak-boson self-interactions and provide a test of perturbative quantum chromodynamics and the electroweak theory. [...]
arXiv:2103.10319; CERN-EP-2021-030.- Geneva : CERN, 2021 - 58 p. - Published in : JHEP 2106 (2021) 003 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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9.
Evidence for Higgs boson decays to a low-mass dilepton system and a photon in pp collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for the Higgs boson decaying into a photon and a pair of electrons or muons with an invariant mass $m_{\ell\ell} < 30$ GeV is presented. The analysis is performed using 139 fb$^{-1}$ of proton-proton collision data, produced by the LHC at a centre-of-mass energy of 13 TeV and collected by the ATLAS experiment. [...]
arXiv:2103.10322; CERN-EP-2021-035.- Geneva : CERN, 2021-05-31 - 39 p. - Published in : Phys. Lett. B 819 (2021) 136412 Article from SCOAP3: PDF; Fulltext: 2103.10322 - PDF; ANA-HIGG-2018-43-PAPER - PDF; External link: Previous draft version
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10.
Emulating the impact of additional proton–proton interactions in the ATLAS simulation by presampling sets of inelastic Monte Carlo events / ATLAS Collaboration
The accurate simulation of additional interactions at the ATLAS experiment for the analysis of proton-proton collisions delivered by the Large Hadron Collider presents a significant challenge to the computing resources. During the LHC Run 2 (2015-2018) there were up to 70 inelastic interactions per bunch crossing, which need to be accounted for in Monte Carlo (MC) production. [...]
arXiv:2102.09495; CERN-EP-2021-007.- Geneva : CERN, 2022-01-27 - 46 p. - Published in : Comput. Softw. Big Sci. 6 (2022) 3 Fulltext: 2102.09495 - PDF; Publication - PDF; External link: Previous draft version
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CERN Document Server : 12 records found   1 - 10next  jump to record:
See also: similar author names
38 Cheng, C
1 Cheng, C -F
2 Cheng, C -h
2 Cheng, C C
3 Cheng, C F
1 Cheng, C G
481 Cheng, C H
2 Cheng, C H A
1 Cheng, C H Arthur
1 Cheng, C L
65 Cheng, C P
2 Cheng, C Q
3 Cheng, C S
4 Cheng, C Z
15 Cheng, C.
10 Cheng, C.H.
63 Cheng, C.L.
4 Cheng, Calvin
6 Cheng, Carina
1 Cheng, Chai-Ho
1 Cheng, Chao-Cai
2 Cheng, Chao-Kun
1 Cheng, Chao-Min
2 Cheng, Chaocai
1 Cheng, Chein I
1 Cheng, Chen
1 Cheng, Chen-Mou
24 Cheng, Cheng
1 Cheng, Chi-Bin
1 Cheng, Chi-Hao
1 Cheng, Chi-Ho
1 Cheng, Chi-Lun
1 Cheng, Chiang-Ho
6 Cheng, Chih-Hong
4 Cheng, Chih-hsiang
3 Cheng, Ching-Shui
1 Cheng, Chio-Zong
1 Cheng, Christine T
1 Cheng, Chuangxun
291 Cheng, Chun
1 Cheng, Chung-Kuan
8 Cheng, Cliff
4 Cheng, Congdian
1 Cheng, Cunfeng
24 cheng, Cheng
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