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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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64 papers · 1 filter
Finite Theories and the SUSY Flavor Problem
K. S. Babu, Tatsuo Kobayashi, Jisuke Kubo
We study a finite SU(5) grand unified model based on the non-Abelian discrete symmetry A_4. This model leads to the democratic structure of the mass matrices for the quarks and lep…
Pseudo-potentials, nonlocal symmetries and integrability of some shallow water equations
Enrique G. Reyes
Zero curvature formulations, pseudo-potentials, modified versions, ``Miura transformations'', and nonlocal symmetries of the Korteweg--de Vries, Camassa-- Holm and Hunter--Saxton e…
Correspondence theorems for hierarchies of equations of pseudo-spherical type
Enrique G. Reyes
Hierarchies of evolution equations of pseudo-spherical type are introduced, generalizing the notion of a single equation describing pseudo-spherical surfaces due to S.S. Chern and…
Measurement of Lepton Momentum Moments in the Decay bar{B} \to X \ell \barν and Determination of Heavy Quark Expansion Parameters and |V_cb|
A. H. Mahmood
We measure the primary lepton momentum spectrum in B-bar to X l nu decays, for p_l > 1.5 GeV/c in the B rest frame. From this, we calculate various moments of the spectrum. In part…
r-Process Abundance Signatures
J. J. Cowan, C. Sneden
Abundance observations indicate the presence of rapid-neutron capture (i.e., r-process) elements in old Galactic halo and globular cluster stars. These observations demonstrate tha…
Determination of Primordial Metallicity and Mixing in the Type IIP Supernova 1993W
E. Baron, Peter E. Nugent, David Branch +3
We present the results of a large grid of synthetic spectra and compare them to early spectroscopic observations of SN 1993W. This supernova was discovered close to its explosion d…
Dark energy effects on the Lyman-alpha forest
M. Viel, S. Matarrese, Tom Theuns +2
In quintessence models, the dark energy content of the universe is described by a slowly rolling scalar field whose pressure and energy density obey an equation of state of the for…
On the Origin of Nitrogen in Damped Ly-alpha Systems
R. B. C. Henry, Jason X. Prochaska
Recent measurements of nitrogen and alpha elements in over 20 damped Ly-alpha systems (DLA) are compared with similar measurements for numerous emission line objects and stars. It…
Calculating Casimir Energies in Renormalizable Quantum Field Theory
Kimball A. Milton
Quantum vacuum energy has been known to have observable consequences since 1948 when Casimir calculated the force of attraction between parallel uncharged plates, a phenomenon conf…
Goldstone mode kink-solitons in double layer quantum Hall systems
Ramaz Khomeriki, Kieran Mullen, Shota Revishvili
It is shown that in charge unbalanced double layer quantum Hall system with zero tunneling pseudospin Goldstone mode excitations form moving kink-soliton in weakly nonlinear limit.…
An Extreme Ultraviolet Explorer Atlas of Seyfert Galaxy Light Curves: Search for Periodicity
J. P. Halpern, K. M. Leighly, H. L. Marshall
The Deep Survey instrument on the Extreme Ultraviolet Explorer satellite (EUVE) obtained long, nearly continuous soft X-ray light curves of 5-33 days duration for 14 Seyfert galaxi…
Detection of Two Binary Trans-Neptunian Objects, 1997 CQ29 and 2000 CF105, with the Hubble Space Telescope
Keith S. Noll, Denise C. Stephens, Will M. Grundy +6
Images of the trans-Neptunian objects 1997 CQ29 and 2000 CF105 obtained with the Hubble Space Telescope's WFPC2 camera show them to be binary. The two components of 1997 CQ29 were…
First Observation of the Exclusive Decays Lambda_c to Lambda pi+pi+pi-pi0 and Lambda_c to Lambda omega pi+
D. Cronin-Hennessy
Using data recorded by the CLEO III detector at CESR, we report on the first measurements of the branching fractions for decays of the Lambda_c^+ charmed baryon into (Lambda pi+ pi…
Dark Energy as Evidence for Extra Dimensions
Kimball A. Milton
It is argued that fluctuations of quantum fields in four-dimensional space do not give rise to dark energy, but are rather a negligible contribution to dark matter. By (relativisti…
Peculiar, Low Luminosity Type II Supernovae: Low Energy Explosions in Massive Progenitors?
L. Zampieri, A. Pastorello, M. Turatto +5
A number of supernovae, classified as Type II, show remarkably peculiar properties such as an extremely low expansion velocity and an extraordinarily small amount of Ni in t…
Observations of Neutron-Capture Elements in the Early Galaxy
C. Sneden, J. J. Cowan, J. E. Lawler
Neutron-capture elements in low metallicity Galactic halo stars vary widely both in overall contents and detailed abundance patterns. This review discusses recent observational res…
Higgs Decays into Leptons
Chung Kao
We discuss the prospects for the discovery of neutral Higgs bosons () in multi-Higgs doublet models via their decays into leptons at hadron colliders. A major…
Sulfur, Chlorine, and Argon Abundances in Planetary Nebulae. III: Observations and Results for a Final Sample
K. B. Kwitter, R. B. C. Henry, J. B. Milingo
This paper is the fourth in a series whose purpose is to study the interstellar abundances of sulfur, chlorine, and argon in the Galaxy using a sample of 86 planetary nebulae. Here…
Probing the Neutron-Capture Nucleosynthesis History of Galactic Matter
J. W. Truran, J. J. Cowan, C. A. Pilachowski +1
The heavy elements formed by neutron capture processes have an interesting history from which we can extract useful clues to and constraints upon both the characteristics of the pr…
The Spectrum of the FeLoBAL Quasar FBQS 1214+2803: A Resonance-Scattering Interpretation
D. Branch, K. M. Leighly, R. C. Thomas +1
The usual interpetation of the spectrum of a BAL QSO is that a broad-band continuum from the central engine plus broad emission lines from a surrounding region (the BELR) emerges f…
Experimental realization of a continuous version of the Grover algorithm
Vladimir L. Ermakov, B. M. Fung
A continuous, analog version of the Grover algorithm is realized using NMR. The system studied is 23Na in a liquid crystal medium. The presence of quadrupolar coupling makes the sp…
Search for Neutrinoless tau Decays Involving the K_S^0 Meson
S. Chen, CLEO Collaboration
We have searched for lepton flavor violating decays of the tau lepton with one or two KS0 mesons in the final state. The data used in the search were collected with the CLEO II and…
Theory of the tunneling resonances of the bilayer electron systems in strong magnetic field
M. Abolfath, R. Khomeriki, K. Mullen
We develop a theory for the anomalous interlayer conductance peaks observed in bilayer electron systems at nu=1. Our model shows the that the size of the peak at zero bias decrease…
Searching for the Higgs Bosons of Minimal Supersymmetry with Muon Pairs and Bottom Quarks
Sally Dawson, Duane Dicus, Chung Kao
The prospects for the discovery of neutral Higgs bosons (phi^0 = H^0, h^0, A^0) produced with bottom quarks via Higgs decays into muon pairs (pp --> b b-bar phi^0 --> b b-bar mu mu…