ATLAS Conference Notes

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2022-05-20
16:52

Combination of searches for heavy resonances using 139 fb$^{-1}$ of proton–proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector
Searches for new heavy resonances decaying into different pairings of $W$, $Z$, or Higgs bosons, as well as directly into leptons, are presented using a data sample corresponding to 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV collected from 2015-2018 with the ATLAS detector at the CERN Large Hadron Collider. [...]
ATLAS-CONF-2022-033. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-05-18
10:46

Measuring $CP$ properties of Higgs boson interactions with $\tau$ leptons with the ATLAS detector
A study of the charge conjugation and parity ($CP$) properties of the interaction between the Higgs boson and $\tau$ leptons is presented. [...]
ATLAS-CONF-2022-032. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-05-18
10:09

Measurement of the $t\bar{t}$ production cross-section in $pp$ collisions at $\sqrt{s}=5.02$ TeV with the ATLAS detector
The inclusive top-quark pair ($t\bar{t}$) production cross-section $\sigma_{t\bar{t}}$ is measured in proton-proton collisions at a centre-of-mass energy $\sqrt{s}=5.02$ TeV, using 257 pb$^{-1}$ of data collected in 2017 by the ATLAS experiment at the LHC. [...]
ATLAS-CONF-2022-031. - 2022. - 30 p.
Original Communication (restricted to ATLAS) - Full text

2022-05-18
10:07

Measurement of single top-quark production in the s-channel in proton-proton collisions at $\mathrm{\sqrt{s}=13~TeV}$ with the ATLAS detector
A measurement of single top-quark production in the s-channel is performed in proton-proton collisions at a centre-of-mass energy of $\mathrm{13~TeV}$ with the ATLAS detector at the CERN Large Hadron Collider. [...]
ATLAS-CONF-2022-030. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-05-18
10:01

Search for dark matter produced in association with a dark Higgs boson decaying to $W^{+}W^{-}$ in the one-lepton final state at $\sqrt{s} = 13\,$TeV using 139$\,$fb$^{-1}$ of $pp$ collisions recorded with the ATLAS detector
Several extensions of the Standard Model predict the production of dark matter particles at the LHC. [...]
ATLAS-CONF-2022-029. - 2022.
Original Communication (restricted to ATLAS) - Full text - Full text

2022-05-18
09:50

A search for heavy Higgs bosons decaying into vector bosons in same-sign two-lepton final states in $pp$ collisions at $\sqrt{s}=13$~TeV with the ATLAS detector
A search for heavy Higgs bosons decaying into a pair of vector bosons and produced in association with a vector boson is performed, using final states with two leptons of the same electric charge (electrons or muons), missing transverse momentum and jets. [...]
ATLAS-CONF-2022-028. - 2022. - 36 p.
Original Communication (restricted to ATLAS) - Full text

2022-05-17
18:24

Search for a new scalar resonance in flavour-changing neutral-current top-quark decays $t\rightarrow qX$ ($q$ = $u,c$), with $X\rightarrow b\bar{b}$, in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
A search for flavour-changing neutral-current decays of a top quark into an up-type quark (either up or charm) and a light scalar particle 𝑋 decaying into a bottom anti-bottom quark pair is presented. [...]
ATLAS-CONF-2022-027. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-04-11
14:32

Measurement of substructure-dependent jet suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector
Jet substructure modification and suppression are measured in Pb+Pb collisions at a nucleon-nucleon center-of-mass energy $\sqrt{s_\mathrm{NN}}=5.02~\mathrm{TeV}$ with respect to $pp$ collisions at $\sqrt{s}=5.02~\mathrm{TeV}$ with the ATLAS detector at the Large Hadron Collider. [...]
ATLAS-CONF-2022-026. - 2022. - 26 p.
Original Communication (restricted to ATLAS) - Full text

2022-04-11
14:31

Exclusive dielectron production in ultraperipheral Pb+Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV with ATLAS
Exclusive production of dielectron pairs, $\gamma\gamma\rightarrow e^+e^-$, is studied using $L=1.72$ nb$^{-1}$ of data from ultraperipheral collisions of lead nuclei at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV recorded by the ATLAS detector at the LHC. [...]
ATLAS-CONF-2022-025. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-04-11
14:29

Strong constraints on jet quenching in centrality-dependent $p$+Pb collisions at $5.02$ TeV from ATLAS
Jet quenching is the process of color-charged partons losing energy via interactions with quark-gluon plasma droplets created in heavy-ion collisions. [...]
ATLAS-CONF-2022-024. - 2022.
Original Communication (restricted to ATLAS) - Full text

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