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ATLAS Preprints

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2018-05-24
14:48
Search for resonances in the mass distribution of jet pairs with one or two jets identified as $b$-jets in proton--proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
A search for new resonances decaying into jets containing $b$-hadrons in $pp$ collisions with the ATLAS detector at the LHC is presented in the dijet mass range from 0.57 TeV to 7 TeV. [...]
CERN-EP-2018-075. - 2018.
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2018-05-24
07:44
Measuring quark polarizations at ATLAS and CMS / Kats, Yevgeny (Ben Gurion U. of Negev)
Being able to measure the polarization of quarks produced in various processes at the LHC would be of fundamental significance. [...]
arXiv:1805.02957. - 6 p.
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2018-05-15
13:29
Measurement of the nuclear modification factor for inclusive jets in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02$ TeV with the ATLAS detector / ATLAS Collaboration
Measurements of the yield and nuclear modification factor, $R_\mathrm{ AA}$, for inclusive jet production are performed using 0.49 nb$^{-1}$ of Pb+Pb data at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV and 25 pb$^{-1}$ of $pp$ data at $\sqrt{s}=5.02$ TeV with the ATLAS detector at the LHC. [...]
CERN-EP-2018-105 ; CERN-EP-2018-105 ; arXiv:1805.05635. - 2018. - 36 p.
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2018-05-15
13:20
Measurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 2.76$ TeV with the ATLAS detector / ATLAS Collaboration
ATLAS measurements of the production of muons from heavy-flavor decays in $\sqrt{s_{\mathrm{NN}}} = 2.76$ TeV Pb+Pb collisions and $\sqrt{s} = 2.76$ TeV $pp$ collisions at the LHC are presented. [...]
CERN-EP-2018-072 ; CERN-EP-2018-072 ; arXiv:1805.05220. - 2018. - 55 p.
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2018-05-15
11:28
Measurement of jet fragmentation in Pb+Pb and $pp$ collisions at $\sqrt{s_{NN}} = 5.02$ TeV with the ATLAS detector / ATLAS Collaboration
This paper presents a measurement of jet fragmentation functions in 0.49 nb$^{-1}$ of Pb+Pb collisions and 25 pb$^{-1}$ of $pp$ collisions at $\sqrt{s_{NN}} = 5.02$ TeV collected in 2015 with the ATLAS detector at the LHC. [...]
CERN-EP-2018-096 ; CERN-EP-2018-096 ; arXiv:1805.05424. - 2018. - 55 p.
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2018-05-14
15:05
Measurement of dijet azimuthal decorrelations in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector and determination of the strong coupling / ATLAS Collaboration
A measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations is presented, using the quantity $R_{\Delta \phi}$. [...]
CERN-EP-2017-282 ; CERN-EP-2017-282 ; arXiv:1805.04691. - 2018. - 46 p.
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2018-05-11
08:47
Prompt and non-prompt $J/\psi$ and $\psi(2\mathrm{S})$ suppression at high transverse momentum in 5.02 TeV Pb+Pb collisions with the ATLAS experiment / ATLAS Collaboration
A measurement of $J/\psi$ and $\psi(2\mathrm{S})$ production is presented. [...]
CERN-EP-2018-049 ; CERN-EP-2018-049 ; arXiv:1805.04077. - 2018. - 39 p.
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2018-05-11
08:34
Angular analysis of $B^0_d \to K^{*}\mu^+\mu^-$ decays in $pp$ collisions at $\sqrt{s}= 8$ TeV with the ATLAS detector / ATLAS Collaboration
An angular analysis of the decay $B^0_d \to K^{*}\mu^+\mu^-$ is presented, based on proton-proton collision data recorded by the ATLAS experiment at the LHC. [...]
CERN-EP-2017-161 ; CERN-EP-2017-161 ; arXiv:1805.04000. - 2018. - 47 p.
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2018-05-09
18:01
Search for flavor-changing neutral currents in top quark decays $t\to Hc$ and $t \to Hu$ in multilepton final states in proton--proton collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector / ATLAS Collaboration
Flavor-changing neutral currents are not present in the Standard Model at tree level and are suppressed in loop processes by the unitarity of the Cabibbo--Kobayashi--Maskawa matrix; the corresponding rates for top quark decay processes are experimentally unobservable. [...]
CERN-EP-2018-067 ; arXiv:1805.03483. - 2018. - 36 p.
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2018-05-08
18:59
Measurement of colour flow using jet-pull observables in $t\bar{t}$ events with the ATLAS experiment at $\sqrt{s} = 13$ TeV / ATLAS Collaboration
Previous phenomenological studies and measurements have shown that weighted angular moments derived from jet constituents encode the colour connections between initiating partons that seed the jets. [...]
CERN-EP-2018-041 ; CERN-EP-2018-041 ; arXiv:1805.02935. - 2018. - 45 p.
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