Kavli Affiliate: Radomir Smida | First 5 Authors: R. Smida, , , , | Summary: The Pierre Auger Observatory is the largest observatory of high-energy cosmic rays. It is located in Argentina and has been taking data since January 2004. Extensive air showers initiated by cosmic rays are measured by the hybrid detector, which combines […]
Kavli Affiliate: Austin Joyce | First 5 Authors: Austin Joyce, Justin Khoury, , , | Summary: For a single scalar field with unit sound speed minimally coupled to Einstein gravity, there are exactly three distinct cosmological solutions which produce a scale invariant spectrum of curvature perturbations in a dynamical attractor background, assuming vacuum initial conditions: […]
Kavli Affiliate: Jeffrey McMahon | First 5 Authors: Jeffrey M. McMahon, David M. Ceperley, , , | Summary: Superconductivity in the recently proposed ground-state structures of atomic metallic hydrogen is investigated over the pressure range 500 GPa to 3.5 TPa. Near molecular dissociation, the electron–phonon coupling $λ$ and renormalized Coulomb repulsion are similar to the […]
Kavli Affiliate: Jeffrey McMahon | First 5 Authors: Jeffrey M. McMahon, , , , | Summary: textit{Ab initio} random structure searching based on density functional theory is used to determine the ground-state structures of ice at high pressures. Including estimates of lattice zero-point energies, ice is found to adopt three novel crystal phases. The underlying […]
Kavli Affiliate: Jonathan Rosner | First 5 Authors: Jonathan L. Rosner, , , , | Summary: The reaction $e^+ e^- to (D_s^{*+} D_s^- + {rm c.c.})$ has been used with great success at the CLEO-c detector, and will be a source of valuable future data from the BES-III detector, to obtain information about the properties […]
Kavli Affiliate: Juan I. Collar | First 5 Authors: J. I. Collar, , , , | Summary: Savage et al. have recently put forward the claim that results from the XENON10 experiment are incompatible with the totality of both DAMA/LIBRA and CoGeNT experimental regions. In this brief note the source of this erroneous conclusion is […]
Kavli Affiliate: Craig J. Hogan | First 5 Authors: Craig J. Hogan, , , , | Summary: A theory of position of massive bodies is proposed that results in an observable quantum behavior of geometry at the Planck scale, $t_P$. Departures from classical world lines in flat spacetime are described by Planckian noncommuting operators for […]
Kavli Affiliate: Richard Kessler | First 5 Authors: Richard Kessler, Alex Conley, Saurabh Jha, Stephen Kuhlmann, | Summary: We have publicly released a blinded mix of simulated SNe, with types (Ia, Ib, Ic, II) selected in proportion to their expected rate. The simulation is realized in the griz filters of the Dark Energy Survey (DES) […]
Kavli Affiliate: Robert M. Wald | First 5 Authors: Robert M. Wald, , , , | Summary: The motion of sufficiently small body in general relativity should be accurately described by a geodesic. However, there should be “gravitational self-force” corrections to geodesic motion, analogous to the “radiation reaction forces” that occur in electrodynamics. It is […]
Kavli Affiliate: Carlos Wagner | First 5 Authors: Patrick Draper, Tao Liu, Carlos E. M. Wagner, , | Summary: We analyze the Tevatron reach for neutral Higgs bosons in the Minimal Supersymmetric Standard Model (MSSM), using current exclusion limits on the Standard Model Higgs. We study four common benchmark scenarios for the soft supersymmetry-breaking parameters […]