Power conversion in the Anaconda WEC

The Anaconda all-rubber WEC operates in a completely new way, transferring energy from water waves to bulge waves in a giant water-filled submerged rubber tube, aligned head-to-sea. Initial indications are that it offers advantages of low capital and operational costs, owing to its extreme simplicity and the unique durability of rubber (see www.bulgewave.com). This paper presents briefly the results of the first series of laboratory tests carried out on a model of the device, providing evidence of a capture width of between 3 and 4 diameters over a wide range of frequencies. Secondly we discuss a concept for a simple power take-off system

A new ring structure for muon (g-2) measurements

In a storage ring of discrete magnets with uniform field and edge focusing, the field averaged over the orbit can be independent of orbit radius (particle momentum). This ring is suitable for measuring the anomalous magnetic moment of the muon. The field, averaged over the orbit, can be calibrated by injecting transversely polarized protons of the same momentum and measuring the proton (g-2) precession. A measurement at the level of 0.03 ppm may be feasible.Comment: 4 pages, 2 figures, with more detail of tune calculatio

Constraining 2HDM by Present and Future Muon(g-2) Data

Constraints on the general 2HDM ("Model II") are obtained from the existing $(g-2)_{\mu}$ data including limits on Higgs bosons masses from LEP I data. We consider separately two cases: with a light scalar $h$ and with a light pseudoscalar $A$, assuming ${M_{h}+M_{A}} \ge {M_{Z}}$. The charged Higgs contribution is also included. It is found that already the present $(g-2)_{\mu}$ data improve limits obtained recently by ALEPH collaboration on \tb for the mass of the pseudoscalar below \mr 2 GeV. The improvement in the accuracy by factor 20 in the forthcoming E821 experiment may lead to more stringent, than provided by ALEPH group, limits up to $M_A\sim$ 30 GeV if the mass difference between $h$ and $A$ is $\sim M_Z$. Similar results should hold for a light scalar scenario as well.Comment: 19 pages, including 5 figure

News from the Muon (g-2) Experiment at BNL

The magnetic moment anomaly a_mu = (g_mu - 2) / 2 of the positive muon has been measured at the Brookhaven Alternating Gradient Synchrotron with an uncertainty of 0.7 ppm. The new result, based on data taken in 2000, agrees well with previous measurements. Standard Model evaluations currently differ from the experimental result by 1.6 to 3.0 standard deviations.Comment: Talk presented at RADCOR - Loops and Legs 2002, Kloster Banz, Germany, September 8-13 2002, to be published in Nuclear Physics B (Proc. Suppl.); 5 pages, 3 figure

Towards the european strategy for particle physics: The briefing book

This document was prepared as part of the briefing material for the Workshop of the CERN Council Strategy Group, held in DESY Zeuthen from 2nd to 6th May 2006. It gives an overview of the physics issues and of the technological challenges that will shape the future of the field, and incorporates material presented and discussed during the Symposium on the European Strategy for Particle Physics, held in Orsay from 30th January to 2nd February 2006, reflecting the various opinions of the European community as recorded in written submissions to the Strategy Group and in the discussions at the Symposium

The Search for the Sidereal and Solar Diurnal Modulations in the Total MACRO Muon Data Set

We have analyzed 44.3M single muons collected by MACRO from 1991 through 2000 in 2,145 live days of operation. We have searched for the solar diurnal, apparent sidereal, and pseudo-sidereal modulation of the underground muon rate by computing hourly deviations of the muon rate from 6 month averages. We find evidence for statistically significant modulations with the solar diurnal and the sidereal periods. The amplitudes of these modulations are <0.1%, and are at the limit of the detector statistics. The pseudo-sidereal modulation is not statistically significant. The solar diurnal modulation is due to the daily atmospheric temperature variations at 20 km, the altitude of primary cosmic ray interactions with the atmosphere; MACRO is the deepest experiment to report this result. The sidereal modulation is in addition to the expected Compton-Getting modulation due to solar system motion relative to the Local Standard of Rest; it represents motion of the solar system with respect to the galactic cosmic rays toward the Perseus spiral arm.Comment: 18 pages, 8 of which are figures, 1 is a table. Accepted by Phys. Rev.