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ATLAS Preprints

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2018-12-14
09:37
Exotics at the LHC / Del Re, Daniele (INFN, Rome ; Rome U.) /ATLAS, CMS and LHCB Collaborations
LHC has worked beautifully and provided more than 100 fb$^{-1}$ at 13 TeV. Thanks to this enormous statistics of p-p collisions, LHC experiments have been able to explore several different new physics scenarios. [...]
CMS-CR-2018-392.- Geneva : CERN, 2018 - 11 p. Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018

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2018-12-14
09:37
Top pair production measurements, inclusive and differential / Fernandez Menendez, Javier (Oviedo U.) /ATLAS, CMS and LHCB Collaborations
Recent results and state-of-the-art on top-quark pair production cross sections in both inclusive and differential measurements are presented, obtained using data collected with the ATLAS, CMS and LHCb experiments during the LHC Run1 and Run2 periods up to the year 2016 at centre-of-mass energies ranging from 5.02 to 13TeV. Results are confronted against Standard Model (SM) next-to-leading order (NLO) and next-to-next-to-leading order (NNLO) predictions, several Monte Carlo (MC) generators and tunes, and parton density function variations, with a special focus on the latest Run2 results..
CMS-CR-2018-126.- Geneva : CERN, 2018 - 9 p. Fulltext: PDF;
In : Sixth Annual Conference on Large Hadron Collider Physics, Bologna, Italy, 4 - 9 Jun 2018

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2018-12-14
09:37
Top quark properties / Van Mulders, Petra Karel Ann (Vrije U., Brussels) /ATLAS and CMS Collaborations
The multi-purpose experiments at CERN's Large Hadron Collider have a very rich programme in top quark physics. The large amount of data allows for measuring the top quark properties with an unprecedented precision. [...]
CMS-CR-2018-284.- Geneva : CERN, 2018 - 6 p. Fulltext: PDF;
In : 11th International Workshop on Top Quark Physics, Bad Neuenahr, Germany, 16 - 21 Sep 2018

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2018-12-11
04:09
Proton PDFs constraints from measurements using the ATLAS experiment / Giuli, F. (Oxford U.)
High-precision measurements of Standard Model processes provide information on different aspects contributing to the process, such as parton distribution functions, and comparisons with the current precision reached theoretically on the calculations of the cross sections of such processes. [...]
arXiv:1811.09449. - 6 p.
Fulltext

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2018-12-10
16:26
Electron and photon energy calibration with the ATLAS detector using 2015-2016 LHC proton-proton collision data / ATLAS Collaboration
This paper presents the electron and photon energy calibration obtained with the ATLAS detector using about 36 fb$^{-1}$ of LHC proton-proton collision data recorded at $\sqrt{s}=13$ TeV in 2015 and 2016. [...]
arXiv:1812.03848 ; CERN-EP-2018-296. - 2018. - 61 p.
Fulltext - Previous draft version - Fulltext

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2018-12-10
09:48
Search for heavy long-lived multi-charged particles in proton-proton collisions at $\sqrt{s} = 13$ TeV using the ATLAS detector / ATLAS Collaboration
A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. [...]
arXiv:1812.03673 ; CERN-EP-2018-284. - 2018. - 38 p.
Fulltext - Previous draft version - Fulltext

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2018-12-09
04:45
Search for flavour-changing neutral currents $tZ$ interactions in $pp$ collisions at $\sqrt{s}$=13 TeV with ATLAS / Peixoto, Ana
A search for flavour-changing neutral currents (FCNC) processes in proton-proton ($pp$) collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider (LHC) is presented. [...]
arXiv:1812.01363. - 5 p.
Fulltext

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2018-12-07
12:43
Study of the rare decays of $B^0_s$ and $B^0$ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector / ATLAS Collaboration
A study of the decays $B^0_s \to \mu^+\mu^-$ and $B^0 \to \mu^+\mu^-$ has been performed using 26.3 fb$^{-1}$ of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in 2015 and 2016. [...]
arXiv:1812.03017 ; CERN-EP-2018-291. - 2018. - 44 p.
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2018-12-05
09:40
Beyond standard model searches on diboson resonances, vector-like quarks, and heavy bosons with top in the final state / Pazzini, Jacopo (INFN, Padua ; Padua U.) /ATLAS and CMS Collaborations
The most recent results in the searches for physics beyond the standard model at the ATLAS and CMS experiments are presented, based on the data collected in proton-proton collisions at the CERN LHC at the center-of-mass energy of $\sqrt{s}=13$~TeV, with emphasis on the production of vector-like quarks and the production of heavy new resonance decaying to third generation SM quarks or gauge bosons.The decay of these new heavy states will present the striking feature of generating highly collimated decay products, as the results of a large Lorentz boost.For this reasons, the reconstruction and identification of hadronic decays are critical to most searches and are described in detail in this contribution..
CMS-CR-2018-367.- Geneva : CERN, 2018 - 9 p. Fulltext: PDF;
In : 25th Rencontres du Vietnam, Quy Nhon, Vietnam, 5 - 11 Aug 2018

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2018-12-04
22:51
Measurements of inclusive and differential fiducial cross-sections of $t\bar{t}\gamma$ production in leptonic final states at $\sqrt{s} = 13$ TeV in ATLAS / ATLAS Collaboration
Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 fb$^{-1}$, collected by the ATLAS detector at the LHC in 2015 and 2016 at a centre-of-mass energy of 13 TeV. [...]
arXiv:1812.01697 ; CERN-EP-2018-302. - 2018. - 56 p.
Fulltext - Previous draft version - Fulltext

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