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Showing 2010Show all

181 papers · 1 filter

hep-ex2010★ 7 cited

Upsilon(1S)->gamma+f2'(1525); f2'(1525)->K0sK0s decays

The CLEO Collaboration, D. Besson, D. P. Hogan +83

We report on a study of exclusive radiative decays of the Upsilon(1S) resonance into a final state consisting of a photon and two K0s candidates. We find evidence for a signal for…

hep-ex2010★ 70 cited

Measurement of the top quark pair production cross section in the lepton+jets channel in proton-antiproton collisions at =1.96 TeV

D0 Collaboration, V. Abazov

We present a measurement of the inclusive top quark pair production cross section in \ppbar collisions at (\sqrt{s}=1.96) TeV utilizing data corresponding to an integrated luminosi…

hep-ex2010★ 212 cited

Measurement of the Inclusive Upsilon production cross section in pp collisions at sqrt(s)=7 TeV

CMS Collaboration

The Upsilon production cross section in proton-proton collisions at sqrt(s) = 7 TeV is measured using a data sample collected with the CMS detector at the LHC, corresponding to an…

cond-mat.str-el2010★ 60 cited

Quantum Criticality and the Kondo Lattice

Qimiao Si

Quantum phase transitions (QPTs) arise as a result of competing interactions in a quantum many-body system. Kondo lattice models, containing a lattice of localized magnetic moments…

physics.space-ph2010★ 6 cited

Solar sail propulsion: enabling new capabilities for heliophysics

L. Johnson, R. Young, D. Alhorn +13

Solar sails can play a critical role in enabling solar and heliophysics missions. Solar sail technology within NASA is currently at 80% of TRL-6, suitable for an in-flight technolo…

astro-ph.GA2010★ 11 cited

Radio and Gamma-Ray Constraints on the Emission Geometry and Birthplace of PSR J2043+2740

A. Noutsos, A. A. Abdo, M. Ackermann +146

We report on the first year of Fermi gamma-ray observations of pulsed high-energy emission from the old PSR J2043+2740. The study of the gamma-ray efficiency of such old pulsars gi…

cond-mat.str-el2010★ 21 cited

Incommensurate Magnetism in FeAs Strips: Neutron Scattering from CaFeAs

Yusuke Nambu, Liang L. Zhao, Emilia Morosan +7

Magnetism in the orthorhombic metal CaFeAs was examined through neutron diffraction for powder and single crystalline samples. Incommensurate (${\bm q}_{\rm m}\approx (0.37…

hep-ex2010★ 20 cited

Search for Pair Production of Second-Generation Scalar Leptoquarks in pp Collisions at sqrt(s) = 7 TeV

The CMS Collaboration

A search for pair production of second-generation scalar leptoquarks in the final state with two muons and two jets is performed using proton-proton collision data at sqrt(s) = 7 T…

hep-ex2010★ 24 cited

Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at sqrt(s) = 7 TeV

The CMS Collaboration

A search for pair production of first-generation scalar leptoquarks is performed in the final state containing two electrons and two jets using proton-proton collision data at sqrt…

cs.GR2010★ 61 cited

Chameleon: A Color-Adaptive Web Browser for Mobile OLED Displays

Mian Dong, Lin Zhong

Displays based on organic light-emitting diode (OLED) technology are appearing on many mobile devices. Unlike liquid crystal displays (LCD), OLED displays consume dramatically diff…

cs.NI2010★ 6 cited

Beamsteering on Mobile Devices: Network Capacity and Client Efficiency

Hang Yu, Lin Zhong, Ashutosh Sabharwal

Current and emerging mobile devices are omni directional in wireless communication. Such omni directionality not only limits device energy efficiency but also poses a significant c…

cond-mat.str-el2010★ 63 cited

Magnetoelectric coupling at the interface of BiFeO3/La0.7Sr0.3MnO3 multilayers

M. J. Calderon, S. Liang, R. Yu +6

Electric-field controlled exchange bias in a heterostructure composed of the ferromagnetic manganite La0.7Sr0.3MO3 and the ferroelectric antiferromagnetic BiFeO3 has recently been…

hep-ex2010★ 20 cited

Search for associated production in 5.3 fb of collisions at the Fermilab Tevatron

D0 Collaboration, V. Abazov

We present a search for associated production of Higgs and bosons in collisions at a center of mass energy of TeV in 5.3 fb of integrated lumi…

astro-ph.HE2010★ 2 cited

Perspectives on Gamma-Ray Pulsar Emission

Matthew G. Baring

Pulsars are powerful sources of radiation across the electromagnetic spectrum. This paper highlights some theoretical insights into non-thermal, magnetospheric pulsar gamma-ray rad…

cond-mat.str-el2010★ 10 cited

Effects of Berry phase and instantons in one dimensional Kondo-Heisenberg model

Pallab Goswami, Qimiao Si

Motivated by the global phase diagram of antiferromagnetic heavy-fermion metals, we study the Kondo effect from the perspective of a nonlinear sigma model in the one dimensional Ko…

cond-mat.mes-hall2010★ 11 cited

Why a magnetized quantum wire can act as an active laser medium

Manvir S Kushwaha

The fundamental issues associated with the magnetoplasmon excitations are investigated in a quantum wire characterized by a confining harmonic potential and subjected to a perpendi…

math.GR2010★ 23 cited

The complex of partial bases for F_n and finite generation of the Torelli subgroup of Aut(F_n)

Matthew B. Day, Andrew Putman

We study the complex of partial bases of a free group, which is an analogue for $\Aut(F_n)$ of the curve complex for the mapping class group. We prove that it is connected and simp…

hep-ex2010★ 87 cited

Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at sqrt(s) = 7 TeV

CMS Collaboration

The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy E_T-gamma in pp collisions at…

hep-ex2010★ 12 cited

Measurements of branching fractions for electromagnetic transitions involving the states

The CLEO Collaboration, M. Kornicer, R. E. Mitchell +82

Using 9.32, 5.88 million Upsilon(2S,3S) decays taken with the CLEO-III detector, we obtain five product branching fractions for the exclusive processes Upsilon(2S) => gamma chi_{b0…

astro-ph.HE2010★ 71 cited

Scientific Prospects for Hard X-ray Polarimetry

H. Krawczynski, A. Garson, Q. Guo +4

X-ray polarimetry promises to give qualitatively new information about high-energy sources. Examples of interesting source classes are binary black hole systems, rotation and accre…

cond-mat.mes-hall2010★ 9 cited

Spring-block approach for nanobristle patterns

Ferenc Járai-Szabó, Emőke-Ágnes Horvát, Robert Vajtai +1

A two dimensional spring-block type model is used to model capillarity driven self-organization of nanobristles. The model reveals the role of capillarity and van der Waals forces…

hep-ex2010★ 20 cited

Search for resonant WW and WZ production in ppbar collisions at ?s = 1.96 TeV

D0 Collaboration, V. Abazov

We search for resonant WW or WZ production using up to 5.4 fb-1 of integrated luminosity collected by the D0 experiment in Run II of the Fermilab Tevatron Collider. The data are co…

cond-mat.str-el2010★ 10 cited

Break up of heavy fermions at an antiferromagnetic instability

S. Friedemann, S. Wirth, S. Kirchner +7

We present results of high-resolution, low-temperature measurements of the Hall coefficient, thermopower, and specific heat on stoichiometric YbRh2Si2. They support earlier conclus…

hep-ex2010★ 53 cited

Search for Stopped Gluinos in pp collisions at sqrt s = 7 TeV

CMS Collaboration

The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived…