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Dec 04, 2012

Two-point Correlator Fits on HISQ Ensembles

We present our methods to fit the two point correlators for light, strange, and charmed pseudoscalar meson physics with the highly improved staggered…
Jun 10, 2008

Probes and Tests of Strong-Field Gravity with Observations in the E…

Neutron stars and black holes are the astrophysical systems with the strongest gravitational fields in the universe. In this article, I review the pr…
Oct 31, 2012

Pseudoscalar meson physics with four dynamical quarks

We present preliminary results for light, strange and charmed pseudoscalar meson physics from simulations using four flavors of dynamical quarks with…
Oct 10, 2013
Materials Science
Mesoscale and Nanoscale Physics

Optical characterization of electron-phonon interactions at the saddl…

The role of electron-phonon interactions is experimentally and theoretically investigated near the saddle point absorption peak of graphene. The diff…
Dec 26, 2017

$B$- and $D$-meson leptonic decay constants from four-flavor lattice …

We calculate the leptonic decay constants of heavy-light pseudoscalar mesons with charm and bottom quarks in lattice quantum chromodynamics on four-f…
Jan 04, 2012

Masses of Nearby Supermassive Black Holes with Very-Long Baseline I…

Dynamical mass measurements to date have allowed determinations of the mass M and the distance D of a number of nearby supermassive black holes. In t…
Jan 31, 2008

We have proved the factorization of two-jet event shape distributions in soft collinear effective theory without assuming the factorization of hadronic final states into separate colored collinear and soft sectors as in previous discussions. To do t…

Factorization of e+e- Event Shape Distributions with Hadronic Final …

We present a new analysis of two-jet event shape distributions in soft collinear effective theory. Extending previous results, we observe that a larg…
Jun 13, 2013

Dynamical Dark Matter and the Positron Excess in Light of AMS

The AMS-02 experiment has recently released data which confirms a rise in the cosmic-ray positron fraction as a function of energy up to approximatel…
Jun 18, 2008

Obscuring Active Galactic Nuclei with Nuclear Starburst Disks

We assess the potential of nuclear starburst disks to obscure the Seyfert-like AGN that dominate the hard X-ray background at z~1. Over 1200 starburs…
Feb 24, 2009

String Theory at LHC Using Top Quarks From String Balls

According to string theory, string ball is a highly excited long string which decays to standard model particles at the Hagedorn temperature with the…
May 15, 2008

B-Physics Observables and Electroweak Precision Data in the CMSSM, mG…

We explore electroweak precision observables (EWPO) and $B$-physics observables (BPO) in the CMSSM, the mGMSB and the mAMSB. We perform a chi^2 analy…
Jul 21, 2007

The Accretion Geometry in Radio-Loud Active Galaxies

We review the latest attempts to determine the accretion geometry in radio-loud active galactic nuclei (AGN). These objects, which comprise ~10-20% o…
Apr 27, 2017

Nuclear response Functions with Realistic Interactions

Linear density response functions are calculated for symmetric nuclear matter of normal density by time-evolving two-time Green's functions in real t…
Jan 12, 2012

On the capture of dark matter by neutron stars

We calculate the number of dark matter particles that a neutron star accumulates over its lifetime as it rotates around the center of a galaxy, when …
Feb 04, 2015

Perturbative charm production and the prompt atmospheric neutrino flu…

We re-evaluate the prompt atmospheric neutrino flux, using the measured charm cross sections at RHIC and the Large Hadron Collider to constrain pertu…
Feb 04, 2016
Atomic Physic
Optics

Attosecond Transient Absorption in Dense Gases: Exploring the Interpl…

We investigate the evolution of extreme ultraviolet (XUV) spectral lineshapes in an optically-thick helium gas under near-infrared (IR) perturbation.…
Dec 13, 2013

White Dwarf based evaluation of the GALEX absolute calibration

This paper describes a revised photometric calibration of the \emph{Galaxy Evolution Explorer} magnitudes, based on measurements of DA white dwarfs. …
Aug 24, 2010

Testing the No-Hair Theorem with Observations of Black Holes in the …

According to the no-hair theorem, astrophysical black holes are uniquely described by their mass and spin. In this paper, we review a new framework f…
Mar 17, 2010

Testing the No-Hair Theorem with Observations in the Electromagnetic …

According to the no-hair theorem, an astrophysical black hole is uniquely described by only two quantities, the mass and the spin. In this series of …
Nov 22, 2016

Decay constants $f_B$ and $f_{B_s}$ and quark masses $m_b$ and $m_c$ …

We present a progress report on our calculation of the decay constants $f_B$ and $f_{B_s}$ from lattice-QCD simulations with highly-improved staggere…
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