CERN Accelerating science

ATLAS Preprints

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2018-11-13
10:49
Searches with boosted objects in ATLAS and CMS / Zucchetta, Alberto (Zurich U.) /ATLAS and CMS Collaborations
A summary of searches for heavy resonances decaying into boosted bosons or top quarks is presented. The searches are performed on the data collected during 2016 and 2017 by the ATLAS and CMS experiments from pp collisions produced at the CERN LHC at $\sqrt{s}=13$ TeV. [...]
CMS-CR-2018-257.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : 30th Rencontres de Blois Particle Physics and Cosmology, Blois, France, 3 - 8 Jun 2018

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2018-11-12
12:46
Search for Higgs boson pair production in the $b\bar{b}WW^\ast$ decay mode at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for Higgs boson pair production in the $b\bar{b}WW^\ast$ decay mode is performed in the $b\bar{b}l\nu qq$ final state using 36.1 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. [...]
arXiv:1811.04671 ; CERN-EP-2018-237.
- 2018. - 49 p.
Fulltext - Previous draft version - Full text

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2018-11-09
08:36
Heavy flavor spectroscopy and exotic states at LHC / Sur, Nairit (TIFR, Mumbai, DHEP) /ATLAS, CMS and LHCB Collaborations
The proton proton collision data collected at high centre of mass energies in the Large Hadron Collider provide an excellent environment for precision spectroscopy studies of beauty and charm hadrons. The general purpose experiments, ATLAS and CMS, and the forward-spectrometer experiment LHCb have investigated many interesting aspects of hadron spectroscopy over the years. [...]
CMS-CR-2018-221.- Geneva : CERN, 2018 - 10 p. Fulltext: PDF;
In : 16th Conference on Flavor Physics and CP Violation (FPCP 2018), Hyderabad, India, 14 - 18 Jul 2018

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2018-11-06
21:57
Search for the production of a long-lived neutral particle decaying within the ATLAS hadronic calorimeter in association with a $Z$ boson from $pp$ collisions at $\sqrt{s} = 13$ TeV / ATLAS Collaboration
This Letter presents a search for the production of a long-lived neutral particle decaying within the ATLAS hadronic calorimeter, in association with a Standard Model $Z$ boson produced via an intermediate scalar boson, where $Z \rightarrow l^+ l^-$ ($l=e,\mu$). [...]
arXiv:1811.02542 ; CERN-EP-2018-275.
- 2018. - 25 p.
Fulltext - Previous draft version - Fulltext

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2018-11-06
14:46
Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for four-top-quark production, $t\bar{t}t\bar{t}$, is presented. [...]
arXiv:1811.02305 ; CERN-EP-2018-174.
- 2018. - 52 p.
Fulltext - Previous draft version - Fulltext

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2018-11-03
04:19
Measurements of Fourier harmonics azimuthal anisotropy in Pb+Pb and Xe+Xe collisions / Burka, Klaudia (Cracow, INP)
The high-statistics data sets collected by the LHC experiments during the heavy-ion runs allow for a detailed study of the azimuthal anisotropy of charged particles. [...]
arXiv:1809.10648.
- 7 p.
Fulltext

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2018-11-02
08:18
Collider searches for Dark Matter (ATLAS+CMS) / Trevisani, Nicolo' (Cantabria Inst. of Phys.) /ATLAS and CMS Collaborations
Several searches for dark matter have been performed by the ATLAS and CMScollaborations, using proton-proton collisions with a center of mass of 13 TeV produced by theLarge Hadron Collider. Different signatures may highlight the presence of dark matter the imbalancein the transverse momentum in an event due to the presence of undetectable dark matter particles,produced together with one Standard Model particle, a bump in the di-jet or di-lepton invariant massdistributions, or an excess of events in the di-jet angular distribution, produced by a dark mattermediator. [...]
CMS-CR-2018-291.- Geneva : CERN, 2018 - 16 p. Fulltext: PDF;
In : 7th International Conference on New Frontiers in Physics, Kolymbari, Crete, Greece, 4 - 12 Jul 2018

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2018-11-02
04:40
Measurements and Searches of Higgs boson decays to two fermions / Masubuchi, Tatsuya (Tokyo U., ICEPP)
The interaction of the Higgs boson to fermion is most fragile part in the Standard model. [...]
arXiv:1809.09011 ; CIPANP2018-Masubuchi.
- 9 p.
Fulltext

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2018-10-22
11:22
Production, spectroscopy and properties of heavy hadrons / Galanti, Mario (Rochester U.) /ALICE,ATLAS,CMS and LHCB Collaborations
In this report I will describe the latest results of the ALICE, ATLAS, CMS, and LHCb experiments in the fields of production, spectroscopy, and properties of heavy hadrons. In particular, I will concentrate on measurements of quarkonium production cross sections, polarization, and mass, on measurements of production cross sections and lifetimes of open heavy flavors, on the recent observations of new states and decay modes, and on other searches for new and exotic hadrons..
CMS-CR-2018-206.- 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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2018-10-22
11:15
Hadronic Tau reconstruction and identification performance in ATLAS and CMS / Galloni, Camilla (Zurich U.) /ATLAS and CMS Collaborations
The reconstruction and identification of hadronic tau lepton decays is an essential requisite of the ATLAS and CMS physics program, for what concerns both the standard model measurements and searches of new physics beyond the standard model. In the following, the ATLAS and CMS algorithms for the hadronic tau lepton decays reconstruction and identification are presented, together with the measurements of the most important performance figures and calibrations..
CMS-CR-2018-166.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : Sixth Annual Conference on Large Hadron Collider Physics, Bologna, Italy, 4 - 9 Jun 2018

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