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Showing 2009 · hep-exShow all

65 papers · 2 filters

hep-ex2009★ 84 cited

Determination of the strong coupling constant from the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

We determine the strong coupling constant alphas and its energy dependence from the pT dependence of the inclusive jet cross section in ppbar collisions at sqrt(s)=1.96 TeV. The st…

hep-ex2009★ 81 cited

A Search for B+ -> tau+ nu Recoiling Against B- -> D0 l- nu X

The BABAR Collaboration, B. Aubert

We present a search for the decay () in pairs recorded with the BABAR detector at the PEP-II B-Facto…

hep-ex2009★ 20 cited

Search for the Standard Model Higgs Boson in the ZH->vvbb Channel in 5.2 fb-1 of p-pbar Collisions at sqrt(s)=1.96 TeV

D0 Collaboration

A search is performed for the standard model Higgs boson in 5.2 fb-1 of p-pbar collisions at sqrt(s)=1.96 TeV, collected with the D0 detector at the Fermilab Tevatron Collider. The…

hep-ex2009★ 187 cited

Double parton interactions in photon+3 jet events in ppbar collisions sqrt{s}=1.96 TeV

D0 Collaboration

We have used a sample of photon+3 jets events collected by the D0 experiment with an integrated luminosity of about 1 fb^-1 to determine the fraction of events with double parton s…

hep-ex2009★ 85 cited

Transverse momentum dependence of J/psi polarization at midrapidity in p+p collisions at sqrt(s)=200 GeV

PHENIX Collaboration, A. Adare

We report the measurement of the transverse momentum dependence of inclusive J/psi polarization in p+p collisions at sqrt(s)=200 GeV performed by the PHENIX Experiment at RHIC. The…

hep-ex2009★ 19 cited

Search for a resonance decaying into WZ boson pairs in collisions

The D0 Collaboration, V. M. Abazov

We present the first search for an electrically charged resonance decaying to a WZ boson pair using 4.1 fb of integrated luminosity collected with the D0 detector…

hep-ex2009★ 36 cited

Measurement of the D* Meson Production Cross Section and F_2^{ccbar}, at High Q^2, in ep Scattering at HERA

The H1 Collaboration

The inclusive production of D*(2010) mesons in deep-inelastic ep scattering is measured in the kinematic region of photon virtuality 100 < Q^2 < 1000 GeV^2 and inelasticity 0.02 <…

hep-ex2009★ 147 cited

First proton-proton collisions at the LHC as observed with the ALICE detector: measurement of the charged particle pseudorapidity density at = 900 GeV

ALICE Collaboration

On 23rd November 2009, during the early commissioning of the CERN Large Hadron Collider (LHC), two counter-rotating proton bunches were circulated for the first time concurrently i…

hep-ex2009★ 7 cited

Observation of inclusive production in the decay of

The BABAR Collaboration, B. Aubert

We present a study of the inclusive production in the decay of using mesons collected with the BaBar detector at the …

hep-ex2009★ 8 cited

Double Helicity Dependence of Jet Properties from Dihadrons in Longitudinally Polarized p+p Collisions at sqrt(s) = 200 GeV

PHENIX Collaboration

It has been postulated that partonic orbital angular momentum can lead to a significant double-helicity dependence in the net transverse momentum of Drell-Yan dileptons produced in…

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★ 14 cited

Measurement of CP violation observables and parameters for the decays

The BaBar Collaboration, B. Aubert

We study the decay using a sample of 379 events collected with the BABAR detector at the PEP-II -factory. We perform a "GLW" an…

hep-ex2009★ 41 cited

Measurements of the Mass and Mass Difference of the and } at BaBar

The BaBar Collaboration, B. Aubert

We present the result from a precision measurement of the mass of the lepton, , based on of data recorded at the resonance with the BaBar detector. U…

hep-ex2009★ 21 cited

Measurement of branching fractions of B decays to K1(1270)pi and K1(1400)pi and determination of the CKM angle alpha from B0 --> a1(1260)+/- pi-/+

The BABAR Collaboration, B. Aubert

We report measurements of the branching fractions of neutral and charged B meson decays to final states containing a K_1(1270) or K_1(1400) meson and a charged pion. The data, coll…

hep-ex2009★ 287 cited

Precise measurement of the e+ e- to pi+ pi- (gamma) cross section with the Initial State Radiation method at BABAR

The BABAR Collaboration, B. Aubert

A precise measurement of the cross section of the process e+ e- to pi+ pi- (gamma) from threshold to an energy of 3 GeV is obtained with the initial state radiation (ISR) method us…

hep-ex2009★ 63 cited

A Search for Invisible Decays of the Upsilon(1S)

The BABAR Collaboration, B. Aubert

We search for invisible decays of the Upsilon(1S) meson using a sample of 91.4 x 10^{6} Upsilon(3S) mesons collected at the BaBar/PEP-II B-factory. We select events containing the…

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★ 48 cited

Measurement of D0-D0bar Mixing using the Ratio of Lifetimes for the Decays D0->K-pi+ and K+K-

The BABAR Collaboration, B. Aubert

We measure the rate of D0-D0bar mixing with the observable yCP=(tauKpi/tauKK)-1, where tauKK and tauKpi are respectively the mean lifetimes of CP-even D0->K+K- and CP-mixed D0->K-p…

hep-ex2009★ 41 cited

Measurement and interpretation of moments in inclusive semileptonic decays Bbar --> X_c l- nubar

The BABAR Collaboration, B. Aubert

We present results for the moments of observed spectra in inclusive semileptonic B-meson decays to charm hadrons Bbar --> X_c l- nubar. Moments of the hadronic-mass and the combine…

hep-ex2009★ 635 cited

Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma

The BABAR Collaboration, B. Aubert

Searches for lepton-flavor-violating decay of a tau lepton to a lighter mass lepton and a photon have been performed with the entire dataset of (963 +- 7) x 10^6 tau decays collect…

hep-ex2009★ 140 cited

Search for charged Higgs bosons in top quark decays

D0 Collaboration, V. Abazov

We present a search for charged Higgs bosons in top quark decays. We analyze the \eplus, \muplus, , , , \etau and \mutau final states from top quark pair production eve…

hep-ex2009★ 112 cited

Study of decays to in inclusive interactions

The BABAR Collaboration, B. Aubert

We observe the decays D^*_{s1}(2710)^+ \to D^*KD^*_{sJ}(2860)^+ \to D^*KD K$ final state. We also observe, in the…

hep-ex2009★ 8 cited

Search for B-meson decays to b1rho and b1K*

The BABAR Collaboration, B. Aubert

We present a search for decays of mesons to final states with a meson and a or meson. The search is based on a data sample consisting of 465 million $B\ke…

hep-ex2009★ 9 cited

Observation and Polarization Measurement of B0 --> a1(1260)+ a1(1260)- Decay

The BABAR Collaboration, B. Aubert

We present measurements of the branching fraction B and the longitudinal polarization fraction fL for B0 -> a1(1260)+ a1(1260)- decays, with a1(1260)+/- -> π- π+ π+/-. The data sam…