3,694 research outputs found
CALICE ScECAL Beam Test at Fermilab
The scintillator-strip electromagnetic calorimeter (ScECAL) is one of the
calorimeter technologies which can achieve fine granularity required for the
particle flow algorithm. Second prototype of the ScECAL has been built and
tested with analog hadron calorimeter (AHCAL) and tail catcher (TCMT) in
September 2008 at Fermilab meson test beam facility. Data are taken with 1 to
32 GeV of electron, pion and muon beams to evaluate all the necessary
performances of the ScECAL, AHCAL and TCMT system. This manuscript describes
overview of the beam test and very preliminary results focusing on the ScECAL
part.Comment: proceedings on ILCWS0
Optical Diffraction from Fractals with a Structural Transition
A macroscopic characterization of fractals showing up a structural transition
from dense to multibranched growth is made using optical diffraction theory.
Such fractals are generated via the numerical solution of the 2D Poisson and
Biharmonic equations and are compared to more 'regular'irreversible clusters
such as diffusion limited and Laplacian aggregates. The optical diffraction
method enables to identify a decrease of the fractal dimension above the
structural point.Comment: LaTex file; 6 figures upon request to [email protected]**.
IC/94/7
Core-Level X-Ray Photoemission Satellites in Ruthenates: A New Mechanism Revealing the Mott Transition
Ru 3d core-level x-ray photoemission spectra of various ruthenates are
examined. They show in general two-peak structures, which can be assigned as
the screened and unscreened peaks. The screened peak is absent in a Mott
insulator, but develops into a main peak in the metallic regime. This spectral
behavior is well explained by the dynamical mean-field theory calculation for
the single-band Hubbard model with on-site core-hole potential using the exact
diagonalization method. The new mechanism of the core-level photoemission
satellite can be utilized to reveal the Mott transition phenomenon in various
strongly correlated electron systems, especially in nano-scale devices and
phase-separated materials.Comment: 4 pages, 5 figures, submitted to PR
Organic agriculture and teikei in Japan after nuclear plant explosion in March, 2011
The contamination of radioactive matters to the fields by nuclear accident gave severe damage to organic farming because it put importance on the safety and environment. Besides the loss of income, there were various uncountable damages that cannot be easily compensated. Under such severe situation, various supports among organic farmers and between consumers were tried
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