Results 81 to 90 of about 78,220 (203)

Measurement of the four-lepton invariant mass spectrum in 13 TeV proton-proton collisions with the ATLAS detector

open access: yesJournal of High Energy Physics, 2019
A measurement of the four-lepton invariant mass spectrum is made with the ATLAS detector, using an integrated luminosity of 36.1 fb−1 of proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV delivered by the Large Hadron Collider.
The ATLAS collaboration   +2944 more
doaj   +1 more source

Matter in extremis: ultrarelativistic nuclear collisions at RHIC

open access: yes, 2004
We review the physics of nuclear matter at high energy density and the experimental search for the Quark-Gluon Plasma at the Relativistic Heavy Ion Collider (RHIC).
Jacobs, Peter, Wang, Xin-Nian
core   +5 more sources

Ferrites with a Minimized Secondary Electron Yield

open access: yesAdvanced Science, Volume 12, Issue 10, March 13, 2025.
Ferrites are a key material in particle accelerators and space science, exposing them to high energy electrons and leading to multipacting, charging and electron cloud formation. Laser engineered surface structures are shown to dramatically reduce the secondary electron yield of ferrite eliminating these issues.
Robin Uren   +10 more
wiley   +1 more source

Measurement of inclusive jet and dijet cross-sections in proton-proton collisions at s=13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2018
Inclusive jet and dijet cross-sections are measured in proton-proton collisions at a centre-of-mass energy of 13 TeV. The measurement uses a dataset with an integrated luminosity of 3.2 fb−1 recorded in 2015 with the ATLAS detector at the Large Hadron ...
The ATLAS collaboration   +2903 more
doaj   +1 more source

Search for new phenomena in events with two opposite-charge leptons, jets and missing transverse momentum in pp collisions at s $$ \sqrt{\mathrm{s}} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2021
The results of a search for direct pair production of top squarks and for dark matter in events with two opposite-charge leptons (electrons or muons), jets and missing transverse momentum are reported, using 139 fb −1 of integrated luminosity from proton-
The ATLAS collaboration   +2936 more
doaj   +1 more source

Low-x QCD physics from RHIC and HERA to the LHC [PDF]

open access: yes, 2006
We present a summary of the physics of gluon saturation and non-linear QCD evolution at small values of parton momentum fraction $x$ in the proton and nucleus in the context of recent experimental results at HERA and RHIC.
Accardi   +34 more
core   +2 more sources

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

open access: yesAstronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge   +3 more
wiley   +1 more source

Visible GeV ALP from TeV Vector‐Like Leptons

open access: yesFortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi   +2 more
wiley   +1 more source

Search for supersymmetry in final states with charm jets and missing transverse momentum in 13 TeV pp collisions with the ATLAS detector

open access: yesJournal of High Energy Physics, 2018
A search for supersymmetric partners of top quarks decaying as t˜1→cχ˜10 $$ {\tilde{t}}_1\to c{\tilde{\upchi}}_1^0 $$ and supersymmetric partners of charm quarks decaying as c˜1→cχ˜10 $$ {\tilde{c}}_1\to c{\tilde{\upchi}}_1^0 $$, where χ˜10 $$ {\tilde ...
The ATLAS collaboration   +2900 more
doaj   +1 more source

Search for charged Higgs bosons decaying into a top quark and a bottom quark at s $$ \sqrt{\mathrm{s}} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2021
A search for charged Higgs bosons decaying into a top quark and a bottom quark is presented. The data analysed correspond to 139 fb −1 of proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV, recorded with the ATLAS detector at the LHC.
The ATLAS collaboration   +2936 more
doaj   +1 more source

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