Results 21 to 30 of about 2,032 (124)
ROBL‐II at ESRF: a synchrotron toolbox for actinide research
ROBL‐II at ESRF provides four experimental stations to investigate actinides with X‐ray absorption and emission spectroscopy, and with surface, high‐resolution powder, and single‐crystal X‐ray diffractometry.ROBL‐II provides four different experimental stations to investigate actinide and other alpha‐ and beta‐emitting radionuclides at the new EBS ...
Andreas C. Scheinost +16 more
wiley +1 more source
Nuclear Charge Radii of the Nickel Isotopes $^{58-68,70}$Ni [PDF]
Collinear laser spectroscopy is performed on the nickel isotopes Ni58-68,70, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii Rc are extracted and compared to theoretical results.
Yordanov, D. +155 more
core +1 more source
Nuclear matter saturation in a relativistic chiral theory and QCD susceptibilities [PDF]
We study a chiral relativistic theory of nuclear matter aimed at the desciption of both the binding and saturation properties and the QCD properties, quark condensate and QCD susceptibilities.
Ericson, Magda +2 more
core +2 more sources
QUARK MEAN-FIELD THEORY AND CONSISTENCY WITH NUCLEAR-MATTER [PDF]
1/N(c) expansion in QCD (with N(c) the number of colors) suggests using a potential from meson sector (e.g., Richardson) for baryons. For light quarks a sigma-field has to be introduced to ensure chiral symmetry breaking (chi-SB).
Tomio, Lauro [UNESP] +10 more
core +1 more source
Screening Effects in Superfluid Nuclear and Neutron Matter within Brueckner Theory [PDF]
8 pages, 6 Postscript figures - PTHEffects of medium polarization are studied for $^1S_0$ pairing in neutron and nuclear matter. The screening potential is calculated in the RPA limit, suitably renormalized to cure the low density mechanical instability ...
Cao, L.G., Schuck, P., Lombardo, U.
core +1 more source
Chiral symmetry and quantum hadro-dynamics [PDF]
Using the linear sigma model, we study the evolutions of the quark condensate and of the nucleon mass in the nuclear medium. Our formulation of the model allows the inclusion of both pion and scalar-isoscalar degrees of freedom.
Ericson, Magda +4 more
core +1 more source
Critical fluctuations of the quark density in nuclei [PDF]
We study the static scalar susceptibility of the nuclear medium, i.e., the change of the quark condensate for a small modification of the quark mass.In the linear sigma model it is linked to the in-medium sigma propagator.Near the critical density for ...
Ericson, Magda +2 more
core +1 more source
The role of the Roper in chiral perturbation theory [PDF]
We include the Roper excitation of the nucleon in a version of heavy-baryon chiral perturbation theory recently developed for energies around the delta resonance. We find significant improvement in the P(11) channel. (C) 2011 Elsevier B.V.
U. van Kolck +4 more
core +1 more source
Understanding the SN2 Versus E2 Competition
We provide an intuitive framework rooted in quantitative molecular orbital theory to understand the factors that govern the competition between the SN2 and E2 reaction pathways. The guiding concepts are: characteristic distortivity, transition state acidity, intrinsic nucleophilicity, and apparent nucleophilicity.
Pascal Vermeeren +3 more
wiley +1 more source
Interplay between QCD and nuclear responses [PDF]
We establish the interrelation between the QCD scalar response of the nuclear medium and its response to a scalar probe coupled to nucleons, such as the scalar meson responsible for the nuclear binding.
Chanfray, G. +3 more
core

