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74 papers · 1 filter
X-ray Periodicity in AGN
Karen M. Leighly
Significant (marginal) detections of periodic signals have been recently reported in 3 (4) Active Galactic Nuclei. Three of the detections were obtained from long EUVE light curves…
The adjunction problem over torsion-free groups
Max Forester, Colin Rourke
In this note we prove injectivity and relative asphericity for "layered" systems of equations over torsion-free groups, when the exponent matrix is invertible over Z. We also give…
Casimir Energy for a Dielectric Cylinder
Ines Cavero-Pelaez, Kimball A. Milton
In this paper we calculate the Casimir energy for a dielectric-diamagnetic cylinder with the speed of light differing on the inside and outside. Although the result is in general d…
Muon Anomalous Magnetic Moment in a Supersymmetric U(1)' Model
Vernon Barger, Chung Kao, Paul Langacker +1
We study the muon anomalous magnetic moment a_μ= (g_μ- 2)/2 in a supersymmetric U(1)' model. The neutralino sector has extra components from the superpartners of the U(1)' gauge bo…
A Search for Anomalous Heavy-Flavor Quark Production in Association with W Bosons
D0 Collaboration, V. M. Abazov
We present a search for anomalous production of heavy-flavor quark jets in association with a W boson at the Fermilab Tevatron ppbar Collider. This search is conducted through an e…
Orientation-reversing free actions on handlebodies
Antonio F. Costa, Darryl McCullough
We examine free orientation-reversing group actions on orientable handlebodies, and free actions on nonorientable handlebodies. A classification theorem is obtained, giving the equ…
Measuring cal B(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_D^+
G. Bonvicini, CLEO Collaboration
In 60 inverse-pb of data taken on the psi(3770) resonance with the CLEO-c detector, we find 8 D+ -> mu+ nu decay candidates that are mostly signal, containing only 1 estimated back…
Photon transitions in Upsilon(2S) and Upsilon(3S)
M. Artuso
We have studied the inclusive photon spectra in Upsilon(2S) and Υ(3S) decays using a large statistics data sample obtained with the CLEO III detector. We present the most precise m…
High velocity features in the spectra of the Type Ia SN 1999ee: a property of the explosion or evidence of circumstellar interaction?
P. A. Mazzali, S. Benetti, M. Stehle +5
The near-maximum spectra of the Type Ia SN 1999ee are reviewed. Two narrow absorption features corresponding to the strongest component of the CaII IR triplet appear in the spectra…
An XMM-Newton Observation of the Seyfert 2 Galaxy NGC 6300. I. The Nucleus
Chiho Matsumoto, Aida Nava, Larry A. Maddox +4
We present results from a half-day observation by XMM-Newton of the nucleus of the nearby Seyfert 2 galaxy NGC 6300. The X-ray spectrum of the nucleus consists of a heavily absorbe…
Detecting a Higgs Pseudoscalar with a Z Boson Produced in Bottom Quark Fusion
Chung Kao, Shankar Sachithanandam
We investigate the prospects of detecting a Higgs pseudoscalar () in association with a gauge boson produced from bottom quark fusion () at the CERN Lar…
The Smale Conjecture for lens spaces
Sungbok Hong, Darryl McCullough, J. Hyam Rubinstein
The original Smale Conjecture asserted that the inclusion of the group O(4) of isometries of the round 3-sphere S into the full diffeomorphism group Diff(S) is a homotopy equivalen…
A New Measurement of the Masses and Widths of the Sigma_c^*++ and Sigma_c^*0 Charmed Baryons
S. B. Athar
Using data recorded by the CLEO III detector at CESR, we have made measurements of some properties of the Sigma_c^{*++} and Sigma_c^{*0} charmed baryons. In particular: Gamma(Sigma…
Measurement of the Top Quark Mass In All-Jet Events
D0 Collaboration, V. M. Abazov
We describe a measurement of the mass of the top quark from the purely hadronic decay modes of t-tbar pairs using all-jet data produced in p-pbar collisions at sqrt{s} = 1.8 TeV at…
A Measurement of the Ratio of Inclusive Cross Sections pp->Z+b-jet/pp->Z+jet at sqrt(s) = 1.96-TeV
D0 Collaboration, V. M. Abazov
Using the data collected with the DZero detector at sqrt(s)=1.96-TeV, for integrated luminosities of about 180 pb^{-1}, we have measured the ratio of inclusive cross sections for p…
Measurement of the WW production cross section in p anti-p collisions at s**(1/2) = 1.96 TeV
D0 Collaboration, V. M. Abazov
We present a measurement of the W boson pair-production cross section in p anti-p collisions at a center-of-mass energy of sqrt{s}=1.96 TeV. The data, collected with the Run II DO…
A search for W bb and W Higgs production in ppbar collisions at sqrt(s)=1.96 TeV
D0 Collaboration, V. M. Abazov
We present a search for W b \bar{b} production in p \bar{p} collisions at sqrt{s}=1.96 TeV in events containing one electron, an imbalance in transverse momentum, and two b-tagged…
Measurement of the Lambda^0_b lifetime in the decay Lambda^0_b -> J/psi Lambda^0 with the D0 Detector
D0 Collaboration, V. M. Abazov
We present measurements of the Lambda^0_b lifetime in the exclusive decay channel Lambda^0_{b}->J/psi Lambda^0, with J/psi to mu+ mu- and Lambda^0 to p pi-, the B^0 lifetime in the…
The Rise of the s-Process in the Galaxy
J. Simmerer, C. Sneden, J. J. Cowan +3
From newly-obtained high-resolution, high signal-to-noise ratio spectra the abundances of the elements La and Eu have been determined over the stellar metallicity range -3<[Fe/H]<+…
Type IIP Supernovae as Cosmological Probes: A SEAM Distance to SN 1999em
E. Baron, Peter Nugent, David Branch +1
Due to their intrinsic brightness, supernovae make excellent cosmological probes. We describe the SEAM method for obtaining distances to Type IIP supernovae (SNe IIP) and present a…
On the Temperature Dependence of the Casimir Effect
I. Brevik, J. B. Aarseth, J. S. Høye +1
The temperature dependence of the Casimir force between a real metallic plate and a metallic sphere is analyzed on the basis of optical data concerning the dispersion relation of m…
A Search for the Flavor-Changing Neutral Current Decay B0_s -> mu^+mu^- in pp(bar) Collisions at \sqrt{s} = 1.96 TeV with the D0 Detector
D0 Collaboration, V. M. Abazov
We present the results of a search for the flavor-changing neutral current decay B0_s -> mu+ mu- using a data set with integrated luminosity of 240 pb^{-1} of pp(bar) collisions at…
Search for X(3872) in gamma gamma Fusion and ISR at CLEO
S. Dobbs, CLEO Collaboration
We report on a search for the recently reported X(3872) state using 15.1 fb^{-1} e+ e- data taken in the \sqrt{s} = 9.46-11.30 GeV region. Separate searches for the production of X…
Recent Developments in Quantum Vacuum Energy for Confined Fields
K. A. Milton
Quantum vacuum energy entered hadronic physics through the zero-point energy parameter introduced into the bag model. Estimates of this parameter led to apparent discordance with p…