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308 papers · 1 filter

hep-th2006★ 7 cited

IIA moduli stabilization with badly broken supersymmetry

Michael Dine, Alexander Morisse, Assaf Shomer +1

Scherk-Schwarz compactification in string theory can be defined as orbifolding by an R symmetry, a symmetry that acts differently on bosons and fermions. Such a symmetry can arise…

cond-mat.mtrl-sci2006★ 32 cited

Monte Carlo Simulation of Electron Transport in Degenerate Semiconductors

Mona Zebarjadi, Ceyhun Bulutay, Keivan Esfarjani +1

A modified algorithm is proposed to include Pauli exclusion principle in Monte-Carlo simulations. This algorithm has significant advantages to implement in terms of simplicity, spe…

math.DG2006★ 4 cited

G_2 and the "Rolling Distribution"

Gil Bor, Richard Montgomery

Associated to the problem of rolling one surface along another there is a five-manifold M with a rank two distribution. If the two surfaces are spheres then M is the product of the…

hep-ph2006★ 58 cited

The Neutralino Sector in the U(1)-Extended Supersymmetric Standard Model

S. Y. Choi, H. E. Haber, J. Kalinowski +1

Motivated by grand unified theories and string theories we analyze the general structure of the neutralino sector in the USSM, an extension of the Minimal Supersymmetric Standard M…

astro-ph2006★ 70 cited

Spectroscopy of z~6 i-dropout Galaxies: Frequency of Ly-alpha Emission and the Sizes of Ly-alpha Emitting Galaxies

C. C. Dow-Hygelund, B. P. Holden, R. Bouwens +8

We report on deep spectroscopy using LRIS on Keck I and FORS2 on the VLT of a sample of 22 candidate z~6 Lyman Break galaxies (LBGs) selected by the i-z> 1.3 dropout criterion. Red…

cs.CC2006★ 1 cited

On the Solution-Space Geometry of Random Constraint Satisfaction Problems

Dimitris Achlioptas, Federico Ricci-Tersenghi

For a large number of random constraint satisfaction problems, such as random k-SAT and random graph and hypergraph coloring, there are very good estimates of the largest constrain…

astro-ph2006★ 9 cited

Damp Mergers: Recent Gaseous Mergers without Significant Globular Cluster Formation?

Duncan A. Forbes, Robert Proctor, Jay Strader +1

Here we test the idea that new globular clusters (GCs) are formed in the same gaseous ("wet") mergers or interactions that give rise to the young stellar populations seen in the ce…

astro-ph2006★ 33 cited

Radius Dependent Luminosity Evolution of Blue Galaxies in GOODS-N

J. Melbourne, A. C. Phillips, J. Harker +3

We examine the radius-luminosity (R-L) relation for blue galaxies in the Team Keck Redshift Survey (TKRS) of GOODS-N. We compare with a volume-limited, Sloan Digital Sky Survey sam…

hep-ex2006★ 66 cited

Measurement of the B0 --> pi l nu Form-Factor Shape and Branching Fraction, and Determination of |Vub| with a Loose Neutrino Reconstruction Technique

B. Aubert et al.

We report the results of a study of the exclusive charmless semileptonic decay, B --> pi l nu, undertaken with approximately 227 million BBbar pairs collected at the Upsilon(4S) re…

hep-th2006★ 28 cited

Measures on transitions for cosmology from eternal inflation

Anthony Aguirre, Steven Gratton, Matthew C Johnson

We argue that in the context of eternal inflation in the landscape, making predictions for cosmological -- and possibly particle physics -- observables requires a measure on the po…

hep-ex2006★ 11 cited

Evidence for B0->rho0rho0 Decay and Implications for the CKM Angle alpha

The BABAR Collaboration, B. Aubert

We search for the decays B0->rho0rho0, B0->rho0f0, and B0->f0f0 in a sample of about 384 million Upsilon(4S)->BBbar decays collected with the BABAR detector at the PEP-II asymmetri…

hep-ex2006★ 28 cited

Branching Fraction Measurements of B+ -> rho+ gamma, B0 -> rho0 gamma, and B0 -> omega gamma

The BABAR Collaboration, B. Aubert

We present a study of the decays B+ -> rho+ gamma, B0 -> rho0 gamma, and B0 -> omega gamma. The analysis is based on data containing 347 million BBbar events recorded with the BaBa…

cond-mat.stat-mech2006★ 89 cited

Non-equilibrium work fluctuations for oscillators in non-Markovian baths

Trieu Mai, Abhishek Dhar

We study work fluctuation theorems for oscillators in non-Markovian heat baths. By calculating the work distribution function for a harmonic oscillator with motion described by the…

astro-ph2006★ 159 cited

Dynamics of Planetary Systems in Star Clusters

R. Spurzem, M. Giersz, D. C. Heggie +1

At least 10-15% of nearby sun-like stars have known Jupiter-mass planets. In contrast, very few planets are found in mature open and globular clusters such as the Hyades and 47 Tuc…

astro-ph2006★ 32 cited

A Photometric and Spectroscopic Search for White Dwarfs in the Open Clusters NGC 6633 and NGC 7063

Kurtis A. Williams, Michael Bolte

We present photometric and spectroscopic studies of the white dwarf (WD) populations in the intermediate-age open clusters NGC 6633 and NGC 7063 as part of the ongoing Lick-Arizona…

astro-ph2006★ 29 cited

Relativistic Effects in Extrasolar Planetary Systems

Fred C. Adams, Gregory Laughlin

This paper considers general relativistic (GR) effects in currently observed extrasolar planetary systems. Although GR corrections are small, they can compete with secular interact…

q-bio.QM2006

Microcolony and Biofilm Formation as a Survival Strategy for Bacteria

Leah R. Johnson

Bacterial communities such as biofilms are widely recognised as being important for survival and persistence of bacteria in harsh environments. Mechanistic models of biofilm growth…

astro-ph2006★ 146 cited

Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars

J. T. Wright, G. W. Marcy, D. A. Fischer +8

We present four new exoplanets: HIP 14810 b & c, HD 154345 b, and HD 187123 c. The two planets orbiting HIP 14810, from the N2K project, have masses of 3.9 and 0.76 M_jup. We have…

astro-ph2006★ 35 cited

Observations of the Unidentified TeV Gamma-Ray Source TeV J2032+4130 with the Whipple Observatory 10 m Telescope

A. Konopelko, R. W. Atkins, G. Blaylock +58

We report on observations of the sky region around the unidentified TeV gamma-ray source TeV J2032+4130 carried out with the Whipple Observatory 10 m atmospheric Cherenkov telescop…

hep-ex2006★ 13 cited

Measurement of B Decays to phi K gamma

The BABAR Collaboration, B. Aubert

We search for the decays B- -> phi K- gamma and B0bar -> phi K0bar gamma in a data sample of 228 million BBbar pairs collected at the Upsilon(4S) resonance with the BaBar detector.…

astro-ph2006★ 213 cited

Discovery of TeV Gamma-Ray Emission from the Cygnus Region of the Galaxy

A. A. Abdo, B. Allen, D. Berley +36

The diffuse gamma radiation arising from the interaction of cosmic ray particles with matter and radiation in the Galaxy is one of the few probes available to study the origin of t…

astro-ph2006★ 29 cited

Measuring Neutron Star Mass and Radius with Three Mass-Radius Relations

C. M. Zhang, H. X. Yin, Y. Kojima +5

We propose to determine the mass and the radius of a neutron star (NS) using three measurable mass-radius relationships, namely the ``apparent'' radius inferred from neutron star t…

astro-ph2006★ 4 cited

How Did the IGM Become Enriched?

Anthony Aguirre, Joop Schaye

The enrichment of the intergalactic medium with heavy elements is a process that lies at the nexus of poorly-understood aspects of physical cosmology. We review current understandi…

math.CA2006

Exact solution of a nonlinear optimization problem

Zhixi Bian, Hongyun Wang, Qiaoer Zhou +1

In this manuscript, we solve a nonlinear optimization problem in the study of maximizing cooling temperature using inhomogeneous thermoelectric materials.