article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
|---|---|---|
physics0006018 | excited states of the hydrogen molecule subject to a homogeneous magnetic field are investigated for the parallel configuration in the complete regime of field strengths @xmath0 . up to seven excitations are studied for gerade as well as ungerade spin singlet states of @xmath1 symmetry with a high accuracy . the evolut... | 123 |
1604.04128 | in this paper we present a method of scintillation detector energy calibration using the gamma - rays . the technique is based on the compton scattering of gamma - rays in a scintillation detector and subsequent photoelectric absorption of the scattered photon in the ge - detector . the novelty of this method is that t... | 147 |
hep-th9902138 | we give a noncommutative version of the complex projective space @xmath0 and show that scalar qft on this space is free of uv divergencies . the tools necessary to investigate quantum fields on this fuzzy @xmath0 are developed and several possibilities to introduce spinors and dirac operators are discussed . h. grosse@... | 113 |
hep-ph0512272 | we analyse the present experimental evidence for a complex ckm matrix , even allowing for new physics contributions to @xmath0 , @xmath1 , @xmath2 , @xmath3 , and the @xmath4 piece of @xmath5 and @xmath6 . we emphasize the crucial rle played by the angle @xmath7 in both providing irrefutable evidence for a 3@xmath83 co... | 205 |
1008.1977 | the problem of guessing a random string is revisited . a close relation between guessing and compression is first established . then it is shown that if the sequence of distributions of the information spectrum satisfies the large deviation property with a certain rate function , then the limiting guessing exponent exi... | 131 |
1104.4998 | in this paper we study the inverse dirichlet - to - neumann problem for certain cylindrical electrical networks . we define and study a birational transformation acting on cylindrical electrical networks called the electrical @xmath0-matrix . we use this transformation to formulate a general conjectural solution to thi... | 111 |
0705.0272 | we present a search for the near infrared spectroscopic signature of the close orbiting extrasolar giant planet . we obtained @xmath0230 spectra in the wavelength range using the phoenix spectrograph at gemini south . by considering the direct spectrum , derived from irradiated model atmospheres , we search for the abs... | 248 |
1403.5386 | we report an implementation of the constrained random phase approximation ( crpa ) method within the projector augmented - wave framework . it allows for the calculation of the screened interaction in the same wannier orbitals as our recent dft+@xmath0 and dft+dmft implementations . we present calculations of the dynam... | 112 |
cond-mat0601207 | the hydrodynamic state of an impurity immersed in a low density granular gas is analyzed . explicit expressions for the temperature and density fields of the impurity in terms of the hydrodynamic fields of the gas are derived . it is shown that the ratio between the temperatures of the two components , measuring the de... | 151 |
1011.2867 | the _ x - ray telescope _ ( xrt ) onboard the _ hinode _ satellite is an x - ray imager that observes the solar corona with unprecedentedly high angular resolution ( consistent with its 1@xmath0 pixel size ) . xrt has nine x - ray analysis filters with different temperature responses . one of the most significant scien... | 151 |
1310.1175 | we present the observation of an extraordinary luminous soft x - ray transient , maxi j0158@xmath0744 , by the monitor of all - sky x - ray image ( maxi ) on 2011 november 11 . this transient is characterized by a soft x - ray spectrum , a short duration ( @xmath1 s @xmath2 s ) , a very rapid rise ( @xmath3 s ) , and a... | 251 |
1405.4720 | in the early morning hours of june 1 , 2009 , during a flight from rio de janeiro to paris , air france flight af 447 disappeared during stormy weather over a remote part of the atlantic carrying 228 passengers and crew to their deaths . after two years of unsuccessful search , the authors were asked by the french bure... | 182 |
0906.1526 | lhcb has been installed by spring 2008 , followed by intensive testing and commissioning of the system in order to be ready for first data taking . despite the horizontal geometry of the lhcb detector it was possible to collect over one million useful cosmic events that allowed a first time alignment of the sub - detec... | 104 |
1508.00926 | we show that , when graphene is only subject to strain , the spin connection gauge field that arises plays no measurable role , but when intrinsic curvature is present and strain is small , spin connection dictates most the physics . we do so by showing that the weyl field associated with strain is a pure gauge field a... | 193 |
1004.4874 | all - versus - nothing ( avn ) proofs show the conflict between einstein , podolsky , and rosen s elements of reality and the perfect correlations of some quantum states . given an @xmath0-qubit state distributed between @xmath1 parties , we provide a method with which to decide whether this distribution allows an @xma... | 101 |
1111.6009 | the inverse scattering problem of the three - dimensional schrdinger equation is considered at fixed scattering energy with spherically symmetric potentials . the phase shifts determine the potential therefore a constructive scheme for recovering the scattering potential from a _ finite _ set of phase shifts at a fixed... | 213 |
1511.06729 | the process of destroying a complex network through node removal has been the subject of extensive interest and research . node loss typically leaves the network disintegrated into many small and isolated clusters . here we show that these clusters typically remain close to each other and we suggest a simple algorithm ... | 185 |
1403.0877 | recent progress in the understanding of the complex magnetic properties of the family of rare - earth strontium oxides , @xmath0 , is reviewed . these compounds consisting of hexagons and triangles are affected by geometrical frustration and therefore exhibit its characteristic features , such as a significant reductio... | 125 |
1511.05828 | in active microrheology the mechanical properties of a material are tested by adding probe particles which are pulled by an external force . in case of supercooled liquids , strong forcing leads to a thinning of the host material which becomes more pronounced as the system approaches the glass transition . in this work... | 218 |
1012.2999 | data from e772 and e866 experiments on the drell - yan process exhibit a significant nuclear suppression at large feynman @xmath0 . we show that a corresponding kinematic region does not allow to interpret this as a manifestation of coherence or a color glass condensate . we demonstrate , however , that this suppressio... | 159 |
1301.4851 | there are several topological spaces associated to a complex hyperplane arrangement : the complement and its boundary manifold , as well as the milnor fiber and its own boundary . all these spaces are related in various ways , primarily by a set of interlocking fibrations . we use cohomology with coefficients in rank @... | 169 |
quant-ph0610041 | the passage - time distribution for a spread - out quantum particle to traverse a specific region is calculated using a detailed quantum model for the detector involved . that model , developed and investigated in earlier works , is based on the detected particle s enhancement of the coupling between a collection of sp... | 164 |
1101.0039 | the lennard - jones ( lj ) potential energy problem is to construct the most stable form of @xmath0 atoms of a molecule with the minimal lj potential energy . this problem has a simple mathematical form @xmath1 where @xmath2 , @xmath3 is the coordinates of atom @xmath4 in @xmath5 , @xmath6 , and @xmath7 ; however it is... | 183 |
hep-ph0208166 | -1.1 cm using the open quantum system approach applied to the neutrino system , we derive three generations neutrino probability formulae considering the oscillation induced by mass plus quantum decoherence contributions . the introduction of these dissipative effects is done through the quantum dynamical semigroup for... | 182 |
hep-ph9911396 | a precise determination of @xmath0 can be obtained exploiting the sum rule for inclusive charmless semileptonic @xmath1-meson decays . the sum rule is derived on the basis of light - cone expansion and @xmath2-flavored quantum number conservation . the sum rule does not receive any perturbative qcd correction . in this... | 122 |
1612.05209 | we use the one - dimensional object - oriented particle - in - cell monte carlo collision code oopd1 to explore the spatio - temporal evolution of the electron heating mechanism in a capacitively coupled oxygen discharge in the pressure range 10 200 mtorr . the electron heating is most significant in the sheath vicinit... | 162 |
astro-ph0005348 | we present a study of the x - ray emission from binary systems extracted from the lindroos catalogue ( lindroos 1986 ) based on the rosat all - sky survey as well as rosat pspc and hri pointings . the studied sample consists of visual binary systems comprised of early - type primaries and late - type secondaries . the ... | 210 |
nucl-th0311040 | calculations of the @xmath0he@xmath1si total reaction cross sections at intermediate energies are performed on the basis of the glauber - sitenko microscopic optical - limit model . the target - nucleus density distribution is taken from the electron - nucleus scattering data , and the @xmath0he densities are used as t... | 189 |
hep-ph0605069 | the form of the leptonic mixing matrix emerging from experiment has , in the last few years , generated a lot of interest in the so - called tribimaximal type . this form may be naturally associated with the possibility of a discrete permutation symmetry ( @xmath0 ) among the three generations . however , trying to imp... | 251 |
0711.1821 | we describe here how the late time behavior of the decaying states , which is predicted to deviate from an exponential form , while normally of insignificant consequence , may have important cosmological implications in the case of false vacuum decay . it may increase the likelihood of eternal inflation , and may help ... | 121 |
hep-ph0302177 | we calculate the branching ratios of @xmath0 decay in the sequential fourth generation model . we find that the theoretical values of the branching ratios , @xmath1 , including the contributions of @xmath2 , are much different from the minimal standard model ( sm ) predictions . the new physics contribution can provide... | 120 |
astro-ph0612105 | submillimetre ( sub - mm ) galaxies have very high infrared ( ir ) luminosities and are thousands of times more numerous at @xmath0 than local ultra - luminous ir galaxies . they therefore represent a key phase in galaxy evolution which can be missed in optical surveys . determining their contribution to the global sta... | 282 |
physics9707017 | we consider the langevin dynamics of a gaussian test polymer chain coupled with a surrounding matrix which can undergo the glass transition . the martin - siggia - rose generating functional method and the nonpertubative hartree approximation are used to derive the generalized rouse equation for the test chain . it is ... | 149 |
1411.0324 | within the wave - packet semiclassical approach , the bloch electron energy is derived to second order in the magnetic field and classified into gauge - invariant terms with clear physical meaning , yielding a fresh understanding of the complex behavior of orbital magnetic susceptibility . the berry curvature and quant... | 134 |
hep-ex0609059 | the results of a new search for positronium decays into invisible final states are reported . convincing detection of this decay mode would be a strong evidence for new physics beyond the standard model ( sm ) : for example the existence of extra dimensions , of milli - charged particles , of new light gauge bosons or ... | 193 |
quant-ph0208081 | we analyze an interferometric complementarity between one- and two - particle interference in the general case : @xmath0 @xmath1 , @xmath2 , and further examine the relation among one - particle interference visibility @xmath3 , two - particle interference visibility @xmath4 and the predication @xmath5 of the path of a... | 151 |
cond-mat0310253 | a binary lattice gas model that allows for multiple occupancy of lattice sites , inspired by recent coarse - grained descriptions of solutions of interacting polymers , is investigated by combining the steepest descent approximation with an exploration of the multidimensional energy landscape , and by gibbs ensemble mo... | 115 |
1301.2546 | one of the long standing challenges in molecular simulation is the description of interfaces . on the molecular length scale , finite size effects significantly influence the properties of the interface such as its interfacial tension , which can be reliably investigated by molecular dynamics simulation of planar vapor... | 185 |
cond-mat0002279 | we describe the conditional and unconditional dynamics of two coupled quantum dots when one dot is subjected to a measurement of its occupation number using a single electron transistor ( set ) . the measurement is made when the bare tunneling rate though the set is changed by the occupation number of one of the dots .... | 106 |
1610.04317 | in this paper we introduce a new approach for approximately counting in bounded degree systems with higher - order constraints . our main result is an algorithm to approximately count the number of solutions to a cnf formula @xmath0 with at least @xmath1 variables per clause and degree at most @xmath2 when @xmath1 is l... | 181 |
0801.3210 | the relativistic faddeev equation for three - nucleon scattering is formulated in momentum space and directly solved in terms of momentum vectors without employing a partial wave decomposition . the equation is solved through pad summation , and the numerical feasibility and stability of the solution is demonstrated . ... | 154 |
1411.5629 | a natural extension of bipartite graphs are @xmath0-partite clutters , where @xmath1 is an integer . for a poset @xmath2 , ene , herzog and mohammadi introduced the @xmath0-partite clutter @xmath3 of multichains of length @xmath0 in @xmath2 , showing that it is cohen - macaulay . we prove that the cover ideal of @xmath... | 144 |
1702.07653 | atoms in high - finesse optical resonators interact via the photons they multiply scatter into the cavity modes . the dynamics is characterized by dispersive and dissipative optomechanical long - range forces , which are mediated by the cavity photons , and exhibits a steady state for certain parameter regimes . in sta... | 184 |
1309.5094 | motivated by the asset - liability management of a nuclear power plant operator , we consider the problem of finding the least expensive portfolio , which outperforms a given set of stochastic benchmarks . for a specified loss function , the expected shortfall with respect to each of the benchmarks weighted by this los... | 128 |
1307.2814 | the disordered quasi-1d magnet bacu@xmath0sigeo@xmath1 is considered as one of the best physical realizations of the random heisenberg chain model , which features an irregular distribution of the exchange parameters and whose ground state is predicted to be the scarcely investigated _ random - singlet _ state ( rss ) ... | 166 |
astro-ph0011023 | core collapse supernovae ( sn ) are the final stages of stellar evolution in massive stars during which the central region collapses , forms a neutron star ( ns ) , and the outer layers are ejected . recent explosion scenarios assumed that the ejection is due to energy deposition by neutrinos into the envelope but deta... | 221 |
1401.6865 | a phenomenological theory is proposed to analyze the asymptotic dynamics of perturbed inviscid kolmogorov shear flows in two dimensions . the phase diagram provided by the theory is in qualitative agreement with numerical observations , which include three phases depending on the aspect ratio of the domain and the size... | 122 |
astro-ph0404528 | we describe an analysis of the time - resolved measurements of the surface magnetic field in the roap star @xmath0 equ . we have obtained a high - resolution and high s / n spectroscopic time - series , and the magnetic field was determined using zeeman resolved profiles of the feii 6149.25 and fei 6173.34 lines . cont... | 117 |
gr-qc0208010 | the riemannian @xmath0 symbols are spin networks that assign an amplitude to each 4-simplex in the barrett - crane model of riemannian quantum gravity . this amplitude is a function of the areas of the 10 faces of the 4-simplex , and barrett and williams have shown that one contribution to its asymptotics comes from th... | 177 |
0910.5268 | the development of cosmic ray air showers can be influenced by atmospheric electric fields . under fair weather conditions these fields are small , but the strong fields inside thunderstorms can have a significant effect on the electromagnetic component of a shower . understanding this effect is particularly important ... | 178 |
hep-ph0211068 | the right handed neutrino mass matrix that is central to the understanding of small neutrino masses via the seesaw mechanism can arise either ( i ) from renormalizable operators or ( ii ) from nonrenormalizable or super - renormalizable operators , depending on the symmetries and the higgs content of the theory beyond ... | 225 |
0708.2968 | a search for tribaryon states was performed at kek - ps . we adopted the @xmath0he(@xmath1 reaction to populate the states with strangeness @xmath21 , charge 0 and isospin 1 . no significant narrow structure was observed in the mass region from 3000 to 3200 mev/@xmath3 in an inclusive missing mass spectrum . the upper ... | 124 |
1406.1908 | we apply a recently developed technique of calculating the minimum jet kinetic power to the major mass ejections of the black - hole binary grs 1915 + 105 observed in radio wavelengths in 1994 and 1997 . we derive for them the distance - dependent minimum power , and the corresponding mass flow rate and the total energ... | 229 |
0807.3955 | traditionally , the distance to ngc 4038/39 has been derived from the systemic recession velocity , yielding about 20 mpc for @xmath0 km s@xmath1 mpc@xmath1 . recently , this widely adopted distance has been challenged based on photometry of the presumed tip of the red giant branch ( trgb ) , which seems to yield a sho... | 257 |
1401.5548 | we introduce an efficient mcmc sampling scheme to perform bayesian inference in the m / g/1 queueing model given only observations of interdeparture times . our mcmc scheme uses a combination of gibbs sampling and simple metropolis updates together with three novel `` shift '' and `` scale '' updates . we show that our... | 192 |
1008.0753 | two - particle two - hole contributions to electromagnetic response functions are computed in a fully relativistic fermi gas model . all one - pion exchange diagrams that contribute to the scattering amplitude in perturbation theory are considered , including terms for pionic correlations and meson - exchange currents ... | 104 |
1608.01792 | we consider the canonical problem of an array of rods , which act as resonators , placed on an elastic substrate ; the substrate being either a thin elastic plate or an elastic half - space . in both cases the flexural plate , or rayleigh surface , waves in the substrate interact with the resonators to create interesti... | 200 |
0708.2842 | image decomposition of galaxies is now routinely used to estimate the structural parameters of galactic components . in this work , i address questions on the reliability of this technique . in particular , do bars and agn need to be taken into account to obtain the structural parameters of bulges and discs ? and to wh... | 272 |
0804.0810 | cosmic string networks generate cosmological perturbations actively throughout the history of the universe . thus , the string sourced anisotropy of the cosmic microwave background is not affected by silk damping as much as the anisotropy seeded by inflation . the spectrum of perturbations generated by strings does not... | 139 |
0704.1123 | the two - dimensional kinetic ising model , when exposed to an oscillating applied magnetic field , has been shown to exhibit a nonequilibrium , second - order dynamic phase transition ( dpt ) , whose order parameter @xmath0 is the period - averaged magnetization . it has been established that this dpt falls in the sam... | 275 |
1207.5616 | we show that smooth isoperimetric profiles are exceptional for real analytic riemannian manifolds . for instance , under some extra assumption , this can happen only on topological spheres . _ to cite this article : renata grimaldi , stefano nardulli , pierre pansu , c. r. acad . sci . paris , ser . i * * * ( 200 + ) .... | 181 |
1403.0341 | the recent discoveries of massive neutron stars , such as psr j@xmath0 and psr j@xmath1 , have raised questions about the existence of exotic matter such as hyperons in the neutron star core . the validity of many established equations of states ( eos s ) like the gm1 and fsugold are also questioned . we investigate th... | 202 |
1402.1662 | in olfactory search an immobile target emits chemical molecules at constant rate . the molecules are transported by the medium which is assumed to be turbulent . considering a searcher able to detect such chemical signals and whose motion follows the infotaxis strategy , we study the statistics of the first - passage t... | 163 |
1102.5319 | we investigate the prospects for determining the accelerating history of the universe from upcoming measurements of the expansion rate @xmath0 . in our analyses , we use monte carlo simulations based on @xmath1cdm models to generate samples with different characteristics and calculate the evolution of the deceleration ... | 121 |
quant-ph0302198 | decoherence is the main obstacle to the realization of quantum computers . until recently it was thought that quantum error correcting codes are the only complete solution to the decoherence problem . here we present an alternative that is based on a combination of a decoherence - free subspace encoding and the applica... | 108 |
1208.3627 | the darwin approximation is investigated for its possible use in simulation of electromagnetic effects in large size , high frequency capacitively coupled discharges . the approximation is utilized within the framework of two different fluid models which are applied to typical cases showing pronounced standing wave and... | 178 |
physics0304081 | the conditions for occurrence of the efimov effect is briefly described using hyperspherical coordinates . the strength of the effective hyperradial @xmath0 potential appearing for two or three large scattering lengths is computed and discussed as function of two independent mass ratios of the three constituent particl... | 105 |
1609.01276 | finite group theorists have established many formulas that express interesting properties of a finite group in terms of sums of characters of the group . an obstacle to applying these formulas is lack of control over the dimensions of representations of the group . in particular , the representations of small dimension... | 225 |
0711.1040 | we study the average density of resonances ( dor ) for a semi - infinite disordered chain , coupled to the outside world by a ( semi - infinite ) perfect lead . a set of equations is derived , which provides the general framework for calculating the average dor , for an arbitrary disorder and coupling strength . these ... | 122 |
1611.08961 | the subtle interplay between local and global charges for topological semimetals exactly parallels that for singular vector fields . part of this story is the relationship between cohomological semimetal invariants , euler structures , and ambiguities in the torsion of manifolds . dually , semimetal invariants can be r... | 118 |
astro-ph0107222 | the primordial abundances of deuterium , helium , and lithium probe the baryon density of the universe only a few minutes after the big bang . of these relics from the early universe , deuterium is the baryometer of choice . after reviewing the current observational status ( a moving target ! ) , the bbn baryon density... | 154 |
0710.3594 | the preliminary na49 results on the energy dependence of transverse momentum fluctuations over the whole super proton synchrotron ( sps ) energy range exhibit an unexpected effect . the @xmath0 fluctuation measure - used by the na49 experiment - manifests a different behavior for different charge combinations . whereas... | 226 |
1101.0392 | seeger s semi - empirical mass formula is revisited for two of its constants ( bulk constant @xmath0 and neutron - proton asymmetry constant @xmath1 ) readjusted to obtain the ground - state ( g.s . ) binding energies of nuclei within a precision of @xmath21.5 mev and for nuclei up to z=118 . the aim is to include the ... | 204 |
astro-ph0212278 | this poster discusses a possible explanation for the relationship between the mass of the central supermassive black hole and the velocity dispersion in the bulge of the host galaxy . we suppose that the black hole and the dark matter halo are forming simultaneously as matter falls in , and a self - similar system then... | 127 |
astro-ph0001360 | deep x - ray surveys have shown that the cosmic x - ray background ( xrb ) is largely due to accretion onto supermassive black holes , integrated over cosmic time . however , the characteristic hard spectrum of the xrb can only be explained if most agn spectra are heavily absorbed . the absorbed agn will suffer severe ... | 176 |
1212.2156 | we consider the problem of photon creation from vacuum inside an ideal cavity with vibrating walls in the resonance case , taking into account the interaction between the resonant field mode and a detector modeled by a quantum harmonic oscillator . the frequency of wall vibrations is taken to be twice the cavity normal... | 205 |
astro-ph0101447 | we present a new code allowing to evolve three - dimensional self - gravitating collisionless systems with a large number of particles @xmath0 . * fly * ( fast level - based n - body code ) is a fully parallel code based on a tree algorithm . it adopts periodic boundary conditions implemented by means of the ewald summ... | 204 |
1607.06682 | spectra of comet c/2014 q2 ( lovejoy ) were taken with a low resolution spectrograph mounted on the 0.5 m telescope at the mount abu infrared observatory ( miro ) , india during january to may 2015 covering the perihelion and post - perihelion periods . the spectra showed strong molecular emission bands ( c@xmath0 , c@... | 174 |
1612.02097 | we present a new empirical fitting method for the optical light curves of type ia supernovae ( sne ia ) . we find that a variant broken - power - law function provides a good fit , with the simple assumption that the optical emission is approximately the blackbody emission of the expanding fireball . this function is m... | 168 |
0704.0960 | we propose a scheme for generating squeezed states in solid state circuits consisting of a nanomechanical resonator ( nmr ) , a superconducting cooper - pair box ( cpb ) and a superconducting transmission line resonator ( stlr ) . the nonlinear interaction between the nmr and the stlr can be implemented by setting the ... | 159 |
astro-ph0408269 | we present high - resolution infrared echelle spectroscopy for the globular clusters palomar 6 and m71 . our mean heliocentric radial velocity of palomar 6 is + 180.6 @xmath0 3.2 km sec@xmath1 and is 20 km sec@xmath1 lower than that found by minniti in 1995 . contrary to the previous metallicity estimates using low - r... | 178 |
1003.0123 | we study the quantum behaviour of a binary mixture of bose - einstein condensates ( bec ) in a double - well potential starting from a two - mode bose - hubbard hamiltonian . we focus on the small tunneling amplitude regime and apply perturbation theory up to second order . analytical expressions for the energy eigenva... | 169 |
0910.1661 | the so - called is generally characterized by the quasi - periodic oscillatory evolution of the photospheric spots number . this quasi - periodic pattern has always been an intriguing question . several physical models were proposed to explain this evolution and many mathematical data analysis were employed to determin... | 135 |
1210.1000 | the present paper is devoted to the study of resonances for one - dimensional quantum systems with a potential that is the restriction to some large box of an ergodic potential . for discrete models both on a half - line and on the whole line , we study the distributions of the resonances in the limit when the size of ... | 177 |
cond-mat0311283 | we calculate the system - size - over - wave - length ( @xmath0 ) dependence of sample - to - sample conductance fluctuations , using the open kicked rotator to model chaotic scattering in a ballistic quantum dot coupled by two @xmath1-mode point contacts to electron reservoirs . both a fully quantum mechanical and a s... | 143 |
1510.06833 | we consider a class of non - homogeneous , continuous , centered gaussian random fields @xmath0 where @xmath1 denotes a rescaled smooth manifold , i.e. @xmath2 and study the limit behavior of the extreme values of these gaussian random fields when @xmath3 tends to zero , which means that the manifold is growing . our m... | 130 |
nucl-ex0211019 | dynamic fluctuations in the local density of non - identified hadron tracks reconstructed in the star tpc are studied using the discrete wavelet transform power spectrum technique which involves mixed event reference sample comparison . the two - dimensional event - by - event analysis is performed in pseudo - rapidity... | 180 |
astro-ph0011163 | ngc2359 is an optical nebula excited by the powerful wind and the radiation of the wolf rayet star hd56925 . we have investigated the interaction between this massive star and the surrounding neutral gas by analyzing the large - scale 21cm - hi emission and by mapping the nebula in the j = @xmath0 and the j = @xmath1 l... | 292 |
astro-ph0010159 | we present preliminary results of our work on blazar unification . we assume that all blazars have a broad line region ( blr ) and that the size of the blr scales with the power of the source in a manner similar to that derived through reverberation mapping in radio quiet active galactic nuclei ( agns ) . using a self ... | 177 |
0901.4303 | we present a simple derivation of the energy formula found by tan , relative to the single channel hamiltonian relevant for ultracold fermi gases . this derivation is generalized to particles with different masses , to arbitrary mixtures , and to two - dimensional space . we show how , in a field theoretical approach ,... | 114 |
1607.06164 | the determination of the size of the convective core of main - sequence stars is usually dependent on the construction of models of stars . here we introduce a method to estimate the radius of the convective core of main - sequence stars with masses between about 1.1 and 1.5 @xmath0 from observed frequencies of low - d... | 185 |
1703.09984 | magic sand , a hydrophobic toy granular material , is widely used in popular science instructions because of its non - intuitive mechanical properties . a detailed study of the failure of an underwater column of magic sand shows that these properties can be traced to a single phenomenon : the system self - generates a ... | 157 |
0802.3880 | we present an extensive numerical study of the hubbard model on the doped ab@xmath0 chain , both in the weak coupling and the infinite - u limit . due to the special unit cell topology , this system displays a rich variety of phases as function of hole doping ( @xmath1 ) away from half - filling . near half - filling ,... | 126 |
0802.2251 | quantum counterparts of certain simple classical systems can exhibit chaotic behaviour through the statistics of their energy levels and the irregular spectra of chaotic systems are modelled by eigenvalues of infinite random matrices . we use known bounds on the distribution function for eigenvalue spacings for the gau... | 244 |
hep-ph0212021 | we summarize the current view on parton - hadron duality as it applies to @xmath0 meson decays . it is emphasized that an ope treatment is essential for properly formulating duality and its limitations . duality violations are unlikely to become the limiting factor in describing semileptonic @xmath0 width vis - a - vie... | 126 |
nucl-ex0308017 | a study of the @xmath0li(@xmath1be,@xmath2he@xmath1be)@xmath3h reaction at @xmath4=70 mev has been performed using resonant particle spectroscopy techniques and provides a measurement of @xmath5-decaying states in @xmath6c . excited states are observed at 12.0 , 13.4 , 14.1 , 14.6 , 15.2 , 16.8 , 17.9 , 18.7 , 21.3 and... | 132 |
1611.09912 | we study the effect of the electron - phonon coupling on vibrational eigenmodes of nano- and micro - mechanical systems made of semiconductors with equivalent energy valleys . we show that the coupling can lead to a strong mode nonlinearity . the mechanism is the lifting of the valley degeneracy by the strain . the red... | 140 |
hep-ex9906020 | we have made a precise measurement of the inclusive jet cross section at @xmath0=1800 gev . the result is based on an integrated luminosity of 92 pb@xmath1 collected at the fermilab tevatron @xmath2 collider with the d detector . the measurement is reported as a function of jet transverse energy ( 60 gev @xmath3 500 ge... | 138 |
math-ph0607054 | we study the adiabatic time evolution of quantum resonances over time scales which are small compared to the lifetime of the resonances . we consider three typical examples of resonances : the first one is that of shape resonances corresponding , for example , to the state of a quantum - mechanical particle in a potent... | 252 |
1304.3551 | we present a spectroscopically identified catalogue of 72 da white dwarfs from the lamost pilot survey . 35 are found to be new identifications after cross - correlation with the eisenstein et al . and villanova catalogues . the effective temperature and gravity of these white dwarfs are estimated by balmer lines fitti... | 156 |
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