Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.8k papers
- Heidelberg UniversityDE2.1k papers
- University of OxfordGB2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- European Organization for Nuclear ResearchCH2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- University of EdinburghGB1.9k papers
- The University of TokyoJP1.9k papers
- Ludwig-Maximilians-Universität MünchenDE1.9k papers
- University of ManchesterGB1.9k papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL1.8k papers
88 papers · 1 filter
Target-Space Duality in Heterotic and Type I Effective Lagrangians
Zygmunt Lalak, Stéphane Lavignac, Hans Peter Nilles
We study the implications of target-space duality symmetries for low-energy effective actions of various four-dimensional string theories. In the heterotic case such symmetries can…
Measurement of p + d -> 3He + eta in S(11) Resonance
M. Betigeri, J. Bojowald, A. Budzanowski +36
We have measured the reaction p + d -> 3He + eta at a proton beam energy of 980 MeV, which is 88.5 MeV above threshold using the new ``germanium wall'' detector system. A missing--…
A Remark on the Optimal Cloning of An N-Level Quantum System
Sergio Albeverio, Shao-Ming Fei
We study quantum cloning machines (QCM) that act on an unknown N-level quantum state and make M copies. We give a formula for the maximum of the fidelity of cloning and exhibit the…
A Hiker's Guide to K3 - Aspects of N=(4,4) Superconformal Field Theory with central charge c=6
W. Nahm, K. Wendland
We study the moduli space of N=(4,4) superconformal field theories with central charge c=6. After a slight emendation of its global description we find the locations of…
Cross Sections for pi- and rho-induced Dissociation of J/psi and psi'
Cheuk-Yin Wong, E. S. Swanson, T. Barnes
We evaluate the cross sections for the dissociation of and by and at low collision energies, using the quark-interchange model of Barnes and Swanson. The dissoci…
Kinematical trends among the field horizontal branch stars
Martin Altmann, Klaas S. de Boer
Field Horizontal branch (HB) stars can be used as tracers for the study of early stages of the evolution of our galaxy. Since the age of individual HB stars is not known a priori,…
Discovery of molecular hydrogen in a high-velocity cloud of the Galactic halo
P. Richter, K. S. de Boer, H. Widmann +4
We report the discovery of molecular hydrogen absorption in a Galactic high-velocity cloud (HVC) in the direction of the Large Magellanic Cloud. For the same HVC we derive an iron…
Energy and entropy of metastable states in glassy systems
J. Christian Schoen, P. Sibani
We investigate the multi-valley energy landscape of a 3-D on-lattice network model for covalent glasses, numerically determining the shape of the valleys, the local density of stat…
Binding Energies and Scattering Observables in the 4^He_3 Atomic System
A. K. Motovilov, W. Sandhas, S. A. Sofianos +1
The ^4He_3 bound states and the scattering of a ^4He atom off a ^4He dimer at ultra-low energies are investigated using a hard-core version of the Faddeev differential equations. V…
ORFEUS II echelle spectra: deuterium and molecular hydrogen in the ISM towards BD +39 3226
H. Bluhm, O. Marggraf, K. S. de Boer +2
In ORFEUS II spectra of the sdO star BD +39 3226 interstellar hydrogen and deuterium is detected. From Ly alpha profile fitting and a curve of growth analysis of the Lyman series o…
Status of Measurements and Interpretation of Total Real and Virtual Photon-Proton Cross Sections
Christoph Amelung
The status of measurements and interpretation of the proton structure function F2 is summarized. The measurements are subjected to DGLAP fits, from which the gluon density is extra…
Search for excited fermions and leptoquarks at HERA
Ulrich F. Katz
Recent results on searches for new particles at the electron-proton collider HERA are reported. Based on roughly 40pb-1 of e^+p data taken in the years 1994-1997, the H1 and ZEUS c…
Measurement of the W+W-gamma Cross-section and First direct Limits on Anomalous Electroweak Quartic Gauge Couplings
The OPAL collaboration, G. Abbiendi
A study of W+W- events accompanied by hard photon radiation produced in e+e- collisions at LEP is presented. Events consistent with two on-shell W-bosons and an isolated photon are…
Topical Results on Vector-Meson Production from the HERA Collider Experiments
J. A. Crittenden
The HERA collider experiments H1 and ZEUS have established extensive measurement programs for diffractive vector-meson production processes during the first six years of their oper…
On Matrix Product States for Periodic Boundary Conditions
Klaus Krebs
The possibility of a matrix product representation for eigenstates with energy and momentum zero of a general m-state quantum spin Hamiltonian with nearest neighbour interaction an…
On Rational Bubbles and Fat Tails
Thomas Lux, D. Sornette
This paper addresses the statistical properties of time series driven by rational bubbles a la Blanchard and Watson (1982), corresponding to multiplicative maps, whose study has re…
Counting Cold Collisions
B. Ueberholz, S. Kuhr, D. Frese +2
We have experimentally explored a novel possibility to study exoergic cold atomic collisions. Trapping of small countable atom numbers in a shallow magneto-optical trap and monitor…
Special complex manifolds
D. V. Alekseevsky, V. Cortés, C. Devchand
We introduce the notion of a special complex manifold: a complex manifold (M,J) with a flat torsionfree connection \nabla such that (\nabla J) is symmetric. A special symplectic ma…
Kullback-Leibler and Renormalized Entropy: Applications to EEGs of Epilepsy Patients
R. Quian Quiroga, J. Arnhold, K. Lehnertz +1
Recently, renormalized entropy was proposed as a novel measure of relative entropy (P. Saparin et al., Chaos, Solitons & Fractals 4, 1907 (1994)) and applied to several physiologic…
Integral Equation Results for the 4He(e,e'p)3H Reaction at High Missing Momenta
S. A. Sofianos, G. Ellerkmann, W. Sandhas
The two-fragment electrodisintegration of 4He into proton and triton is calculated in Plane Wave Impulse Approximation (PWIA). The three- and four-nucleon wave functions involved a…
Gauged N=2 Off-Shell Supergravity in Five Dimensions
Max Zucker
We present some multiplets of N=2 off-shell supergravity in five dimensions. One is the Super Yang-Mills multiplet, another one is the linear multiplet. The latter one is used to e…
H2 dark matter in the galactic halo from EGRET
P. M. W. Kalberla, Yu. A. Shchekinov, R. -J. Dettmar
We present a model for the interpretation of the gamma-ray background emission from the Galactic halo, which we attribute to interaction of high-energy cosmic rays with dense molec…
Minimal Off-Shell Supergravity in Five Dimensions
Max Zucker
We give an off-shell formulation of N=2 Poincare supergravity in five dimensions
Perturbation of a lattice spectral band by a nearby resonance
A. K. Motovilov, W. Sandhas, V. B. Belyaev
A soluble model of weakly coupled "molecular" and "nuclear" Hamiltonians is studied in order to exhibit explicitly the mechanism leading to the enhancement of fusion probability in…