Kavli Affiliate: Ralf Kaehler | Summary:We describe an implementation of compressible inviscid fluid solvers with block-structured adaptive mesh refinement on Graphics Processing Units using NVIDIA’s CUDA. We show that a class of high resolution shock capturing schemes can be mapped naturally on this architecture. Using the method of lines approach with the second order total […]
Kavli Affiliate: Mark Vagins | Summary:This report provides the technical justification for locating a large detector underground in a US based Deep Underground Science and Engineering Laboratory. A large detector with a fiducial mass in the mega-ton scale will most likely be a multipurpose facility. The main physics justification for such a device is detection […]
Kavli Affiliate: Toshitake Kohno | Summary:We consider subgroups of the braid groups which are generated by $k$-th powers of the standard generators and prove that any infinite intersection (with even $k$) is trivial. This is motivated by some conjectures of Squier concerning the kernels of Burau’s representations of the braid groups at roots of unity. […]
Kavli Affiliate: Tomiyoshi Haruyama | Summary:Discussions in the taskforce meetings in the period of Jan.-Mar. 2009 on the technical possibility of the ultracold neutron (UCN) source at the Japan Proton Accelerator Research Complex (J-PARC) is summarized. | Search Query: arXiv Query: search_query=au:”Haruyama Tomiyoshi”&id_list=&start=0&max_results=10Read More
Kavli Affiliate: Mark Schattenburg | Summary:Low-mass pre-main sequence (PMS) stars are strong and variable X-ray emitters, as has been well established by EINSTEIN and ROSAT observatories. It was originally believed that this emission was of thermal nature and primarily originated from coronal activity (magnetically confined loops, in analogy with Solar activity) on contracting young stars. […]
Kavli Affiliate: Masayuki Nakahata | Summary:A high performance distillation system to remove krypton from xenon was constructed, and a purity level of Kr/Xe = $sim 3 times 10^-12$ was achieved. This development is crucial in facilitating high sensitivity low background experiments such as the search for dark matter in the universe. | Search Query: arXiv […]
Kavli Affiliate: Mark Hartz | Summary:Recent measurements of B hadron properties carried out in sqrt(s)=1.96 TeV p/p-bar collisions at the Tevatron are reviewed. Included are measurements of the Bc+ meson lifetime, using J/psi+l+X final states, and the mass, using J/psi+pi final states, a flavor specific measurement of the Bs0 lifetime in Ds+pi+X decays, simultaneous measurements […]
Kavli Affiliate: Patricia Burchat | Summary:(Abridged) We describe here the most ambitious survey currently planned in the optical, the Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a single wide-deep-fast sky survey, and LSST will have unique survey capability in the faint time domain. The LSST design is driven […]
Kavli Affiliate: John Belcher | Summary:Animated textures can be used to visualize the spatial structure and temporal evolution of vector fields at high spatial resolution. The animation requires two time-dependent vector fields. The first of these vector fields determines the spatial structure to be displayed. The second is a velocity field that determines the time […]
Kavli Affiliate: Robert Rosner | Summary:We develop and test spectral Galerkin schemes to solve the coupled Orr-Sommerfeld (OS) and induction equations for parallel, incompressible MHD in free-surface and fixed-boundary geometries. The schemes’ discrete bases consist of Legendre internal shape functions, supplemented with nodal shape functions for the weak imposition of the stress and insulating boundary […]