Results 41 to 50 of about 2,297,493 (345)

Renormalized spectrum of quasiparticle in limited number of states, strongly interacting with two-mode polarization phonons at T=0 K

open access: yesCondensed Matter Physics, 2021
Within unitary transformed Hamiltonian of Fröhlich type, using the Green's functions method, exact renormalized energy spectrum of quasiparticle strongly interacting with two-mode polarization phonons is obtained at T=0 K in a model of the system with ...
M.V. Tkach   +3 more
doaj   +1 more source

Synthesis and investigation of mass spectra of some novel benzimidazole derivatives

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2008
2-Substituted benzimidazoles (3) and (4a-c) were prepared via condensation of ethyl 2-thionyl-pyruvate (1) and hydrazidoyl derivatives (2a-c) with o-phenylene diamine in acetic acid.
Hassan K. Ibrahim   +3 more
doaj   +1 more source

ppbar enhancement in B and J/Psi decay

open access: yes, 2006
The near-threshold enhancement in the ppbar invariant mass spectrum from the B^+ -> K^+ ppbar decay reported recently by the BaBar Collaboration is studied within the J\"ulich NNbar model.
A. Sibirtsev   +3 more
core   +1 more source

Analysis of hadronic invariant mass spectrum in inclusive charmless semileptonic B decays [PDF]

open access: yes, 1998
We make an analysis of the hadronic invariant mass spectrum in inclusive charmless semileptonic B meson decays in a QCD-based approach. The decay width is studied as a function of the invariant mass cut.
A. Bareiss   +27 more
core   +2 more sources

On mass spectrum in SQCD. Unequal quark masses [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 2010
17 pages, small improvements; also replaced the paper arXiv:0712.3167, with significant ...
openaire   +2 more sources

Contributions to the Interpretation of Mass Spectrum of Octaethoxycyclotetrasiloxane: Linked Scansand Isotopic Effects

open access: yesProceedings, 2019
The aim of this article is the study of the fragmentation reactions of octaethoxycyclotetrasiloxane (CTET) initiated by electronic impact in the ionization chamber of a double focusing mass spectrometer. [...]
Virgil Badescu
doaj   +1 more source

Mass spectrum and thermodynamics of quasi-conformal gauge theories from gauge/gravity duality

open access: yes, 2011
We use gauge/gravity duality to study simultaneously the mass spectrum and the thermodynamics of a generic quasi-conformal gauge theory, specified by its beta function.
Alanen, J.   +3 more
core   +1 more source

The Perils of Clumpfind: The Mass Spectrum of Sub-structures in Molecular Clouds [PDF]

open access: yes, 2009
We study the mass spectrum of sub-structures in the Perseus Molecular Cloud Complex traced by 13CO (1-0), finding that $dN/dM\propto M^{-2.4}$ for the standard Clumpfind parameters.
Alyssa A. Goodman   +23 more
core   +2 more sources

Covariance of the One-Dimensional Mass Power Spectrum [PDF]

open access: yes, 2004
We analyse the covariance of the one-dimensional mass power spectrum along lines of sight. The covariance reveals the correlation between different modes of fluctuations in the cosmic density field and gives the sample variance error for measurements of ...
Eisenstein, Daniel, Zhan, Hu
core   +1 more source

Ultra-High-Performance Liquid Chromatography–Electrospray Ionization–High-Resolution Mass Spectrometry for Distinguishing the Origin of Ellagic Acid Extracts: Pomegranate Peels or Gallnuts

open access: yesMolecules
Ellagic acid, known for its various biological activities, is widely used. Ellagic acid from pomegranate peels is safe for consumption, while that from gallnuts is only suitable for external use. However, there is currently no effective method to confirm
Jinchao Wei   +5 more
doaj   +1 more source

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