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103 papers · 1 filter

hep-ph1998★ 36 cited

total cross-section in the dipole picture of BFKL dynamics

M. Boonekamp, A. De Roeck, C. Royon +1

The total cross-section is derived in the Leading Order QCD dipole picture of BFKL dynamics, and compared with the one from 2-gluon exchange. The Double Leading Logarithm…

physics.ins-det1998★ 13 cited

The Electronics of the H1 Lead/Scintillating-Fibre Calorimeters

H1 SpaCal Group, R. -D. Appuhn et al

The electronic system developed for the SpaCal lead/scintillating-fibre calorimeters of the H1 detector in operation at the HERA ep collider is described in detail and the performa…

nucl-th1998★ 5 cited

Chiral Symmetry In Nuclear Physics

Mannque Rho

How chiral symmetry -- which is a basic ingredient of quantum chromodynamics (QCD) for light-quark hadrons -- enters and plays an eminent role in nuclear physics is discussed. This…

hep-th1998

Complex Angular Momentum in General Quantum Field Theory

J. Bros, G. A. Viano

It is proven that for each given two-field channel - called the ``t-channel''- with (off-shell) ``scattering angle'' , the four-point Green's function of any scalar Quantum Fi…

cond-mat.str-el1998★ 11 cited

Incommensurability in the magnetic excitations of the bilinear-biquadratic spin-1 chain

O. Golinelli, Th. Jolicoeur, E. Sorensen

We study the magnetic excitation spectrum of the S=1 quantum Heisenberg spin chain with Hamiltonian : H = sum_i cos(theta) S_i S_i+1 + sin(theta) (S_i S_i+1)^2. We focus on the ran…

hep-ex1998★ 67 cited

Measurement of the High-Mass Drell-Yan Cross Section and Limits on Quark-Electron Compositeness Scales

B. Abbott

We present a measurement of the Drell-Yan cross section at high dielectron invariant mass using 120/pb of data collected in pbar-p collisions at sqrt(s) = 1.8 TeV by the D0 collabo…

solv-int1998

Various truncations in Painlevé analysis of PDEs

R. Conte

The ``truncation procedure'' initiated by Weiss et al. is best understood as a Darboux transformation. If it leads to the Lax pair of the PDE under study, the Bäcklund transformati…

solv-int1998★ 1 cited

Perturbative methods for the Painlevé test

R. Conte

There exist many situations where an ordinary differential equation admits a movable critical singularity which the test of Kowalevski and Gambier fails to detect. Some possible re…

nucl-ex1998★ 97 cited

Large Momentum Transfer Measurements of the Deuteron Elastic Structure Function A(Q^2) at Jefferson Laboratory

The Jefferson Lab Hall A Collaboration, L. C Alexa

The deuteron elastic structure function A(Q^2) has been extracted in the Q^2 range 0.7 to 6.0 (GeV/c)^2 from cross section measurements of elastic electron-deuteron scattering in c…

cond-mat.mes-hall1998★ 10 cited

Light scattering from mesoscopic objects in diffusive media

J. M. Luck, Th. M. Nieuwenhuizen

The diffuse intensity propagating in turbid media is sensitive to the presence of any kind of object embedded in the medium, e.g. obstacles or defects. The long-ranged effects of i…

cond-mat.stat-mech1998★ 2 cited

Overlap properties and adsorption transition of two Hamiltonian paths

S. Franz, T. Garel, H. Orland

We consider a model of two (fully) compact polymer chains, coupled through an attractive interaction. These compact chains are represented by Hamiltonian paths (HP), and the coupli…

cond-mat.dis-nn1998★ 13 cited

Scaling and infrared divergences in the replica field theory of the Ising spin glass

T. Temesvari, C. De Dominicis, I. Kondor

Replica field theory for the Ising spin glass in zero magnetic field is studied around the upper critical dimension d=6. A scaling theory of the spin glass phase, based on Parisi's…

hep-th1998★ 139 cited

D-particles, Matrix Integrals and KP hierachy

Vladimir A. Kazakov, Ivan K. Kostov, Nikita Nekrasov

We study the regularized correlation functions of the light-like coordinate operators in the reduction to zero dimensions of the matrix model describing -particles in four dimen…

astro-ph1998★ 12 cited

The warm interstellar medium around the Cygnus Loop

J. Bohigas, J. L. Sauvageot, A. Decourchelle

Observations of the oxygen lines [OII]3729 and [OIII]5007 in the medium immediately beyond the Cygnus Loop supernova remnant were carried out with the scanning Fabry-Pérot spectrop…

astro-ph1998★ 82 cited

Lithium-6 : Evolution from Big Bang to Present

Elisabeth Vangioni-Flam, Michel Casse, Roger Cayrel +3

The primordial abundances of Deuterium, he4, and li7 are crucial to determination of the baryon density of the Universe in the framework of standard Big Bang nucleosynthesis (BBN).…

hep-ex1998★ 9 cited

Search for the Standard Model Higgs boson at the LEP2 collider near sqrt(S) = 183GeV

ALEPH Collaboration

During 1997 the ALEPH experiment at LEP gathered 57pb^-1 of data at centre-of- mass energies near 183 GeV. These data are used to look for possible signals from the production of t…

cond-mat.soft1998

The role of the energy gap in protein folding dynamics

Estelle Pitard, Henri Orland

The dynamics of folding of proteins is studied by means of a phenomenological master equation. The energy distribution is taken as a truncated exponential for the misfolded states…

hep-ph1998★ 6 cited

Diffraction at small M^2/Q^2 in the QCD dipole picture

A. Bialas, H. Navelet, R. Peschanski

Using the QCD dipole picture of BFKL dynamics, the quasi elastic component of the diffractive gamma*-dipole cross-section, dominating at small M^2/Q^2, is calculated.

astro-ph1998

Deep ISOCAM Observations of Galaxy Clusters

Dario Fadda, David Elbaz

Ten galaxy clusters, with redshift ranging from 0.2 to 1, have been observed with the ISO camera in the two bands LW2 and LW3 (centered respectively at 6.75 and 15 microns). We pre…

hep-ex1998★ 18 cited

Study of D0-Dbar0 mixing and D0 doubly cabibbo-suppressed decays

ALEPH collaboration

Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D*+ -> D0pi^+_s, with D0 decaying to K-pi+ or to K+pi-, are studied. The relative…

cond-mat1998★ 2 cited

Structural evidence for the continuity of liquid and glassy water

Francis W. Starr, Marie-Claire Bellissent-Funel, H. Eugene Stanley

An open question is whether the liquid and glassy phases of water are thermodynamically distinct or continuous. Here we address this question using molecular dynamics simulations i…

astro-ph1998★ 117 cited

Dust in an extremely metal-poor galaxy: mid-infrared observations of SBS 0335-052

T. X. Thuan, M. Sauvage, S. Madden

The metal deficient (Z = Z_sun/41) Blue Compact Dwarf Galaxy (BCD) SBS 0335-052 was observed with ISOCAM between 5 and 17 mic. With a L_12mic/L_B ratio of 2.15, the galaxy is unexp…

math-ph1998★ 36 cited

Airy function (exact WKB results for potentials of odd degree)

A. Voros

An exact WKB treatment of 1-d homogeneous Schrödinger operators (with the confining potentials , even) is extended to odd degrees . The resulting formalism is first ill…

hep-ph1998★ 31 cited

Quark Condensation, Induced Symmetry Breaking and Color Superconductivity at High Density

Kurt Langfeld, Mannque Rho

The phase structure of hadronic matter at high density relevant to the physics of compact stars and relativistic heavy-ion collisions is studied in a low-energy effective quark the…