Results 11 to 20 of about 2,821,806 (233)

Search for new phenomena in multi-body invariant masses in events with at least one isolated lepton and two jets using s $$ \sqrt{s} $$ = 13 TeV proton–proton collision data collected by the ATLAS detector

open access: yesJournal of High Energy Physics, 2023
A search for resonances in events with at least one isolated lepton (e or μ) and two jets is performed using 139 fb −1 of s $$ \sqrt{s} $$ = 13 TeV proton–proton collision data recorded by the ATLAS detector at the LHC. Deviations from a smoothly falling
The ATLAS collaboration   +2935 more
doaj   +1 more source

Measurement of e + e − → ωπ + π − cross section at s $$ \sqrt{s} $$ = 2.000 to 3.080 GeV

open access: yesJournal of High Energy Physics, 2023
A partial wave analysis on the process e + e − → ωπ + π − is performed using 647 pb −1 of data sample collected by using the BESIII detector operating at the BEPCII storage ring at center-of-mass (c.m.) energies from 2.000 GeV to 3.080 GeV.
The BESIII collaboration   +550 more
doaj   +1 more source

Search for sub-eV axion-like particles in a stimulated resonant photon-photon collider with two laser beams based on a novel method to discriminate pressure-independent components

open access: yesJournal of High Energy Physics, 2022
Sub-eV axion-like particles (ALPs) have been searched for by focusing two-color near-infrared pulse lasers into a vacuum along a common optical axis. Within the focused quasi-parallel collision system created by combining a creation field (2.5 mJ/47 fs ...
The SAPPHIRES collaboration   +14 more
doaj   +1 more source

Measurement of the Z boson differential production cross section using its invisible decay mode (Z → ν ν ¯ $$ \nu \overline{\nu} $$ ) in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2021
Measurements of the total and differential fiducial cross sections for the Z boson decaying into two neutrinos are presented at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV.
The CMS collaboration   +2326 more
doaj   +1 more source

Study of η(1405)/η(1475) in J / ψ → γ K S 0 K S 0 π 0 $$ J/\psi \to \gamma {K}_S^0{K}_S^0{\pi}^0 $$ decay

open access: yesJournal of High Energy Physics, 2023
Using a sample of (10.09 ± 0.04) × 109 J/ψ decays collected with the BESIII detector, partial wave analyses of the decay J / ψ → γ K S 0 K S 0 π 0 $$ J/\psi \to \gamma {K}_S^0{K}_S^0{\pi}^0 $$ are performed within the K S 0 K S 0 π 0 $$ {K}_S^0{K}_S^0 ...
The BESIII collaboration   +575 more
doaj   +1 more source

Measurements of the pp → W± γγ and pp → Zγγ cross sections at s $$ \sqrt{\mathrm{s}} $$ = 13 TeV and limits on anomalous quartic gauge couplings

open access: yesJournal of High Energy Physics, 2021
The cross section for W or Z boson production in association with two photons is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV.
The CMS collaboration   +2337 more
doaj   +1 more source

Determination of the strong coupling constant α S(mZ) from measurements of inclusive W ± and Z boson production cross sections in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 7 and 8 TeV

open access: yesJournal of High Energy Physics, 2020
Twelve measurements of inclusive cross sections of W ± and Z boson production, performed in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, are compared with perturbative quantum chromodynamics calculations at next-to-next- to-leading
The CMS collaboration   +2295 more
doaj   +1 more source

Measurement of e+e − → K+K − π 0 cross section and observation of a resonant structure

open access: yesJournal of High Energy Physics, 2022
Based on e + e − collision data collected by the BESIII detector at the BEPCII collider at center-of-mass energies from 2.000 to 3.080 GeV, a partial-wave analysis is performed for the process e + e − → K + K − π 0.
The BESIII collaboration   +541 more
doaj   +1 more source

Measurement of the branching fraction of J/ψ → ρπ at KEDR

open access: yesJournal of High Energy Physics, 2023
We present the study of the decay J/ψ → ρπ. The results are based on of 5.2 million J/ψ events collected by the KEDR detector at the VEPP-4M collider.
The KEDR collaboration   +94 more
doaj   +1 more source

Reheating in the Presence of Noise [PDF]

open access: yes, 1997
Explosive particle production due to parametric resonance is a crucial feature of reheating in inflationary cosmology. Coherent oscillations of the inflaton field act as a periodically varying mass in the evolution equation for matter fields which couple
Brandenberger, R.   +3 more
core   +2 more sources

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