scholarly journals First measurement of associated vector boson plus prompt charmonium production at the ATLAS experiment

2014 ◽  
Author(s):  
Hannah Ruth ARNOLD
Keyword(s):  
Vector Boson ◽  
Charmonium Production ◽  
Atlas Experiment

scholarly journals Standard Model physics at ATLAS

2019 ◽  
Vol 222 ◽  
pp. 01002 ◽  
Author(s):  
E. Yu. Soldatov
Keyword(s):  
Standard Model ◽  
Vector Boson ◽  
Final States ◽  
Jet Substructure ◽  
Direct Photons ◽  
Final State ◽  
Atlas Experiment ◽  
Forward Proton ◽  
Vector Boson Scattering

The latest advances in Standard Model measurements performed by the ATLAS experiment at the LHC are discussed. Vector-boson scattering processes have been observed in several final states (ZZ, WZ, same-sign WW), and evidence has been reached in the Zγ final state. The experimental precision of QCD measurements has reached the same order as the theoretical uncertainties on the NNLO calculations. Evidence for the triboson WVV final state has been achieved. The latest results on V+jets, Zγ, W+W− and direct photons production are presented. New results on jet substructure and forward proton tagging program are also discussed.

scholarly journals Measurements of Higgs bosons decaying to bottom quarks from vector boson fusion production with the ATLAS experiment at $$\sqrt{s}=13\,\text {TeV}$$

2021 ◽  
Vol 81 (6) ◽  
Author(s):  
◽  
G. Aad ◽  
B. Abbott ◽  
D. C. Abbott ◽  
A. Abed Abud ◽  
...  
Keyword(s):  
Standard Model ◽  
Vector Boson ◽  
Hadron Collider ◽  
Higgs Bosons ◽  
Measured Signal ◽  
Proton Collision ◽  
Vector Boson Fusion ◽  
Quark Pairs ◽  
Atlas Experiment ◽  
The Standard Model

AbstractThe paper presents a measurement of the Standard Model Higgs Boson decaying to b-quark pairs in the vector boson fusion (VBF) production mode. A sample corresponding to 126 $$\hbox {fb}^{-1}$$ fb - 1 of $$\sqrt{s} = 13\,\text {TeV}$$ s = 13 TeV proton–proton collision data, collected with the ATLAS experiment at the Large Hadron Collider, is analyzed utilizing an adversarial neural network for event classification. The signal strength, defined as the ratio of the measured signal yield to that predicted by the Standard Model for VBF Higgs production, is measured to be $$0.95^{+0.38}_{-0.36}$$ 0 . 95 - 0.36 + 0.38 , corresponding to an observed (expected) significance of 2.6 (2.8) standard deviations from the background only hypothesis. The results are additionally combined with an analysis of Higgs bosons decaying to b-quarks, produced via VBF in association with a photon.

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