5,660 research outputs found
Transitions to Nematic states in homogeneous suspensions of high aspect ratio magnetic rods
Isotropic-Nematic and Nematic-Nematic transitions from a homogeneous base
state of a suspension of high aspect ratio, rod-like magnetic particles are
studied for both Maier-Saupe and the Onsager excluded volume potentials. A
combination of classical linear stability and asymptotic analyses provides
insight into possible nematic states emanating from both the isotropic and
nematic non-polarized equilibrium states. Local analytical results close to
critical points in conjunction with global numerical results (Bhandar, 2002)
yields a unified picture of the bifurcation diagram and provides a convenient
base state to study effects of external orienting fields.Comment: 3 Figure
Quark-hadron duality in neutrino scattering
We present a phenomenological model of the quark-hadron transition in
neutrino-nucleon scattering. Using recently extracted weak nucleon transition
form factors, we investigate the extent to which local and global quark-hadron
duality is applicable in the neutrino F_1, F_2 and F_3 structure functions, and
contrast this with duality in electron scattering. Our findings suggest that
duality works relatively well for neutrino-nucleon scattering for the F_2 and
F_3 structure functions, but not as well for F_1. We also calculate the
quasielastic, resonance and deep inelastic contributions to the Adler sum rule,
and find it to be satisfied to within 10% for 0.5 < Q^2 < 2 GeV^2.Comment: 28 pages, 6 figure
Alien Registration- Forest, Clarence A. (Portland, Cumberland County)
https://digitalmaine.com/alien_docs/23854/thumbnail.jp
Book Review
Reviewing Hospital Liability Law: Lectures and Trial Demonstrations, Institute of Continuing Legal Education, 196
New measurement of charge asymmetry from HERA
After presenting the recent measurements of neutral current cross section in
DIS at HERA, we explain the effect of the interference at the
electro-weak scale, visible on these data. Then, the beam charge difference
is measured and the interference itself is extracted. Results are
discussed in the context of perturbative QCD.Comment: 4 pages, 3 figures, proceedings of the International Workshop on
Positrons at Jefferson Lab (March 25-27, 2009), Thomas Jefferson National
Accelerator Facility, Newport News, V
GPDs and DVCS with Positrons
The beam charge asymmetry helps to isolate the real part of the deeply
virtual Compton scattering (DVCS) amplitude. It is discussed what information
can be gained both from the real and imaginary part of the DVCS amplitude.Comment: 5 pages, 2 figures, invited talk at `Workshop on Positrons at
Jefferson Lab
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