Results 11 to 20 of about 7,052,915 (349)

Inferring the Nominal Molecular Mass of an Analyte from Its Electron Ionization Mass Spectrum. [PDF]

open access: yesAnal Chem, 2023
The performance of three algorithms for predicting nominal molecular mass from an analyte’s electron ionization mass spectrum are presented. The Peak Interpretation Method (PIM) attempts to quantify the likelihood that a molecular ion peak is contained ...
Moorthy AS   +4 more
europepmc   +2 more sources

Gas Quantitative Analysis Method of Online Process Mass Spectrometry Based on Separation of Overlapping Spectral Peaks [PDF]

open access: yesZhipu Xuebao, 2023
Online quantitative analysis of the reaction gas or tail gas of industrial production process can help to adjust the production process and improve product quality in time, which is of great significance to the transformation and upgrading of the ...
WEI Fu-qiang1   +5 more
doaj   +1 more source

New Structures in the J/ψJ/ψ Mass Spectrum in Proton-Proton Collisions at sqrt[s]=13  TeV. [PDF]

open access: yesPhysical Review Letters, 2023
A search is reported for near-threshold structures in the J/ψJ/ψ invariant mass spectrum produced in proton-proton collisions at sqrt[s]=13  TeV from data collected by the CMS experiment, corresponding to an integrated luminosity of 135  fb^{-1}.
A. Hayrapetyan   +499 more
semanticscholar   +1 more source

Quantitative analysis of reaction gases or exhaust using an online process mass spectrometer [PDF]

open access: yesMetrology and Measurement Systems, 2023
Online quantitative analysis of reaction gases or exhaust in industrial production is of great significance to improve the production capacity and process.Anovel method is developed for the online quantitative analysis of reaction gases or exhaust using ...
Fu-Qiang Wei   +5 more
doaj   +1 more source

Resolving the Peak of the Black Hole Mass Spectrum [PDF]

open access: yesAstrophysical Journal, 2022
Gravitational-wave (GW) detections of binary black hole (BH) mergers have begun to sample the cosmic BH mass distribution. The evolution of single stellar cores predicts a gap in the BH mass distribution due to pair-instability supernovae (PISNe ...
E. Farag   +4 more
semanticscholar   +1 more source

Exciton properties in 2D-Xenes nanomaterials within quantum field approaches [PDF]

open access: yesJournal of Particle Science and Technology, 2021
There have been substantial theoretical advances in the field of condensed matter physics in recent years. These significant developments have spanned many different principles.
Arezu Jahanshir
doaj   +1 more source

Observation of structure in the J/ψ-pair mass spectrum. [PDF]

open access: yesScience Bulletin, 2020
Using proton-proton collision data at centre-of-mass energies of s=7,8 and 13TeV recorded by the LHCb experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 9fb-1, the invariant mass spectrum of J/ψ pairs is studied.
L. C. R. Aaij   +499 more
semanticscholar   +1 more source

Tetraquark candidates in LHCb's di-J/ψ mass spectrum [PDF]

open access: yesChinese Physics C, High Energy Physics & Nuclear Physics, 2020
In this article, we study the first radial excited states of the scalar, axialvector, vector, and tensor diquark-antidiquark-type tetraquark states with the QCD sum rules and obtain the masses and pole residues; then, we use the Regge trajectories to ...
Z. Wang 王
semanticscholar   +1 more source

Production of beams of multi-charged iron ions 56Fe with energy 0.64 - 7.92 MeV for irradiation of construction materials [PDF]

open access: yesЯдерна фізика та енергетика, 2020
n the paper, a possibility of multiply charged 56Fe ions beams formation for imitation irradiation of reactor materials with using the IAP NASU accelerator mass spectrometer is considered.
V. B. Moskalenko   +2 more
doaj   +1 more source

Computational method for determining the bound state oscillator frequency [PDF]

open access: yesMathematics and Computational Sciences, 2021
Creation and annihilation operator’s method that is associated with the system was proposed to determine the oscillator frequency of the bound system which consists of two or more particles, as a function of the orbital quantum number, which is the main ...
A Jahanshir, A Tarasenka
doaj   +1 more source

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