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396 papers · 1 filter

astro-ph.GA2009★ 3 cited

Assessment of Stellar Stratification in Three Young Star Clusters in the Large Magellanic Cloud

Dimitrios A. Gouliermis, Dougal Mackey, Yu Xin +1

(abridged) We present a comprehensive study of stellar stratification in young star clusters in the Large Magellanic Cloud (LMC). We apply our recently developed effective radius m…

hep-ex2009★ 84 cited

Determination of the strong coupling constant from the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

We determine the strong coupling constant alphas and its energy dependence from the pT dependence of the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV. The st…

q-bio.BM2009★ 41 cited

Jamming proteins with slipknots and their free energy landscape

Joanna I. Sułkowska, Piotr Sułkowski, José N. Onuchic

Theoretical studies of stretching proteins with slipknots reveal a surprising growth of their unfolding times when the stretching force crosses an intermediate threshold. This beha…

q-bio.BM2009★ 178 cited

Dodging the crisis of folding proteins with knots

Joanna I. Sułkowska, Piotr Sułkowski, José N. Onuchic

Proteins with nontrivial topology, containing knots and slipknots, have the ability to fold to their native states without any additional external forces invoked. A mechanism is su…

nucl-th2009★ 5 cited

Neutron-Proton Mass Difference in Nuclear Matter and in Finite Nuclei and the Nolen-Schiffer Anomaly

Ulf-G. Meißner, A. M. Rakhimov, A. Wirzba +1

The neutron-proton mass difference in (isospin asymmetric) nuclear matter and finite nuclei is studied in the framework of a medium-modified Skyrme model. The proposed effective La…

cond-mat.stat-mech2009★ 13 cited

Spin operator matrix elements in the superintegrable chiral Potts quantum chain

N. Iorgov, S. Pakuliak, V. Shadura +2

We derive spin operator matrix elements between general eigenstates of the superintegrable Z_N-symmetric chiral Potts quantum chain of finite length. Our starting point is the exte…

astro-ph.CO2009★ 2 cited

Spin Flips: Variation in the Orientation of Dark Matter Halos over their Merger Histories

Philip Bett

Semi-analytic models of galaxy formation typically form the spheroidal components of galaxies ("bulges"), solely through galactic major mergers. However, it is possible that non-me…

astro-ph.EP2009★ 24 cited

Multi-band transit observations of the TrES-2b exoplanet

D. Mislis, S. Schroter, J. H. M. M. Schmitt +2

We present a new data set of transit observations of the TrES-2b exoplanet taken in spring 2009, using the 1.2m Oskar-Luhning telescope (OLT) of Hamburg Observatory and the 2.2m te…

hep-th2009★ 125 cited

F-Theory GUT Vacua on Compact Calabi-Yau Fourfolds

Thomas W. Grimm, Sven Krause, Timo Weigand

We present compact three-generation F-theory GUT models meeting in particular the constraints of D3-tadpole cancellation and D-term supersymmetry. To this end we explicitly constru…

hep-ph2009★ 9 cited

Cusp effects in meson decays

Bastian Kubis

The pion mass difference generates a pronounced cusp in the pi0 pi0 invariant mass distribution of K+ --> pi0 pi0 pi+ decays. As originally pointed out by Cabibbo, an accurate meas…

quant-ph2009★ 48 cited

Imprinting Patterns of Neutral Atoms in an Optical Lattice using Magnetic Resonance Techniques

Michał Karski, Leonid Förster, Jai-Min Choi +5

We prepare arbitrary patterns of neutral atoms in a one-dimensional (1D) optical lattice with single-site precision using microwave radiation in a magnetic field gradient. We give…

math.AP2009★ 1 cited

Weak-strong uniqueness for measure-valued solutions

Yann Brenier, Camillo De Lellis, László Székelyhidi

We prove the weak-strong uniqueness for measure-valued solutions of the incompressible Euler equations. These were introduced by R.DiPerna and A.Majda, and in particular global exi…

hep-ex2009★ 12 cited

Search for the associated production of a b quark and a neutral supersymmetric Higgs boson which decays to tau pairs

D0 Collaboration, V. M. Abazov

We report results from a search for production of a neutral Higgs boson in association with a quark. We search for Higgs decays to pairs with one subsequently decaying…

hep-ex2009★ 20 cited

Search for the Standard Model Higgs Boson in the ZH->vvbb Channel in 5.2 fb-1 of p-pbar Collisions at sqrt(s)=1.96 TeV

D0 Collaboration

A search is performed for the standard model Higgs boson in 5.2 fb-1 of p-pbar collisions at sqrt(s)=1.96 TeV, collected with the D0 detector at the Fermilab Tevatron Collider. The…

hep-ex2009★ 187 cited

Double parton interactions in photon+3 jet events in ppbar collisions sqrt{s}=1.96 TeV

D0 Collaboration

We have used a sample of photon+3 jets events collected by the D0 experiment with an integrated luminosity of about 1 fb^-1 to determine the fraction of events with double parton s…

hep-th2009★ 1 cited

Noncommutative Extension of Minkowski Spacetime and Its Primary Application

Yan-Gang Miao

We propose a noncommutative extension of the Minkowski spacetime by introducing a well-defined proper time from the kappa-deformed Minkowski spacetime related to the standard basis…

cs.IT2009★ 61 cited

Sparse Recovery from Combined Fusion Frame Measurements

Petros T. Boufounos, Gitta Kutyniok, Holger Rauhut

Sparse representations have emerged as a powerful tool in signal and information processing, culminated by the success of new acquisition and processing techniques such as Compress…

math.AG2009

Algebraic Surfaces in Positive Characteristic

Christian Liedtke

These notes are an introduction to and an overview of the theory of algebraic surfaces over algebraically closed fields of positive characteristic. After some background in charact…

nucl-th2009★ 103 cited

Lattice effective field theory calculations for A = 3,4,6,12 nuclei

Evgeny Epelbaum, Hermann Krebs, Dean Lee +1

We present lattice results for the ground state energies of tritium, helium-3, helium-4, lithium-6, and carbon-12 nuclei. Our analysis includes isospin-breaking, Coulomb effects, a…

math.AC2009★ 8 cited

Counting reducible, powerful, and relatively irreducible multivariate polynomials over finite fields

Joachim von zur Gathen, Alfredo Viola, Konstantin Ziegler

We present counting methods for some special classes of multivariate polynomials over a finite field, namely the reducible ones, the s-powerful ones (divisible by the s-th power of…

hep-th2009★ 47 cited

Five-Brane Superpotentials and Heterotic/F-theory Duality

Thomas W. Grimm, Tae-Won Ha, Albrecht Klemm +1

Under heterotic/F-theory duality it was argued that a wide class of heterotic five-branes is mapped into the geometry of an F-theory compactification manifold. In four-dimensional…

astro-ph.CO2009★ 45 cited

Mass-loss and expansion of ultra compact dwarf galaxies through gas expulsion and stellar evolution for top-heavy stellar initial mass functions

J. Dabringhausen, M. Fellhauer, P. Kroupa

(abridged) The dynamical V-band mass-to-light ratios of ultra compact dwarf galaxies (UCDs) are higher than predicted by simple stellar population models with the canonical stellar…

physics.ins-det2009★ 95 cited

Readiness of the ATLAS Liquid Argon Calorimeter for LHC Collisions

The ATLAS Collaboration

The ATLAS liquid argon calorimeter has been operating continuously since August 2006. At this time, only part of the calorimeter was readout, but since the beginning of 2008, all c…

nucl-ex2009★ 40 cited

Photoproduction of meson pairs: First measurement of the polarization observable I^s

E. Gutz, V. Sokhoyan, H. van Pee +64

The polarization observable I^s, a feature exclusive to the acoplanar kinematics of multi-meson final states produced via linearly polarized photons, has been measured for the firs…