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19922026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

Showing 2008Show all

153 papers · 1 filter

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★ 33 cited

Simultaneous H.E.S.S. and Chandra observations of Sagittarius A* during an X-ray flare

H. E. S. S. Collaboration, :, F. Aharonian

The rapidly varying (~10 minute timescale) non-thermal X-ray emission observed from Sgr A* implies that particle acceleration is occuring close to the event horizon of the supermas…

astro-ph2008★ 62 cited

Very high energy gamma-ray observations of the galaxy clusters Abell 496 and Abell 85 with H.E.S.S

H. E. S. S. Collaboration, :, F. Aharonian

Aims: The nearby galaxy clusters Abell 496 and Abell 85 are studied in the very high energy (VHE, E > 100 GeV) band to investigate VHE cosmic rays (CRs) in this class of objects wh…

hep-th2008★ 9 cited

Refining the Shifted Topological Vertex

Lalla Btissam Drissi, Houda Jehjouh, El Hassan Saidi

We study aspects of the refining and shifting properties of the 3d MacMahon function used in topological string theory and BKP hierarchy. We derive the explic…

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…

cond-mat.stat-mech2008★ 44 cited

1-d gravity in infinite point distributions

Andrea Gabrielli, Michael Joyce, Francois Sicard

The dynamics of infinite, asymptotically uniform, distributions of self-gravitating particles in one spatial dimension provides a simple toy model for the analogous three dimension…

hep-ph2008★ 13 cited

Scalar resonances in a unitary -wave model for

D. R. Boito, J. -P. Dedonder, B. El-Bennich +2

We propose a model for decays following experimental results which indicate that the two-pion interaction in the -wave is dominated by the scalar resonance…

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★ 9 cited

Measurement of MW+ - MW- at LHC

F. Fayette, M. W. Krasny, W. Placzek +1

This paper is the second of the series of papers proposing dedicated strategies for precision measurements of the Standard Model parameters at the LHC. The common feature of these…

hep-ex2008★ 13 cited

Measurement of the kT Distribution of Particles in Jets Produced in ppbar Collisions at s**(1/2)=1.96$-TeV

CDF Collaboration, T. Aaltonen

We present a measurement of the transverse momentum with respect to the jet axis () of particles in jets produced in collisions at TeV. Results are…

hep-ex2008★ 84 cited

Inclusive Search for Squark and Gluino Production in ppbar Collisions at sqrt{s} = 1.96 TeV

T. Aaltonen

We report on a search for inclusive production of squarks and gluinos in ppbar collisions at sqrt{s}=1.96 TeV, in events with large missing transverse energy and multiple jets of h…

hep-ex2008★ 171 cited

Search for the Z(4430)^- at BABAR

The BABAR Collaboration, B. Aubert

We report the results of a search for decay to or in $B^{-,0}\to \jpsiπ^- K^{0,+}$ and $B^{-,0}\to \psitwos π^- K^{0,+}$ decays. The data were colle…

astro-ph2008★ 638 cited

The energy spectrum of cosmic-ray electrons at TeV energies

H. E. S. S. Collaboration, :, F. Aharonian

The very large collection area of ground-based gamma-ray telescopes gives them a substantial advantage over balloon/satellite based instruments in the detection of very-high-energy…

astro-ph2008★ 44 cited

Energy ejection in the collapse of a cold spherical self-gravitating cloud

M. Joyce, B. Marcos, F. Sylos Labini

When an open system of classical point particles interacting by Newtonian gravity collapses and relaxes violently, an arbitrary amount of energy may in principle be carried away by…

hep-ex2008★ 13 cited

Top Quark Mass Measurement in the tt-bar All Hadronic Channel using a Matrix Element Technique in ppbar Collisions at sqrt s = 1.96 TeV

CDF Collaboration, T. Aaltonen

We present a measurement of the top quark mass in the all-hadronic channel (\tt \bb) using 943 pb of \ppbar collisions at $\sqrt {s}…

hep-ex2008★ 36 cited

Search for the lightest scalar top quark in events with two leptons in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. Abazov

We report results of a search for the pair production of the lightest supersymmetric partner of the top quark using 1 fb-1 of data collected by the D0 detector at a ppbar center-of…

hep-ex2008★ 25 cited

Measurement of W-Boson Helicity Fractions in Top-Quark Decays Using costheta*

T. Aaltonen

Fully reconstructed top-antitop-events are used to determine the fractions of right-handed and longitudinally polarized W bosons produced in top-quark decays. The helicity fraction…

hep-ex2008★ 14 cited

Search for neutral Higgs bosons at high tan(beta) in the b(h/H/A)->btautau channel

D0 Collaboration, V. Abazov

The first search in ppbar collisions at sqrt(s)=1.96 GeV for the production of neutral Higgs bosons in association with bottom quarks and decaying in two tau leptons is presented.…

hep-ex2008★ 61 cited

Measurement of the Single Top Quark Production Cross Section at CDF

CDF Collaboration, T. Aaltonen

We report a measurement of the single top quark production cross section in 2.2 ~fb-1 of p-pbar collision data collected by the Collider Detector at Fermilab at sqrt{s}=1.96 TeV. C…

astro-ph2008★ 113 cited

Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304

H. E. S. S. Collaboration, :, F. Aharonian

In the past few decades, several models have predicted an energy-dependence of the speed of light in the context of quantum gravity. For cosmological sources such as active galaxie…

astro-ph2008★ 112 cited

Discovery of gamma-ray emission from the shell-type supernova remnant RCW 86 with H.E.S.S

HESS Collaboration, F. Aharonian

The shell-type supernova remnant (SNR) RCW 86, possibly associated with the historical supernova SN 185, with its relatively large size (about 40' in diameter) and the presence of…

hep-ph2008★ 1 cited

Pion-Kaon interaction effects on CP violation in B -> K pi+ pi- decays

B. Loiseau, B. El-Bennich, A. Furman +3

We apply QCD factorization to the quasi two-body B ->(K pi) pi decays where the (K pi)-pair effective mass is limited to 1.8 GeV. Our strong interaction phases constrained by theor…

hep-ph2008★ 56 cited

The Scalar Meson f0(980) in Heavy-Meson Decays

B. El-Bennich, O. Leitner, J. -P. Dedonder +1

A phenomenological analysis of the scalar meson f0(980) is performed that relies on the quasi-two body decays D and Ds -> f0(980)P, with P=pi, K. The two-body branching ratios are…

astro-ph2008★ 248 cited

Constraints on WIMP Dark Matter from the High Energy PAMELA data

F. Donato, D. Maurin, P. Brun +2

A new calculation of the ratio in cosmic rays is compared to the recent PAMELA data. The good match up to 100 GeV allows to set constraints on exotic contributions from…