output
19922026
Showing 2011Show all

715 papers · 1 filter

cond-mat.str-el2011★ 69 cited

Cluster-size dependence in cellular dynamical mean-field theory

Shiro Sakai, Giorgio Sangiovanni, Marcello Civelli +3

We examine the cluster-size dependence of the cellular dynamical mean-field theory (CDMFT) applied to the two-dimensional Hubbard model. Employing the continuous-time quantum Monte…

cond-mat.mtrl-sci2011★ 13 cited

Refractive index of vanadium determined by resonant diffraction of soft x-rays

Martin Magnuson, Coryn F. Hague

The dispersive part of the refractive index of vanadium is determined by measuring the angular displacement of the first order diffraction peak of a V/Fe superlattice. The measurem…

cond-mat.mes-hall2011★ 18 cited

Many-body effects in magnetic inelastic electron tunneling spectroscopy

Richard Korytár, Nicolás Lorente, Jean-Pierre Gauyacq

Magnetic inelastic electron tunneling spectroscopy (IETS) shows sharp increases in conductance when a new conductance channel associated to a change in magnetic structure is open.…

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…

cond-mat.supr-con2011★ 33 cited

Nodal Superconducting Order Parameter and Thermodynamic Phase Diagram of (TMTSF)2ClO4

Shingo Yonezawa, Yoshiteru Maeno, Klaus Bechgaard +1

The organic materials (TMTSF)2X are unique unconventional superconductors with archetypal quasi-one-dimensional (Q1D) electronic structures. Here, based on our comprehensive field-…

nucl-ex2011★ 38 cited

Q-Value and Half-Lives for the Double-Beta-Decay Nuclide 110Pd

D. Fink, J. Barea, D. Beck +17

The 110Pd double-beta decay Q-value was measured with the Penning-trap mass spectrometer ISOLTRAP to be Q = 2017.85(64) keV. This value shifted by 14 keV compared to the literature…

hep-ex2011★ 20 cited

Search for Higgs bosons of the minimal supersymmetric standard model in p-pbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration

We report results from searches for neutral Higgs bosons produced in p-pbar collisions recorded by the Dzero experiment at the Fermilab Tevatron Collider. We study the production o…

cond-mat.stat-mech2011

Number of relevant directions in Principal Component Analysis and Wishart random matrices

Satya N. Majumdar, Pierpaolo Vivo

We compute analytically, for large , the probability that a Wishart random matrix has eigenvalues exceeding a threshold , including it…

physics.acc-ph2011★ 46 cited

Non-planar four-mirror optical cavity for high intensity gamma ray flux production by pulsed laser beam Compton scattering off GeV-electrons

J. Bonis, R. Chiche, R. Cizeron +17

As part of the R&D toward the production of high flux of polarised Gamma-rays we have designed and built a non-planar four-mirror optical cavity with a high finesse and operated it…

hep-th2011★ 59 cited

Quantum Gravity and Renormalization: The Tensor Track

Vincent Rivasseau

We propose a new program to quantize and renormalize gravity based on recent progress on the analysis of large random tensors. We compare it briefly with other existing approaches.

cond-mat.mtrl-sci2011★ 53 cited

Spectroscopic mapping of local structural distortions in ferroelectric PbTiO3/SrTiO3 superlattices at the unit-cell scale

Almudena Torres-Pardo, Alexandre Gloter, Pavlo Zubko +5

The local structural distortions in polydomain ferroelectric PbTiO3/SrTiO3 superlattices are investigated by means of high spatial and energy resolution electron energy loss spectr…

hep-th2011★ 178 cited

Self-tuning and the derivation of the Fab Four

Christos Charmousis, Edmund J. Copeland, Antonio Padilla +1

We have recently proposed a special class of scalar tensor theories known as the Fab Four. These arose from attempts to analyse the cosmological constant problem within the context…

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…

cond-mat.stat-mech2011★ 57 cited

Universal Order Statistics of Random Walks

Gregory Schehr, Satya N. Majumdar

We study analytically the order statistics of a time series generated by the successive positions of a symmetric random walk of n steps with step lengths of finite variance σ^2. We…

hep-ph2011★ 10 cited

Invisible Higgs and Scalar Dark Matter

Y. Mambrini

In this proceeding, we show that when we combined WMAP and the most recent results of XENON100, the invisible width of the Higgs to scalar dark matter is negligible(<10%), except i…

math.CO2011★ 2 cited

A nilpotent Freiman dimension lemma

Emmanuel Breuillard, Ben Green, Terence Tao

We prove that a K-approximate subgroup of an arbitrary torsion-free nilpotent group can be covered by a bounded number of cosets of a nilpotent subgroup of bounded rank, where the…

cond-mat.mtrl-sci2011★ 90 cited

Coherent Phonon Coupling to Individual Bloch States in Photoexcited Bismuth

E. Papalazarou, J. Faure, J. Mauchain +8

We investigate the temporal evolution of the electronic states at the bismuth (111) surface by means of time and angle resolved photoelectron spectroscopy. The binding energy of bu…

cond-mat.stat-mech2011★ 37 cited

Wigner-Crystal Formulation of Strong-Coupling Theory for Counter-ions Near Planar Charged Interfaces

L. Šamaj, E. Trizac

We present a new analytical approach to the strong electrostatic coupling regime (SC), that can be achieved equivalently at low temperatures, high charges, low dielectric permittiv…

hep-ex2011★ 110 cited

Potential of a next generation neutrinoless double beta decay experiment based on ZnMoO4 scintillating bolometers

J. W. Beeman, F. A. Danevich, V. Ya. Degoda +12

The search for neutrinoless double beta decay probes lepton number conservation with high sensitivity and investigates the neutrino nature and mass scale. Experiments presently in…

nucl-ex2011★ 69 cited

Inclusive dielectron spectra in p+p collisions at 3.5 GeV

G. Agakishiev, A. Balanda, D. Belver +98

We present the inclusive invariant-mass, transverse momentum and rapidity distributions of dielectrons (ee pairs) in p+p interactions at 3.5 GeV beam kinetic energy. In…

hep-ph2011★ 37 cited

A consistent model for πN transition distribution amplitudes and backward pion electroproduction

J. P. Lansberg, B. Pire, K. Semenov-Tian-Shansky +1

The extension of the concept of generalized parton distributions leads to the introduction of baryon to meson transition distribution amplitudes (TDAs), non-diagonal matrix element…

math.CO2011

Contractions and expansion

Emmanuel Breuillard, Ben Green

Let A be a finite set of reals and let K >= 1 be a real number. Suppose that for each a in A we are given an injective map f_a : A -> R which fixes a and contracts other points tow…