activity
19982026
most citedA low level of extragalactic background light as revealed by gamma-rays from blazars

547 citations · 7.4k across the 70 of their papers we have counts for

collaborators
Showing 2004Show all

7 papers · 1 filter

physics.ins-det2004★ 13 cited

The Outer Tracker Detector of the HERA-B Experiment. Part II: Front-End Electronics

H. Albrecht et al.

The HERA-B Outer Tracker is a large detector with 112674 drift chamber channels. It is exposed to a particle flux of up to 2x10^5/cm^2/s thus coping with conditions similar to thos…

astro-ph2004★ 153 cited

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…

astro-ph2004★ 509 cited

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…

hep-ex2004★ 74 cited

Limits for the central production of Theta^+ and Xi^{--} pentaquarks in 920 GeV pA collisions

B Collaboration, I. Abt

We have searched for Theta^+(1540) and Xi^{--}(1862) pentaquark candidates in proton-induced reactions on C, Ti and W targets at mid-rapidity and \sqrt{s} = 41.6 GeV. In 2x10^8 ine…

astro-ph2004★ 404 cited

Very high energy gamma rays from the direction of Sagittarius A*

H. E. S. S. Collaboration, :, F. Aharonian

We report the detection of a point-like source of very high energy (VHE) gamma-rays coincident within 1' of Sgr A*, obtained with the H.E.S.S. array of Cherenkov telescopes. The ga…

astro-ph2004★ 358 cited

Calibration of cameras of the H.E.S.S. detector

H. E. S. S. Collaboration, :, F. Aharonian

H.E.S.S. - the High Energy Stereoscopic System- is a new system of large atmospheric Cherenkov telescopes for GeV/TeV astronomy. Each of the four telescopes of 107 m^2 mirror area…