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129 papers · 1 filter

cond-mat.str-el2004★ 22 cited

Electronic band structure of alfa-(Per)2M(mnt)2 compounds

Enric Canadell, Manuel Almeida, James Brooks

The band structure of alfa-(Per)2M(mnt)2, leads to a description of these materials as nearly perfectly one dimensional conductors. The conduction is mainly along the stacking dire…

nucl-ex2004★ 22 cited

- shell gap reduction in neutron-rich systems and cross-shell excitations in O

M. Wiedeking, S. L. Tabor, J. Pavan +15

Excited states in O were populated in the reaction Be(C,) at Florida State University. Charged particles were detected with a particle telescope consisting…

nlin.CD2004★ 51 cited

Multifractal Behavior of the Korean Stock-market Index KOSPI

Jae Woo Lee, Kyuoung Eun Lee, Per Arne Rikvold

We investigate multifractality in the Korean stock-market index KOSPI. The generalized th order height-height correlation function shows multiscaling properties. There are two s…

hep-ph2004★ 142 cited

Neutralino Cold Dark Matter in a One Parameter Extension of the Minimal Supergravity Model

Howard Baer, Azar Mustafayev, Stefano Profumo +2

Within the minimal supergravity model (mSUGRA) framework, the expectation for the relic density of neutralinos exceeds the WMAP determination unless neutralinos a) have a significa…

cond-mat.str-el2004★ 23 cited

Spin Liquid Behavior in Electronic Griffiths Phases

D. Tanaskovic, V. Dobrosavljevic, E. Miranda

We examine the interplay of the Kondo effect and the RKKY interactions in electronic Griffiths phases using extended dynamical mean-field theory methods. We find that sub-Ohmic dis…

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…

cond-mat.mes-hall2004★ 27 cited

Microwave resonance of the reentrant insulating quantum Hall phases in the 1st excited Landau Level

R. M. Lewis, Yong P. Chen, L. W. Engel +3

We present measurements of the real diagonal microwave conductivity of the reentrant insulating quantum Hall phases in the first excited Landau level at temperatures below 50 mK. A…

cond-mat.str-el2004★ 67 cited

Magnetic field-tuned quantum critical point in CeAuSb_2

L. Balicas, S. Nakatsuji, H. Lee +3

Transport, magnetic and thermal properties at high magnetic fields (H) and low temperatures (T) of the heavy fermion compound CeAuSb_2 are reported. At H=0 this layered system exhi…

cond-mat.supr-con2004★ 25 cited

Superconductivity in MgB_2 doped with Ti and C

R. H. T. Wilke, S. L. Bud'ko, P. C. Canfield +6

Measurements of the superconducting upper critical field, H_{c2}, and critical current density, J_c, have been carried out for MgB_2 doped with Ti and/or C in order to explore the…

q-bio.SC2004★ 2 cited

Collective charge excitations along cell membranes

Efstratios Manousakis

A significant part of the thin layers of counter-ions adjacent to the exterior and interior surfaces of a cell membrane form quasi-two-dimensional (2D) layers of mobile charge. Col…

nucl-ex2004★ 78 cited

29Na: Defining the edge of the Island of Inversion for Z=11

Vandana Tripathi, S. L. Tabor, P. F. Mantica +10

The low-energy level structure of the exotic Na isotopes 28,29Na has been investigated through beta-delayed gamma spectroscopy. The N=20 isotones for Z=10-12 are considered to belo…

nucl-th2004★ 11 cited

The nuclear pairing problem: new perspectives

Vladimir Zelevinsky, Alexander Volya

The overview of the Exact Pairing technique based on the quasispin symmetry is presented. Extensions of this method are discussed in relation to mean field, quadrupole collectivity…

cond-mat.str-el2004★ 23 cited

Temperature and Magnetic Field Enhanced Hall Slope of a Dilute 2D Hole System in the Ballistic Regime

Xuan P. A. Gao, G. S. Boebinger, A. P. Mills +3

We report the temperature() and perpendicular magnetic field() dependence of the Hall resistivity of dilute metallic two-dimensional(2D) holes in GaAs over a broa…

cond-mat.mtrl-sci2004★ 57 cited

High-frequency electron paramagnetic resonance investigation of the Fe3+ impurity center in polycrystalline PbTiO3 in its ferroelectric phase

Hrvoje Mestric, Ruediger-A. Eichel, Klaus-P. Dinse +3

The intrinsic iron(III) impurity center in polycrystalline lead titanate was investigated by means of high-frequency electron paramagnetic resonance (EPR) spectroscopy in order to…

nucl-ex2004★ 84 cited

Nuclear Modification Factors for Hadrons At Forward and Backward Rapidities in Deuteron-Gold Collisions at sqrt(s_NN) = 200 GeV

PHENIX Collaboration, S. S. Adler

We report on charged hadron production in deuteron-gold reactions at sqrt(s_NN) = 200 GeV. Our measurements in the deuteron-direction cover 1.4 < eta < 2.2, referred to as forward…

cond-mat.stat-mech2004★ 38 cited

Decay of metastable phases in a model for the catalytic oxidation of CO

E. Machado, G. M. Buendia, P. A. Rikvold

We study by kinetic Monte Carlo simulations the dynamic behavior of a Ziff-Gulari-Barshad model with CO desorption for the reaction CO + O CO on a catalytic surface. Fini…

hep-ph2004★ 1 cited

SUSY: Theory Status in the Light of Experimental Constraints

Alexander Belyaev

Supersymmetry remains compelling theory over 30 years in spite of lack of its discovery. It could be already near the corner our days, therefore present and upcoming experiments ar…

hep-ph2004★ 408 cited

Physics Interplay of the LHC and the ILC

LC Study Group, G. Weiglein, T. Barklow +120

Physics at the Large Hadron Collider (LHC) and the International e+e- Linear Collider (ILC) will be complementary in many respects, as has been demonstrated at previous generations…

hep-ex2004★ 24 cited

A Measurement of the Ratio of Inclusive Cross Sections pp->Z+b-jet/pp->Z+jet at sqrt(s) = 1.96-TeV

D0 Collaboration, V. M. Abazov

Using the data collected with the DZero detector at sqrt(s)=1.96-TeV, for integrated luminosities of about 180 pb^{-1}, we have measured the ratio of inclusive cross sections for p…

hep-ex2004★ 32 cited

Measurement of the WW production cross section in p anti-p collisions at s**(1/2) = 1.96 TeV

D0 Collaboration, V. M. Abazov

We present a measurement of the W boson pair-production cross section in p anti-p collisions at a center-of-mass energy of sqrt{s}=1.96 TeV. The data, collected with the Run II DO…

hep-ex2004★ 26 cited

A search for W bb and W Higgs production in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

We present a search for W b \bar{b} production in p \bar{p} collisions at sqrt{s}=1.96 TeV in events containing one electron, an imbalance in transverse momentum, and two b-tagged…

hep-ex2004★ 21 cited

Measurement of the Lambda^0_b lifetime in the decay Lambda^0_b -> J/psi Lambda^0 with the D0 Detector

D0 Collaboration, V. M. Abazov

We present measurements of the Lambda^0_b lifetime in the exclusive decay channel Lambda^0_{b}->J/psi Lambda^0, with J/psi to mu+ mu- and Lambda^0 to p pi-, the B^0 lifetime in the…

nucl-ex2004★ 22 cited

Complete measurement of three-body photodisintegration of 3He for photon energies between 0.35 and 1.55 GeV

CLAS Collaboration, S. Niccolai, G. Audit +3

The three-body photodisintegration of 3He has been measured with the CLAS detector at Jefferson Lab, using tagged photons of energies between 0.35 GeV and 1.55 GeV. The large accep…

cond-mat.stat-mech2004★ 2 cited

Introduction to Markov Chain Monte Carlo Simulations and their Statistical Analysis

Bernd A. Berg

This article is a tutorial on Markov chain Monte Carlo simulations and their statistical analysis. The theoretical concepts are illustrated through many numerical assignments from…