U(1)$_A$ Models of Fermion Masses Without a $μ$ Problem
We discuss the connection between models of fermion masses and mixing involving a string-motivated flavor/generation U(1)$_A$ gauge symmetry and the
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U(1) Connection, Nonlinear Dirac-like Equations and Seiberg-Witten Equations
By analysing the work of Campolattaro we argue that the second Seiberg-Witten equation over the Spin^c_4 manifold, i.e., F^+_{ij}=< M,S_ij
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U(1) gauge theory over discrete space-time and phase transitions
We first apply Connes' noncommutative geometry to a finite point space. The explicit form of the action functional of U(1)
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U(1) Goldberger-Treiman Relation and Its Connection to the Proton Spin
The U(1) Goldberger-Treiman (GT) relation for the axial charge $g_A^0$ is reexamined. It is stressed that the isosinglet GT relation
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U(1) Lattice Gauge theory and its Dual
The three dimensional U(1) Lattice Gauge, in the weak coupling limit, is dual to a Discrete Gaussian model. We investigate
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U(1)XSU(2) Gauge theory of underdoped high Tc cuprates via Chern-Simons bosonization
We outline the basic ideas involved in a recently proposed derivation of a gauge theory for underdoped cuprates in the
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U-70 Proton Synchrotron Extracted Beam Lines Control System Modernization
A 70 GeV Proton Synchrotron Extracted Beam Lines Control System is described. About 130 Magnet Dipoles and Quadrupoles, 20 Correction
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U_A(1) Problems and Gluon Topology - Anomalous Symmetry in QCD
Many of the distinctive and subtle features of the dynamics in the $U_A(1)$ channel in QCD can be related to
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U-duality of Born-Infeld Theory
String theory compactified on a three-torus possesses an SL(5,Z) U-duality group. We investigate the realisation of this symmetry on the
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U Duality, Solvable Lie Algebras and Extremal Black-Holes
In this lecture I review recent results on the use of Solvable Lie Algebras as an efficient description of the
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Ultrafast collective dynamics of short-range charge/orbital ordering fluctuations in colossal magnetoresistive oxides
The "colossal magnetoresistive" (CMR) manganites are highly correlated systems with a strong coupling between spin, charge, orbital, and lattice degrees
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U(N) Gauge Model and Partial Breaking of N=2 Supersymmetry
We briefly review a construction of N=2 supersymmetric U(N) gauge model in which rigid N=2 supersymmetry is spontaneously broken to
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Uniqueness of a recently proposed U(1) gauge extension
Consider the addition of a right-handed SU(2) fermion multiplet (with neither color nor hypercharge) to each family of quarks and
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Unveiling Dark Matter with HI and Halpha Data - Observational Problems
We present combined Halpha+HI rotation curves for a sample of spiral galaxies. Most of the velocity profiles (spectra at single
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U-opportunities: why is ten equal to ten ?
It seems to me at this time that two recent developments may permit fast progress on our way to understand
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Using dCep Stars to study Northern Dwarf Irregular Galaxies of the Local Group
Dwarf galaxies in the Local Group provide a unique astrophysical laboratory. Despite their proximity some of these systems still lack
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(1,9)-spacetime --> (1,3)-spacetime: Reduction => U(1)xSU(2)xSU(3)
A derivation of the standard symmetry and leptoquark family structure is presented that is more straightforward than a previous derivation.
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1/f noise in experimental Sinai quantum billiards
It was recently conjectured that 1/f noise is a fundamental characteristic of spectral fluctuations in chaotic quantum systems. In this
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4-dimensional spontaneously broken U(1)L gauge theories with a composite Wess-Zumino field
Some spontaneously broken gauge theories with left couplings to fermions, like the abelian model that we propose here, can be
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Absorption Systems in the Spectrum of GRB 021004
We report on a 3600 s spectrum of GRB 021004 obtained with the Nordic Optical Telecope on La Palma 10.71
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Abundance analysis of planetary host stars
We present atmospheric parameters and Fe abundances derived for the majority of dwarf stars (north of -30 degrees declination) which
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Abundances of UV bright stars in globular clusters. I. ROA 5701 in omega Centauri and Barnard 29 in M 13
Two UV brights stars in globular clusters, ROA 5701 (omega Cen) and Barnard 29 (M 13) are analysed from high-resolution
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A categorification of the Temperley-Lieb algebra and Schur quotients of U(sl(2)) via projective and Zuckerman functors
We identify the Grothendieck group of certain direct sum of singular blocks of the highest weight category for sl(n) with
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A Chandra LETGS observation of V4743 Sagittarius: A Super Soft X-ray Source and a Violently Variable Light Curve
V4743 Sgr (Nova Sgr 2002 No. 3) was discovered on 20 September 2002. We obtained a 5ks ACIS-S spectrum in
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