Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS1.3k papers
- Goddard Space Flight CenterUS1.3k papers
- California Institute of TechnologyUS1.3k papers
- The Ohio State UniversityUS1.2k papers
- Centre National de la Recherche ScientifiqueFR1.1k papers
- Massachusetts Institute of TechnologyUS1.1k papers
- University of Maryland, College ParkUS1k papers
- Center for Astrophysics Harvard & SmithsonianUS975 papers
- Lawrence Berkeley National LaboratoryUS897 papers
- University of ChicagoUS889 papers
- University of WashingtonUS868 papers
- Yale UniversityUS848 papers
219 papers · 1 filter
NLO parton showers and subtractive techniques
F. Hautmann
Motivated by asking how to combine parton showers with nonleading QCD matrix elements, we discuss a subtractive technique based on gauge-invariant Wilson-line operators and how thi…
3EG J2016+3657: Confirming an EGRET Blazar Behind the Galactic Plane
J. P. Halpern, M. Eracleous, R. Mukherjee +1
We recently identified the blazar-like radio source G74.87+1.22 (B2013+370) as the counterpart of the high-energy gamma-ray source 3EG J2016+3657 in the Galactic plane. However, si…
Colors of 2625 Quasars at 0<z<5 Measured in the Sloan Digital Sky Survey Photometric System
Gordon T. Richards, Xiaohui Fan, Donald P. Schneider +3
We present an empirical investigation of the colors of quasars in the Sloan Digital Sky Survey (SDSS) photometric system. The sample studied includes 2625 quasars with SDSS photome…
The Quiescent X-Ray Spectrum of the Neutron Star in Cen X-4 Observed with Chandra/ACIS-S
Robert E. Rutledge, Lars Bildsten, Edward F. Brown +2
We report on spectral and intensity variability analysis from a Chandra/ACIS-S observation of the transient, type-I X-ray bursting low-mass X-ray binary Cen X-4. The quiescent X-ra…
Learning effective amino acid interactions through iterative stochastic techniques
Cristian Micheletti, Flavio Seno, Jayanth Banavar +1
The prediction of the three-dimensional structures of the native state of proteins from the sequences of their amino acids is one of the most important challenges in molecular biol…
ASCA Discovery of Diffuse 6.4 keV Emission Near the Sgr C Complex: A New X-ray Reflection Nebula
H. Murakami, K. Koyama, M. Tsujimoto +2
We present an ASCA discovery of diffuse hard X-ray emission from the Sgr C complex with its peak in the vicinity of the molecular cloud core. The X-ray spectrum is characterized by…
A proof of the Baum-Connes conjecture for reductive adelic groups
Paul Baum, Stephen Millington, Roger Plymen
Let F be a global field, A its ring of adeles, G a reductive group over F. We prove the Baum-Connes conjecture for the adelic group G(A).
Phase Separation and the Low-Field Bulk Magnetic Properties of Pr0.7Ca0.3MnO3
I. G. Deac, J. F. Mitchell, P. Schiffer
We present a detailed magnetic study of the perovskite manganite Pr0.7Ca0.3MnO3 at low temperatures including magnetization and a.c. susceptibility measurements. The data appear to…
High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data V. Hobby-Eberly Telescope Observations
Donald P. Schneider, Xiaohui Fan, Michael A. Strauss +5
We report the discovery of 27 quasars with redshifts between 3.58 and 4.49. The objects were identified as high-redshift candidates based on their colors in Sloan Digital Sky Surve…
Cooper Instability of Composite Fermions
Vito W. Scarola, Kwon Park, J. K. Jain
When confined to two dimensions and exposed to a strong magnetic field, electrons screen the Coulomb interaction in a topological fashion; they capture and even number of quantum v…
Further Evidence for Cosmological Evolution of the Fine Structure Constant
J. K. Webb, M. T. Murphy, V. V. Flambaum +5
We describe the results of a search for time variability of the fine structure constant, alpha, using absorption systems in the spectra of distant quasars. Three large optical data…
Possible evidence for a variable fine structure constant from QSO absorption lines: systematic errors
M. T. Murphy, J. K. Webb, V. V. Flambaum +2
Comparison of quasar absorption spectra with laboratory spectra allow us to probe possible variations in the fundamental constants over cosmological time-scales. In a companion pap…
Possible evidence for a variable fine structure constant from QSO absorption lines: motivations, analysis and results
M. T. Murphy, J. K. Webb, V. V. Flambaum +5
An experimental search for variation in the fundamental coupling constants is strongly motivated by modern high-energy physics theories. Comparison of quasar absorption line spectr…
The Luminosity Function of Galaxies in SDSS Commissioning Data
SDSS Collaboration, M. R. Blanton
During commissioning observations, the Sloan Digital Sky Survey (SDSS) has produced one of the largest existing galaxy redshift samples selected from CCD images. Using 11,275 galax…
Topological Phases in Graphitic Cones
P. E. Lammert, V. H. Crespi
The electronic structure of graphitic cones exhibits distinctive topological features associated with the apical disclinations. Aharonov-Bohm magnetoconductance oscillations (perio…
Magnetic Fingerprints in Superconducting AuIn Cylinders
Yu. Zadorozhny, D. R. Herman, Y. Liu
Reproducible, sample-specific magnetoresistance fluctuations (magnetic fingerprints) were observed in the low-temperature part of the superconducting transition regime of hollow Au…
PMN J0525-3343: soft X-ray spectral flattening in a blazar at z=4.4
A. C. Fabian, A. Celotti, K. Iwasawa +5
We report optical, radio and X-ray observations of a new distant blazar, PMN J0525-3343, at a redshift of 4.4. The X-ray spectrum measured from ASCA and BeppoSAX flattens below a f…
Parton showers beyond the leading order: a factorization approach
F. Hautmann
We discuss recent work on methods for incorporating nonleading QCD corrections in parton shower algorithms.
The excitonic collapse of higher Landau level fractional quantum Hall effect
V. W. Scarola, Kwon Park, J. K. Jain
The scarcity of the fractional quantum Hall effect in higher Landau levels is a most intriguing fact when contrasted with its great abundance in the lowest Landau level. This paper…
Phase Diagram of Bilayer Composite Fermion States
V. W. Scarola, J. K. Jain
We construct a class of composite fermion states for bilayer electron systems in a strong transverse magnetic field, and determine quantitatively the phase diagram as a function of…
Dilation-induced phases of gases absorbed within a bundle of carbon nanotubes
M. Mercedes Calbi, Flavio Toigo, Milton W. Cole
A study is presented of the effects of gas (especially H2) absorption within the interstitial channels of a bundle of carbon nanotubes. The ground state of the system is determined…
Single particle strength restoration and nuclear transparency in high Q^2 exclusive (e,e'p) reactions
L. Frankfurt, M. Strikman, M. Zhalov
Quenching of the single particle strength which previously precluded unambiguous measurement of nuclear transparency in quasifree (e,e'p) reactions at high momentum transfer is eva…
Off-Beam Gamma-Ray Pulsars and Unidentified EGRET Sources in the Gould Belt
Alice K. Harding, Bing Zhang
We investigate whether gamma-ray pulsars viewed at a large angle to the neutron star magnetic pole could contribute to the new population of galactic unidentified EGRET sources ass…
Models of Cuspy Triaxial Galaxies
Kelly Holley-Bockelmann, J. Christopher Mihos, Steinn Sigurdsson +1
We construct numerical models of mildly triaxial elliptical galaxies with central density cusps. Using a technique we call ``adiabatic squeezing'', we begin with a spherical gamma=…