Results 21 to 30 of about 65,259 (237)
Search for the X (2370) and observation of eta(c) -> eta eta eta ' in J/psi -> gamma eta eta eta '
Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a study of J/psi -> gamma eta eta eta' to search for the X(2370) and eta(c) in the eta eta eta' invariant mass distribution. No significant signal for the X(2370) is observed, and we set an upper limit for the product branching fraction of B(J/psi -> gamma X(2370)
Kolcu, Onur Buğra, BESIII Collaboration
openaire +4 more sources
New tests of variability of the speed of light.
We present basic ideas of the varying speed of light cosmology, its formulation, benefits and problems. We relate it to the theories of varying fine structure constants and discuss some new tests (redshift drift and angular diameter distance maximum ...
Dąbrowski Mariusz P. +3 more
doaj +1 more source
chi_c0 and chi_c2 Decays into eta eta, eta eta', and eta' eta' Final States
Using a sample of 3 x 10^6 psi(2S) decays collected by the CLEO III and CLEO_c detector configurations, we present results of a study of _{c0} and _{c2} decays into eta-eta, eta-etaprime, and etaprime-etaprime final states. We find B(chi_{c0} -> eta-eta)= (0.31+-0.05+-0.04+-0.02)%, B(chi_{c0} -> eta-etaprime) <0.05 % at the 90% confidence ...
Adams, G. S., Collaboration, CLEO
openaire +2 more sources
Intramolecular Hydrogen Bond Energy and Its Decomposition—O–H∙∙∙O Interactions
The method to calculate the energy of intramolecular hydrogen bond is proposed and tested for a sample of malonaldehyde and its fluorine derivatives; the corresponding calculations were performed at the ωB97XD/aug-cc-pVTZ level.
Sławomir J. Grabowski
doaj +1 more source
We have revisited glueball mixing with the pseudoscalar mesons in the MIT bag model scheme. The calculation has been performed in the spherical cavity approximation to the bag using two different fermion propagators, the cavity and the free propagators. We obtain a very small probability of mixing for the eta at the level of $0.04-0.1% and a bigger for
Kiesewetter, Simon +1 more
openaire +4 more sources
Data acquisition under cryogenic conditions allows one to avoid unwanted damage caused by beam irradiation. This is particularly important for the study of biological samples at hard X-ray, micro- or nano-probe beamlines, which focus synchrotron ...
Antonio Dominguez-Alfaro +1 more
doaj +1 more source
Este artículo es un estudio sobre el impacto de ETA y grupos afines en La Rioja durante la transición a la democracia. Con el objetivo de radiografiar sus acciones en este territorio se realiza un acercamiento al fenómeno a través de un heterogéneo ...
David Mota Zurdo
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¿Cuál es el rol del Dietista-Nutricionista en el sistema alimentario de 2030?
III Congreso de Alimentación, Nutrición y Dietética. Combinar la nutrición comunitaria y personalizada: nuevos retos.
Goiuri Alberdi Aresti +1 more
doaj +2 more sources
Previous research on applying electronic media learning tools to learning has focused on a diversity of other subjects rather than environmental education.
Benjamin Ayua Ambe +9 more
doaj +1 more source
Recently, a three dimensional metal-organic framework (MOF) based on Dy(III) and the L-tartrate ligand was experimentally shown to exhibit a spin polarization (SP) power of 100% at room temperature.
Xuban Gastearena +4 more
doaj +1 more source

