99,730 research outputs found
Number of states for nucleons in a single- shell
In this paper we obtain number of states with a given spin and a given
isospin for systems with three and four nucleons in a single- orbit, by
using sum rules of six- and nine- symbols obtained in earlier works.Comment: to be published in Physical Review
Heat conduction in graphene flakes with inhomogeneous mass interface
Using nonequilibrium molecular dynamics simulations, we study the heat
conduction in graphene flakes composed by two regions. One region is
mass-loaded and the other one is intact. It is found that the mass interface
between the two regions greatly decreases the thermal conductivity, but it
would not bring thermal rectification effect. The dependence of thermal
conductivity upon the heat flux and the mass difference ratio are studied to
confirm the generality of the result. The interfacial scattering of solitons is
studied to explain the absence of rectification effect.Comment: 5 pages, 4 figure
Radiation Hardness and Linearity Studies of CVD Diamonds
We report on the behavior of CVD diamonds under intense electromagnetic
radiation and on the response of the detector to high density of deposited
energy. Diamonds have been found to remain unaffected after doses of 10 MGy of
MeV-range photons and the diamond response to energy depositions of up to 250
GeV/cm^3 has been found to be linear to better than 2 %. These observations
make diamond an attractive detector material for a calorimeter in the very
forward region of the detector proposed for TESLA.Comment: 4 pages, 5 figures; Proceeding for the topical Seminar on Innovative
Particle and Radiation Detectors Siena, 21-24 October 2002; to appear in
Nucl.Phys. B (Proceedings Supplement
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