Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.2k papers
- University of OxfordGB2.1k papers
- Johannes Gutenberg University MainzDE2.1k papers
- University of ManchesterGB2.1k papers
- Stockholm UniversitySE2k papers
- University of Science and Technology of ChinaCN1.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.8k papers
- Joint Institute for Nuclear ResearchRU1.7k papers
- University of BonnDE1.7k papers
- Indiana University BloomingtonUS1.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.6k papers
- Aix-Marseille UniversitéFR1.6k papers
119 papers · 1 filter
Disentangling the Hercules stream
T. Bensby, M. S. Oey, S. Feltzing +1
Using high-resolution spectra of nearby F and G dwarf stars, we have investigated the detailed abundance and age structure of the Hercules stream. We find that the stars in the str…
The world next door - Results in landscape topography
Ulf H. Danielsson, Niklas Johansson, Magdalena Larfors
Recently, it has become clear that neighboring multiple vacua might have interesting consequences for the physics of the early universe. In this paper we investigate the topography…
Measurement of the ppbar to ttbar production cross section at sqrt(s)=1.96 TeV in the fully hadronic decay channel
D0 Collaboration, V. Abazov
A measurement of the top quark pair production cross section in proton anti-proton collisions at an interaction energy of sqrt(s)=1.96 TeV is presented. This analysis uses 405 pb-1…
The Lorentz force in atmospheres of CP stars: Aurigae
D. Shulyak, G. Valyavin, O. Kochukhov +7
Several dynamical processes may induce considerable electric currents in the atmospheres of magnetic chemically peculiar (CP) stars. The Lorentz force, which results from the inter…
Chemical Abundance Analysis of the Extremely Metal-Poor Star HE 1300+0157
Anna Frebel, John E. Norris, Wako Aoki +5
We present a detailed chemical abundance analysis of HE 1300+0157, a subgiant with [Fe/H]=-3.9. From a high-resolution, high-S/N Subaru/HDS spectrum we find the star to be enriched…
Interaction of Ultracold Antihydrogen with a Conducting Wall
A. Yu. Voronin, P. Froelich, B. Zygelman
We investigate the interaction of ultracold antihydrogen with a conducting surface. Our discussion focuses on the physical regime where the phenomenon of quantum reflection manifes…
Square summability of variations and convergence of the transfer operator
Anders Johansson, Anders Öberg
In this paper we study the one-sided shift operator on a state space defined by a finite alphabet. Using a scheme developed by Walters [13], we prove that the sequence of iterates…
Non-Abelian generalization of off-diagonal geometric phases
David Kult, Johan Åberg, Erik Sjöqvist
If a quantum system evolves in a noncyclic fashion the corresponding geometric phase or holonomy may not be fully defined. Off-diagonal geometric phases have been developed to deal…
Asymptotic normality of the -core in random graphs
Svante Janson, Malwina J. Luczak
We study the -core of a random (multi)graph on vertices with a given degree sequence. In our previous paper [Random Structures Algorithms 30 (2007) 50--62] we used propertie…
Hyperkahler sigma models on cotangent bundles of Hermitian symmetric spaces using projective superspace
Masato Arai, Sergei M. Kuzenko, Ulf Lindstrom
Kahler manifolds have a natural hyperkahler structure associated with (part of) their cotangent bundles. Using projective superspace, we construct four-dimensional N = 2 models on…
Yang-Mills instanton as a quantum black hole
Sergey Slizovskiy
In terms of spin-charge separated variables, the Minkowski space Yang-Mills BPST instanton describes a locally conformally flat doubly-wrapped cigar manifold that can be viewed as…
T-duality and Generalized Complex Geometry
Jonas Persson
We find the explicit T-duality transformation in the phase space formulation of the N=(1,1) sigma model. We also show that the T-duality transformation is a symplectomorphism and i…
Associated charged Higgs and W boson production in the MSSM at the CERN Large Hadron Collider
David Eriksson, Stefan Hesselbach, Johan Rathsman
We investigate the viability of observing charged Higgs bosons (H^+/-) produced in association with W bosons at the CERN Large Hadron Collider, using the leptonic decay H^+ -> tau^…
Search for single production of scalar leptoquarks in p\bar{p} collisions decaying into muons and quarks with the D0 detector
D0 Collaboration, V. Abazov
We report on a search for second generation leptoquarks LQ_2 which decay into a muon plus quark in p\bar{p} collisions at a center-of-mass energy of sqrt{s} = 1.96 TeV in the D0 de…
Pulsation in the atmosphere of the roAp star HD 24712. I. Spectroscopic observations and radial velocity measurements
T. Ryabchikova, M. Sachkov, W. W. Weiss +10
We have investigated the structure of the pulsating atmosphere of one of the best studied rapidly oscillating Ap stars, HD 24712. For this purpose we analyzed spectra collected dur…
Chemical Homogeneity in Collinder 261 and Implications for Chemical Tagging
G. M. De Silva, K. C. Freeman, M. Asplund +3
This paper presents abundances for 12 red giants of the old open cluster Collinder 261 based on spectra from VLT/UVES. Abundances were derived for Na, Mg, Si, Ca, Mn, Fe, Ni, Zr an…
Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope
A. Achterberg
We report the results of a five-year survey of the northern sky to search for point sources of high energy neutrinos. The search was performed on the data collected with the AMANDA…
Computing Amplitudes in topological M-theory
Giulio Bonelli, Alessandro Tanzini, Maxim Zabzine
We define a topological quantum membrane theory on a seven dimensional manifold of holonomy. We describe in detail the path integral evaluation for membrane geometries given…
Worldsheet Scattering in AdS_5 x S^5
Thomas Klose, Tristan McLoughlin, Radu Roiban +1
We calculate the S-matrix in the gauge-fixed sigma-model on AdS_5 x S^5 to the leading order in perturbation theory, and analyze how supersymmetry is realized on the scattering sta…
Measurement of the ttbar production cross section in pbarp collisions at sqrt(s) = 1.96 TeV using secondary vertex b tagging
D0 Collaboration, V. Abazov
We report a new measurement of the ttbar production cross section in pbarp collisions at a center-of-mass energy of 1.96 TeV using events with one charged lepton (electron or muon)…
Dense-Timed Petri Nets: Checking Zenoness, Token liveness and Boundedness
Parosh Abdulla, Pritha Mahata, Richard Mayr
We consider Dense-Timed Petri Nets (TPN), an extension of Petri nets in which each token is equipped with a real-valued clock and where the semantics is lazy (i.e., enabled transit…
Hercules stream stars and the metal-rich thick disk
T. Bensby, M. S. Oey, S. Feltzing +1
Using the MIKE spectrograph, mounted on the 6.5 m Magellan/Clay telescope at the Las Campanas observatory in Chile, we have obtained high-resolution spectra for 60 F and G dwarf st…
Theory of quasiparticle spectra for Fe, Co, and Ni: bulk and surface
Alexei Grechnev, Igor Di Marco, M. I. Katsnelson +3
The correlated electronic structure of iron, cobalt and nickel is investigated within the dynamical mean-field theory formalism, using the newly developed full-potential LMTO-based…
Study of Leading Hadrons in Gluon and Quark Fragmentation
The DELPHI Collaboration, J. Abdallah
The study of quark jets in e+e- reactions at LEP has demonstrated that the hadronisation process is reproduced well by the Lund string model. However, our understanding of gluon fr…