Showing 2011 · hep-exShow all

84 papers · 2 filters

hep-ex2011★ 26 cited

Measurement of ZZ production in leptonic final states at {\surd}s of 1.96 TeV at CDF

T. Aaltonen, B. Alvarez Gonzalez, S. Amerio +512

In this paper we present a precise measurement of the total ZZ production cross section in pp collisions at {\surd}s= 1.96 TeV, using data collected with the CDF II detector corres…

hep-ex2011★ 40 cited

First Measurement of the Form Factors in the Decays D0 to rho- e+ nu_e and D+ to rho0 e+ nu_e

CLEO Collaboration, S. Dobbs, Z. Metreveli +78

Using the entire CLEO-c psi(3770) to DDbar event sample, corresponding to an integrated luminosity of 818 pb^-1 and approximately 5.4 x 10^6 DDbar events, we measure the form facto…

hep-ex2011★ 47 cited

Measurement of the CP-Violating Phase beta_s in B0s -> J/Psi Phi Decays with the CDF II Detector

CDF Collaboration, T. Aaltonen

We present a measurement of the \CP-violating parameter \betas using approximately 6500 $\BsJpsiPhi$ decays reconstructed with the CDF\,II detector in a sample of collisi…

hep-ex2011★ 5 cited

Search for new phenomena in events with two bosons and missing transverse momentum in collisions at TeV

T. Aaltonen, B. Alvarez Gonzalez, S. Amerio +512

We present a search for new phenomena in events with two reconstructed bosons and large missing transverse momentum, sensitive to processes $p\bar{p}\rightarrow X_2X_2 \rightar…

hep-ex2011★ 50 cited

Measurements of Angular Distributions of Muons From Upsilon Meson Decays in p p-bar Collisions at sqrt(s)=1.96 TeV

T. Aaltonen, B. Álvarez Gonzálezz, S. Amerio +471

The angular distributions of muons from Upsilon(1S,2S,3S) to mu+mu- decays are measured using data from proton anti-proton collisions at sqrt(s)=1.96 TeV corresponding to an integr…

hep-ex2011★ 34 cited

Observation of Exclusive Gamma Gamma Production in p pbar Collisions at sqrt{s}=1.96 TeV

CDF Collaboration, T. Aaltonen, M. G. Albrow +473

We have observed exclusive γγproduction in proton-antiproton collisions at \sqrt{s}=1.96 TeV, using data from 1.11 \pm 0.07 fb^{-1} integrated luminosity taken by the Run II Collid…

hep-ex2011★ 98 cited

Search for signatures of extra dimensions in the diphoton mass spectrum at the Large Hadron Collider

CMS Collaboration

A search for signatures of extra dimensions in the diphoton invariant-mass spectrum has been performed with the CMS detector at the LHC. No excess of events above the standard mode…

hep-ex2011★ 1 cited

Searches for New Physics at the Tevatron and LHC

Peter Wittich

This is an auspicious moment in experimental particle physics -there are large data samples at the Tevatron and a new energy regime being explored at the Large Hadron Collider with…

hep-ex2011★ 124 cited

J/psi and psi(2S) production in pp collisions at sqrt(s) = 7 TeV

CMS Collaboration

A measurement of the J/psi and psi(2S) production cross sections in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC is presented. The data sample corresponds to a…

hep-ex2011★ 81 cited

Exclusive photon-photon production of muon pairs in proton-proton collisions at sqrt(s) = 7 TeV

CMS Collaboration

A measurement of the exclusive two-photon production of muon pairs in proton-proton collisions at sqrt(s)= 7 TeV, pp to p mu^+ mu^- p, is reported using data corresponding to an in…

hep-ex2011★ 43 cited

Evidence for the charmless annihilation decay mode

CDF Collaboration

We search for annihilation decay modes of neutral mesons into pairs of charmless charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data samp…

hep-ex2011★ 42 cited

Measurement of the Production Cross Section for Pairs of Isolated Photons in pp collisions at sqrt(s) = 7 TeV

CMS Collaboration

The integrated and differential cross sections for the production of pairs of isolated photons is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV with the…

hep-ex2011★ 182 cited

Measurement of the Rapidity and Transverse Momentum Distributions of Z Bosons in pp Collisions at sqrt(s)=7 TeV

CMS Collaboration

Measurements of the normalized rapidity (y) and transverse momentum (qT) distributions of Drell-Yan muon and electron pairs in the Z-boson mass region (60<M(ll)<120 GeV) are report…

hep-ex2011★ 95 cited

Jet Production Rates in Association with W and Z Bosons in pp Collisions at sqrt(s) = 7 TeV

CMS Collaboration

Measurements of jet production rates in association with W and Z bosons for jet transverse momenta above 30 GeV are reported, using a sample of proton-proton collision events recor…

hep-ex2011★ 37 cited

Measurement of energy flow at large pseudorapidities in pp collisions at sqrt(s) = 0.9 and 7 TeV

CMS Collaboration

The energy flow, dE/d(eta), is studied at large pseudorapidities in proton-proton collisions at the LHC, for centre-of-mass energies of 0.9 and 7 TeV. The measurements are made in…

hep-ex2011★ 14 cited

Forward Energy Flow, Central Charged-Particle Multiplicities, and Pseudorapidity Gaps in W and Z Boson Events from pp Collisions at 7 TeV

CMS Collaboration

A study of forward energy flow and central charged-particle multiplicity in events with W and Z bosons decaying into leptons is presented. The analysis uses a sample of 7 TeV pp co…

hep-ex2011★ 84 cited

Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC

the CMS Collaboration

A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant m…

hep-ex2011★ 72 cited

Search for a Vector-like Quark with Charge 2/3 in t + Z Events from pp Collisions at sqrt(s) = 7 TeV

CMS Collaboration

A search for pair-produced heavy vector-like charge-2/3 quarks, T, in pp collisions at a center-of-mass energy of 7 TeV, is performed with the CMS detector at the LHC. Events consi…

hep-ex2011★ 284 cited

Search for Supersymmetry at the LHC in Events with Jets and Missing Transverse Energy

CMS Collaboration

A search for events with jets and missing transverse energy is performed in a data sample of pp collisions collected at sqrt(s) = 7 TeV by the CMS experiment at the LHC. The analyz…

hep-ex2011★ 26 cited

Search for heavy metastable particles decaying to jet pairs in pp collisions at sqrt{s} = 1.96 TeV

CDF Collaboration

A search is performed for heavy metastable particles that decay into jet pairs with a macroscopic lifetime (ctau ~ 1 cm) in ppbar collisions at sqrt{s} = 1.96 TeV using data from t…

hep-ex2011★ 81 cited

Measurement of the t t-bar Production Cross Section in pp Collisions at 7 TeV in Lepton + Jets Events Using b-quark Jet Identification

CMS Collaboration

A new measurement of the inclusive production cross section for pp to t t-bar is performed at a center-of-mass energy of 7 TeV using data collected by the CMS experiment at the LHC…

hep-ex2011★ 99 cited

Measurement of the Differential Cross Section for Isolated Prompt Photon Production in pp Collisions at 7 TeV

CMS Collaboration

A measurement of the differential cross section for the inclusive production of isolated prompt photons in proton-proton collisions at a centre-of-mass energy of 7 TeV is presented…

hep-ex2011★ 54 cited

Measurement of the Drell-Yan Cross Section in pp Collisions at sqrt(s) = 7 TeV

CMS Collaboration

The Drell-Yan differential cross section is measured in pp collisions at sqrt(s) = 7 TeV, from a data sample collected with the CMS detector at the LHC, corresponding to an integra…

hep-ex2011★ 13 cited

An artificial neural network based jet identification algorithm at the CDF Experiment

J. Freeman, W. Ketchum, J. D. Lewis +4

We present the development and validation of a new multivariate jet identification algorithm (" tagger") used at the CDF experiment at the Fermilab Tevatron. At collider exp…