Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.8k papers
- Deutsches Elektronen-Synchrotron DESYDE1.7k papers
- Lawrence Berkeley National LaboratoryUS1.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.7k papers
- TU Dortmund UniversityDE1.6k papers
- Heidelberg UniversityDE1.6k papers
- The Ohio State UniversityUS1.6k papers
- Stockholm UniversitySE1.6k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.5k papers
- University of California, IrvineUS1.5k papers
- Johannes Gutenberg University MainzDE1.5k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR1.5k papers
48 papers · 1 filter
Type II Duality Symmetries in Six Dimensions
K. Behrndt, E. Bergshoeff, Bert Janssen
We discuss the different discrete duality symmetries in six dimensions that act within and between (i) the 10-dimensional heterotic string compactified on , (ii) the 10-dimens…
Conformal Symmetries of the Self-Dual Yang-Mills Equations
A. D. Popov, C. R. Preitschopf
We describe an infinite-dimensional Kac-Moody-Virasoro algebra of new hidden symmetries for the self-dual Yang-Mills equations related to conformal transformations of the 4-dimensi…
--Dimensional Approach to Hot Electroweak Matter for GeV
M. Guertler, E. -M. Ilgenfritz, J. Kripfganz +2
We study the electroweak phase transition by lattice simulations of an effective 3-dimensional theory, for a Higgs mass of about GeV. Exploiting a variant of the equal weight…
On scheme dependence of gravitational dressing of renormalization group functions
H. Dorn
It is shown that for 2D field theories only the first order coefficient of the gravitationally dressed RG -function is scheme independent. This is valid even for matter theories…
Non-perturbative renormalization of lattice QCD at all scales
Karl Jansen, Chuan Liu, Martin Luescher +5
A general strategy to solve the non-perturbative renormalization problem in lattice QCD, using finite-size techniques and numerical simulations, is described. As an illustration we…
Extended supersymmetry with gauged central charge
Ingo Gaida
Global N=2 supersymmetry in four dimensions with a gauged central charge is formulated in superspace. To find an irreducible representation of supersymmetry for the gauge connectio…
BPS Spectra and Non--Perturbative Couplings in N=2,4 Supersymmetric String Theories
Gabriel Lopes Cardoso, Gottfried Curio, Dieter Lust +2
We study the BPS spectrum in heterotic string compactifications, with some emphasis on intermediate BPS states. These intermediate states, which can become short i…
A Search for Leptoquarks at HERA
H1 Collaboration, S. Aid et al
A search for leptoquarks at HERA was performed in H1 using 1994 data corresponding to an integrated luminosity of about $3 \pb^{-1}$. Single leptoquarks were searched for i…
String-string duality for some black hole type solutions
K. Behrndt, H. Dorn
We apply the duality transformation relating the heterotic to the IIA string in 6D to the class of exact string solutions described by the chiral null model and derive explicit for…
Jets and Energy Flow in Photon-Proton Collisions at HERA
H1-Collaboration, S. Aid et al
Properties of the hadronic final state in photoproduction events with large transverse energy are studied at the electron-proton collider HERA. Distributions of the transverse ener…
Adlayer core-level shifts of admetal monolayers on transition metal substrates and their relation to the surface chemical reactivity
Dieter Hennig, Maria Veronica Ganduglia-Pirovano, Matthias Scheffler
Using density-functional-theory we study the electronic and structural properties of a monolayer of Cu on the fcc (100) and (111) surfaces of the late 4d transition metals, as well…
Quantum state measurement by realistic heterodyne detection
Matteo G. A. Paris
The determination of the quantum properties of a single mode radiation field by heterodyne or double homodyne detection is studied. The realistic case of not fully efficient photod…
Perturbative and Non-Perturbative Results for Heterotic Strings
G. Lopes Cardoso, D. Lust, T. Mohaupt
In this paper we summarize our recent work about perturbative and non-perturbative effects in four-dimensional heterotic strings with space-time supersymmetry.
Numerical analysis of the spectrum of the Dirac operator in four-dimensional SU(2) gauge fields
Thomas Kalkreuter
Two numerical algorithms for the computation of eigenvalues of Dirac operators in lattice gauge theories are described: one is an accelerated conjugate gradient method, the other o…
On Semi-Periods
A. C. Avram, E. Derrick, D. Jancic
The periods of the three-form on a Calabi-Yau manifold are found as solutions of the Picard-Fuchs equations; however, the toric varietal method leads to a generalized hypergeometri…
The Alexander- and Jones-invariants and the Burau module
Florin Constantinescu, Mirko Luedde
From the braid-valued Burau module over the braid group we construct the Yang-Baxter matrices yielding the Alexander- and the Jones knot invariants. This generalises an observation…
Generalised Magnus modules over the braid group
Mirko Luedde
W.~Magnus' representations of submonoids $ E \leq \mbox{End}(F) $ of the endomorphisms of a free group of finite rank are generalised by identifying them with the first homol…
Axial Couplings on the World-Line
Myriam Mondragon, Lukas Nellen, Michael G. Schmidt +1
We construct a world-line representation for the fermionic one-loop effective action with axial and also vector, scalar, and pseudo-scalar couplings. We use this expression to comp…
Reconstructing the density operator via simple projectors
Ole Steuernagel, John A. Vaccaro
We describe the representation of arbitrary density operators in terms of expectation values of simple projection operators. Two representations are presented which yield non--recu…
Non-Perturbative versus Perturbative Renormalization of Lattice Operators
M. Göckeler, R. Horsley, E. -M. Ilgenfritz +5
Our objective is to compute the moments of the deep-inelastic structure functions of the nucleon on the lattice. A major source of uncertainty is the renormalization of the lattice…
On-Mass-Shell Gaugino Condensation in Z_{N} Orbifold Compactifications
Ingo Gaida, Dieter Luest
We discuss non-perturbative aspects of string effective field theories with N=1 supersymmetry in four dimensions. By the use of a scalar potential, which is on-shell invariant unde…
String-dual -Function in the Three Parameter Model
Gottfried Curio
Computation of the holomorphic -function describing one-loop gravitational couplings of vectormultiplets is shown to confirm string-string duality of the proposed dual pair co…
A Lattice Evaluation of the Deep-Inelastic Structure Functions of the Nucleon
M. Göckeler, R. Horsley, E. -M. Ilgenfritz +5
The lower moments of the unpolarized and polarized deep-inelastic structure functions of the nucleon are calculated on the lattice. The calculation is done with Wilson fermions and…
Polarized and Unpolarized Nucleon Structure Functions from Lattice QCD
M. Göckeler, R. Horsley, E. -M. Ilgenfritz +4
We report on a high statistics quenched lattice QCD calculation of the deep-inelastic structure functions , , and of the proton and neutron. The theoretical b…