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Showing 2011Show all

470 papers · 1 filter

q-bio.QM2011★ 14 cited

Bifurcations of Emergent Bursting in a Neuronal Network

Yu Wu, Wenlian Lu, Wei Lin +2

Currently we routinely develop a complex neuronal network to explain observed but often paradoxical phenomena based upon biological recordings. Here we present a general approach t…

cs.DB2011

Capturing Topology in Graph Pattern Matching

Shuai Ma, Yang Cao, Wenfei Fan +2

Graph pattern matching is often defined in terms of subgraph isomorphism, an NP-complete problem. To lower its complexity, various extensions of graph simulation have been consider…

math.NA2011★ 5 cited

Multilevel quasiseparable matrices in PDE-constrained optimization

Jacek Gondzio, Pavel Zhlobich

Optimization problems with constraints in the form of a partial differential equation arise frequently in the process of engineering design. The discretization of PDE-constrained o…

hep-ex2011★ 448 cited

Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV

ATLAS Collaboration

The jet energy scale (JES) and its systematic uncertainty are determined for jets measured with the ATLAS detector at the LHC in proton-proton collision data at a centre-of-mass en…

hep-lat2011

M_b and f_B from non-perturbatively renormalized HQET with Nf=2 light quarks

Benoît Blossier, John Bulava, Michele Della Morte +7

We present an updated analysis of the non-perturbatively renormalized b-quark mass and B meson decay constant based on CLS lattices with two dynamical non-perturbatively improved W…

astro-ph.CO2011★ 45 cited

Environmental effects in the interaction and merging of galaxies in zCOSMOS

P. Kampczyk, S. J. Lilly, L. de Ravel +56

(Abridged) We analyze the environments and galactic properties (morphologies and star-formation histories) of a sample of 153 close kinematic pairs in the redshift range 0.2 < z <…

q-bio.PE2011★ 20 cited

Noise-driven oscillations in microbial population dynamics

Bhavin S. Khatri, Andrew Free, Rosalind J. Allen

Microbial populations in the natural environment are likely to experience growth conditions very different from those of a typical laboratory xperiment. In particular, removal rate…

hep-ex2011★ 42 cited

Measurement of mixing and CP violation parameters in two-body charm decays

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

A study of mixing and indirect CP violation in D0 mesons through the determination of the parameters y_CP and A_Γ is presented. The parameter y_CP is the deviation from unity of th…

nucl-ex2011★ 25 cited

Resonances in 19Ne with relevance to the astrophysically important 18F(p,α)15O reaction

D. J. Mountford, A. St J. Murphy, N. L. Achouri +11

The most intense gamma-ray line observable from novae is likely to be from positron annihilation associated with the decay of 18F. The uncertainty in the destruction rate of this n…

hep-ex2011★ 53 cited

Measurement of charged particle multiplicities in collisions at TeV in the forward region

LHCb Collaboration, R. Aaij, C. Abellan Beteta +589

The charged particle production in proton-proton collisions is studied with the LHCb detector at a centre-of-mass energy of TeV in different intervals of pseudorapid…

hep-ph2011

The NNPDF2.2 Parton Set

Francesco Cerutti, Nathan Hartland

We present a method developed by the NNPDF Collaboration that allows the inclusion of new experimental data into an existing set of parton distribution functions without the need f…

astro-ph.CO2011★ 109 cited

NIR Spectroscopy of Star-Forming Galaxies at z~1.4 with Subaru/FMOS: The Mass-Metallicity Relation

Kiyoto Yabe, Kouji Ohta, Fumihide Iwamuro +16

We present near-infrared spectroscopic observations of star-forming galaxies at z~1.4 with FMOS on the Subaru Telescope. We observed K-band selected galaxies in the SXDS/UDS fields…

astro-ph.EP2011★ 123 cited

An icy Kuiper-Belt around the young solar-type star HD 181327

J. Lebreton, J. -C. Augereau, W. -F. Thi +18

HD 181327 is a young F5/F6V star belonging to the Beta Pictoris moving group (12 Myr). It harbors an optically thin belt of circumstellar material at 90 AU. We aim to study the dus…

astro-ph.GA2011★ 169 cited

More on the structure of tidal tails

Andreas H. W. Kuepper, Richard R. Lane, Douglas C. Heggie

We investigate the epicyclic motion of stars escaping from star clusters. Using streaklines, we visualise the path of escaping stars and show how epicyclic motion leads to over- an…

hep-lat2011★ 2 cited

Nucleon sigma terms for 2+1 quark flavours

R. Horsley, Y. Nakamura, H. Perlt +7

QCD lattice simulations yield hadron masses as functions of the quark masses. From the gradients of the hadron masses the sigma terms can then be determined. We consider here dynam…

astro-ph.SR2011★ 65 cited

The VLT-FLAMES Tarantula Survey: The fastest rotating O-type star and shortest period LMC pulsar - remnants of a supernova disrupted binary?

P. L. Dufton, P. R. Dunstall, C. J. Evans +12

We present a spectroscopic analysis of an extremely rapidly rotating late O-type star, VFTS102, observed during a spectroscopic survey of 30 Doradus. VFTS102 has a projected rotati…

nucl-ex2011★ 156 cited

Discovery and Cross-Section Measurement of Neutron-Rich Isotopes in the Element Range from Neodymium to Platinum at the FRS

J. Kurcewicz, F. Farinon, H. Geissel +46

With a new detector setup and the high-resolution performance of the fragment separator FRS at GSI we discovered 57 new isotopes in the atomic number range of 60: \…

astro-ph.CO2011★ 36 cited

The impact of high spatial frequency atmospheric distortions on weak lensing measurements

Catherine Heymans, Barnaby Rowe, Henk Hoekstra +4

High precision cosmology with weak gravitational lensing requires a precise measure of the Point Spread Function across the imaging data where the accuracy to which high spatial fr…

hep-ex2011★ 215 cited

Measurement of inclusive jet and dijet production in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector

ATLAS Collaboration

Inclusive jet and dijet cross sections have been measured in proton-proton collisions at a centre-of-mass energy of 7 TeV using the ATLAS detector at the Large Hadron Collider. The…

astro-ph.GA2011★ 159 cited

MOCCA Code for Star Cluster Simulations - II. Comparison with N-body Simulations

Mirek Giersz, Douglas C. Heggie, Jarrod Hurley +1

We describe a major upgrade of a Monte Carlo code which has previously been used for many studies of dense star clusters. We outline the steps needed in order to calibrate the resu…

hep-ex2011★ 43 cited

Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration

This letter presents a search for singly produced vector-like quarks, Q, coupling to light quarks, q. The search is sensitive to both charged current (CC) and neutral current (NC)…

astro-ph.CO2011★ 47 cited

Planck Intermediate Results. I. Further validation of new Planck clusters with XMM-Newton

The Planck Collaboration, N. Aghanim, M. Arnaud +182

We present further results from the ongoing XMM-Newton validation follow-up of Planck cluster candidates, detailing X-ray observations of eleven candidates detected at a signal-to-…

hep-ex2011★ 179 cited

Observation of X(3872) production in pp collisions at sqrt(s)= 7 TeV

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

Using 34.7 pb-1 of data collected with the LHCb detector, the inclusive production of the X(3872) meson in pp collisions at sqrt(s) = 7 TeV is observed for the first time. Candidat…

hep-ex2011★ 106 cited

Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

ATLAS Collaboration

The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data samp…