The ATLAS central level-1 trigger logic and TTC system (2008)
Ask, S, Berge, D, Borrego-Amaral, P, Caracinha, D, Ellis, Nick, Farthouat, P, ...
The ATLAS central level-1 trigger logic consists in the Central Trigger Processor and the interface to the detector-specific muon level-1 trigger electronics. It is responsible for forming a level-1...
Large uniaxial negative thermal expansion in pentacene due to steric hindrance (2007)
Haas, S., Batlogg, B., Besnard, C., Schiltz, M., Kloc, C., Siegrist, T.
Large Negative Thermal Expansion in Pentacene due to Steric Hindrance (2007)
Haas, S., Batlogg, B., Besnard, C., Schiltz, M., Kloc, C., Siegrist, T.
The uniaxial negative thermal expansion in pentacene crystals along $a$ is a particularity in the series of the oligoacenes, and exeptionally large for a crystalline solid. Full x-ray structure...
High charge-carrier mobility and low trap density in a rubrene derivative (2007)
Haas, S., Stassen, A. F., Schuck, G., Pernstich, K. P., Gundlach, D. J., Batlogg, B., ...
We have synthesized, crystallized and studied the structural and electric transport properties of organic molecular crystals based on a rubrene derivative with {\em t}-butyl sidegroups at the 5,11...
Commissioning of the ATLAS Level-1 Central Trigger (2007)
Pauly, T, Ask, S, Berge, D, Ellis, Nick, Farthouat, P, Gällnö, P, ...
The ATLAS Level-1 Central Trigger consists of the Central Trigger Processor (CTP) and the Muon-to-CTP-Interface (MUCTPI). The CTP receives trigger information from the Level-1 Calorimeter Trigger...
The second level trigger of the ATLAS experiment at CERN's LHC (2007)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
The ATLAS Level-1 Trigger: Status of the System and First Results from Cosmic-Ray Data (2007)
Berge, D, Aielli, G, Andrei, V, Achenbach, R, Adragna, P, Aloisio, A, ...
The ATLAS detector at CERN's Large Hadron Collider (LHC) will be exposed to proton-proton collisions from beams crossing at 40 MHz. At the design luminosity of 10^34 cm^-2 s^-1 there are on average...
The second level trigger of the ATLAS experiment at CERN's LHC (2007)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
The second level trigger of the ATLAS experiment at CERN's LHC (2007)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Hamma, A., Zhang, W., Haas, S., Lidar, D. A.
We present a numerical study of a quantum phase transition from a spin-polarized to a topologically ordered phase in a system of spin-1/2 particles on a torus. We demonstrate that this...
Krellner, C., Haas, S., Goldmann, C., Pernstich, K. P., Gundlach, D. J., Batlogg, B.
The density of trap states in the bandgap of semiconducting organic single crystals has been measured quantitatively and with high energy resolution by means of the experimental method of...
G. Zehl, G. Schmithals, A. Hoell, S. Haas, Ch. Hartnig, ...
Journal article
G. Zehl, G. Schmithals, A. Hoell, S. Haas, Ch. Hartnig, ...
Journal article
Testing on a Large Scale (2006)
Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Albuquerque-Portes, M, Alexandrov, L, Amorim, A, ...
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...
Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Alexandrov, L, Amorim, A, Armstrong, S, ...
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...
Gossamer superconductivity, new paradigm? (2006)
Won, H., Haas, S., Maki, K., Parker, D., Dora, B., Virosztek, A.
The first-level trigger of ATLAS (2005)
Haller, J, Achenbach, R, Aielli, G, Aloisio, A, Alviggi, M G, Aprodu, V, ...
Due to the huge interaction rates and the tough experimental environment of pp collisions at a centre-of-mass energy sqrt(s)=14 TeV and luminosities of up to 10^34cm^-2s^-1, one of the experimental...
New World of Gossamer Superconductivity (2005)
Maki, K., Haas, S., Parker, D., Won, H., Dora, B., Virosztek, A.
Since the discovery of the high-T$_{c}$ cuprate superconductor La$_{2-x}$BaCuO$_{4}$ in 1986 by Bednorz and M\"{u}ller, controversy regarding the nature or origin of this remarkable superconductivity...
Gossamer Superconductivity, New Paradigm? (2005)
Won, H., Haas, S., Maki, K., Parker, D., Dora, B., Virosztek, A.
We shall review our recent works on d-wave density wave (dDW) and gossamer superconductivity (i.e. d-wave superconductivity in the presence of dDW) in high-T$_{c}$ cuprates and CeCoIn$_{5}$. a) We...
Zink, D, Salowsky, R, Haas, S, Buhlmann, C, Korn, B
No abstract available.
Topological defects in triplet superconductors UPt$_{3}$, Sr$_{2}$RuO$_{4}$, etc (2005)
Maki, K., Haas, S., Parker, D., Won, H.
After a brief introduction on nodal superconductors, we review the topological defects in triplet superconductors such as UPt$_{3}$, Sr$_{2}$RuO$_{4}$, etc. This is in part motivated by the...
Scaling Relations in the Triplet Superconductor PrOs4Sb12 (2005)
Won, H., Haas, S., Parker, D., Maki, K.
Scaling relations are one of the hallmarks of nodal superconductivity since they contain information characteristic for gapless order parameters. In this paper we derive the scaling relations for the...
BCS theory of nodal superconductors (2005)
Won, H., Haas, S., Parker, D., Telang, S., Vanyolos, A., Maki, K.
This course has a dual purpose. First we review the successes of the weak-coupling BCS theory in describing new classes of superconductors discovered since 1979. They include the heavy-fermion...
Design and Performance of a PCI Interface with four 2 Gbit/s Serial Optical Links (2004)
A reconfigurable PCI interface card (FILAR) with four on-board high-speed serial optical links has been developed for application in DAQ and test systems. FILAR cards, installed in low cost PCs, are...
Pernstich, K. P., Rashid, A. N., Haas, S., Schitter, G., Oberhoff, D., Goldmann, C., ...
We demonstrate controllable shift of the threshold voltage and the turn-on voltage in pentacene thin film transistors and rubrene single crystal field effect transistors (FET) by the use of nine...
The IEEE 1355 Standard. Developments, performance and application in high energy physics (2004)
The data acquisition systems of the next generation High Energy Physics experiments at the Large Hadron Collider (LHC) at CERN will rely on high-speed point-to-point links and switching networks for...
Panorama of Nodal Superconductors (2004)
Won, H., Jang, H., Parker, D., Haas, S., Maki, K.
Since 1979, many new classes of superconductors have been discovered, including heavy-fermion compounds, organic conductors, high-Tc cuprates, and Sr2RuO4. Most of these superconductors are...
Upper critical field and Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 (2004)
Won,H., Maki,K., Haas,S., Oeschler,N., Weickert,F., Gegenwart,P.
Hole mobility in organic single crystals measured by a "flip-crystal" field-effect technique (2004)
Goldmann, C., Haas, S., Krellner, C., Pernstich, K. P., Gundlach, D. J., Batlogg, B.
We report on single crystal high mobility organic field-effect transistors (OFETs) prepared on prefabricated substrates using a "flip-crystal" approach. This method minimizes crystal handling and...
Steuerung einer 3-Achsen Scheimpflugadapters mit Servomotoren (2004)
In der vorliegenden Arbeit wurde eine voll funktionsfähige Steuerung zur motorischen Verstellung des räumlichen Scheimpflugwinkels von Lugada II projektiert und praktisch aufgebaut. Die Verstellung...
Upper critical field and Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 (2004)
Won, H., Maki, K., Haas, S., Oeschler, N., Weickert, F., Gegenwart, P.
The baseline dataflow system of the ATLAS trigger and DAQ (2003)
Vermeulen, J C, Abolins, M, Dos Anjos, A, Barisonzi, M, Beck, H P, Beretta, M, ...
In this paper the baseline design of the ATLAS High Level Trigger and Data Acquisition system with respect to the DataFlow aspects, as presented in the recently submitted ATLAS Trigger/DAQ/Controls...
Experience with multi-threaded C++ applications in the ATLAS DataFlow software (2003)
Gadomski, S, Abolins, M, Barisonzi, M, Beck, H P, Beretta, M, Blair, R, ...
The DataFlow is sub-system of the ATLAS data acquisition responsible for the reception, buffering and subsequent movement of partial and full event data to the higher level triggers: Level 2 and...
Experience with multi-threaded C++ applications in the ATLAS DataFlow software (2003)
Gadomski, S, Abolins, M, Barisonzi, M, Beck, H P, Beretta, M, Blair, R, ...
The DataFlow is sub-system of the ATLAS data acquisition responsible for the reception, buffering and subsequent movement of partial and full event data to the higher level triggers: Level 2 and...
Takeya, J., Goldmann, C., Haas, S., Pernstich, K. P., Ketterer, B., Batlogg, B.
A method has been developed to inject mobile charges at the surface of organic molecular crystals, and the DC transport of field-induced holes has been measured at the surface of pentacene single...
Mutations in the polyglutamine binding protein 1 gene cause X-linked mental retardation (2003)
Kalscheuer, V., Freude, K., Musante, L., Jensen, L. R., Yntema, H., Gecz, J., ...
Mutations in the polyglutamine binding protein 1 gene cause X-linked mental retardation (2003)
Kalscheuer, V., Freude, K., Musante, L., Jensen, L. R., Yntema, H., Gecz, J., ...
NLTE Spectral Analysis of Iron Group Elements in the Hot Subluminous O-star BD+28 4211. (2003)
Ramspeck, M., Haas, S., Napiwotzki, R., Heber, U., Deetjen, J., Dreizler, S.
IEEE 802.3 Ethernet, Current Status and Future Prospects at the LHC (2000)
R. W. Dobinson, M. Dobson, S. Haas, B. Martin, M. J. Levine
The status of the IEEE 802.3 standard is reviewed and prospects for the future, including the new 10 Gigabit version of Ethernet, are discussed. The relevance of Ethernet for experiments at the CERN...
Order by disorder from non-magnetic impurities in a two-dimensional quantum spin liquid (2000)
Wessel, S., Normand, B., Sigrist, M., Haas, S.
We consider doping of non-magnetic impurities in the spin-1/2, 1/5-depleted square lattice. This structure, whose undoped phase diagram offers both magnetically ordered and spin-liquid ground states,...
IV-2 ultrafast coherent dynamics of radiatively coupled excitons in multiple quantum wells. (1999)
Kuhl, J., Hübner, M., Ammerlahn, D., Grote, B., Stroucken, T., Haas, S., ...
Superradiant exciton/light coupling in semiconductor heterostructures. Part 2. Experiments. (1999)
Kuhl, J., Hübner, M., Ammerlahn, D., Stroucken, T., Grote, B., Haas, S., ...
Superradiant Exciton - Light Couplin in Semiconductor Heterostructures - Theory. (1999)
Kramer, P., Stroucken, T., Haas, S., Grote, B., Koch, S. W., Hübner, M., ...
Masses and Other Parameters of the PostCommon Envelope Binary BE Ursae Majoris. (1999)
Ferguson, D.H., Liebert, J., Haas, S., Napiwotzki, R., James, T.A.
Emulation of the Level-2 trigger, architecture B, on the Macram'e Testbed (1998)
R. W. Dobinson, S. Haas, R. Heeley, B. Martin, J. A. Strong, D. A. Thornley
This note presents results obtained from emulating the second level trigger, architecture B, on the Macram'e Testbed. The five networks of architecture B were emulated separately on a 512 node Clos...
Hübner, M., Kuhl, J., Grote, B., Stroucken, T., Haas, S., Knorr, A., ...
Hübner, M., Kuhl, J., Haas, S., Stroucken, T., Koch, S. W., Hey, R., ...
Self-induced transmission on a free exciton resonance in a semiconductor. (1998)
Giessen, H., Knorr, A., Haas, S., Koch, S. W., Linden, S., Kuhl, J., ...
Haas, S., Stroucken, T., Hübner, M., Kuhl, J., Grote, B., Knorr, A., ...
Results from the Macramé 1024 Node IEEE 1355 Switching Network (1997)
S. Haas, D. A. Thornley, M. Zhu, R. W. Dobinson, R. Heeley, B. Martin
. We report on the construction of a 1024 node switching network using IEEE1355 DS-Link technology. The nodes are interconnected by a switching fabric based on the STC104 packet switch. The system...
M. Zhu, D. A. Thornley, J. Pech, B. Martin, N. H. Madsen, R. Heeley, ...
We report on the construction of a 1024 node switching network using IEEE 1355 DS link technology. The nodes are interconnected by a switching fabric based on the STC104 packet switch. The system has...
IEEE 1355 DS-Links: Electrical and Optical Transmission Media (1997)
S. Haas, R. W. Dobinson, B. Martin
Introduction The IEEE standard 1355 #1# de#nes the physical layers and logical protocols for a point-to-point serial interconnect, operating at speed ranges from 10#200 MBaud and 1 GBaud in copper...
The Macram'e 1024 Node Switching Network (1997)
S. Haas, D. A. Thornley, M. Zhu, R. W. Dobinson, B. Martin
. The work reported involves the construction of a large modular testbed using IEEE 1355 DS link technology. A thousand nodes will be interconnected by a switching fabric based on the STC104 packet...
The Macram'e 1024 Node Switching (1997)
S. Haas, D. A. Thornley, M. Zhu, R. W. Dobinson, B. Martin
The work reported involves the construction of a large modular testbed using IEEE 1355 DS link technology. A thousand nodes will be interconnected by a switching fabric based on the STC104 packet...
Results from the Macramé 1024 Node Switching Network (1997)
S. Haas, D. A. Thornley, M. Zhu, R. W. Dobinson, R. Heeley, B. Martin
Introduction Data acquisition and trigger systems for LHC experiments will depend critically on the use of high speed point to point links and packet switches [1,2]. A range of alternative...
Dynamical properties of the spin-Peierls compound \alpha'--NaV2O5 (1997)
Augier, D., Poilblanc, D., Haas, S., Delia, A., Dagotto, E.
Dynamical properties of the novel inorganic spin-Peierls compound \alpha'--NaV2O5 are investigated using a one-dimensional dimerized Heisenberg model. By exact diagonalizations of chains with up to...
Realization Of A 1000-Node High-Speed Packet Switching Network (1997)
R. W. Dobinson, B. Martin, S. Haas, R. Heeley, M. Zhu, J. Renner Hansen
Large data-switching networks are prominantly featured in future experimental proposals such as the High-Energy Physics programme for the Large Hadron Collider at CERN. The technology to support this...
The MacramÉ 1024 Node Switching Network: Status And Future Prospects (1997)
R. W. Dobinson, S. Haas, M. Zhu, B. Martin
Within the framework of the MACRAMÉ Esprit project a large switching network is being constructed using IEEE 1355 DS link technology. The final system will allow the systematic study of the...