Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.6k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.4k papers
- Heidelberg UniversityDE1.3k papers
- Max Planck SocietyDE1.1k papers
- University of ZurichCH1.1k papers
- European Organization for Nuclear ResearchCH1k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR990 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL973 papers
- University of Maryland, College ParkUS940 papers
- Rutherford Appleton LaboratoryGB939 papers
- Institute for Nuclear ResearchRU922 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT912 papers
74 papers · 1 filter
Dissociative recombination and low-energy inelastic electron collisions of the helium dimer ion
H. B. Pedersen, H. Buhr, S. Altevogt +10
This paper reports results from an experimental investigation of the dissociative recombination (DR) of the helium dimer ions at the heavy-ion Test Storage Ring (TSR) in Heidelberg…
"Safe" Coulomb Excitation of 30Mg
O. Niedermaier, H. Scheit, V. Bildstein +9
We report on the first radioactive beam experiment performed at the recently commissioned REX-ISOLDE facility at CERN in conjunction with the highly efficient gamma spectrometer MI…
Parametric Level Correlations in Random-Matrix Models
Hans A. Weidenmueller
We show that parametric level correlations in random-matrix theories are closely related to a breaking of the symmetry between the advanced and the retarded Green's functions. The…
Significance in gamma-ray astronomy - the Li & Ma problem in Bayesian statistics
S. Gillessen, H. L. Harney
The significance of having detected an astrophysical gamma ray source is usually calculated by means of a formula derived by Li & Ma in 1983. We solve the same problem in terms of…
H.E.S.S. Observations of PKS 2155-304
The H. E. S. S. Collaboration, :, F. Aharonian
The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.117 has been detected with high significance (~45 sigma) at energies greater than 160 GeV, using the H.E.S.S. stereosc…
High-energy particle acceleration in the shell of a supernova remnant
H. E. S. S. Collaboration, :, F. Aharonian
A significant fraction of the energy density of the interstellar medium is in the form of high-energy charged particles (cosmic rays). The origin of these particles remains uncerta…
Electromagnetic radiation initiated by hadronic jets from microquasars in the ISM
V. Bosch-Ramon, F. A. Aharonian, J. M. Paredes
Microquasars are potential candidates to produce a non-negligible fraction of the observed galactic cosmic rays. The protons accelerated at the jet termination shock interact with…
A comparative study of the spatial distribution of ultraviolet and far-infrared fluxes from M 101
C. C. Popescu, R. J. Tuffs, B. F. Madore +23
The total ultraviolet (UV) flux (from 1412 to 2718 AA) of M 101 is compared on a pixel-to-pixel basis with the total far-infrared (FIR) flux (from 60 to 170 micron), using the maps…
Cosmogenic 11C production and sensitivity of organic scintillator detectors to pep and CNO neutrinos
C. Galbiati, A. Pocar, D. Franco +3
Several possible background sources determine the detectability of pep and CNO solar neutrinos in organic liquid scintillator detectors. Among such sources, the cosmogenic 11C nucl…
Nonrelativistic QED approach to the bound-electron g factor
K. Pachucki, U. D. Jentschura, V. A. Yerokhin
Within a systematic approach based on nonrelativistic quantum electrodynamics (NRQED), we derive the one-loop self-energy correction of order alpha (Zalpha)^4 to the bound-electron…
Kinetic Luminosity and Composition of Active Galactic Nuclei Jets
Kouichi Hirotani
We present a new method how to discriminate the matter content of parsec-scale jets of active galactic nuclei. By constraining the kinetic luminosity of a jet from the observed cor…
Toward high-precision values of the self energy of non-S states in hydrogen and hydrogen-like ions
Eric-Olivier Le Bigot, Ulrich D. Jentschura, Paul Indelicato +1
The method and status of a study to provide numerical, high-precision values of the self-energy level shift in hydrogen and hydrogen-like ions is described. Graphs of the self ener…
A low upper-limit on the lithium isotope ratio in HD140283
Wako Aoki, Susumu Inoue, Satoshi Kawanomoto +4
We have obtained a high-S/N (900-1100), high-resolving-power (R=95000) spectrum of the metal-poor subgiant HD 140283 in an effort to measure its 6Li/7Li isotope ratio. From a 1-D a…
Two-Loop Bethe Logarithms for Higher Excited S Levels
Ulrich D. Jentschura
Processes mediated by two virtual low-energy photons contribute quite significantly to the energy of hydrogenic S states. The corresponding level shift is of the order of (alpha/pi…
Far-infrared and sub-mm observations of the Crab nebula
D. A. Green, R. J. Tuffs, C. C. Popescu
We present FIR and sub-mm images of the Crab nebula, taken with ISOPHOT on board ISO and with the SCUBA on the JCMT. The ISOPHOT observations were made at 60, 100, 170 micron, with…
PCAC and Shadowing of Low Energy Neutrinos
B. Z. Kopeliovich
The Adler relation between reactions initiated by neutrinos and pions is easy to misinterpret as a manifestation of the pion pole dominance. An axial current, however, cannot fluct…
Time Evolution of Hadronization and Grey Tracks in DIS off Nuclei
C. Ciofi degli Atti, B. Z. Kopeliovich
The analysis of the grey tracks produced in Deep Inelastic Scattering (DIS) off nuclei provides important information on the space-time development of hadronization in nuclear medi…
Magnetic Field Amplification in Tycho and other Shell-type Supernova Remnants
H. J. Voelk, E. G. Berezhko, L. T. Ksenofontov
It is shown that amplification of the magnetic field in supernova remnants (SNRs) occurs in all six objects where morphological measurements are presently available in the hard X-r…
Radiation spectra of laser-driven quantum relativistic electrons
Guido R. Mocken, Christoph H. Keitel
A procedure to calculate the radiation spectrum emitted by an arbitrarily prepared Dirac wave packet is developed. It is based on the Dirac charge current and classical electrodyna…
The Trigger System of the H.E.S.S. Telescope Array
S. Funk, G. Hermann, J. Hinton +6
H.E.S.S. -- The High Energy Stereoscopic System-- is a new system of large atmospheric Cherenkov telescopes for GeV/TeV Gamma-ray astronomy. This paper describes the trigger system…
Optical properties of bialkali photocathodes
Dario Motta, Stefan Schoenert
The optical properties of the `bialkali' KCsSb and RbCsSb photomultiplier cathodes have been experimentally investigated in the visible range. The measurements carried out include…
High energy gamma rays from the massive black hole in the Galactic Center
Felix Aharonian, Andrii Neronov
Accreting black holes are believed to be sites of possible particle acceleration with favorable conditions also for effective gamma-ray production. However, because of photon-photo…
Correlated multi-electron dynamics in ultrafast laser pulse - atom interactions
A. Rudenko, K. Zrost, B. Feuerstein +4
We present the results of the detailed experimental study of multiple ionization of Ne and Ar by 25 and 7 fs laser pulses. For Ne the highly correlated "instantaneous" emission of…
Resonant Structures in the Low-Energy Electron Continuum for Single Ionization of Atoms in the Tunneling Regime
A. Rudenko, K. Zrost, C. D. Schröter +4
We present results of high-resolution experiments on single ionization of He, Ne and Ar by ultra-short (25 fs, 6 fs) 795 nm laser pulses at intensities 0.15-2.0x10^15 W/cm^2. We sh…