9.8k citations
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
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
- European Organization for Nuclear ResearchCH2.3k papers
- ETH ZurichCH2.2k papers
- Rutherford Appleton LaboratoryGB2.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.1k papers
- Imperial College LondonGB2.1k papers
- University of BristolGB2.1k papers
- University of Maryland, College ParkUS2.1k papers
- Massachusetts Institute of TechnologyUS2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2k papers
54 papers · 1 filter
Oxygen isotope effect on the in-plane penetration depth in underdoped La_{2-x}Sr_{x}CuO_{4} single crystals
J. Hofer, K. Conder, T. Sasagawa +4
We report measurements of the oxygen isotope effect (OIE) on the in-plane penetration depth λ_{ab}(0) in underdoped La_{2-x}Sr_{x}CuO_{4} single crystals. A highly sensitive magnet…
Oxygen isotope effects in high-quality thin films of manganites: Quantitative constraints on the physics of manganites
G. M. Zhao, D. J. Kang, W. Prellier +4
Oxygen isotope effects on the transport properties have been studied in high-quality epitaxial thin films of La_{0.75}Ca_{0.25}MnO_{3} and Nd_{0.7}Sr_{0.3}MnO_{3}. In the paramagne…
Deduction over Mixed-Level Logic Representations for Text Passage Retrieval
Michael Hess
A system is described that uses a mixed-level representation of (part of) meaning of natural language documents (based on standard Horn Clause Logic) and a variable-depth search st…
Torque magnetometry on single-crystal high temperature superconductors near the critical temperature: a scaling approach
J. Hofer, T. Schneider, J. M. Singer +6
Angular-dependent magnetic torque measurements performed near the critical temperature on single crystals of HgBa_{2}CuO_{4+y}, La_{2-x}Sr{x}CuO_{4}, and YBa_{2}Cu_{3}O_{6.93} are…
Electrical transport in the ferromagnetic state of manganites: Small-polaron metallic conduction at low temperatures
G. M. Zhao, V. Smolyaninova, W. Prellier +1
We report measurements of the resistivity in the ferromagnetic state of epitaxial thin films of La_{1-x}Ca_{x}MnO_{3} and the low temperature specific heat of a polycrystalline La_…
Finite Temperature QED: Non-Cancellation of Infrared Divergencies and Thermal Corrections to the Electron Magnetic Moment
Adrian Muller
In this work quantum electrodynamics at T > 0 is considered. For this purpose we use thermo field dynamics and the causal approach to quantum field theory according to Epstein and…
Scalar Matter Coupled to Quantum Gravity in the Causal Approach: Finite One-Loop Calculations and Perturbative Gauge Invariance
Nicola Grillo
Quantum gravity coupled to scalar massive matter fields is investigated within the framework of causal perturbation theory. One-loop calculations include matter loop graviton self-…
Reordering of Baryon Chiral Perturbation Theory
Martin Mojzis, Joachim Kambor
Reordering of the chiral perturbation series, proposed recently by Becher and Leutwyler in the framework of SU(2) baryonic ChPT, is applied to the SU(3) case. This results in impro…
H2 molecules and cold clouds in cooling flow clusters
L. Grenacher, Ph. Jetzer, D. Puy
We investigated the cooling mechanism due to H2 and HD molecules in order to determine the minimum temperature achievable by cold H2-HD clouds in cooling flow clusters.
Evolution of primordial H2 for different cosmological models
Denis Puy
Primordial chemistry began in the recombination epoch when the adiabatic expansion caused the temperature of the radiation to fall below 4000 K. The chemistry of the early Universe…
Moduli of simple holomorphic pairs and effective divisors
Siegmund Kosarew, Paul Lupascu
In this note we identify two complex structures (one is given by algebraic geometry, the other by gauge theory) on the set of isomorphism classes of holomorphic bundles with sectio…
Molecular clouds in cooling flow cluster of galaxies
L. Grenacher, Ph. Jetzer, D. Puy
In many clusters of galaxies there is evidence for cooling flow in the central regions. A possibility is that a fraction of the gas forms cold molecular clouds. We investigate the…
Thermal equilibrium of cold clouds in PKS 0745-191
L. Grenacher, Ph. Jetzer, D. Puy
PKS 0745-191 is a powerful radio source with one of the largest known cooling flows (De Grandi, Molendi 1999). A fraction of the cool gas could accumulate into small molecular clou…
Cold clouds in cooling flows
L. Grenacher, Ph. Jetzer, D. Puy
In many clusters of galaxies there is evidence for cooling flows which deposit large quantities of cool gas in the central regions. A fraction of this gas might accumulate as dense…
Giant Arc Statistics and Cosmological Parameters
R. Kaufmann, N. Straumann
We study with semi-analytical methods the statistics of pronounced arcs caused by lensing of galaxies by foreground galaxy clusters. For the number density and redshift distributio…
Gluino Contribution to Radiative B Decays: Organization of QCD Corrections and Leading Order Results
F. Borzumati, C. Greub, T. Hurth +1
The gluino-induced contributions to the decay b-> s gamma are investigated in supersymmetric frameworks with generic sources of flavour violation. It is shown that, when QCD correc…
A New Measurement of the Rare Decay
H. Ma, R. Appel, G. S. Atoyan +25
More than 400 events were observed in a rare decay experiment at the AGS. Normalized to the decay, the branching ratio is determin…
Perturbation theory for self-gravitating gauge fields I: The odd-parity sector
Olivier Sarbach, Markus Heusler, Othmar Brodbeck
A gauge and coordinate invariant perturbation theory for self-gravitating non-Abelian gauge fields is developed and used to analyze local uniqueness and linear stability properties…
Configuration spaces and Vassiliev classes in any dimension
Alberto S. Cattaneo, Paolo Cotta-Ramusino, Riccardo Longoni
The real cohomology of the space of imbeddings of S^1 into R^n, n>3, is studied by using configuration space integrals. Nontrivial classes are explicitly constructed. As a by-produ…
A Spin-1/2 Model for CsCuCl_3 in an External Magnetic Field
A. Honecker, M. Kaulke, K. D. Schotte
CsCuCl_3 is a ferromagnetically stacked triangular spin-1/2 antiferromagnet. We discuss models for its zero-temperature magnetization process. The models range from three antiferro…
Relative torsion
D. Burghelea, Leonid Friedlander, T. Kappeler
This paper achieves, among other things, the following: 1)It frees the main result of [BFKM] from the hypothesis of determinant class and extends this result from unitary to arbitr…
Microlensing towards different Galactic targets
Lukas Grenacher, Philippe Jetzer, Marcus Strässle +1
We calculate the optical depth and the number of events due to gravitational microlensing towards the Galactic bulge, the spiral arm directions Scutum, Scutum, Normae,…
Measurement of Open Beauty Production at HERA
H1 Collaboration, C. Adloff
The first observation of open b production in ep collisions is reported. An event sample containing muons and jets has been selected which is enriched in semileptonic b quark decay…
Two-point function of strangeness-carrying vector-currents in two-loop Chiral Perturbation Theory
Stephan Dürr, Joachim Kambor
We present our calculation of the correlator between two external vector-currents with the quantum-numbers of a charged kaon. The renormalized expression to $O(p…