141 Result(s)
within
**n-long Ma
English
Nuclear Energy
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Article
Extraction of inclusive photon production at mid-rapidity in p + p and Au + Au collisions at \(\sqrt{s_{\rm{NN}}}\) = 200 GeV
We present a comprehensive study on the individual sources of an inclusive photon production during high-energy hadronic collisions. The cross section and invariant yields of inclusive photons are obtained as ...
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Open AccessDetermination of jet calibration and energy resolution in proton–proton collisions at \(\sqrt{s} = 8~\hbox {TeV}\) using the ATLAS detector
The jet energy scale, jet energy resolution, and their systematic uncertainties are measured for jets reconstructed with the ATLAS detector in 2012 using proton–proton data produced at a centre-of-mass energy ...
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Article
Open AccessHiggs boson production cross-section measurements and their EFT interpretation in the \(4\ell \) decay channel at \(\sqrt{s}=\) 13 TeV with the ATLAS detector
Higgs boson properties are studied in the four-lepton decay channel (where lepton = e, \(\mu \) μ ...
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Open AccessMeasurements of top-quark pair spin correlations in the \(e\mu \) channel at \(\sqrt{s} = 13\) TeV using pp collisions in the ATLAS detector
A measurement of observables sensitive to spin correlations in \(t\bar{t}\)tt¯ production is presented, using 36.1 \(\hbox {fb}^{-1}\)fb-1 of pp collision data at \(\sqrt{s} = 13\)s=13 TeV recorded with the ATLAS...
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Open AccessMeasurement of \(\hbox {t}{\bar{\hbox {t}}}\) normalised multi-differential cross sections in \({\text {p}}{\text {p}} \) collisions at \(\sqrt{s}=13\,{\text {TeV}} \), and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions
Normalised multi-differential cross sections for top quark pair (\(\hbox {t}{\bar{\hbox {t}}}\)tt¯) production are measured in proton-proton collisions at a centre-of-mass energy of 13\(\,{\text {TeV}}\)TeV using...
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Open AccessA multi-dimensional search for new heavy resonances decaying to boosted \(\text{ W }{}{}\) \(\text{ W }{}{}\) , \(\text{ W }{}{}\) \(\text{ Z }{}{}\) , or \(\text{ Z }{}{}\) \(\text{ Z }{}{}\) boson pairs in the dijet final state at 13 \(\text {Te}\text {V}\)
A search in an all-jet final state for new massive resonances decaying to \(\text{ W }{}{}\)W \(\text{ W }{}{}\)W, \(\text{ W }{}{}\)W \(\text{ Z }{}{}\)Z, or \(\text{ Z }{}{}\)Z \(\text{ Z }{}{}\)Z boson pairs u...
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Article
Open AccessSearch for production of four top quarks in final states with same-sign or multiple leptons in proton–proton collisions at \(\sqrt{s}=13\) \(\,\text {TeV}\)
The standard model (SM) production of four top quarks (\(\text {t} {}{\overline{\text {t}}} \text {t} {}{\overline{\text {t}}} \)tt¯tt¯) in proton–proton collisions is studied by the CMS Collaboration. The data s...
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Article
Open AccessPerformance of electron and photon triggers in ATLAS during LHC Run 2
Electron and photon triggers covering transverse energies from 5 \(\text {GeV }\)GeV to several \(\text {TeV }\)TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Sta...
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Open AccessEvidence for \(\text {W}\text {W}\) production from double-parton interactions in proton–proton collisions at \(\sqrt{s} = 13 \,\text {TeV} \)
A search for \(\text {W}\text {W}\)WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-...
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Article
Open AccessSearches for physics beyond the standard model with the \(M_{\mathrm {T2}}\) variable in hadronic final states with and without disappearing tracks in proton–proton collisions at \(\sqrt{s}=13\,\text {Te}\text {V} \)
Two related searches for phenomena beyond the standard model (BSM) are performed using events with hadronic jets and significant transverse momentum imbalance. The results are based on a sample of proton–proto...
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Article
Open AccessExtraction and validation of a new set of CMS pythia8 tunes from underlying-event measurements
New sets of CMS underlying-event parameters (“tunes”) are presented for the pythia8 event generator. These tunes use the NNPDF3.1 parton distribution functions (PDFs) at leading (LO), next-to-leading (NLO), or ne...
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Article
Open AccessMeasurements of top-quark pair differential and double-differential cross-sections in the \(\ell \) +jets channel with pp collisions at \(\sqrt{s}=13\) TeV using the ATLAS detector
Single- and double-differential cross-section measurements are presented for the production of top-quark pairs, in the lepton + jets channel at particle and parton level. Two topologies, resolved and boosted, ...
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Article
Open AccessSearch for new physics in top quark production in dilepton final states in proton-proton collisions at \(\sqrt{s} = 13\,\text {TeV} \)
A search for new physics in top quark production is performed in proton-proton collisions at \(13\,\text {TeV} \)13TeV. The data set corresponds to an integrated luminosity of \(35.9{\,\text {fb}^{-1}} \)35.9fb-1
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Article
Open AccessMeasurement of fiducial and differential \(W^+W^-\) production cross-sections at \(\sqrt{s}=13\) TeV with the ATLAS detector
A measurement of fiducial and differential cross-sections for \(W^+W^-\)W+W- production in proton–proton collisions at \(\sqrt{s}=13\)s=13 TeV with the ATLAS experiment at the Large Hadron Collider using data cor...
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Article
Open AccessMeasurement of the inclusive cross-section for the production of jets in association with a Z boson in proton–proton collisions at 8 TeV using the ATLAS detector
The inclusive cross-section for jet production in association with a Z boson decaying into an electron–positron pair is measured as a function of the transverse momentum and the absolute rapidity of jets using 19...
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Article
Open AccessAzimuthal separation in nearly back-to-back jet topologies in inclusive 2- and 3-jet events in \({\text {p}} {\text {p}} \) collisions at \(\sqrt{s}=13\,\text {Te}\text {V} \)
A measurement for inclusive 2- and 3-jet events of the azimuthal correlation between the two jets with the largest transverse momenta, \(\varDelta \phi _{12}\)Δϕ12, is presented. The measurement considers events ...
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Article
Open AccessMeasurement of exclusive \({{{\uprho _{}^{}} _{}^{}}{{\left( {770}\right) }{}_{}^{}}} ^{0}\) photoproduction in ultraperipheral pPb collisions at \(\sqrt{\smash [b]{s_{_{\mathrm {NN}}}}} = 5.02\,\text {Te}\text {V} \)
Exclusive \({{{\uprho _{}^{}} _{}^{}}{{\left( {770}\right) }{}_{}^{}}} ^{0}\) ...
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Article
Open AccessElectron reconstruction and identification in the ATLAS experiment using the 2015 and 2016 LHC proton–proton collision data at \(\sqrt{s} = 13\) \(\text {TeV}\)
Algorithms used for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC) are presented in this paper; these algorithms are used in A...
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Article
Open AccessFCC Physics Opportunities
We review the physics opportunities of the Future Circular Collider, covering its e+e-, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the study of ele...
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Article
Open AccessCombined measurements of Higgs boson couplings in proton–proton collisions at \(\sqrt{s}=13\,\text {Te}\text {V} \)
Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton–proton collision data set rec...
