Christoph Haber

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T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, J. A. Appel, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, B. Auerbach, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B.A. Barnett, P. Barria, P. Bartos, M. Bauce, G. Bauer, F. Bedeschi, D. Beecher, S. Behari,(More)
This paper describes the AC-coupled, single-sided, p-in-n silicon microstrip sensors used in the Semiconductor Tracker (SCT) of the ATLAS experiment at the CERN Large Hadron Collider (LHC). The sensor requirements, specifications and designs are discussed, together with the qualification and quality assurance procedures adopted for their production. The(More)
This paper describes the silicon microstrip modules in the barrel section of the SemiConductor Tracker (SCT) of the ATLAS experiment at the CERN Large Hadron Collider (LHC). The module requirements, components and assembly techniques are given, as well as first results of the module performance on the fully-assembled barrels that make up the detector being(More)
T. Affolder, H. Akimoto, A. Akopian, M. G. Albrow, P. Amaral, D. Amidei, K. Anikeev, J. Antos, G. Apollinari, T. Arisawa, A. Artikov, T. Asakawa, W. Ashmanskas, F. Azfar, P. Azzi-Bacchetta, N. Bacchetta, H. Bachacou, S. Bailey, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, S. Baroiant, M. Barone, G. Bauer, F. Bedeschi, S. Belforte, W. H.(More)
We report a measurement of the ratios of the decay rates of the B, B and B s mesons into exclusive final states containing a J/ψ meson. The final states were selected from 19.6 pb of pp̄ collisions recorded by the Collider Detector at Fermilab. These data are interpreted to determine the b quark fragmentation fractions fu, fd and fs. We also determine the(More)
Conductivity detection in CE has recently become available in a commercial CE instrument. The new conductivity cell is based on an end-capillary concept. The conductivity sensor and the detection end of the fused-silica capillary are permanently encapsulated in two individually modified coupling connectors (ConTip, ConCap [both from Orion Research, Boston,(More)
Capillary electrophoresis with conductivity detection is evaluated for quantitative analysis of anions at low- to sub-ppb concentration levels in the presence and absence of a conductive sample matrix composed of 2 ppm ammonia and 50 ppb hydrazine. The low-level sensitivity is extended by a transient isotachophoretic stacking procedure. The linear range of(More)
The ATLAS Semiconductor Tracker (SCT) consists of four barrel cylinders and 18 end-cap disks. This paper describes the SCT modules of the barrel region, of which more than 2000 are about to be constructed. The module design is fixed. Its design concept is given together with the electrical, thermal and mechanical specifications. The preseries production of(More)
T. Aaltonen, J. Adelman, T. Akimoto, M.G. Albrow, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, A. Apresyan, T. Arisawa, A. Artikov, W. Ashmanskas, A. Attal, A. Aurisano, F. Azfar, P. Azzurri, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, V. Bartsch, G. Bauer, P.-H. Beauchemin, F. Bedeschi, P.(More)