AP) -- Scientists who have pursued dark matter, hunted for undiscovered planets and advanced nanotechnology were being touted Monday as candidates for the 2008 Nobel Prize in physics.
AP) -- A bad electrical connection likely caused the malfunction that sidelined the world's largest atom smasher days after it was launched with great fanfare, a senior scientist said Monday.
We present the interpretation that the recently discovered Z^+(4430) by theBelle Collaboration can be a radial excitation of the cs-bar state. We give anexplicit cs-bar candidate for this state by calculating the mass value in oursemirelativistic quark potential model and
Using the dual string theory, we study a circular baryonic configuration in awind of strongly coupled N=4 Yang-Mills plasma blowing in the plane of thebaryon, before and after a quark has dissociated from it. A simple enough modelthat captures many
We discuss the role of instantons in the spectroscopy of ordinary and exotichadrons as well as in high energy reactions. We argue that the instantoninduced flavor- and spin-dependent quark-quark and quark-gluon interactions canexplain many features of the hadron spectrum. The
It is important to understand, in detail, two-pion correlations measured inp+p and d+A collisions. In particular, one wishes to understand the femtoscopiccorrelations, in order to compare to similar measurements in heavy ioncollisions. However, in the low-multiplicity final states of these
We have extended the density matrix renormalization group (DMRG) approach totwo-fluid open many-fermion systems governed by complex-symmetric Hamiltonians.The applications are carried out for three- and four-nucleon (proton-neutron)systems within the Gamow Shell Model (GSM) in the complex-energy plane. Westudy necessary and
Based on the previous work in [Y. Jiang, Y.M. Shi, H.T. Feng, W.M. Sun andH.S. Zong, Phys. Rev. C {\bf 78}, 025214 (2008)] on the quark-meson vertex andpion properties at finite quark chemical potential, we provide an analyticalanalysis of the
We introduce the no-core full configuration (NCFC) approach and presentresults for $^4$He, $^{12}$C and $^{14}$F with the realistic NN interaction,JISP16. We obtain ground state energies and their uncertainties throughexponential extrapolations that we demonstrate are reliable in $^4$He wherefully converged results
The Gamow states describe the quasinormal modes of quantum systems. It isshown that the resonance amplitude associated with the Gamow states is given bythe complex delta function. It is also shown that under the near-resonanceapproximation of neglecting the lower bound
We study the binding energies and radii of spin saturated light nuclei withnucleon number in the range $8 \le A \le 30$ in the framework of semiclassicalMonte Carlo many-body simulations. Using a model Hamiltonian consisting of theusual kinetic term, hadronic
In March 2008 anomalous behavior in spacecraft flybys of Earth was reportedin Physical Review Letters in an article titled Anomalous Orbital-EnergyChanges Observed during Spacecraft Flybys of Earth. That report wassubsequently analyzed and explained in the paper Analysis of The AnomalousOrbital-Energy
We present definitions and formulas that may be useful for a consistentcomputation of helicity amplitudes for the process gamma* N -> N* intheoretical approaches. Of particular importance is the correct determinationof the common sign of the amplitudes and of the
The cosmological scale factor $a(t)$ of the flat-space Robertson-Walkergeometry is examined from a Hamiltonian perspective wherein $a(t)$ isinterpreted as an independent dynamical coordinate and the curvature density$\sqrt {- g(a)} R({a,\dot a,\ddot a})$ is regarded as an action density inMinkowski spacetime.
We present an original engine, developed in Microsoft C#.NET, forimplementing the simulation of three-dimensional, relativistic many-bodysystems. Based on the object oriented programming principles and a moderntechnology, the main goal was to provide both flexibility and a framework whichenforces a proper
We consider construction of empirical formulas for predicting new averagedexperimental data from a finite number of the old ones so as to point out therelevant technical problems. The main problem is that there is always only afinite number of inaccurate
The underlying mechanism of the stationary light pulse (SLP) was identifiedas a band gap being created by a Bragg grating formed by twocounter-propagating coupling fields of similar wavelength. Here we present amore general view of the formation of SLPs, namely
The equivalent permeability of a randomly cracked porous material is studiedusing a finite element program in which a four-nodes zero-thickness element isimplemented for modelling the cracks. The numerical simulations are performedfor geometries with different cracks densities and for different values
Quantum mechanics thinks that all atoms do not have permanent electric dipolemoment (EDM) because of their spherical symmetry. Therefore, there is no polaratom in nature except for polar molecules. The electric susceptibility Xecaused by the orientation of polar substances is
In this work we present a simple and fast computational method, thevisibility algorithm, that converts a time series into a graph. The constructedgraph inherits several properties of the series in its structure. Thereby,periodic series convert into regular graphs, and random