2026
article
OpenAlex
Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed et autres
A search for non-resonant Higgs boson pair production ($HH$) in the $b\bar{b}\tau^+\tau^-$ final state is performed using 140 fb$^{-1}$ and 56 fb$^{-1}$ of proton--proton collision data at centre-of-mass energies of $\sqrt{s} = 13$ TeV and 13.6 TeV, respectively, recorded by the ATLAS …
2026
article
OpenAlex
Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed et autres
A search for the production of a Higgs boson in association with a single top quark in multi-lepton final states including a $\tau$ lepton is presented, using an integrated luminosity of $140\,\text{fb}^{-1}$ of proton-proton collision data at a centre-of-mass energy of $\sqrt{s} …
2026
article
OpenAlex
Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed et autres
A search for a Lorentz-boosted pseudoscalar resonance a in the mass range between 20 GeV and 85 GeV, produced in association with a top-anti top pair and decaying to a $\tau$-lepton pair, is presented. Both $\tau$-leptons are reconstructed in the hadronic decay …
2026
article
OpenAlex
Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed et autres
The search for heavy Majorana neutrinos coupling to the third-generation leptons in vector boson scattering at the LHC is presented for the first time. The search is performed in the final state with a same-sign $\tau\tau$, $e\tau$ or $\mu\tau$ pair using a …
2026
article
OpenAlex
Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed et autres
This Letter presents the observation of the electroweak production of two isolated photons in association with two jets together with measurements of the corresponding fiducial and differential cross sections. The analysis is performed using proton-proton collision data collected by ATLAS at the …
2026
article
OpenAlex
Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed et autres
Cross section measurements of high-Lorentz boosted Higgs boson production in final states with pairs of hadronically decaying $\tau$-leptons are presented. The analysis is based on the full Run 2 data sample of proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 13$ …
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2026
article
OpenAlex
Georges Aad, Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed et autres
This paper reports a search for decays of long-lived charginos or $\tau$-sleptons to final states containing a short disappearing track, a single high-energy jet, and missing transverse momentum. The search uses 137 fb$^{-1}$ of data from 13 TeV proton-proton collisions recorded by …