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ATLAS Preprints

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2021-01-14
06:01
Associated quarkonium production at ATLAS / Zakareishvili, T (Tbilisi State U.)
The associated production of a vector boson with quarkonia is a key new observable for understanding the quarkonium production mechanisms, including the separation of single and double parton scattering components. [...]
2020. - 8 p.
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2021-01-12
19:14
The ATLAS Fast TracKer system / ATLAS Collaboration
The ATLAS Fast TracKer (FTK) was designed to provide full tracking for the ATLAS high-level trigger by using pattern recognition based on Associative Memory (AM) chips and fitting in high-speed field programmable gate arrays. [...]
arXiv:2101.05078 ; CERN-EP-2020-232. - 2021. - 64 p.
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2021-01-12
19:07
Determination of the parton distribution functions of the proton from ATLAS measurements of differential $W^\pm$ and $Z$ boson production in association with jets / ATLAS Collaboration
This article presents a new set of proton parton distribution functions, ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading order in QCD. [...]
arXiv:2101.05095 ; CERN-EP-2020-237. - 2021. - 41 p.
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2021-01-05
13:07
Search for squarks and gluinos in final states with one isolated lepton, jets, and missing transverse momentum at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
The results of a search for gluino and squark pair production with the pairs decaying via the lightest charginos into a final state consisting of two $W$ bosons, the lightest neutralinos ($\tilde{\chi^0_1}$), and quarks, are presented. [...]
arXiv:2101.01629 ; CERN-EP-2020-228. - 2021. - 48 p.
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2020-12-07
16:46
Search for new phenomena with top quark pairs in final states with one lepton, jets, and missing transverse momentum in $pp$ collisions at $\sqrt{s}$= 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for new phenomena with top quark pairs in final states with one isolated electron or muon, multiple jets, and large missing transverse momentum is performed. [...]
arXiv:2012.03799 ; CERN-EP-2020-177. - 2020. - 67 p.
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2020-12-05
04:53
Impact of ATLAS $V$ + jets data on PDF fits / Giuli, F. (INFN, Rome2 ; Rome U., Tor Vergata)
This proceeding presents a new set of proton parton distribution functions, ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading-order in QCD. [...]
arXiv:2011.08481. - 6 p.
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2020-12-03
04:59
Muon reconstruction and identification efficiency in ATLAS using the full Run 2 $pp$ collision data set at $\sqrt{s}=13$ TeV / ATLAS Collaboration
This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV collected between 2015 and 2018 during Run 2 of the LHC. [...]
arXiv:2012.00578 ; CERN Preprint ID: CERN-EP-2020-199. - 60 p.
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2020-12-02
09:35
Muon reconstruction and identification efficiency in ATLAS using the full Run 2 $pp$ collision data set at $\sqrt{s}=13$ TeV
This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV collected between 2015 and 2018 during Run 2 of the LHC [...]
CERN-EP-2020-199. - 2020.
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2020-11-24
17:59
Exclusive dimuon production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV with ATLAS / ATLAS Collaboration
Exclusive dimuon production in ultraperipheral collisions (UPC), resulting from photon-photon interactions in the strong electromagnetic fields of colliding high-energy lead nuclei, $\mathrm{PbPb} (\gamma\gamma) \rightarrow \mu\mu (\mathrm{Pb}^{(\star)}\mathrm{Pb}^{(\star)} )$, is studied using $\mathcal{L}_{\mathrm{int}} = 0.48$ nb$^{-1}$ of $\sqrt{s_\mathrm{NN}}=5.02$ TeV lead-lead collision data at the LHC with the ATLAS detector. [...]
arXiv:2011.12211 ; CERN-EP-2020-138. - 2020. - 50 p.
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2020-11-23
09:22
Search for trilepton resonances from chargino and neutralino pair production in $\sqrt{s} = 13$ TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
A search is performed for the electroweak pair production of charginos and associated production of a chargino and neutralino, each of which decays through an $R$-parity-violating coupling into a lepton and a $W, \, Z$, or Higgs boson. [...]
arXiv:2011.10543 ; CERN-EP-2020-201. - 2020. - 51 p.
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