ATLAS Conference Notes

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2018-10-03
17:23

Dijet azimuthal correlations and conditional yields in $p\!p$ and $p$+Pb collisions at $\sqrt{s_{_\text{NN}}}$~=~5.02 TeV with the ATLAS detector
This paper presents a measurement of forward--forward and forward--central dijet azimuthal angular correlations and conditional yields in proton--proton ($pp$) and proton--lead ($p$+Pb) collisions as a probe for possible gluon-density saturation in regions where the momentum fraction of a parton compared to a nucleon in the lead nucleus is low. [...]
ATLAS-CONF-2018-050. - 2018. - 29 p.
Original Communication (restricted to ATLAS) - Full text

2018-09-20
12:48

Search for top quark decays t\rightarrowHq with 36 fb^{−1} of pp collision data 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 ($q=u, c$) and the Standard Model Higgs boson, $t\to Hq$, is presented. [...]
ATLAS-CONF-2018-049. - 2018. - 42 p.
Original Communication (restricted to ATLAS) - Full text

2018-09-20
12:43

Measurements of inclusive and differential cross-sections of $t\bar{t}\gamma$ production in leptonic final states in a fiducial volume at $\sqrt{s}=13~\text{TeV}$ in ATLAS
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. [...]
ATLAS-CONF-2018-048. - 2018. - 46 p.
Original Communication (restricted to ATLAS) - Full text

2018-09-20
12:38

Measurement of the $t\bar{t}W$ and $t\bar{t}Z$ cross sections in proton–proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
A measurement of the associated production of $t\bar{t}$ events with a vector boson ($W$, $Z$) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented, using 36.1 fb$^{-1}$ of integrated luminosity collected by the ATLAS detector at the Large Hadron Collider. [...]
ATLAS-CONF-2018-047. - 2018.
Original Communication (restricted to ATLAS) - Full text

2018-09-20
12:32

Study of the rare decays of B0s and B0 into muon pairs from data collected during 2015 and 2016 with the ATLAS detector
A study of the decays $B_s^0 \to \mu^+\mu^−$ and $B^0 \to \mu^+\mu^−$ has been performed using $26.3$~fb$^{-1}$ of $13$ TeV LHC proton-proton collisions collected with the ATLAS detector in 2015 and 2016. [...]
ATLAS-CONF-2018-046. - 2018.
Original Communication (restricted to ATLAS) - Full text

2018-09-14
15:39

Calibration of the ATLAS $b$-tagging algorithm in $t\bar{t}$ semi-leptonic events
The calibration of the ATLAS $b$-tagging algorithm in environments characterised by large jet multiplicity is presented. [...]
ATLAS-CONF-2018-045. - 2018.
Original Communication (restricted to ATLAS) - Full text

2018-09-13
17:29

Search for charged lepton-flavour violation in top-quark decays at the LHC with the ATLAS detector
A direct search for charged lepton-flavour violation in top-quark decays is presented. [...]
ATLAS-CONF-2018-044. - 2018.
Original Communication (restricted to ATLAS) - Full text

2018-09-13
09:09

Combination of searches for Higgs boson pairs in $pp$ collisions at 13 TeV with the ATLAS experiment.
This note presents a combination of searches for Higgs boson pairs using up to 36.1 fb$^{-1}$ of proton--proton collision data at a centre-of-mass energy $\sqrt{s} = 13$ TeV recorded with the ATLAS detector at the LHC. [...]
ATLAS-CONF-2018-043. - 2018. - 11 p.
Original Communication (restricted to ATLAS) - Full text

2018-07-27
16:47

Search for direct chargino pair production with W-boson mediated decays in events with two leptons and missing transverse momentum at $\sqrt{s} = 13$ TeV with the ATLAS detector
The results of a search for the direct pair production of charginos decaying via W-bosons are reported using 80.5 fb-1 of integrated luminosity from LHC $pp$ collisions at 13 TeV collected by the ATLAS detector in the 2015, 2016 and 2017 data taking campaigns. [...]
ATLAS-CONF-2018-042. - 2018. - 23 p.
Original Communication (restricted to ATLAS) - Full text

2018-07-25
16:04

Search for supersymmetry in final states with missing transverse momentum and multiple $b$-jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search for supersymmetry involving the pair production of gluinos decaying via third-generation squarks into the lightest neutralino ($\displaystyle\tilde\chi^0_1$) is reported. [...]
ATLAS-CONF-2018-041. - 2018.
Original Communication (restricted to ATLAS) - Full text

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