Electron and photon performance measurements with the ATLAS detector using the 2015–2017 LHC proton-proton collision data

G Aad, B Abbott, DC Abbott, AA Abud… - Journal of …, 2019 - iopscience.iop.org
Electron and photon performance measurements with the ATLAS detector using the 2015–2017
LHC proton-proton collision data Page 1 Journal of Instrumentation OPEN ACCESS Electron …

Observation of New Resonances Decaying to and

R Aaij, C Abellán Beteta, T Ackernley, B Adeva… - Physical Review Letters, 2021 - APS
The first observation of exotic states with a new quark content cc¯ us¯ decaying to the J/ψ
K+ final state is reported with high significance from an amplitude analysis of the B+→ J/ψ ϕ …

Measurement of the decay properties and search for the and decays

R Aaij, C Abellán Beteta, T Ackernley, B Adeva… - Physical Review D, 2022 - APS
An improved measurement of the decay B s 0→ μ+ μ-and searches for the decays B 0→ μ+
μ-and B s 0→ μ+ μ-γ are performed at the LHCb experiment using data collected in proton …

Evidence of a structure and observation of excited states in the decay

R Aaij, CA Beteta, T Ackernley, B Adeva… - arXiv preprint arXiv …, 2020 - arxiv.org
First evidence of a structure in the $ J/\psi\varLambda $ invariant mass distribution is
obtained from an amplitude analysis of $\varXi_b^-\to J/\psi\varLambda K^-$ decays. The …

Amplitude analysis of the decay

R Aaij, C Abellán Beteta, T Ackernley, B Adeva… - Physical Review D, 2020 - APS
Results are reported from an amplitude analysis of the B+→ D+ D-K+ decay. The analysis is
carried out using LHCb proton-proton collision data taken at s= 7, 8, and 13 TeV …

Study of the rare decays of B s 0 and B0 mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector

M Aaboud, G Aad, B Abbott, DC Abbott… - Journal of high energy …, 2019 - Springer
A bstract A study of the decays B 0 s→ μ+ μ− and B 0→ μ+ μ− has been performed using
26.3 fb− 1 of 13 TeV LHC proton-proton collision data collected with the ATLAS detector in …

First observation of a doubly charged tetraquark and its neutral partner

R Aaij, ASW Abdelmotteleb, C Abellan Beteta… - Physical Review Letters, 2023 - APS
A combined amplitude analysis is performed for the decays B 0→ D¯ D 0 s+ π-and B+→ DD
s+ π+, which are related by isospin symmetry. The analysis is based on data collected by the …

Measurement of the e+ e−→ π+ π− cross section between 600 and 900 MeV using initial state radiation

M Ablikim, MN Achasov, XC Ai, O Albayrak, M Albrecht… - Physics Letters B, 2016 - Elsevier
We extract the e+ e−→ π+ π− cross section in the energy range between 600 and 900 MeV,
exploiting the method of initial state radiation. A data set with an integrated luminosity of 2.93 …

Top-quark physics: status and prospects

U Husemann - Progress in Particle and Nuclear Physics, 2017 - Elsevier
After the discovery of the top quark more than 20 years ago, its properties have been studied
in great detail both in production and in decay. Increasingly sophisticated experimental …

Measurement of the Crab Nebula spectrum past 100 TeV with HAWC

AU Abeysekara, A Albert, R Alfaro… - The Astrophysical …, 2019 - iopscience.iop.org
We present TeV gamma-ray observations of the Crab Nebula, the standard reference source
in ground-based gamma-ray astronomy, using data from the High Altitude Water Cherenkov …