Showing papers in "Nuclear Physics in 1998"

TL;DR: In this paper, it was shown that string theory on AdS5 × X5 can be described by a certain N = 1 supersymmetric gauge theory, which we describe in detail.

TL;DR: In this paper, the Skyrme effective forces were revisited in order to improve their isospin properties away from the β stability line, and these forces were specifically adjusted to reproduce finite nuclei properties.

TL;DR: In this paper, the covariant κ-symmetric superstring action for a type IIB superstring on AdS5 ⊕ S5 background was constructed and the action was defined as a 2d σ-model on the coset superspace SU(2.2|4) SO(4,1) x SO(5) and was shown to have the correct bosonic and flat space limits.

TL;DR: In this article, the authors present general prescriptions for the asymptotic expansion of massive multi-loop Feynman integrals near threshold, where the terms of the threshold expansion are associated with subgraphs of a given graph and explicitly written through Taylor expansions of the corresponding integrands in certain sets of parameters.

TL;DR: In this article, the relativistic mean field (RMF) theory was used to construct the EOS of homogeneous nuclear matter, where heavy nuclei are formed together with free nucleon gas.

TL;DR: In this article, the authors used the abelian Born-Infeld action for the world-volume gauge field and transverse displacement scalars to explore new aspects of D-brane structure and dynamics.

TL;DR: In this article, the Euler trace anomaly coefficient was shown to satisfy a four-dimensional analogue of the c-theorem, supporting the idea of irreversibility of the RG flow.

TL;DR: In this article, the s-wave meson-nucleon interaction in the S = −1 sector is studied by means of coupled-channel Lippmann-Schwinger equations, using the lowest order chiral Lagrangian and a cut off to regularize the loop integrals.

TL;DR: In this article, the authors discuss the role of Dirichlet p-branes as the ends of strings intersecting the brane when the effects of gravity are ignored, and show that certain special Lagrangian submanifolds of C p, p = 3, 4, 5, may be regarded as supersymmetric configurations consisting of pbranes at angles joined by throats which are the sources of global monopoles.

TL;DR: In this paper, the amplitude to sub-leading order in both the 1 S 0 and 3 S 1 − 3 D 1 channels was analyzed for low energy NN scattering data.

TL;DR: In this paper, the free energy of the maximally supersymmetric SU(N) gauge theory at temperature T is expected to scale, in the large-N limit, as N 2T4 times a function of the 't Hooft coupling, f (gYM2N)−32.

TL;DR: In this paper, the Coulomb-like heavy quark potential has been shown to have a finite temperature scaling consistent with the underlying conformal invariance of d = 4, At" = 4 superconformal U(N) gauge theory.

TL;DR: In this paper, the authors consider a subgroup of the SU(4) R-symmetry which acts non-trivially on the gauge group, and show that for every discrete subgroup, there is a canonical choice of imbedding of the discrete group in the gauge groups which leads to theories with a vanishing one-loop beta-function.

TL;DR: In this paper, an explicit expression for the Ddimensional two-loop contribution to the four-particle S-matrix for N = 8 supergravity was obtained, which was compared to the corresponding N = 4 Yang-Mills result.

TL;DR: In this article, the cross sections for the production processes p p /pp → t 1 t 1 and t 2 t 2 at Tevatron and LHC energies in next-to-leading order supersymmetric QCD are presented.

TL;DR: The first explicit formulae for the complete set of one-loop helicity amplitudes necessary for computing next-to-leading order corrections for e + e − annihilation into four jets, for W, Z or Drell-Yan production in association with two jets at hadron colliders, and for three-jet production in deeply inelastic scattering experiments were presented in this article.

TL;DR: In this paper, the role of N = 4 conformal supergravity in the duality relation between D = 5 gauged supergravity expanded near the anti-de Sitter background is considered.

TL;DR: In this article, the global symmetries of the action can be affected by the choice of a subset of fields, which is called the GLA, D, E and GLB series.

TL;DR: In this article, the authors examined the contributions of soft gluons to the Higgs production cross section at the LHC in the Standard Model and its minimal supersymmetric extension, and demonstrated the importance of including the novel contributions in the resummed Drell-Yan process.

TL;DR: In this article, a non-perturbative lattice model of 2D Lorentzian quantum gravity was formulated by performing the path integral over geometries with a causal structure.

TL;DR: In this paper, D-branes are described by boundary states providing sources for closed string modes, independently of classical notions, and explicit formulas for boundary states in Gepner models are given for computing excitation spectra of brane configurations.

TL;DR: In this paper, a systematic study of twist 3 light-cone distribution amplitudes of vector mesons in QCD is presented, which is based on conformal expansion and takes into account meson and quark mass corrections.

TL;DR: In this article, the authors derived simple formulae which reduce the calculation of ζg and ζm to the solution of vacuum integrals, which allows them to evaluate λγ and λm through three loops.

TL;DR: In this article, the authors derived dispersive constraints on the shape of the form factors which describe the exclusive decays B → D(∗)l v for the ground-state doublet of heavy light mesons.

TL;DR: In this paper, the authors presented the QCD corrections to the matching conditions of the ΔB = 1 magnetic and chromo-magnetic operators in the Standard Model and in two-Higgs doublet models.

TL;DR: In this article, the authors analyzed the production cross sections of several hundred nuclei produced in the fragmentation of uranium and lead projectiles with the abrasion-ablation model taking into account fission in the deexcitation chain.

TL;DR: In this paper, the authors considered configurations of six-branes, five-brane, and eightbranes in various superstring backgrounds and gave rise to (0, 1) supersymmetric theories in six dimensions.

TL;DR: In this paper, a detailed derivation of the charge-1 periodic instantons with non-trivial holonomy for SU(2) was presented, using a suitable combination of the Nahm transformation and ADHM techniques.

TL;DR: In this paper, a supersymmetric self-dual string soliton of the M-theory fivebrane's equations of motion was obtained, which was then dimensionally reduced and used to obtain 0-brane and (p − 3)-brane solitons on Dp-branes.