most citedObservation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

10.9k citations

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539 papers · 1 filter

astro-ph.CO2012★ 56 cited

Surface Density of dark matter haloes on galactic and cluster scales

A. Del Popolo, V. Cardone, G. Belvedere

In this paper, in the framework of the secondary infall model, the correlation between the central surface density and the halo core radius of galaxy, and cluster of galaxies, dark…

math.DS2012★ 17 cited

Global phase portraits of quadratic polynomial differential systems with a semi-elemental triple node

Joan C. Artés, Alex C. Rezende, Regilene D. S. Oliveira

Planar quadratic differential systems occur in many areas of applied mathematics. Although more than one thousand papers have been written on these systems, a complete understandin…

hep-th2012★ 8 cited

Higher-Derivative Wess-Zumino Model in Three Dimensions

E. A. Gallegos, C. R. Senise, A. J. da Silva

We deform the well-known three dimensional Wess-Zumino model by adding higher derivative operators (Lee-Wick operators) to its action. The effects of these operator…

hep-th2012★ 2 cited

Effective potential for a SUSY Lee-Wick model: the Wess-Zumino case

M. Dias, A. Yu. Petrov, C. R. Senise +1

Using a superfield generalization of the tadpole method, we study the one-loop effective potential for a Wess Zumino model modified by a higher-derivative term, inspired by the Lee…

hep-ph2012

Further results on peripheral-tube model for ridge correlation

Yogiro Hama, Rone P. G. Andrade, Frederique Grassi +2

Peripheral one-tube model has shown to be a nice tool for dynamically understanding several aspects of ridge structures in long-range two-particle correlations, observed experiment…

hep-th2012★ 52 cited

Effects of a CPT-even and Lorentz-violating nonminimal coupling on the electron-positron scattering

R. Casana, M. M. Ferreira, R. V. Maluf +1

We propose a new \emph{CPT}-even and Lorentz-violating nonminimal coupling between fermions and Abelian gauge fields involving the CPT-even tensor of the standard…

hep-ex2012★ 36 cited

Multi-channel search for squarks and gluinos in sqrt(s)=7 TeV pp collisions with the ATLAS detector

ATLAS Collaboration

A search for supersymmetric particles in final states with zero, one, and two leptons, with and without jets identified as originating from b-quarks, in 4.7 fb-1 of sqrt(s)=7 TeV p…

cond-mat.quant-gas2012★ 10 cited

Supersonic flow of a Bose-Einstein condensate past an oscillating attractive-repulsive obstacle

Eduardo G. Khamis, Arnaldo Gammal

We investigate by numerical simulations the pattern formation after an oscillating attractive-repulsive obstacle inserted into the flow of a Bose-Einstein condensate. For slow osci…

astro-ph.CO2012★ 16 cited

Discovery of an Halpha emitting disk around the supermassive black hole of M31

R. B. Menezes, J. E. Steiner, T. V. Ricci

Due to its proximity, the mass of the supermassive black hole in the nucleus of Andromeda galaxy (M31), the most massive black hole in the Local Group of galaxies, has been measure…

astro-ph.CO2012★ 72 cited

Spherical collapse model with shear and angular momentum in dark energy cosmologies

A. Del Popolo, F. Pace, J. A. S. Lima

We study, for the first time, how shear and angular momentum modify typical parameters of the spherical collapse model, in dark energy dominated universes. In particular, we study…

quant-ph2012★ 2 cited

Bell inequality violations under reasonable and under weak hypotheses

Edson de Faria, Charles Tresser

Given a sequence of pairs of spin-one half particles in the singlet state, assume that Alice measures the normalized projections along some vector of the spins of one vector per pa…

cs.CR2012★ 2 cited

Scaling efficient code-based cryptosystems for embedded platforms

Felipe P. Biasi, Paulo S. L. M. Barreto, Rafael Misoczki +1

We describe a family of highly efficient codes for cryptographic purposes and dedicated algorithms for their manipulation. Our proposal is especially tailored for highly constraine…

nucl-ex2012★ 56 cited

Medium modification of jet fragmentation in Au+Au collisions at sqrt(s_NN)=200 GeV measured in direct photon-hadron correlations

A. Adare, S. Afanasiev, C. Aidala +559

The jet fragmentation function is measured with direct photon-hadron correlations in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV. The p_T of the photon is an excellent approxima…

nucl-th2012★ 47 cited

The nuclear and Coulomb breakup of the weakly bound Li with targets in the range from A = 59 to 208

D. R. Otomar, P. R. S. Gomes, J. Lubian +2

We have performed CDCC calculations for the Li + Co, Sm and Pb systems, to investigate the dependence of the relative importance of nuclear and Coulomb…

astro-ph.HE2012★ 102 cited

Constraints on the origin of cosmic rays above eV from large scale anisotropy searches in data of the Pierre Auger Observatory

Pierre Auger Collaboration

A thorough search for large scale anisotropies in the distribution of arrival directions of cosmic rays detected above eV at the Pierre Auger Observatory is reported. For…

physics.soc-ph2012★ 5 cited

Axelrod's Model with Surface Tension

Bruno Pace, Carmen P. C. Prado

In this work we propose a subtle change in Axelrod's model for the dissemination of culture. The mechanism consists of excluding non-interacting neighbours from the set of neighbou…

cond-mat.mtrl-sci2012★ 50 cited

Ferrimagnetism and spin canting of ZnFe2O4 nanoparticles embedded in ZnO matrix

G. F. Goya, E. R. Leite

The structural and magnetic properties of ZnFe2O4 nanoparticles embedded in a non-magnetic ZnO matrix are presented. X-ray diffractograms and Transmission Electron Microscopy (TEM)…

physics.data-an2012★ 27 cited

Characterization of nanostructured material images using fractal descriptors

João B. Florindo, Mariana S. Sikora, Ernesto C. Pereira +1

This work presents a methodology to the morphology analysis and characterization of nanostructured material images acquired from FEG-SEM (Field Emission Gun-Scanning Electron Micro…

quant-ph2012★ 21 cited

Quantum discord in nuclear magnetic resonance systems at room temperature

J. Maziero, R. Auccaise, L. C. Celeri +6

We review the theoretical and the experimental aspects regarding the quantification and identification of quantum correlations in liquid-state nuclear magnetic resonance (NMR) syst…

cond-mat.mes-hall2012★ 15 cited

Generalized correlation functions for conductance fluctuations and the mesoscopic spin Hall effect

J. G. G. S. Ramos, A. L. R. Barbosa, D. Bazeia +2

We study the spin-Hall conductance fluctuations in ballistic mesoscopic systems. We obtain universal expressions for the spin and charge current fluctuations, cast in terms of curr…

hep-ex2012★ 6 cited

Comparisons of annual modulations in MINOS with the event rate modulation in CoGeNT

MINOS Collaboration

The CoGeNT collaboration has recently published results from a fifteen month data set which indicate an annual modulation in the event rate similar to what is expected from weakly…

physics.bio-ph2012★ 18 cited

Microcanonical thermostatistics of coarse-grained proteins with amyloidogenic propensity

Rafael B. Frigori, Leandro G. Rizzi, Nelson A. Alves

The formation of fibrillar aggregates seems to be a common characteristic of polypeptide chains, although the observation of these aggregates may depend on appropriate experimental…

astro-ph.CO2012★ 1 cited

Cosmology with large redshift surveys

Laerte Sodre

Galaxy redshift surveys are a major tool to address the most challenging cosmological problems facing cosmology, like the nature of dark energy and properties dark matter. The same…

astro-ph.SR2012★ 103 cited

First stars XVI. STIS/HST abundances of heavy-elements in the uranium-rich star CS 31082-001

C. Siqueira Mello, M. Spite, B. Barbuy +14

Detailed abundances of the elements produced by r-process nucleosynthesis in various circumstances are our best observational clues to their origin, since the site(s) of r-element…