Results 31 to 40 of about 264,421 (303)

Constraints on resonant particle production during inflation from the matter and CMB power spectra

open access: yesPhysical Review D, 2004
We analyze the limits on resonant particle production during inflation based upon the power spectrum of fluctuations in matter and the cosmic microwave background. We show that such a model is consistent with features observed in the matter power spectrum deduced from galaxy surveys and damped Lyman-alpha systems at high redshift.
Mathews, G. J.   +4 more
openaire   +2 more sources

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

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

Analyzing Subvisible Particles in Protein Drug Products: a Comparison of Dynamic Light Scattering (DLS) and Resonant Mass Measurement (RMM) [PDF]

open access: yesThe AAPS Journal, 2014
Aggregation is common in protein drug manufacture, and while the effects of protein particulates are under investigation, many techniques applicable for their characterization have been recently developed. Among the methods available to characterize and quantify protein aggregates, none is applicable over the full size range and different methods often
Jainik, Panchal   +3 more
openaire   +2 more sources

Non-factorizable photonic corrections to resonant production and decay of many unstable particles

open access: yesThe European Physical Journal C, 2016
33 pages, pdflatex, 19 pdf ...
Dittmaier, Stefan, Schwan, Christopher
openaire   +3 more sources

Stability and Free Radical Production for CO2 and H2 in Air Nanobubbles in Ethanol Aqueous Solution

open access: yesNanomaterials, 2022
In this study, 8% hydrogen (H2) in argon (Ar) and carbon dioxide (CO2) gas nanobubbles was produced at 10, 30, and 50 vol.% of ethanol aqueous solution by the high-speed agitation method with gas.
Zhenyao Han   +8 more
semanticscholar   +1 more source

Heavy resonance production in high energy nuclear collisions [PDF]

open access: yes, 1994
We estimate freezeout conditions for $s$, $c$, and $b$ quarks in high energy nuclear collisions. Freezeout is due either to loss of thermal contact, or to particles ``wandering'' out of the region of hot matter.
A. Capella   +20 more
core   +2 more sources

Multi-Step Production of a Diphoton Resonance [PDF]

open access: yes, 2016
Among the questions that would be raised by the observation of a new resonance at the LHC, particularly pressing are those concerning the production mechanism: What is the initial state?
B. Dobrescu, P. Fox, John Kearney
semanticscholar   +1 more source

Search for sub-eV axion-like resonance states via stimulated quasi-parallel laser collisions with the parameterization including fully asymmetric collisional geometry

open access: yesJournal of High Energy Physics, 2021
We have searched for axion-like resonance states by colliding optical photons in a focused laser field (creation beam) by adding another laser field (inducing beam) for stimulation of the resonance decays, where frequency-converted signal photons can be ...
The SAPPHIRES collaboration   +13 more
doaj   +1 more source

Resonance enhancement of particle production during reheating [PDF]

open access: yes, 2000
We found a consistent equation of reheating after inflation which shows that for small quantum fluctuations the frequencies of resonance are slighted different from the standard ones.
G. Palma, V. Cárdenas
semanticscholar   +1 more source

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