Showing 2003 · hep-exShow all

49 papers · 2 filters

hep-ex2003★ 14 cited

Measurements of Branching Fractions and CP-Violating Asymmetries in B Meson Decays to Charmless Two-Body States Containing a K0

B. Aubert, BABAR Collaboration

We present measurements of branching fractions and \CP-violating asymmetries in decays of mesons to two-body final states containing a \Kz. The results are based on a data samp…

hep-ex2003★ 4 cited

Measurement of the Branching Fraction for B- --> D0 K*-

B. Aubert, BABAR Collaboration

We present a measurement of the branching fraction for the decay B- --> D0 K*- using a sample of approximately 86 million BBbar pairs collected by the BaBar detector from e+e- coll…

hep-ex2003★ 6 cited

Status of the PICASSO Project

The PICASSO Collaboration, M. Barnabe-Heider, E. Behnke +19

The Picasso project is a dark matter search experiment based on the superheated droplet technique. Preliminary runs performed at the Picasso Lab in Montreal have showed the suitabi…

hep-ex2003★ 23 cited

W Boson Polarisation at LEP2

The OPAL collaboration, G. Abbiendi

Elements of the spin density matrix for W bosons in e+e- -> W+W- -> qqln events are measured from data recorded by the OPAL detector at LEP. This information is used calculate pola…

hep-ex2003★ 6 cited

Measurement of the partial widths of the Z into up- and down-type quarks

The OPAL collaboration, G. Abbiendi

Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z -> qbarq gamma decays were selected by tagging hadronic final states with isolated photon candidates in the electromag…

hep-ex2003★ 20 cited

Flavour independent search for Higgs bosons decaying into hadronic final states in e+e- collisions

The OPAL collaboration, G. Abbiendi

A search for the Higgsstrahlung process e+e- -> hZ is described, where the neutral Higgs boson h is assumed to decay into hadronic final states. In order to be sensitive to a broad…

hep-ex2003★ 25 cited

Measurement of Branching Fractions and Charge Asymmetries in B+ --> rho+pi0 and B+ -->rho0pi+ Decays, and Search for B0 --> rho0pi0

B. Aubert

We present measurements of branching fractions and charge asymmetries in -meson decays to , and . The data sample comprises $Υ(4S)…

hep-ex2003★ 96 cited

Measurements of the mass and width of the eta_c meson and of an eta_c(2S) candidate

B. Aubert, BABAR Collaboration

The mass and total width of the eta_c meson have been measured in two-photon interactions at the SLAC asymmetric B-Factory with the BABAR detector. With a sample of approximately 2…

hep-ex2003★ 17 cited

Measurement of the branching fractions and CP-asymmetry of B^- -> D^0_(CP) K^- decays with the BaBar detector

B. Aubert, BABAR Collaboration

We present a study of B- -> D^0_CP K^- decays, where D^0_CP is reconstructed in CP-even channels, based on a sample of 88.8 million Upsilon(4S)->BBbar decays collected with the BaB…

hep-ex2003★ 31 cited

Observation of the Decay B0 => rho+ rho- and Measurement of the Branching Fraction and Polarization

The BABAR Collaboration, B. Aubert

We have observed the rare decay B0 => rho+ rho- in a sample of 89 million BB pairs recorded with the BABAR detector. The number of observed events is 88 +23-21 +-9, with a signific…

hep-ex2003★ 19 cited

Observation of $B^0\raωK^0$, $B^+\raηπ^+$, and $B^+\raηK^+$ and Study of Related Decays

The BABAR Collaboration, B. Aubert

We present measurements of branching fractions and charge asymmetries for seven B-meson decays with an eta, eta' or omega meson in the final state. The data sample corresponds to 8…

hep-ex2003★ 1 cited

Measurement of the Average Multiplicity in Meson Decay

B. Aubert, BABAR Collaboration

We present a measurement of the average multiplicity of mesons in , and meson decays. Using of data taken at…

hep-ex2003★ 33 cited

Limits on the Decay-Rate Difference of Neutral B Mesons and on CP, T, and CPT Violation in B0-B0bar Oscillations

B. Aubert

Using events in which one of two neutral B mesons from the decay of an Y(4S) meson is fully reconstructed, we determine parameters governing decay (ΔΓ_d/Γ_d), CP and T violation (|…

hep-ex2003★ 18 cited

Experimental studies of unbiased gluon jets from e+e- annihilations using the jet boost algorithm

The OPAL collaboration, G. Abbiendi

We present the first experimental results based on the jet boost algorithm, a technique to select unbiased samples of gluon jets in e+e- annihilations, i.e. gluon jets free of bias…

hep-ex2003★ 15 cited

Measurement of Time-Dependent CP Asymmetries and Constraints on sin(2beta+gamma) with Partial Reconstruction of B0 -> D*-+ pi+- Decays

The BABAR Collaboration, B. Aubert

We present a measurement of time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D*-+ pi+-, using approximately 82 million B B bar events recor…

hep-ex2003★ 25 cited

Measurement of Branching Fractions of Color-Suppressed Decays of the B0bar Meson to D(*)0 pi0, D(*)0 eta, D(*)0 omega, and D0 eta_prime

B. Aubert

Using a sample of 88.8 10**6 BBbar events collected with the BaBar detector at the PEP-II storage rings at the Stanford Linear Accelerator Center, we measure the branching fraction…

hep-ex2003★ 18 cited

Measurement of the Branching Fraction for B+- --> chi_c0 K+-

B. Aubert

We present a measurement of the branching fraction of the decay B+- --> chi_c0 K+- from a sample of 89 million BB pairs collected by the BaBar detector at the PEP-II asymmetric-ene…

hep-ex2003★ 26 cited

A Study of W+W-gamma Events at LEP

The OPAL collaboration, G. Abbiendi

A study of W+W- events accomanied by hard photon radiation produced in e+e- collisions at LEP is presented. Events consistent with being two on-shell W bosons and an isolated photo…

hep-ex2003★ 17 cited

Measurements of branching fractions in B -> phi K and B -> phi pi and search for direct CP violation in B+/- -> phi K+/-

The BABAR Collaboration, B. Aubert

We present measurements of branching fractions in the b -> s s-bar s penguin-dominated decays B+ --> phi K+ and B0 --> phi K0 in a sample of approximately 89 million BBbar pairs co…

hep-ex2003★ 13 cited

Measurement of the Branching Fraction and Polarization for the Decay B- to D*0 K*-

B. Aubert

We present a study of the decay B- -> D*0 K*- based on a sample of 86 million Upsilon(4S) -> BBbar decays collected between 1999 and 2002 with the BaBar detector at the PEP-II asym…

hep-ex2003★ 44 cited

Search for the Single Production of Doubly-Charged Higgs Bosons and Constraints on their Couplings from Bhabha Scattering

The OPAL collaboration, G. Abbiendi

A search for single production of doubly-charged Higgs bosons has been performed using 600.7 pb^-1 of e+e- collision data with sqrt(s)=189--209GeV collected by the OPAL detector at…

hep-ex2003★ 15 cited

Measurement of Heavy Quark Forward-Backward Asymmetries and Average B Mixing Using Leptons in Hadronic Z Decays

The OPAL collaboration, G. Abbiendi

Hadronic Z0 decays with identified electrons or muons have been used to measure the forward-backward asymmetries of e^+e^- --> Z0 --> bbbar and e^+e^- --> Z0 --> ccbar events. The…

hep-ex2003★ 72 cited

Evidence for the Rare Decay B -> K*ll and Measurement of the B -> Kll Branching Fraction

B. Aubert

We present evidence for the flavor-changing neutral current decay and a measurement of the branching fraction for the related process , w…

hep-ex2003★ 34 cited

Measurement of Branching Fractions for B0 ->K*2(1430)0 gamma and B+ -> K*2(1430)+ gamma

The BABAR Collaboration, B. Aubert

We have investigated the exclusive, radiative B-meson decay to K_2^*(1430) in 88.5 * 10^6 BBbar events. We present a preliminary measurement of the branching fractions BR(B->K^*_2(…