189 research outputs found
On Statistical Properties of Jizba-Arimitsu Hybrid Entropy
Jizba-Arimitsu entropy (also called hybrid entropy) combines axiomatics of
R\'enyi and Tsallis entropy. It has many common properties with them, on the
other hand, some aspects as e.g., MaxEnt distributions, are completely
different from the former two entropies. In this paper, we demonstrate the
statistical properties of hybrid entropy, including the definition of hybrid
entropy for continuous distributions, its relation to discrete entropy and
calculation of hybrid entropy for some well-known distributions. Additionally,
definition of hybrid divergence and its connection to Fisher metric is also
discussed. Interestingly, the main properties of continuous hybrid entropy and
hybrid divergence are completely different from measures based on R\'enyi and
Tsallis entropy. This motivates us to introduce average hybrid entropy, which
can be understood as an average between Tsallis and R\'enyi entropy
Microcanonical Jet-fragmentation in proton-proton collisions at LHC Energy
In this paper, we show that the distribution of the longitudinal momentum
fraction of charged hadrons inside jets stemming from proton-proton
collisions at = 7 TeV center of mass energy can be described by a
statistical jet-fragmentation model. This model combines microcanonical
statistics and super-statistics induced by multiplicity fluctuations. The
resulting scale dependence of the parameters of the model turns out to be
similar to what was observed in electron-positron annihilations in Urmossy,
Barnaf\"oldi, and Bir\'o.Comment: 7 pages, 8 figure
The temperature-dependent Yang-Mills trace anomaly as a function of the mass gap
The trace anomaly or, equivalently, the interaction measure is the important thermodynamic quantity/observable, since it is very sensitive to the
non-perturbative effects in the gluon plasma. It has been calculated and its analytic and asymptotic properties have been
investigated with the combined force of analytic and lattice approaches to Yang-Mills (YM) quantum gauge theory at finite temperature.
The first one is based on the effective potential approach for composite operators properly generalized
to finite temperature. This makes it possible to introduce into this formalism a dependence
on the mass gap , which is responsible for the large-scale dynamical structure of the QCD ground state.
The gluon plasma pressure as a function of the mass gap adjusted by this approach to the corresponding lattice data is shown to
be a continuously growing function of temperature in the whole temperature range with correct Stefan-Boltzmann
limit at very hight temperature. The corresponding trace anomaly has finite jump discontinuity at some characteristic
temperature with latent heat . This is a firm evidence of the first-order phase transition
in pure gluon plasma
Testing a Possible Way of Geometrization of the Strong Interaction by a Kaluza-Klein Star
Geometrization of the fundamental interactions has been extensively studied
during the century. The idea of introducing compactified spatial dimensions
originated by Kaluza and Klein. Following their approach, several model were
built representing quantum numbers (e.g. charges) as compactified space-time
dimensions. Such geometrized theoretical descriptions of the fundamental
interactions might lead us to get closer to the unification of the principle
theories.
Here, we apply a dimensional theory, which contains one extra
compactified spatial dimension in connection with the flavour quantum
number in Quantum Chromodynamics. Within our model the size of the
dimension is proportional to the inverse mass-difference of the first low-mass
baryon states. We used this phenomena to apply in a compact star model -- a
natural laboratory for testing the theory of strong interaction and the
gravitational theory in parallel.
Our aim is to test the modification of the measurable macroscopical
parameters of a compact Kaluza-Klein star by varying the size of the
compactified extra dimension. Since larger the the smaller the mass
difference between the first spokes of the Kaluza-Klein ladder resulting
smaller-mass stars. Using the Tolman-Oppenheimer-Volkov equation, we
investigate the - diagram and the dependence of the maximum mass of
compact stars. Besides testing the validity of our model we compare our results
to the existing observational data of pulsar properties for constraints.Comment: 10 pages, 2 figure
Variations in Fertility - a Consequense of Other Factors Besides Love?
The purpose of this paper is to discuss possible explanations for the variation in the Swedish fertility rate. We are primarily interested in economic and social conditions and their impact on the total fertility rate between 1965 and 2003. The results from the study support a positive e€ect on fertility from the female labour market participation and child allowance while divorces report a negative e€ect on fertility. The model including level as well as di€erences in the variables has been found to give the best results.Total fertility rate; Economics; Sweden; Time-series
Swedish Family Policy, Fertility and Female Wages
Recent demographic literature shows in Swedish micro-level data a positive effect of female wage income or female education on fertility. The literature explains this finding with Swedish family policies of high subsidies for bought-in child care and generous parental leave benefits that are calculated on the basis of a woman's prior wage income. Both policies would cause the substitution effect from an increase in female wages on fertility to be dominated by its income effect. This paper shows within an economic model that there are offsetting effects from Swedish family policy that cause the reduction in the magnitude of the substitution effect of female wages to be most likely rather small.Fertility; family policy; gender equality.
Recommended from our members
Inclusive J/Ï production at mid-rapidity in pp collisions at âs = 5.02 TeV
Inclusive J/Ï production is studied in minimum-bias proton-proton collisions at a centre-of-mass energy of s = 5.02 TeV by ALICE at the CERN LHC. The measurement is performed at mid-rapidity (|y| < 0.9) in the dielectron decay channel down to zero transverse momentum pT, using a data sample corresponding to an integrated luminosity of Lint = 19.4 ± 0.4 nbâ1. The measured pT-integrated inclusive J/Ï production cross sec- tion is dÏ/dy = 5.64 ± 0.22(stat.) ± 0.33(syst.) ± 0.12(lumi.) ÎŒb. The pT-differential cross section d2Ï/dpTdy is measured in the pT range 0â10 GeV/c and compared with state-of- the-art QCD calculations. The J/Ï ăpTă and ăpT2ă are extracted and compared with results obtained at other collision energies. [Figure not available: see fulltext.]
Study on Bond Strength of Alccofine Based Normal and High Strength Concrete
Plenty of research works in India and abroad focusing on the reuse or recycling of waste materials from many industries. Among that finding out suitable cementitious material for the replacement of cement is significant. Many waste materials such as fly ash, silica fume, GGBS, metakaoline, micro materials, quartz power, etc. are tried out for replacing partially or full of cement in concrete. A new ultrafine material called Alccofine is tried out for replacing partially in this research. M20 and M60 grade of concrete is intended to study the performance of normal and high strength concrete by replacing the cement with alccofine of different dosages. Previous researches showed that the replacement of alccofine increases the strength. Design mix made for M20 and M60 grade and cubes casted with various percentage of alccofine with cement. Hence the study is aimed to assess the bond behavior of M20 and M60 grade of concrete structures as an alternate to the conventional materials. The cubes are prepared initially for the design mix and determined the strength of concrete. Then specimens are prepared for the bond test and tested using pullout test methods. The results are analyzed and observed that the bond strength is increased with increase of alccofine replacement to certain dosage.
Bond Strength of Chemical Anchor in High-Strength Concrete
AbstractThis paper summarizes the results of experimental and numerical research focused on determination of the behavior and bond strength limits of what are currently the most widespread industrial glues used for anchor bonding. The goal of this research is to find the limits of the effective use of such glue types in high performance concrete, and also to verify the most commonly used design methods for bonded anchors. The progress and configuration of the experiments are described. The goal of this research is to find the limits of effective use of these glue types in high performance concrete and also verification of mostly used design methods. The article is closely focused on bond strength experiments using high strength concrete up to class C50/60 or higher
- âŠ