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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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80 papers · 1 filter
Quark-meson coupling model with short-range quark-quark interactions
Koichi Saito, Kazuo Tsushima
Short-range quark-quark correlations are introduced into the quark-meson coupling (QMC) model phenomenologically. We study the effect of the correlations on the structure of the nu…
Structure functions for the three nucleon system
F. Bissey, A. W. Thomas, I. R. Afnan
The spectral functions and light-cone momentum distributions of protons and neutrons in 3He and 3H are given in terms of the three-nucleon wave function for realistic nucleon-nucle…
The Deep X-ray Radio Blazar Survey (DXRBS). II. New Identifications
H. Landt, P. Padovani, E. Perlman +3
We have searched the archived, pointed ROSAT Position Sensitive Proportional Counter data for blazars by correlating the WGACAT X-ray database with several publicly available radio…
Can the Lambda pi scattering phase shifts be large?
Jusak Tandean, A. W. Thomas, G. Valencia
Motivated by the presence of nearby thresholds in other baryon-meson channels with I=1 and S=-1, we investigate whether the Lambda pi scattering phase shifts at a center-of-mass en…
Application of the synchrotron proton blazar model to BL Lac objects
R. J. Protheroe, A. Muecke
We apply the synchrotron proton blazar (SPB) model to the April 1997 flare of Markarian 501 and find we are able to fit the observed spectral energy distribution. We explore the ef…
Gamma Rays from Dark Matter
R. J. Protheroe
I give a brief review of high energy gamma-ray signatures of dark matter. The decay of massive -particles and subsequent hadronization have been suggested as the origin of the h…
On the Best Quadratic Approximation in Feynman's Path Integral Treatment of the Polaron
R. Rosenfelder, A. W. Schreiber
The best quadratic approximation to the retarded polaron action due to Adamowski {\it et al.} and Saitoh is investigated numerically for a wide range of coupling constants. The non…
Measurement of the Cosmic Ray Energy Spectrum and Composition from 10^{17} to 10^{18.3} eV Using a Hybrid Fluorescence Technique
T. Abu-Zayyad, K. Belov, D. J. Bird +44
We study the spectrum and average mass composition of cosmic rays with primary energies between 10^{17} eV and 10^{18} eV using a hybrid detector consisting of the High Resolution…
Does the weak coupling limit of the Burden-Tjiang deconstruction of the massless quenched QED3 vertex agree with perturbation theory?
A. Bashir, A. Kizilersu, M. R. Pennington
We derive constraints on the non-perturbative 3-point fermion-boson transverse vertex in massless QED3 from its perturbative calculation to order . We also check the transversal…
The Formation of non-Keplerian Rings of Matter about Compact Stars
S. P. Drake
The formation of energetic rings of matter in a Kerr spacetime with an outward pointing acceleration field does not appear to have previously been noted as a relativistic effect. I…
Supernovae Ia, evolution and quintessence
D. L. Wiltshire
Quintessence models with a dark energy generated by pseudo Nambu-Goldstone bosons provide a natural framework in which to test the possibility that type Ia supernovae luminosity di…
Regularization-independent studies of nonperturbative field theory
A. Kizilersu, A. W. Schreiber, A. G. Williams
We propose a regularization-independent method for studying a renormalizable field theory nonperturbatively through its Dyson-Schwinger equations. Using QED_4 as an example, we sho…
Hilbert C*-systems for actions of the circle group
H. Baumgaertel, A. L. Carey
The paper contains constructions of Hilbert systems for the action of the circle group using subgroups of implementable Bogoljubov unitaries w.r.t. Fock representations of the…
Nuclear shadowing in polarized DIS on ^6LiD at small x and its effect on the extraction of the deuteron spin structure function g_{1}^{d}(x,Q^2)
V. Guzey
We consider the effect of nuclear shadowing in polarized deep inelastic scattering (DIS) on ^6LiD at small Bjorken x and its relevance to the extraction of the deuteron spin struct…
On positivity of the Kadison constant and noncommutative Bloch theory
Varghese Mathai
In an earlier paper, we established a natural connection between the Baum-Connes conjecture and noncommutative Bloch theory, viz. the spectral theory of projectively periodic ellip…
Color coherent phenomena on nuclei and the QCD evolution equation
L. Frankfurt, V. Guzey, M. Strikman
We review the phenomenon of color coherence in quantum chromodynamics (QCD), its implications for hard and soft processes with nuclei, and its experimental manifestations. The rela…
Exact triangles in Seiberg-Witten Floer theory. Part IV: Z-graded monopole homology
Matilde Marcolli, Bai-Ling Wang
Some aspects of the construction of SW Floer homology for manifolds with non-trivial rational homology are analyzed. In particular, the case of manifolds that are obtained as zero-…
Exact triangles in Seiberg-Witten Floer theory. Part III: proof of exactness
Matilde Marcolli, Bai-Ling Wang
This is the third part of the work on the exact triangles. We construct chain homomorphisms and show exactness of the resulting sequence.
Southern Hemisphere Observations of a eV Cosmic Ray Source Near the Direction of the Galactic Centre
J. A. Bellido, R. W. Clay, B. R. Dawson +1
We report on an analysis of data from the southern hemisphere SUGAR cosmic ray detector. We confirm the existence of an excess of eV cosmic rays from a direction close to…
Enhanced Direct CP Violation in
X. -H. Guo, O. Leitner, A. W. Thomas
We study direct CP violation in the hadronic decay , including the effect of mixing. We find that the CP violating asymmetry is strongly dependent…
On the continuum limit of fermionic topological charge in lattice gauge theory
David H. Adams
It is proved that the fermionic topological charge of SU(N) lattice gauge fields on the 4-torus, given in terms of a spectral flow of the Hermitian Wilson--Dirac operator, or equiv…
Incorporating Chiral Symmetry and Heavy Quark Theory in Extrapolations of Octet Baryon Charge Radii
E. J. Hackett-Jones, D. B. Leinweber, A. W. Thomas
We extrapolate lattice calculations of electric charge radii of the spin-1/2 baryon octet to the physical regime. The extrapolation procedure incorporates chiral perturbation theor…
A remark on Schwarz's topological field theory
David H. Adams, Emil M. Prodanov
The standard evaluation of the partition function of Schwarz's topological field theory results in the Ray--Singer analytic torsion. Here we present an alternative evaluation w…
A Measurement of the Average Longitudinal Development Profile of Cosmic Ray Air Showers Between 10^{17}eV and 10^{18}eV
T. Abu-Zayyad et. al
The average extensive air shower longitudinal development profile as a function of shower age in the energy range from 10 to 10eV is measured using data from the hybr…