منابع مشابه
Bubble Chamber Experiments on Charmed Particle Lifetimes
The three current bubble chamber experiments on charmed particle lifetimes are compared. Their most recently released results are discussed. Although single charmed decay vertices have been seen in bubble chambers before, this discussion will cover the three current experiments. Two are at CERN and the third at SLAC. All use bubble chambers with relatively high resolution photographic technique...
متن کاملContinuously Live Image Processor for Drift Chamber Track Segment Triggering
The first portion of the BABAR experiment Level 1 Drift Chamber Trigger pipeline is the Track Segment Finder (TSF). Using a novel method incorporating both occupancy and drift-time information, the TSF system continually searches for segments in the supercells of the full 7104-wire Drift Chamber hit image at 3.7 MHz. The TSF was constructed to operate in a potentially high beam-background envir...
متن کاملAcoustic Sensor Design for Dark Matter Bubble Chamber Detectors
Dark matter bubble chamber detectors use piezoelectric sensors in order to detect and discriminate the acoustic signals emitted by the bubbles grown within the superheated fluid from a nuclear recoil produced by a particle interaction. These sensors are attached to the outside walls of the vessel containing the fluid. The acoustic discrimination depends strongly on the properties of the sensor ...
متن کاملPerformance of a Rapid Cycling Hydrogen Bubble Chamber
A small hydrogen bubble chamber consisting of a convoluted bellows and driven by a loudspeaker-like coil expansion system was developed and tested to cycling rates of 90 Hz. (Submitted to Nucl. Instr . and Methods. ) * Work performed under the auspices of the U.S. Atomic Energy Commission. Present theory and research 192 indicate that under fairly conventional operating conditions in a hydrogen...
متن کاملRe-analysis of Some Bubble Chamber Data on Nn Annihilation
A re-analysis of some pp and pn data, at rest and in flight, obtained in bubble chamber experiments, is presented. The (ππ) and (KSKS) final states for the channels (2ππ) and (KSKSπ) are investigated. Evidence for a narrow meson resonance structure, cautiously suggested as f0(1500), is given. In the (π π) invariant mass distribution from pn annihilations in flight, using the method of differenc...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1957
ISSN: 0031-899X
DOI: 10.1103/physrev.107.1201