Search results for "SPHERICITY"
showing 10 items of 34 documents
"Table 21" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of Sphericity at cm energies 133, 161 and 172 GeV.
"Table 22" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of Sphericity at cm energy 183 GeV.
"Table 36" of "Properties of hadronic Z decays and test of QCD generators"
1992
Distribution of rapidity with respect to sphericity axis.
"Table 2" of "Properties of hadronic Z decays and test of QCD generators"
1992
Sphericity distribution.
"Table 1" of "Properties of hadronic Z decays and test of QCD generators"
1992
Sphericity distribution.
"Table 37" of "Properties of hadronic Z decays and test of QCD generators"
1992
Distribution of rapidity with respect to sphericity axis.
Colloquium: The Shape of Hadrons
2012
This Colloquium addresses the issue of the shape of hadrons and, in particular, that of the proton. The concept of shape in the microcosm is critically examined. Special attention is devoted to properly define the meaning of shape for bound-state systems of near massless quarks. The ideas that lead to the expectation of nonsphericity in the shape of hadrons, the calculations that predict it, and the experimental information obtained from recent high-precision measurements are examined. Particular emphasis is given to the study of the electromagnetic transition between the nucleon and its first excited state, the Δ(1232) resonance. The experimental evidence is critically examined and compare…
Influence of a density mismatch on TMPTMA shells nonconcentricity
2011
Some laser target designs require low-density organic foam shells to study fusion on the French high-power laser laser mega joule. Low-density trimethylolpropane trimethacrylate foam shells composed of C, H, and O, 2 mm diameter, 100-μm wall thickness, and 250 mg cm−3 density are synthesized by a microencapsulation technique using a droplet generator. These shells have to reach a sphericity higher than 99.9% and a nonconcentricity (NC) lower than 1%. The wall thickness variation is one of the most difficult specifications to meet. An important factor in reducing this defect is the density matching between the three phases of the emulsion at polymerization temperature. The influence of a den…
The pseudostationary mercury electrode
1998
Abstract A detailed study of the pseudostationary mercury electrode is presented, based on its use in LSV. Delay times ( t 1 ) as short as 20 ms can be employed; the drop area is still given by its classical expression, and minimization of the ohmic drop allows sweep rates of a few thousands of volts per second to be used. The conditions for pseudostationarity are given; the lower sweep rates utilizable are of the order of few tenths of volt per second. Reactant adsorption is considered, and zones where rehomogenization near the electrode surface is practically either 100 or 0% are defined in a plane log t 1 /log b O ( b O is the adsorption coefficient); the diffusional or surface character…
"Table 15" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Sphericity distribution. Corrected to final state particles.