Showing 2002Show all

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hep-th2002★ 4 cited

Non-Abelian Giant Gravitons

Bert Janssen, Yolanda Lozano

We argue that the giant graviton configurations known from the literature have a complementary, microscopical description in terms of multiple gravitational waves undergoing a diel…

hep-th2002★ 5 cited

Comments on the classification of orientifolds

L. R. Huiszoon

The simple current construction of orientifolds based on rational conformal field theories is reviewed. When applied to SO(16) level 1, one can describe all ten-dimensional orienti…

cond-mat2002★ 59 cited

Valency of rare earths in RIn3 and RSn3: Ab initio analysis of electric-field gradients

S. Jalali Asadabadi, S. Cottenier, H. Akbarzadeh +2

In RIn3 and RSn3 the rare earth (R) is trivalent, except for Eu and Yb, which are divalent. This was experimentally determined in 1977 by perturbed angular correlation measurements…

math.CA2002

Strong asymptotics of the recurrence coefficients of orthogonal polynomials associated to the generalized Jacobi weight

M. Vanlessen

We study asymptotics of the recurrence coefficients of orthogonal polynomials associated to the generalized Jacobi weight, which is a weight function with a finite number of algebr…

astro-ph2002★ 153 cited

Understanding the spectra of isolated Herbig stars in the frame of a passive disk model

C. Dominik, C. P. Dullemond, L. B. F. M. Waters +1

We discuss spectral energy distributions of a sample of Herbig Ae/Be stars in the context of a passive irradiated disk model. The data have been presented earlier by Meeus et al (2…

hep-th2002★ 14 cited

Explicit factorization of Seiberg-Witten curves with matter from random matrix models

Yves Demasure, Romuald A. Janik

Within the Dijkgraaf-Vafa correspondence, we study the complete factorization of the Seiberg-Witten curve for U(N_c) gauge theory with N_f<N_c massive flavors. We obtain explicit e…

physics.bio-ph2002★ 8 cited

Hierarchical population model with a carrying capacity distribution

J. O. Indekeu, K. Sznajd-Weron

A time- and space-discrete model for the growth of a rapidly saturating local biological population is derived from a hierarchical random deposition process previously stu…

astro-ph2002★ 80 cited

A photometric mode identification method, including an improved non-adiabatic treatment of the atmosphere

M. -A. Dupret, J. De Ridder, P. De Cat +4

We present an improved version of the method of photometric mode identification of Heynderickx et al. (1994). Our new version is based on the inclusion of precise non-adiabatic eig…

cond-mat.soft2002★ 29 cited

The polymer theta-point as a knot delocalisation transition

E. Orlandini, A. L. Stella, C. Vanderzande

We study numerically the tightness of prime flat knots in a model of self-attracting polymers with excluded volume. We find that these knots are localised in the high temperature s…

astro-ph2002★ 34 cited

Nonadiabatic resonant dynamic tides and orbital evolution in close binaries

B. Willems, T. Van Hoolst, P. Smeyers

This investigation is devoted to the effects of nonadiabatic resonant dynamic tides generated in a uniformly rotating stellar component of a close binary. The companion is consider…

hep-th2002★ 7 cited

Solutions to the Massive HLW IIA Supergravity

Jos Gheerardyn

We find new supersymmetric solutions of the massive supergravity theory which can be constructed by generalized Scherk-Schwarz dimensional reduction of eleven dimensional supergrav…

hep-th2002★ 59 cited

Effective matter superpotentials from Wishart random matrices

Yves Demasure, Romuald A. Janik

We show how within the Dijkgraaf-Vafa prescription one can derive superpotentials for matter fields. The ingredients forming the non-perturbative Affleck-Dine-Seiberg superpotentia…

math.LO2002

Grothendieck rings of Laurent series fields

Raf Cluckers

We study Grothendieck rings (in the sense of logic) of fields. We prove the triviality of the Grothendieck rings of certain fields by constructing definable bijections which imply…

hep-ph2002★ 2 cited

Neutrino masses from universal Fermion mixing

R. Gastmans, Per Osland, Tai Tsun Wu

If three right-handed neutrinos are added to the Standard Model, then, for the three known generations, there are six quarks and six leptons. It is then natural to assume that the…

astro-ph2002

Searching for Line Profile Variability in HgMn Stars

S. Turcotte, C. Aerts, P. Knoglinger

Spectra of four non-magnetic chemically peculiar late B type stars (HgMn) stars are analysed to detect periodic spectral line variations (LPVs). A procedure developed to study LPVs…

astro-ph2002★ 43 cited

Cerium: the lithium substitute in post-AGB stars

Maarten Reyniers, Hans Van Winckel, Emile Biemont +1

In this letter we present an alternative identification for the line detected in the spectra of s-process enriched low-mass post-AGB stars around 6708A and which was interpreted in…

cond-mat.dis-nn2002★ 6 cited

Optimal Capacity of the Blume-Emery-Griffiths perceptron

D. Bolle, I. Perez Castillo, G. M. Shim

A Blume-Emery-Griffiths perceptron model is introduced and its optimal capacity is calculated within the replica-symmetric Gardner approach, as a function of the pattern activity a…

cond-mat.dis-nn2002★ 9 cited

Thermodynamics of fully connected Blume-Emery-Griffiths neural networks

D. Bolle, T. Verbeiren

The thermodynamic and retrieval properties of fully connected Blume-Emery-Griffiths networks, storing ternary patterns, are studied using replica mean-field theory. Capacity-temper…

hep-ex2002★ 56 cited

Search for Supersymmetric Particles with R-Parity Violating Decays in e+e- Collisions at sqrt{s} up to 209GeV

ALEPH Collaboration

Searches for the pair production of supersymmetric particles under the assumption that R-parity is violated via a single dominant LLEbar, LQDbar or UbarDbarDbar coupling are perfor…

astro-ph2002★ 55 cited

The dust disk of HR4049

C. Dominik, C. P. Dullemond, J. Cami +1

We present the Spectral Energy Distribution of HR 4049 based on literature data and new continuum measurements at 850 micron. The SED shows variable absorption in the UV, and a lar…

astro-ph2002★ 137 cited

Infrared stellar populations in the central parts of the Milky Way galaxy

Jacco Th. van Loon, G. F. Gilmore, A. Omont +7

Near- and mid-IR survey data from DENIS and ISOGAL are used to investigate the structure and formation history of the inner 10 degree (1.4 kpc) of the Milky Way galaxy. Synthetic b…

nucl-ex2002★ 7 cited

Study of the ^18F(p, alpha)^15O reaction for application to nova gamma-ray emission

N. de Sereville, A. Coc, C. Angulo +22

The ^18F(p, alpha)^15O reaction is recognized as one of the most important reaction for nova gamma-ray astronomy as it governs the early =< 511 keV emission. However, its rate rema…

astro-ph2002★ 176 cited

Detection of Solar-like Oscillations in the G7 Giant Star xi Hya

S. Frandsen, F. Carrier, C. Aerts +9

We report the firm discovery of solar-like oscillations in a giant star. We monitored the star xi Hya (G7III) continuously during one month with the CORALIE spectrograph attached t…

cond-mat.supr-con2002★ 8 cited

Influence of the van Hove singularity on the specific heat jump in BCS superconductors

T. Mishonov, S. -L. Drechsler, E. Penev

Within the weak-coupling BCS scheme we derive a general form of the coefficients in the Ginzburg-Landau expansion of the free energy of a superconductor for the case of a Fermi lev…