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124 papers · 1 filter

hep-ph2003★ 10 cited

Probing Neutralino Resonance Annihilation via Indirect Detection of Dark Matter

Howard Baer, Jorge O' Farrill

The lightest neutralino of R-parity conserving supersymmetric models serves as a compelling candidate to account for the presence of cold dark matter in the universe. In the minima…

cond-mat.mes-hall2003★ 48 cited

Electron Scattering in AlGaN/GaN Structures

S. Syed, M. J. Manfra, Y. J. Wang +2

We present data on mobility lifetime, , quantum lifetime, , and cyclotron resonance lifetime, , of a sequence of high-mobility two-dimensional electron gases in t…

cond-mat.supr-con2003★ 356 cited

Systematic effects of carbon doping on the superconducting properties of Mg(BC)

R. H. T. Wilke, S. L. Bud'ko, P. C. Canfield +3

The upper critical field, , of Mg(BC) has been measured in order to probe the maximum magnetic field range for superconductivity that can be attained by C d…

nucl-th2003★ 120 cited

Unmasking the nuclear matter equation of state

J. Piekarewicz

Accurately calibrated (or ``best fit'') relativistic mean-field models are used to compute the distribution of isoscalar monopole strength in 90Zr and 208Pb, and the isovector dipo…

cond-mat.str-el2003★ 60 cited

High magnetic field induced charge density wave states in a quasi-one dimensional organic conductor

D. Graf, E. S. Choi, J. S. Brooks +3

We have measured the high field magnetoresistence and magnetization of quasi-one- dimensional (Q1D) organic conductor (Per)2Pt(mnt)2 (where Per = perylene and mnt = maleonitriledit…

cond-mat.str-el2003★ 27 cited

Charge-density Waves Survive the Pauli Paramagnetic Limit

R. McDonald, N. Harrison, L. Balicas +3

Measurements of the resistance of single crystals of (Per)Au(mnt) have been made at magnetic fields of up to 45 T, exceeding the Pauli paramagnetic limit of $B_{\rm P}\…

hep-ph2003★ 62 cited

Neutrino Dimuon Production and the Strangeness Asymmetry of the Nucleon

F. Olness, J. Pumplin, D. Stump +6

We have performed the first global QCD analysis to include the CCFR and NuTeV dimuon data, which provide direct constraints on the strange and anti-strange parton distributions, $s…

hep-ph2003★ 33 cited

FCNC top quark production via anomalous tqV couplings beyond leading order

Nikolaos Kidonakis, Alexander Belyaev

We calculate flavor-changing neutral-current (FCNC) processes involving top-quark production via anomalous tqV couplings at the Tevatron and HERA colliders. We cover the FCNC proce…

cond-mat.str-el2003★ 13 cited

Pseudogap behavior of nuclear spin relaxation in high Tc superconductors in terms of phase separation

L. P. Gor'kov, G. B. Teitel'baum

We analyze anew experiments on the NMR in cuprates and find an important information on their phase separation and its stripe character hidden in the dependence of o…

cond-mat.str-el2003★ 60 cited

Suppression of a charge density wave ground state in high magnetic fields: spin and orbital mechanisms

D. Graf, J. S. Brooks, E. S. Choi +4

The charge density wave (CDW) transition temperature in the quasi-one dimensional (Q1D) organic material of (Per)Au(mnt) is relatively low (TCDW = 12 K). Hence in a mean fi…

hep-ph2003★ 1 cited

Theoretical progress for the associated production of a Higgs boson with heavy quarks at hadron colliders

S. Dawson, C. B. Jackson, L. H. Orr +2

The production of a Higgs boson in association with a pair of top-antitop or bottom-antibottom quarks plays a very important role at both the Tevatron and the Large Hadron Collider…

hep-ph2003★ 2 cited

NLO QCD corrections to hadronic Higgs production with heavy quarks

S. Dawson, C. B. Jackson, L. H. Orr +2

The production of a Higgs boson in association with a pair of top-antitop or bottom-antibottom quarks plays a very important role at both the Tevatron and the Large Hadron Collider…

hep-ex2003★ 15 cited

Tensor Polarization of the phi meson Photoproduced at High t

K. McCormick, the CLAS collaboration

As part of a measurement of the cross section of meson photoproduction to high momentum transfer, we measured the polar angular decay distribution of the outgoing in the…

cond-mat.soft2003★ 9 cited

Shear induced grain boundary motion for lamellar phases in the weakly nonlinear regime

Zhi-Feng Huang, Jorge Vinals

We study the effect of an externally imposed oscillatory shear on the motion of a grain boundary that separates differently oriented domains of the lamellar phase of a diblock copo…

hep-ph2003★ 248 cited

Exclusive Higgs Boson Production with bottom quarks at Hadron Colliders

S. Dawson, C. B. Jackson, L. Reina +1

We present the next-to-leading order QCD corrected rate for the production of a scalar Higgs boson with a pair of high p_T bottom and anti-bottom quarks at the Tevatron and at the…

hep-ph2003★ 70 cited

Linear Collider Capabilities for Supersymmetry in Dark Matter Allowed Regions of the mSUGRA Model

Howard Baer, Alexander Belyaev, Tadas Krupovnickas +1

Recent comparisons of minimal supergravity (mSUGRA) model predictions with WMAP measurements of the neutralino relic density point to preferred regions of model parameter space. We…

hep-ph2003★ 617 cited

SUSY Les Houches Accord: Interfacing SUSY Spectrum Calculators, Decay Packages, and Event Generators

P. Skands, B. C. Allanach, H. Baer +20

An accord specifying a unique set of conventions for supersymmetric extensions of the Standard Model together with generic file structures for 1) supersymmetric model specification…

hep-ex2003★ 254 cited

Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton

V. Kubarovsky

The reaction was studied at Jefferson Lab using a tagged photon beam with an energy range of 3-5.47 GeV. A narrow baryon state with strangeness S=+1 and mass $M…

hep-ex2003★ 74 cited

Combination of CDF and D0 Results on W Boson Mass and Width

V. M. Abazov

The results based on 1992-95 data (Run 1) from the CDF and DO experiments on the measurements of the W boson mass and width are presented, along with the combined results. We repor…

cond-mat.str-el2003★ 42 cited

Kondo Scaling in the Optical Response of YbIn_(1-x)Ag_xCu_4

Jason N. Hancock, Tim McKnew, Zack Schlesinger +2

Theoretical work on Kondo systems predicts universality in the scaling of observable quantities with the Kondo temperature, T_K. Here we report infrared-frequency optical response…

hep-lat2003★ 20 cited

Dynamics of Phase Transitions by Hysteresis Methods I

Bernd A. Berg, Urs M. Heller, Hildegard Meyer-Ortmanns +1

In studies of the QCD deconfining phase transition or crossover by means of heavy ion experiments, one ought to be concerned about non-equilibrium effects due to heating and coolin…

cond-mat.str-el2003★ 57 cited

Phase Inhomogeneity of the Itinerant Ferromagnet MnSi at High Pressures

W. Yu, F. Zamborszky, J. D. Thompson +4

The pressure induced quantum phase transition of the weakly itinerant ferromagnet MnSi is studied using zero-field NMR spectroscopy and relaxation. Below $P^*\approx 1.2G…

cond-mat.mtrl-sci2003★ 4 cited

Angular Dependence of Switching Properties in Single Fe Nanopillars

G. Brown, S. M. Stinnett, M. A. Novotny +1

The continued increase in areal densities in magnetic recording makes it crucial to understand magnetization reversal in nanoparticles. We present finite-temperature micromagnetic…

nucl-th2003★ 29 cited

Quasielastic neutrino-nucleus scattering

B. I. S. van der Ventel, J. Piekarewicz

We study the sensitivity of neutral-current neutrino-nucleus scattering to the strange-quark content of the axial-vector form factor of the nucleon. A model-independent formalism f…