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19912026
most citedThe Infrared Array Camera (IRAC) for the Spitzer Space Telescope

3.3k citations

Showing 2004Show all

157 papers · 1 filter

hep-ex2004★ 699 cited

Measurement of the J/Psi Meson and b-Hadron Production Cross Sections in ppbar Collisions at sqrt s = 1960 GeV

D. Acosta, CDF Collaboration

We present a new measurement of the inclusive and differential production cross sections of mesons and -hadrons in proton-antiproton collisions at GeV. The…

cond-mat.other2004

Multi-Scale Perturbation Analysis in Hydrodynamics of the Superfluid Turbulence. Derivation of the Dresner Equation

Sergey K. Nemirovskii, Sergey A. Ponomarenko

The Hydrodynamics of Superfluid Turbulence (HST) describes the flows (or counterflows) of HeII in the presence of a chaotic set of vortex filaments, so called superfluid turbulence…

quant-ph2004★ 78 cited

Spontaneous emission of a photon: wave packet structures and atom-photon entanglement

M. V. Fedorov, M. A. Efremov, A. E. Kazakov +3

Spontaneous emission of a photon by an atom is described theoretically in three dimensions with the initial wave function of a finite-mass atom taken in the form of a finite-size w…

quant-ph2004★ 9 cited

Robust Multi-Partite Multi-Level Quantum Protocols

Hideomi Nihira, C. R. Stroud

We present a tripartite three-level state that allows a secret sharing protocol among the three parties, or a quantum key distribution protocol between any two parties. The state u…

cond-mat.mes-hall2004★ 150 cited

Time-Resolved Intraband Relaxation of Strongly-Confined Electrons and Holes in Colloidal PbSe Nanocrystals

Jeffrey M. Harbold, Frank W. Wise, Hui Du +3

The relaxation of strongly-confined electrons and holes between 1P and 1S levels in colloidal PbSe nanocrystals has been time-resolved using femtosecond transient absorption spectr…

hep-th2004★ 3 cited

Propagators with the Mandelstam-Leibbrandt Prescription in the Light-Cone Gauge

Ashok Das, J. Frenkel

We show that the Feynman propagator in the light-cone gauge with the Mandelstam-Leibbrandt prescription has a logarithmic growth for large which is related to th…

hep-ph2004★ 124 cited

Probing Electroweak Top Quark Couplings at Hadron Colliders

U. Baur, A. Juste, L. H. Orr +1

We consider QCD t\bar{t}γand t\bar{t}Z production at hadron colliders as a tool to measure the ttγand ttZ couplings. At the Tevatron it may be possible to perform a first, albeit n…

hep-ex2004★ 58 cited

Measurement of the Lifetime Difference Between B_s Mass Eigenstates

D. Acosta

We present measurements of the lifetimes and polarization amplitudes for B_s --> J/psi phi and B_d --> J/psi K*0 decays. Lifetimes of the heavy (H) and light (L) mass eigenstates i…

hep-ex2004★ 37 cited

Measurement of the Cross Section for Prompt Diphoton Production in p-pbar Collisions at sqrt(s) = 1.96 TeV

D. Acosta et al

We report a measurement of the rate of prompt diphoton production in collisions at using a data sample of 207 pb collected with the up…

hep-ex2004★ 12 cited

Search for Anomalous Kinematics in ttbar Dilepton Events at CDF II

CDF collaboration, D. Acosta

We report on a search for anomalous kinematics of ttbar dilepton events in ppbar collisions at sqrt{s}=1.96 TeV using 193 {pb}^{-1} of data collected with the CDF II detector. We d…

hep-ex2004★ 34 cited

Measurements of Bottom Anti-Bottom Azimuthal Production Correlations in Proton-Antiproton Collisions at s**(1/2)= 1.8 TeV

CDF Collaboration

We have measured the azimuthal angular correlation of bottom anti-bottom production, using 86.5 pb-1 of data collected by Collider Detector at Fermilab (CDF) in proton anti-proton…

cond-mat.mes-hall2004★ 228 cited

Dynamics of a two-level system strongly coupled to a high-frequency quantum oscillator

E. K. Irish, J. Gea-Banacloche, I. Martin +1

Recent experiments on quantum behavior in microfabricated solid-state systems suggest tantalizing connections to quantum optics. Several of these experiments address the prototypic…

hep-ex2004★ 12 cited

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…

hep-ex2004★ 43 cited

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…

hep-ex2004★ 28 cited

Measurement of the W Boson Polarization in Top Decay at CDF at s**(1/2) = 1.8 TeV

CDF Collaboration

The polarization of the boson in decay is unambiguously predicted by the Standard Model of weak interactions and is a powerful test of our understanding of the $tbW…

astro-ph2004★ 67 cited

Synchrotron Radiation From Radiatively Inefficient Accretion Flow Simulations: Applications to Sgr A*

Joshua E. Goldston, Eliot Quataert, Igor V. Igumenshchev

We calculate synchrotron radiation in three-dimensional pseudo-Newtonian magnetohydrodynamic simulations of radiatively inefficient accretion flows. We show that the emission is hi…

hep-ex2004★ 55 cited

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…

quant-ph2004★ 42 cited

Universality in the entanglement structure of ferromagnets

J. S. Pratt

Systems of exchange-coupled spins are commonly used to model ferromagnets. The quantum correlations in such magnets are studied using tools from quantum information theory. Isotrop…

astro-ph2004★ 258 cited

The Truncated Disk of CoKu Tau/4

Paola D'Alessio, Lee Hartmann, Nuria Calvet +11

We present a model of a dusty disk with an inner hole which accounts for the Spitzer Space Telescope Infrared Spectrograph observations of the low-mass pre-main sequence star CoKu…

hep-ex2004★ 52 cited

Measurement of the Forward-Backward Charge Asymmetry of Electron-Positron Pairs in Proton anti-Proton Collisions at s**(1/2)=1.96-TeV

CDF Collaboration

We present a measurement of the mass dependence of the forward-backward charge asymmetry (A_{FB}) for electron-positron pairs produced via an intermediate Z/gamma with mass Mee > 4…

hep-ph2004★ 92 cited

Improved low Q2 model for neutrino and electron nucleon cross sections in few GeV region

Arie Bodek, Inkyu Park, Un-ki Yang

We present an improved model on neutrino- and electron-nucleon scattering cross sections using effective leading order PDFs with a new scaling variable xi_w. Non-perturbative QCD e…

astro-ph2004★ 54 cited

Spectroscopic Confirmation of the Least Massive Known Brown Dwarf in Chamaeleon

K. L. Luhman, Dawn E. Peterson, S. T. Megeath

We present spectroscopy of two candidate substellar members of the Chamaeleon I star-forming region. The candidates, which were identified photometrically by Oasa, Tamura, & Sugita…

hep-ex2004★ 1 cited

The Jupiter Electron Scattering Program at Jefferson Lab

Arie Bodek

JUPITER (Jlab Unified Program to Investigate nuclear Targets and Electroproduction of Resonances) is a new collaboration between the Nuclear Physics Electron Scattering and High En…

physics.acc-ph2004★ 40 cited

Generation of angular-momentum-dominated electron beams from a photoinjector

Y. -E Sun, P. Piot, K. -J. Kim +5

Various projects under study require an angular-momentum-dominated electron beam generated by a photoinjector. Some of the proposals directly use the angular-momentum-dominated bea…