ATLAS Conference Notes

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2019-11-04
10:58

Longitudinal flow decorrelations in Xe+Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV with the ATLAS detector
First measurement of longitudinal decorrelations of harmonic flow $v_n$ for $n=2$, 3 and 4 in Xe+Xe collisions at \mbox{$\sqrt{s_{\mathrm{NN}}}=5.44$}~TeV is obtained using the ATLAS detector at the LHC. [...]
ATLAS-CONF-2019-055. - 2019.
Original Communication (restricted to ATLAS) - Full text

2019-11-04
10:52

Production of $\varUpsilon(\mathrm{nS})$ mesons in Pb+Pb and $\it{pp}$ collisions at 5.02 TeV with ATLAS
The measurement of the production of bottomonium states, $\mit{\Upsilon}(\text{1S})$, $\mit{\Upsilon}(\text{2S})$ and $\mit{\Upsilon}(\text{3S})$, in Pb+Pb and $pp$ collisions at a center-of-mass energy per nucleon pair of $5.02~\mathrm{TeV}$ is presented. [...]
ATLAS-CONF-2019-054. - 2019. - 20 p.
Original Communication (restricted to ATLAS) - Full text

2019-11-04
10:46

Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02~\mathrm{TeV}$ with the ATLAS detector
Azimuthal anisotropies of muons from charm and bottom decays are measured in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}}= 5.02~\mathrm{TeV}$. [...]
ATLAS-CONF-2019-053. - 2019.
Original Communication (restricted to ATLAS) - Full text

2019-11-04
10:41

Measurement of $Z$-tagged charged-particle yields in 5.02 TeV Pb+Pb and $pp$ collisions with the ATLAS detector
The yields of charged particles azimuthally balanced by a high-transverse-momentum ($p_\mathrm{T}$) $Z$ boson are measured in $pp$ and Pb+Pb collision data recorded by the ATLAS detector at the Large Hadron Collider. [...]
ATLAS-CONF-2019-052. - 2019.
Original Communication (restricted to ATLAS) - Full text

2019-11-04
10:36

Measurement of non-exclusive dimuon pairs produced via $\gamma\gamma$ scattering in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV with the ATLAS detector
Results are presented of a measurement of dimuons produced via $\gamma\gamma$ scattering processes in inelastic, non-ultra-peripheral Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV. [...]
ATLAS-CONF-2019-051. - 2019.
Original Communication (restricted to ATLAS) - Full text

2019-10-17
10:59

Test of CP invariance in vector-boson fusion production of the Higgs boson in the $H\rightarrow\tau\tau$ channel in proton--proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
A test of CP invariance in Higgs boson production via vector-boson fusion in the $H\rightarrow\tau\tau$ decay mode is presented. [...]
ATLAS-CONF-2019-050. - 2019.
Original Communication (restricted to ATLAS) - Full text

2019-10-17
10:57

Constraints on the Higgs boson self-coupling from the combination of single-Higgs and double-Higgs production analyses performed with the ATLAS experiment
Constraints on the Higgs boson self-coupling are set by combining the single Higgs boson analyses targeting the $\gamma \gamma$, $ZZ^*$, $WW^*$, $\tau^+ \tau^-$ and $b\bar{b}$ decay channels and the double Higgs boson analyses in the $b\bar{b}b\bar{b}$, $b\bar{b}\tau^+\tau^-$ and $b\bar{b} \gamma \gamma$ decay channels, using data collected at $\sqrt{s} = 13$ TeV with the ATLAS detector at the LHC. [...]
ATLAS-CONF-2019-049. - 2019. - 16 p.
Original Communication (restricted to ATLAS) - Full text

2019-10-17
10:53

Study of $J/\psi p$ resonances in the $Λ^0_b→J/\psi pK^−$ decays in $pp$ collisions at $\sqrt{s}$=7 and 8TeV with the ATLAS detector
A study of $J/\psi p$ resonances in the $Λ^0_b→J/\psi pK^−$ decays with large $m(pK^-)$ invariant masses by the ATLAS experiment at the LHC is presented. [...]
ATLAS-CONF-2019-048. - 2019. - 24 p.
Original Communication (restricted to ATLAS) - Full text

2019-10-17
10:45

Measurement of the production cross-section of $J/\psi$ and $\psi(2{\mathrm S})$ mesons at high transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
The measurements of the prompt and non-prompt differential cross-sections of $J/\psi$ and $\psi(2\mathrm{S})$ mesons with $p_{T}$ between 60 and 360 GeV and rapidity range $|y|<2$ are reported. [...]
ATLAS-CONF-2019-047. - 2019.
Original Communication (restricted to ATLAS) - Full text

2019-10-17
10:43

Measurement of the top quark mass using a leptonic invariant mass in pp collisions at $sqrt{s}$ = 13 TeV with the ATLAS detector
A measurement of the top quark mass ($m_t$) in the $t\bar{t}\rightarrow~\textrm{lepton}+\textrm{jets}$ channel is presented, with an experimental technique which exploits semileptonic decays of $b$-hadrons produced in the top-quark decay chain. [...]
ATLAS-CONF-2019-046. - 2019.
Original Communication (restricted to ATLAS) - Full text

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