629 research outputs found
Streamer suppression with SF6 in RPCs operated in avalanche mode
No full textWe show that the addition of small amounts of sulphur hexafluoride, SF6, to the present ATLAS baseline gas mixture C2H2F4/C4H10 has a very strong effect in suppressing the avalanche-to-streamer transition. An RPC of 50 x 50 cm(2) area, 2 mm gas gap was operated in pure avalanche, streamer-free mode in a voltage range of about 1 kV. The results of the test suggest that the observed fast signal could be interpreted as the sum of contributions of a number of primary saturated avalanches. (C) 1998 Elsevier Science B.V. All rights reserved
OBSERVATION OF TeV GAMMA RAYS FROM THE UNIDENTIFIED SOURCE HESS J1841-055 WITH THE ARGO-YBJ EXPERIMENT
No full textProc. VI Int. Workshop: Resistive Plate Chambers and Related Detectors
No full textCONTRIBUTED AND INVITED PAPER TO THE WORKSHOP CONCERNING THE PHYISCS OF THE DETECTOR, THE SIMULATIONS, SEVERAL TOPICS CONCERNING r&d, THE PERFORMANCEAND THE ELECTRONIC
A search for heavy leptons with e+e- colliding beams
No full textA search for heavy leptons has been carried out with the Frascati e+e− storage ring by looking for (μe) pairs. A lower mass limit of 1.15 GeV, with 95% confidence level, is obtained for various types of heavy leptons
RPC'99
No full textseveral contributed and invited papers concerning the physics, the performances and the electronics related to the RPC detecto
A Method Allowing Long Emulsion Exposures To High-energy Neutrinos Also In The Presence Of Intense Time Uncorrelated Background
No full textSearches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions
No full textResistive plate chambers and related detectors
No full textContributed and invited papers on issues concerning the performance, the quality and the timing of the Resistive Plate Chamber Detectors
Resistive plate chambers and related detectors.
No full textcontributions and invited papers on issues related to the gas detector
How and when auditory action effects impair motor performance
No full textMusic performance is characterized by complex cross-modal interactions, offering a remarkable window into training-induced long-term plasticity and multimodal integration processes. Previous research with pianists has shown that playing a musical score is affected by the concurrent presentation of musical tones. We investigated the nature of this audio-motor coupling by evaluating how congruent and incongruent cross-modal auditory cues affect motor performance at different time intervals. We found facilitation if a congruent sound preceded motor planning with a large Stimulus Onset Asynchrony (SOA −300 and −200 ms), whereas we observed interference when an incongruent sound was presented with shorter SOAs (−200, −100 and 0 ms). Interference and facilitation, instead of developing through time as opposite effects of the same mechanism, showed dissociable time-courses suggesting their derivation from distinct processes. It seems that the motor preparation induced by the auditory cue has different consequences on motor performance according to the congruency with the future motor state the system is planning and the degree of asynchrony between the motor act and the sound presentation. The temporal dissociation we found contributes to the understanding of how perception meets action in the context of audio-motor integration
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