# ATLAS Preprints

2021-01-27
18:53
 Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a $\tau$-lepton in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector A search for pair production of third-generation scalar leptoquarks decaying into a top quark and a $\tau$-lepton is presented. [...] CERN-EP-2020-241. - 2021. Fulltext - Previous draft version

2021-01-26
15:23
 Two-particle azimuthal correlations in photonuclear ultraperipheral Pb+Pb collisions at 5.02 TeV with ATLAS Two-particle long-range azimuthal correlations are measured in photonuclear collisions using 1.7 nb$^{-1}$ of 5.02 TeV Pb+Pb collision data collected by the ATLAS experiment at the LHC. [...] CERN-EP-2020-246. - 2021. Fulltext - Previous draft version

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. Fulltext

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. Fulltext - Previous draft version - Fulltext

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. Fulltext - Previous draft version - Fulltext

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. Fulltext - Previous draft version - Fulltext

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. Fulltext - Previous draft version - Fulltext

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. Fulltext

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. Fulltext

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. Fulltext - Previous draft version