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DARWIN: towards the ultimate dark matter detector
DARk matter WImp search with liquid xenoN (DARWIN(2)) will be an experiment for the direct detection of dark matter using a multi-ton liquid xenon time projection chamber at its core. Its primary g…
The Age of Globular Clusters in Light of Hipparcos: Resolving the Age Problem?
We review five independent techniques that are used to set the distance scale to globular clusters, including subdwarf main-sequence fitting utilizing the recent Hipparcos parallax catalog. These…
Age Estimates of Globular Clusters in the Milky Way: Constraints on Cosmology
The 95% confidence level lower limit on the age of the Universe of 11.2 billion years means that the three fundamental observables in cosmology now independently support the case for a dark energy–dominated Universe.
CMBPol Mission Concept Study Probing Ination with CMB Polarization
We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of ination. We focus on the prospects for using CMB measurements
Space, the final frontier?
- L. Krauss
- PhysicsScientific American
- 1 October 2009
The article examines the reasons why the U.S. National Aeronautics & Space Administration (NASA) wants to return to the moon. 2009 marked the 40th anniversary of two events in space exploration,…
A Lower Limit on the Age of the Universe
A detailed numerical study was designed and conducted to estimate the absolute age and the uncertainty in age (with confidence limits) of the oldest globular clusters in our galaxy, and hence to put…
The cosmological constant is back
A diverse set of observations now compellingly suggest that the universe possesses a nonzero cosmological constant. In the context of quantum-field theory a cosmological constant corresponds to the…
An accurate relative age estimator for globular clusters
General analysis of direct dark matter detection: From microphysics to observational signatures
- J. Dent, L. Krauss, J. Newstead, Subir Sabharwal University of Louisiana at Lafayette, A. S. University, A. N. University
- 12 May 2015
Beginning with a set of simplified models for spin-0, spin- 1 , and spin-1 dark matter candidates using completely general Lorentz invariant and renormalizable Lagrangians, we derive the full set of…
Reheating predictions in single field inflation
Reheating is a transition era after the end of inflation, during which the inflaton is converted into the particles that populate the Universe at later times. No direct cosmological observables are…