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23 papers · 1 filter
New Results on Precision Studies of Heavy Vector Boson Physics
B. F. L. Ward, C. Glosser, S. Jadach +4
We present new results for two important heavy vector boson physics processes: (1), virtual corrections to hard bremsstrahlung which are relevant to precision predictions for the r…
Quantum Corrections to Newton's Law in Resummed Quantum Gravity
B. F. L. Ward
We present the elements of resummed quantum gravity, a new approach to quantum gravity based on the work of Feynman using the simplest example of a scalar field as the representati…
Massive Elementary Particles and Black Hole Physics in Resummed Quantum Gravity
B. F. L. Ward
We use exact results in a new approach to quantum gravity to discuss some issues in black hole physics.
Threshold Corrections in Precision LHC Physics: QED otimes QCD
B. F. L. Ward, C. Glosser, S. Jadach +1
With an eye toward LHC processes in which theoretical precisions of 1 percent are desired, we introduce the theory of the simultaneous YFS resummation of QED and QCD to compute the…
Cosmology with Interaction between Phantom Dark Energy and Dark Matter and the Coincidence Problem
Rong-Gen Cai, Anzhong Wang
We study a cosmological model in which phantom dark energy is coupled to dark matter by phenomenologically introducing a coupled term to the equations of motion of dark energy and…
Baryon magnetic moments in the external field method
F. X. Lee, R. Kelly, L. Zhou +1
We present a calculation of the magnetic moments of the baryon octet and decuplet using the external field method and standard Wilson gauge and fermion actions in the quenched appr…
Threshold Corrections in QED otimes QCD at the LHC
B. F. L. Ward, C. Glosser, S. Jadach +1
In some processes at the LHC, theoretical precisions of 1 percent are desired. With an eye toward such precisions, we introduce the theory of the simultaneous YFS resummation of QE…
Massive Elementary Particles and Black Holes in Resummed Quantum Gravity
B. F. L. Ward
We use exact results in a new approach to quantum gravity to show that the classical conclusion that a massive elementary point particle is a black hole is obviated by quantum loop…
The Virtual Correction to Bremsstrahlung in High-Energy e+ e- Annihilation: Comparison of Exact Results
S. A. Yost, C. Glosser, S. Jadach +1
We have compared the virtual corrections to single hard bremsstrahlung as calculated by S. Jadach, M. Melles, B.F.L. Ward and S.A. Yost to several other expressions. The most recen…
Born-Infeld Black Holes in (A)dS Spaces
Rong-Gen Cai, Da-Wei Pang, Anzhong Wang
We study some exact solutions in a -dimensional Einstein-Born-Infeld theory with a cosmological constant. These solutions are asymptotically de Sitter or anti-de Sitter, d…
Second-Order Corrections to the Power Spectrum in the Slow-Roll Expansion with a Time-Dependent Sound Speed
Hao Wei, Rong-Gen Cai, Anzhong Wang
We extend Green's function method developed by Stewart and Gong to calculate the power spectrum of density perturbation in the case with a time-dependent sound speed, and explicitl…
Comparisons of Fully Differential Exact Results for O(alpha) Virtual Corrections to Single Hard Bremsstrahlung in e+e- Annihilation at High Energies
C. Glosser, S. Jadach, B. F. L. Ward +1
We present comparisons of the fully differential exact virtual correction to the important single hard bremsstrahlung process in e+e- annihilation at high energies, which is essent…
Collapsing Scalar Field with Kinematic Self-Similarity of the Second Kind in 2+1 Gravity
R. Chan, M. F. A. da Silva, J. F. Villas da Rocha +1
All the 2+1-dimensional circularly symmetric solutions with kinematic self-similarity of the second kind to the Einstein-massless-scalar field equations are found and their local a…
Self-Similar Collapse of Scalar Field with Plane Symmetry
Anzhong Wang, Yumei Wu, Zhong Chao Wu
Plane symmetric self-similar solutions to Einstein's four-dimensional theory of gravity are studied and all such solutions are given analytically in closed form. The local and glob…
Eta invariants with spectral boundary conditions
P. Gilkey, K. Kirsten, J. H. Park
We study the asymptotics of the heat trace $\Tr\{fPe^{-tP^2}\}$ where is an operator of Dirac type, where is an auxiliary smooth smearing function which is used to localize…
Thermodynamics and Stability of Hyperbolic Charged Black Holes
Rong-Gen Cai, Anzhong Wang
In AdS space the black hole horizon can be a hypersurface with a positive, zero or negative constant curvature, resulting in different horizon topology. Thermodynamics and stabilit…
Non-asymptotically AdS/dS Solutions and Their Higher Dimensional Origins
Rong-Gen Cai, Anzhong Wang
We look for and analyze in some details some exact solutions of Einstein-Maxwell-dilaton gravity with one or two Liouville-type dilaton potential(s) in an arbitrary dimension. Such…
QED \otimes QCD Threshold Corrections at the LHC
C. Glosser, S. Jadach, B. F. L. Ward +1
We use the theory of YFS resummation to compute the size of the expected resummed soft radiative threshold effects in precision studies of heavy particle production at the LHC, whe…
Functional determinants for general Sturm-Liouville problems
Klaus Kirsten, Alan J. McKane
Simple and analytically tractable expressions for functional determinants are known to exist for many cases of interest. We extend the range of situations for which these hold to c…
A Note on Curvature Fluctuation of Noncommutative Inflation
Rong-Gen Cai
An elegant approach, which incorporates the effect of the stringy spacetime uncertainty relation, to calculate power spectra of fluctuations during inflation has been suggested by…
Simulating Dust Lattice Waves in Plasma Crystals Using the Box_Tree Code
K. Qiao, T. W. Hyde
DAW and DLW modes within a dust crystal are examined using the Box_Tree code.
Precision Electro-Weak and Hadronic Luminosity Calculations
Scott A. Yost, Chris Glosser, B. F. L. Ward
We have used YFS Monte Carlo techniques to obtain per-mil level accuracy for the Bhabha scattering cross section used in the luminosity monitor in electro-weak scattering experimen…
Effects of the Charge-Dipole Interaction on the Coagulation of Fractal Aggregates
Lorin Swint Matthews, T. W. Hyde
A numerical model with broad applications to complex (dusty) plasmas is presented. The self-consistent N-body code allows simulation of the coagulation of fractal aggregates, inclu…