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295 papers · 1 filter

hep-ex2008★ 25 cited

Search for anomalous top quark couplings with the D0 detector

D0 Collaboration, V. Abazov

Anomalous Wtb couplings modify the angular correlations of the top quark decay products and change the single top quark production cross section. We present limits on anomalous top…

hep-ex2008★ 42 cited

Measurement of Cross Sections for Jet Production in Events with a Boson in Collisions at TeV

CDF collaboration, T. Aaltonen

A measurement of the $\bjet$ production cross section is presented for events containing a boson produced in collisions at TeV, using data correspond…

hep-ex2008★ 369 cited

Unexplained Excess of Electron-Like Events From a 1-GeV Neutrino Beam

MiniBooNE Collaboration

The MiniBooNE Collaboration observes unexplained electron-like events in the reconstructed neutrino energy range from 200 to 475 MeV. With protons on target,…

hep-ex2008★ 55 cited

Observation of New Charmless Decays of Bottom Hadrons

CDF Collaboration, T. Aaltonen

We search for new charmless decays of neutral b-hadrons to pairs of charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding…

hep-ex2008★ 252 cited

Search for new particles decaying into dijets in proton-antiproton collisions at sqrt(s) = 1.96 TeV

The CDF Collaboration, T. Aaltonen

We present a search for new particles whose decays produce two jets (dijets) using proton-antiproton collision data corresponding to an integrated luminosity of 1.13 fb-1 collected…

astro-ph2008★ 42 cited

The Sloan Bright Arcs Survey : Six Strongly Lensed Galaxies at z=0.4-1.4

Jeffrey M. Kubo, Sahar S. Allam, James Annis +5

We present new results of our program to systematically search for strongly lensed galaxies in the Sloan Digital Sky Survey (SDSS) imaging data. In this study six strong lens syste…

astro-ph2008★ 21 cited

A novel method for the absolute fluorescence yield measurement by AIRFLY

AIRFLY Collaboration, M. Ave

One of the goals of the AIRFLY (AIR FLuorescence Yield) experiment is to measure the absolute fluorescence yield induced by electrons in air to better than 10% precision. We introd…

hep-ph2008★ 4 cited

Nuclear Parton Distribution Functions

I. Schienbein, J. Y. Yu, C. Keppel +3

We study nuclear effects of charged current deep inelastic neutrino-iron scattering in the framework of a chi^2 analysis of parton distribution functions (PDFs). We extract a set o…

hep-ph2008★ 92 cited

The PAMELA and ATIC Excesses From a Nearby Clump of Neutralino Dark Matter

Dan Hooper, Albert Stebbins, Kathryn M. Zurek

In this letter, we suggest that a nearby clump of 600-1000 GeV neutralinos may be responsible for the excesses recently observed in the cosmic ray positron and electron spectra by…

astro-ph2008★ 62 cited

Nucleosynthetic osmium isotope anomalies in acid leachates of the Murchison meteorite

L. Reisberg, N. Dauphas, A. Luguet +3

We present osmium isotopic results obtained by sequential leaching of the Murchison meteorite, which reveal the existence of very large internal anomalies of nucleosynthetic origin…

nlin.SI2008★ 16 cited

Shocks and finite-time singularities in Hele-Shaw flow

Seung-Yeop Lee, Razvan Teodorescu, Paul Wiegmann

Hele-Shaw flow at vanishing surface tension is ill-defined. In finite time, the flow develops cusp-like singularities. We show that the ill-defined problem admits a weak {\it dispe…

hep-ph2008★ 16 cited

Mass Hierarchy via Mossbauer and Reactor Neutrinos

Stephen Parke, Hisakazu Minakata, Hiroshi Nunokawa +1

We show how one could determine the neutrino mass hierarchy with Mossbauer neutrinos and also revisit the question of whether the hierarchy can be determined with reactor neutrinos…

hep-ph2008★ 15 cited

A light scalar as the messenger of electroweak and flavor symmetry breaking

J. D. Lykken, Z. Murdock, S. Nandi

We propose a new framework for understanding the hierarchies of fermion masses and mixings. The masses and mixings of all Standard Model (SM) charged fermions other than top arise…

astro-ph2008★ 6 cited

Backgrounds and Projected Limits from Dark Matter Direct Detection Experiments

Scott Dodelson

A simple formula is introduced which indicates the amount by which projections of dark matter direct detection experiments are expected to be degraded due to backgrounds.

hep-ex2008★ 1 cited

Central exclusive production at the Tevatron

Michael G. Albrow

In CDF we have observed several exclusive processes: 2-photon --> e+e- and --> mu+mu-, photon+pomeron --> J/psi and psi(2S), and pomeron+pomeron --> chi_c. The cross sections agree…

hep-ex2008★ 27 cited

Top Quark Mass Measurement in the Lepton plus Jets Channel Using a Modified Matrix Element Method

CDF Collaboration, T. Aaltonen

We report a measurement of the top quark mass, m_t, obtained from ppbar collisions at sqrt(s) = 1.96 TeV at the Fermilab Tevatron using the CDF II detector. We analyze a sample cor…

hep-ph2008★ 19 cited

Minimal Flavor Violation and the Scale of Supersymmetry Breaking

M. Carena, A. Menon, C. E. M. Wagner

In this paper we explore the constraints from B-physics observables in SUSY models of Minimal Flavor Violation, in the large tan beta regime, for both low and high scale supersymme…

hep-ex2008★ 66 cited

Search for top-quark production via flavor-changing neutral currents in W+1 jet events at CDF

CDF Collaboration, T. Aaltonen

We report on the first search for top-quark production via flavor-changing neutral-current (FCNC) interactions in the non-standard-model process u(c)+g -> t using ppbar collision d…

hep-ph2008★ 534 cited

Two-component spinor techniques and Feynman rules for quantum field theory and supersymmetry

Herbi K. Dreiner, Howard E. Haber, Stephen P. Martin

Two-component spinors are the basic ingredients for describing fermions in quantum field theory in four space-time dimensions. We develop and review the techniques of the two-compo…

astro-ph2008★ 113 cited

Reconstructing Patchy Reionization from the Cosmic Microwave Background

Cora Dvorkin, Kendrick M. Smith

We introduce a new statistical technique for extracting the inhomogeneous reionization signal from future high-sensitivity measurements of the cosmic microwave background temperatu…

hep-th2008★ 12 cited

Holographic Geometry and Noise in Matrix Theory

Craig J. Hogan, Mark G. Jackson

Using Matrix Theory as a concrete example of a fundamental holographic theory, we show that the emergent macroscopic spacetime displays a new macroscopic quantum structure, hologra…

hep-ph2008★ 78 cited

\sqrt{s}_min: a global inclusive variable for determining the mass scale of new physics in events with missing energy at hadron colliders

Partha Konar, Kyoungchul Kong, Konstantin T. Matchev

We propose a new global and fully inclusive variable \sqrt{s}_{min} for determining the mass scale of new particles in events with missing energy at hadron colliders. We define \sq…

astro-ph2008★ 5.4k cited

The Seventh Data Release of the Sloan Digital Sky Survey

K. Abazajian

This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDS…

astro-ph2008★ 252 cited

Non-linear Evolution of f(R) Cosmologies III: Halo Statistics

Fabian Schmidt, Marcos Lima, Hiroaki Oyaizu +1

The statistical properties of dark matter halos, the building blocks of cosmological observables associated with structure in the universe, offer many opportunities to test models…