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Hadron collider physics
No full textAn introduction to the techniques of analysis of hadron collider events is presented in the context of the quark-parton model. Production and decay of W and Z intermediate vector bosons are used as examples. The structure of the Electroweak theory is outlined. Three simple FORTRAN programs are introduced, to illustrate Monte Carlo calculation techniques. 25 refs
Hyperon beam physics
No full textAt this time two hyperon beams are operational, a neutral beam at Fermilab and a charged beam at CERN. Within a year a new charged- hyperon beam will be completed at Fermilab and be capable of exploiting a considerably higher energy and intensity range than the existing beams. The utilization of these beams in the next few years should provide significant advances in a number of areas. Systematic measurements of Lambda and Lambda production cross sections over a wide range of kinematic variables have been published, and a high statistics study of Xi /sup 0/ production, including A dependence and polarization, has been completed. Similar measurements for the charged hyperons are either planned or already in progress. The behavior of the Lambda polarization as a function of p/sub perpendicular to / out to GeV/c is planned for the Fermilab neutral beam
Prompt photon production at large pT in QCD beyond the leading order
No full textAurenche P, Douiri A, Baier R, Fontannaz M, Schiff D. Prompt photon production at large pT in QCD beyond the leading order. Physics letters B. 1984;140(1-2):87-92
Vibration-based energy harvesting with piezoelectrets having high d₃₁ activity
No full textSandwiched fluoroethylene propylene films with charged, parallel-tunnel voids between the layers, which exhibit high d31 piezoelectric activity, were designed. Stripes of such piezoelectrets were exposed to mechanical stress in length direction by a seismic mass excited to vibrations. Due to the piezoelectricity of the films, a current in a terminating resistor is generated. The harvested power across the resistor amounts to about 0.2 mW for a seismic mass of 2 g and an acceleration of 1 g. In comparison with other piezoelectret or with poly(vinylidene fluoride) harvesters, the generated power referred to equal acceleration and force, is significantly larger
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