Showing 2007Show all

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astro-ph2007★ 381 cited

A Search for Extended Ultraviolet Disk (XUV-disk) Galaxies in the Local Universe

David A. Thilker, Luciana Bianchi, Gerhardt Meurer +26

We have initiated a search for extended ultraviolet disk (XUV-disk) galaxies in the local universe. Herein, we compare GALEX UV and visible--NIR images of 189 nearby (D40 Mpc) S…

hep-ex2007★ 29 cited

A Measurement of the Branching Fractions of exclusive Bbar -> D(*)(pi)l-nubar Decays in Events with a Fully Reconstructed B Meson

The BABAR Collaboration, B. Aubert

We report a measurement of the branching fractions for Bbar -> D(*)(pi)l-nubar decays based on 341.1 fb-1 of data collected at the Upsilon(4S) resonance with the babar detector at…

hep-ex2007★ 10 cited

Time-dependent Dalitz plot analysis of B0 -> D-(+) K0 Pi+(-) decays

The BABAR Collaboration, B. Aubert

We present for the first time a measurement of the weak phase 2b+g obtained from a time-dependent Dalitz plot analysis of B^0 -> D-(+) K0 Pi+(-) decays. Using a sample of approxima…

hep-th2007★ 1.1k cited

Gauge Symmetry and Supersymmetry of Multiple M2-Branes

Jonathan Bagger, Neil Lambert

In previous work we proposed a field theory model for multiple M2-branes based on an algebra with a totally antisymmetric triple product. In this paper we gauge a symmetry that ari…

astro-ph2007★ 56 cited

X-ray Emitting Ejecta in Puppis A Observed with Suzaku

Una Hwang, Robert Petre, Kathryn A. Flanagan

We report the detection and localization of X-ray emitting ejecta in the middle-aged Galactic supernova remnant Puppis A using five observations with the Suzaku X-ray Imaging Spect…

astro-ph2007★ 51 cited

Ultraviolet, Optical, and Infrared Constraints on Models of Stellar Populations and Dust Attenuation

Benjamin D. Johnson, David Schiminovich, Mark Seibert +19

The color of galaxies is a fundamental property, easily measured, that constrains models of galaxies and their evolution. Dust attenuation and star formation history (SFH) are the…

hep-ex2007★ 208 cited

First Flavor-Tagged Determination of Bounds on Mixing-Induced CP Violation in Bs -> J/psi phi Decays

CDF Collaboration, T. Aaltonen

This Letter describes the first determination of bounds on the CP-violation parameter 2*beta_s using Bs decays in which the flavor of the bottom meson at production is identified.…

cond-mat.str-el2007★ 708 cited

Bose-Einstein Condensation in Magnetic Insulators

T. Giamarchi, Ch. Rüegg, O. Tchernyshyov

The elementary excitations in antiferromagnets are magnons, quasiparticles with integer spin and Bose statistics. In an experiment their density is controlled efficiently by an app…

hep-ex2007★ 49 cited

Measurement of D0-anti-D0 Mixing using the Ratio of Lifetimes for the Decays D0 --> K-pi+, K-K+, and pi-pi+

The BABAR Collaboration, B. Aubert

We present a measurement of - mixing parameters using the ratios of lifetimes extracted from a sample of mesons produced through the process $D^{*+}\to\D^0π^+…

stat.AP2007★ 31 cited

A statistical framework for the analysis of microarray probe-level data

Zhijin Wu, Rafael A. Irizarry

In microarray technology, a number of critical steps are required to convert the raw measurements into the data relied upon by biologists and clinicians. These data manipulations,…

cond-mat.str-el2007★ 209 cited

Electron-phonon interaction and charge carrier mass enhancement in SrTiO3

J. L. M. van Mechelen, D. van der Marel, C. Grimaldi +5

We report a comprehensive THz, infrared and optical study of Nb doped SrTiO3 as well as DC conductivity and Hall effect measurements. Our THz spectra at 7K show the presence of a v…

hep-ex2007★ 17 cited

Study of B0 --> l+l'- decays (l,l' = e,mu)

The BaBar Collaboration, B. Aubert

We present a search for the decays B0 --> e+e-, B0 --> mu+ mu- and B0 --> e mu using data collected with the BABAR detector at the PEP-II e+e-collider at SLAC. Using a dataset corr…

astro-ph2007★ 98 cited

A Giant Flare from a Soft Gamma Repeater in the Andromeda Galaxy, M31

E. P. Mazets, R. L. Aptekar, T. L. Cline +6

The light curve, energy spectra, energetics, and IPN localization of an exceedingly intense short duration hard spectrum burst, GRB 070201, obtained from Konus-Wind, INTEGRAL (SPI-…

stat.AP2007★ 104 cited

Interpretation of interaction: A review

Amy Berrington de González, D. R. Cox

Several different types of statistical interaction are defined and distinguished, primarily on the basis of the nature of the factors defining the interaction. Illustrative example…

math.AT2007

Moonshine elements in elliptic cohomology

Jack Morava

This is a historical talk about the recent confluence of two lines of research in equivariant elliptic cohomology, one concerned with connected Lie groups, the other with the finit…

cond-mat.mtrl-sci2007★ 57 cited

Neutron and X-ray diffraction study of cubic [111] field cooled Pb(Mg1/3Nb2/3)O3

C. Stock, Guangyong Xu, P. M. Gehring +6

Neutron and x-ray diffraction techniques have been used to study the competing long and short-range polar order in the relaxor ferroelectric Pb(MgNb)O (PMN) u…

cond-mat.supr-con2007★ 278 cited

Spin resonance in the d-wave superconductor CeCoIn5

C. Stock, C. Broholm, J. Hudis +2

Neutron scattering is used to probe antiferromagnetic spin fluctuations in the d-wave heavy fermion superconductor CeCoIn (T=2.3 K). Superconductivity develops from a s…

hep-th2007★ 692 cited

Comments on Multiple M2-branes

Jonathan Bagger, Neil Lambert

Recently a three-dimensional field theory was derived that is consistent with all the symmetries expected of the worldvolume action for multiple M2-branes. In this note we examine…

hep-ex2007★ 26 cited

Measurement of the Decay B- --> D*0 e- nubar

The BABAR Collaboration, B. Aubert

Using 226 million BBbar events recorded on the Upsilon(4S) resonance with the BABAR detector at the SLAC e+e- PEPII storage rings, we reconstruct B- -> D*0 e- nubar decays using th…

hep-ex2007★ 12 cited

First Measurement of the Fraction of Top Quark Pair Production Through Gluon-Gluon Fusion

CDF Collaboration, T. Aaltonen

We present the first measurement of the fraction of top quark pair production through gluon-gluon fusion. We use 0.96/fb of s**(1/2)=1.96 TeV p-pbar collision data recorded with th…

hep-ex2007★ 50 cited

Measurement of Lifetime and Decay-Width Difference in B0s -> J/psi phi Decays

CDF collaboration, T. Aaltonen

We measure the mean lifetime, tau=2/(Gamma_L+Gamma_H), and the width difference, DeltaGamma=Gamma_L-Gamma_H, of the light and heavy mass eigenstates of the B0s meson, B0sL and B0sH…

hep-ex2007★ 66 cited

Model-Independent and Quasi-Model-Independent Search for New Physics at CDF

CDF Collaboration

Data collected in Run II of the Fermilab Tevatron are searched for indications of new electroweak scale physics. Rather than focusing on particular new physics scenarios, CDF data…

physics.flu-dyn2007★ 114 cited

Modeling the pressure Hessian and viscous Laplacian in Turbulence: comparisons with DNS and implications on velocity gradient dynamics

L. Chevillard, C. Meneveau, L. Biferale +1

Modeling the velocity gradient tensor A along Lagrangian trajectories in turbulent flow requires closures for the pressure Hessian and viscous Laplacian of A. Based on an Eulerian-…

astro-ph2007★ 366 cited

Cosmic Variance and Its Effect on the Luminosity Function Determination in Deep High z Surveys

M. Trenti, M. Stiavelli

We study cosmic variance in deep high redshift surveys and its influence on the determination of the luminosity function for high redshift galaxies. For several survey geometries r…