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
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39 papers · 1 filter
Molecules in a gravitational collapse
D. Puy, M. Signore
The study of primordial chemistry of molecules adresses a number of interesting questions pertaining to the thermal balance of collapsing molecular protoclouds. In numerous astroph…
Molecules at High Redshifts
D. Puy, M. Signore
After the recombination of Hydrogen, primordial molecules such as H_2, can be formed.The formation of structures in the post-recombination gaseous medium is commonly explained…
Measurement of D* Meson Cross Sections at HERA and Determination of the Gluon Density in the Proton using NLO QCD
C. Adloff
With the H1 detector at the ep collider HERA, D* meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers Q^2>2 GeV2 and in phot…
Magnetic Field Induced Phase Transitions in YBa2Cu4O8
T. Schneider, J. M. Singer
The -axis resistivity measurements in YBa_2Cu_4O_8 from Hussey et al. for magnetic field orientations along the c-axis as well as within the ab-plane are analyzed and interprete…
Thermodynamics of the t-J Ladder: A Stable Finite Temperature Density Matrix Renormalization Group Calculation
Beat Ammon, Matthias Troyer, T. M. Rice +1
Accurate numerical simulations of a doped t-J model on a two-leg ladder are presented for the particle number, chemical potential, magnetic susceptibility and entropy in the limit…
Magnetic Field induced Dimensional Crossover Phenomena in Cuprate Superconductors and their Implications
T. Schneider, J. M. Singer
We discuss the occurrence of crossing points in the magnetization - temperature ) plane within the framework of critical phenomena. It is shown that in a two-dimensional supe…
Fundamental constraints for the mechanism of superconductivity in cuprates
T. Schneider, J. M. Singer
Considerable progress has been made over the last decade in understanding the phenomenological properties of the cuprate high-T superconductors and in producing well characte…
Evolution of One-Particle and Double-Occupied Green Functions for the Hubbard Model at Half-Filling With Lifetime Effects Within The Moment Approach
S. Schafroth, J. J. Rodríguez-Núñez
We evaluate the one-particle and double-occupied Green functions for the Hubbard model at half-filling using the moment approach of Nolting. Our starting point is a self-energy, $Σ…
Comparing a statistical and a rule-based tagger for German
Martin Volk, Gerold Schneider
In this paper we present the results of comparing a statistical tagger for German based on decision trees and a rule-based Brill-Tagger for German. We used the same training corpus…
Historical and other Remarks on Hidden Symmetries
Norbert Straumann
Apart from a few remarks on lattice systems with global or gauge symmetries, most of this talk is devoted to some interesting ancient examples of symmetries and their breakdowns in…
Gravitating Non-Abelian Solitons and Black Holes with Yang-Mills Fields
Mikhail S. Volkov, Dmitri V. Gal'tsov
We present a review of gravitating particle-like and black hole solutions with non-Abelian gauge fields. The emphasis is given to the description of the structure of the solutions…
Early History of Gauge Theories and Kaluza-Klein Theories, with a Glance at Recent Developments
Lochlain O'Raifeartaigh, Norbert Straumann
One of the major developments of twentieth century physics has been the gradual recognition that a common feature of the known fundamental interactions is their gauge structure. In…
Forward Jet and Particle Production at HERA
C. Adloff
Single particles and jets in deeply inelastic scattering at low x are measured with the H1 detector in the region away from the current jet and towards the proton remnant, known as…
Einstein's Equations with Asymptotically Stable Constraint Propagation
Othmar Brodbeck, Simonetta Frittelli, Peter Huebner +1
We introduce a proposal to modify Einstein's equations by embedding them in a larger symmetric hyperbolic system. The additional dynamical variables of the modified system are esse…
Diffractive dijet production at HERA
C. Adloff
Interactions of the type ep -> eXY are studied, where the component X of the hadronic final state contains two jets and is well separated in rapidity from a leading baryonic system…
The Derivation of Deser's Formula and Electromagnetic Corrections to the Pionium Life Time
G. Rasche, A. Gashi
We give the modern derivation of Deser's formula using analytic continuation of the scattering amplitude as a function of momentum. The electromagnetic corrections to the pionium l…
New Bounds from Searching for Muonium to Antimuonium Conversion
L. Willmann, P. V. Schmidt, H. P. Wirtz +26
A new upper limit for the probability of spontaneous muonium to antimuonium conversion was established at (90%C.L.) in 0.1~T magnetic f…
Gravitational Microlensing by Globular Clusters
P. Jetzer, M. Strässle, U. Wandeler
Stars in globular clusters can act either as sources for MACHOs (Massive Astrophysical Compact Halo Objects) located along the line of sight or as lenses for more distant backgroun…
Lower Bounds on Charged Higgs Bosons from LEP and the TEVATRON
F. M. Borzumati, A. Djouadi
We point out that charged Higgs bosons can decay into final states different than and , even when they are light enough to be produced at LEPII or at the Tevat…
Experimental evidence for fast cluster formation of chain oxygen vacancies in YBa2Cu3O7-d being at the origin of the fishtail anomaly
Andreas Erb, Alfred A. Manuel, Marc Dhalle +13
We report on three different and complementary measurements, namely magnetisation measurements, positron annihilation spectroscopy and NMR measurements, which give evidence that th…
The Generalized Thin-Sandwich Problem and its Local Solvability
Domenico Giulini
We consider Einstein Gravity coupled to dynamical matter consisting of a gauge field with any compact gauge group and minimally coupled scalar fields. We investigate the conditions…
Improved upper limit on Muonium to Antimuonium Conversion
R. Abela, J. Bagaturia, W. Bertl +29
A new experiment has been set up at the Paul Scherrer Institut to search for muonium to antimuonium conversion. No event was found to fulfil the requested signature which consists…
On rotational excitations and axial deformations of BPS monopoles and Julia-Zee dyons
M. Heusler, N. Straumann, M. Volkov
It is shown that Julia-Zee dyons do not admit slowly rotating excitations. This is achieved by investigating the complete set of stationary excitations which can give rise to non-v…
Increased Sensitivity to Possible Muonium to Antimuonium Conversion
V. Meyer, A. Grossmann, K. Jungmann +23
A new experimental search for muonium-antimuonium conversion was conducted at the Paul Scherrer Institute, Villigen, Switzerland. The preliminary analysis yielded one event fulfill…