Showing 2009 · hep-exShow all

34 papers · 2 filters

hep-ex2009★ 83 cited

Search for Fermion-Pair Decays $Q\Qbar \to (\t\Wmp)(\tbar\Wpm)$ in Same-Charge Dilepton Events

The CDF Collaboration

We report the most restrictive direct limits on masses of fourth-generation down-type quarks , and quark-like composite fermions ( or ), decaying promptly t…

hep-ex2009★ 35 cited

A Measurement of Coherent Neutral Pion Production in Neutrino Neutral Current Interactions in NOMAD

C. T. Kullenberg, S. R. Mishra

We present a study of exclusive neutral pion production in neutrino-nucleus Neutral Current interactions using data from the NOMAD experiment at the CERN SPS. The data correspond t…

hep-ex2009★ 23 cited

Search for New Color-Octet Vector Particle Decaying to ttbar in ppbar Collisions at TeV

The CDF Collaboration, T. Aaltonen

We present the result of a search for a massive color-octet vector particle, (e.g. a massive gluon) decaying to a pair of top quarks in proton-antiproton collisions with a center-o…

hep-ex2009★ 95 cited

Measurement of the W boson mass

The D0 Collaboration, V. Abazov

We present a measurement of the W boson mass in W -> ev decays using 1 fb^-1 of data collected with the D0 detector during Run II of the Fermilab Tevatron collider. With a sample o…

hep-ex2009★ 15 cited

A Search for the Higgs Boson Produced in Association with Using the Matrix Element Method at CDF II

The CDF Collaboration, T. Aaltonen

We present a search for associated production of the standard model (SM) Higgs boson and a boson where the boson decays to two leptons and the Higgs decays to a pair of …

hep-ex2009★ 3 cited

Correlations between Polarisation States of W Particles in the Reaction e-e+ -> W-W+ at LEP2 Energies 189-209 GeV

The DELPHI Collaboration, J. Abdallah

In a study of the reaction e-e+ -> W-W+ with the DELPHI detector, the probabilities of the two W particles occurring in the joint polarisation states transverse-transverse (TT), lo…

hep-ex2009★ 49 cited

Measurement of of Drell-Yan pairs in the Mass Region from Collisions at TeV

The CDF Collaboration, T. Aaltonen

We report on a CDF measurement of the total cross section and rapidity distribution, , for events in the boson mass region ($66<M_{ee…

hep-ex2009★ 52 cited

Search for resonant pair production of neutral long-lived particles decaying to bbbar in ppbar collisions at sqrt(s)=1.96 TeV

The D0 Collaboration, V. Abazov

We report on a first search for resonant pair production of neutral long-lived particles (NLLP) which each decay to a bbbar pair, using 3.6 fb^-1 of data recorded with the D0 detec…

hep-ex2009★ 9 cited

Searching the Inclusive Lepton + Photon + Missing ET + b-quark Signature for Radiative Top Quark Decay and Non-Standard-Model Processes

CDF Collaboration, T. Aaltonen

In a search for new phenomena in a signature suppressed in the standard model of elementary particles (SM), we compare the inclusive production of events containing a lepton, a pho…

hep-ex2009★ 39 cited

Search for a Higgs Boson Produced in Association with a W Boson in pbar-p Collisions at sqrt{s} = 1.96 TeV

CDF Collaboration, T. Aaltonen

We present a search for a standard model Higgs boson produced in association with a W boson using 2.7 1/fb of integrated luminosity of pbar-p collision data taken at sqrt{s} = 1.96…

hep-ex2009★ 1 cited

Inclusive single-particle production in two-photon collisions at LEP II with the DELPHI detector

The DELPHI Collaboration, J. Abdallah

A study of the inclusive charged hadron production in two-photon collisions is described. The data were collected with the DELPHI detector at LEP II. Results on the inclusive singl…

hep-ex2009★ 31 cited

First Observation of Vector Boson Pairs in a Hadronic Final State at the Tevatron Collider

CDF Collaboration, T. Aaltonen

We present the first observation in hadronic collisions of the electroweak production of vector boson pairs (VV, V=W,Z) where one boson decays to a dijet final state . The data cor…

hep-ex2009★ 10 cited

Search for Standard Model Higgs Boson Production in Association with a W Boson using a Neural Network

CDF Collaboration, T. Aaltonen

We present a search for standard model Higgs boson production in association with a W boson in proton-antiproton collisions at a center of mass energy of 1.96 TeV. The search emplo…

hep-ex2009★ 134 cited

First Measurement of the $\lowercase{\ttbar}$ Differential Cross Section $\lowercase{dσ/d}M_{\lowercase{t\overline{t}}}$ in $\lowercase{\ppbar}$ Collisions at $\sqrt{\lowercase{s}}=1.96$ TeV

T. Aaltonen

We present a measurement of the $\ttbar$ differential cross section with respect to the $\ttbar$ invariant mass, dSigma/dMttbar, in $\ppbar$ collisions at TeV using…

hep-ex2009★ 6 cited

Search for narrow resonances lighter than mesons

The CDF collaboration, T. Aaltonen

We report a search for narrow resonances, produced in collisions at TeV, that decay into muon pairs with invariant mass between 6.3 and 9.0 GeV/c^2. The…

hep-ex2009★ 2 cited

Search for WW and WZ production in lepton plus jets final state at CDF

The CDF Collaboration, T. Aaltonen

We present a search for WW and WZ production in final states that contain a charged lepton (electron or muon) and at least two jets, produced in sqrt(s) = 1.96 TeV ppbar collisions…

hep-ex2009★ 15 cited

A Measurement of the t-tbar Cross Section in p-pbar Collisions at sqrt(s) = 1.96 TeV using Dilepton Events with a Lepton plus Track Selection

The CDF Collaboration, T. Aaltonen

This paper reports a measurement of the cross section for the pair production of top quarks in ppbar collisions at sqrt(s) = 1.96 TeV at the Fermilab Tevatron. The data was collect…

hep-ex2009★ 18 cited

Search for the standard model Higgs boson in tau final states

D0 Collaboration, V. Abazov

We present a search for the standard model Higgs boson using hadronically decaying tau leptons, in 1 inverse femtobarn of data collected with the D0 detector at the Fermilab Tevatr…

hep-ex2009★ 322 cited

Evidence for a Narrow Near-Threshold Structure in the Mass Spectrum in Decays

The CDF Collaboration, T. Aaltonen

Evidence is reported for a narrow structure near the threshold in exclusive decays produced in collisions at $\sqrt{s}=1.96 \TeV$. A signal of…

hep-ex2009★ 72 cited

Search for exclusive Z boson production and observation of high mass ppbar->gammagamma->p+ll+pbar events in ppbar collisions at sqrt(s) = 1.96 TeV

CDF Collaboration, T. Aaltonen

We present a search for exclusive Z boson production in proton-antiproton collisions at sqrt(s) = 1.96 TeV, using the CDF II detector at Fermilab. We observe no exclusive Z->ll can…

hep-ex2009★ 64 cited

Search for the Production of Narrow tb Resonances in 1.9 fb-1 of ppbar Collisions at sqrt(s) = 1.96 TeV

CDF Collaboration, T. Aaltonen

We present new limits on resonant tb production in proton-antiproton collisions at 1.96 TeV, using 1.9 fb^-1 of data recorded with the CDF II detector at the Fermilab Tevatron. We…

hep-ex2009★ 173 cited

Observation of exclusive charmonium production and gamma+gamma to mu+mu- in p+pbar collisions at sqrt{s} = 1.96 TeV

CDF Collaboration, T. Aaltonen

We have observed the reactions p+pbar --> p+X+pbar, with X being a centrally produced J/psi, psi(2S) or chi_c0, and gamma+gamma --> mu+mu-, in proton- antiproton collisions at sqrt…

hep-ex2009★ 76 cited

Search for Long-Lived Massive Charged Particles in 1.96 TeV $\bar{p}p}$ Collisions

CDF Collaboration, T. Aaltonen

We performed a signature-based search for long-lived charged massive particles (CHAMPs) produced in 1.0 of collisions at TeV, collected wi…

hep-ex2009★ 2 cited

Di-jet production in gamma-gamma collisions at LEP2

The DELPHI Collaboration, J. Abdallah

The production of two high-p_T jets in the interactions of quasi-real photons in e+e- collisions at sqrt{s_ee} from 189 GeV to 209 GeV is studied with data corresponding to an inte…