1,780 research outputs found
ATLAS sensitivity range for the x_s measurement
Previous results for the prospects of B_s mixing measurement in the ATLAS
experiment at LHC are updated. The improved analysis method of the studied
decay channels B_s -> D_s pi and B_s -> D_s a_1, combined with most recent
values for the branching ratios and the B_s lifetime, leads to the new ATLAS
sensitivity range for the x_s measurement: x_s^{max} = 42. An extensive study
is done in order to estimate how x_s^{max} is influenced by the B-decay
proper-time resolution of the vertex detector, as well as by the number of
events and by the signal-to-background ratio.Comment: 17 pages, incl. 12 figure
Nonequilibrium thermodynamics versus model grain growth: derivation and some physical implications
Nonequilibrium thermodynamics formalism is proposed to derive the flux of
grainy (bubbles-containing) matter, emerging in a nucleation growth process.
Some power and non-power limits, due to the applied potential as well as owing
to basic correlations in such systems, have been discussed. Some encouragement
for such a discussion comes from the fact that the nucleation and growth
processes studied, and their kinetics, are frequently reported in literature as
self-similar (characteristic of algebraic correlations and laws) both in basic
entity (grain; bubble) size as well as time scales.Comment: 8 pages, 1 figur
Thermo-kinetic approach of single-particles and clusters involving anomalous diffusion under viscoelastic response
We present a thermo-kinetic description of anomalous diffusion of
single-particles and clusters in a viscoelastic medium in terms of a
non-Markovian diffusion equation involving memory functions. The scaling
behaviour of these functions is analyzed by considering hydrodynamics and
cluster-size space random walk arguments. We explain experimental results on
diffusion of Brownian particles in the cytoskeleton, in cluster-cluster
aggregation and in a suspension of micelles.Comment: To be published in the Journal of Physical Chemistry
Finite-size effects in intracellular microrheology
We propose a model to explain finite-size effects in intracellular
microrheology observed in experiments. The constrained dynamics of the
particles in the intracellular medium, treated as a viscoelastic medium, is
described by means of a diffusion equation in which interactions of the
particles with the cytoskeleton are modelled by a harmonic force. The model
reproduces the observed power-law behavior of the mean-square displacement in
which the exponent depends on the ratio between
particle-to-cytoskeleton-network sizes.Comment: 6 pages 2 figures. To appear in the Journal of Chemical Physic
On temperature- and space-dimension dependent matter agglomeration in a mature growing stage
Model matter agglomerations, with temperature as leading control parameter,
have been considered, and some of their characteristics have been studied. The
primary interest has been focused on the grain volume fluctuations, the
magnitude of which readily differentiates between two commonly encountered
types of matter agglomeration/aggregation processes, observed roughly for high-
and low-density matter organizations. The two distinguished types of matter
arrangements have been described through the (entropic) potential driving
system. The impact of the potential type on the character of matter
agglomeration has been studied, preferentially for (low density) matter
agglomeration for which a logarithmic measure of its speed has been proposed. A
common diffusion as well as mechanical relaxation picture, emerging during the
mature growing stage, has been drawn using a phenomenological line of
argumentation. Applications, mostly towards obtaining soft agglomerates of
so-called jammed materials, have been mentioned
Evaluation of Muscle Imbalances and the Presence of Upper- and Lower-Crossed Syndromes among Powerlifters
Please view abstract in the attached PDF fil
AC-coupled GaAs microstrip detectors with a new type of integrated bias resistors
Full size single-sided GaAs microstrip detectors with integrated coupling
capacitors and bias resistors have been fabricated on 3'' substrate wafers.
PECVD deposited SiO_2 and SiO_2/Si_3N_4 layers were used to provide coupling
capacitaces of 32.5 pF/cm and 61.6 pF/cm, respectively. The resistors are made
of sputtered CERMET using simple lift of technique. The sheet resistivity of 78
kOhm/sq. and the thermal coefficient of resistance of less than 4x10^-3 /
degree C satisfy the demands of small area biasing resistors, working on a wide
temperature range.Comment: 20 pages, 9 figures, to be published in NIM
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