A. D’Oliveira

activity

19952002

most citedDalitz Plot Analysis of the Decay D^+ --> K^- pi^+ pi^+ and Indication of a Low-Mass Scalar K pi Resonance

242 citations · 940 across the 24 of their papers we have counts for

collaborators

24 papers

hep-ex2002★ 242 cited

Dalitz Plot Analysis of the Decay D^+ --> K^- pi^+ pi^+ and Indication of a Low-Mass Scalar K pi Resonance

E791 Collaboration

We study the Dalitz plot of the decay D^+ --> K^- pi^+ pi^+ with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known K…

hep-ex2001★ 1 cited

Study of the decay $D^{0} \to K^{-} K^{-} K^{+} π^{+}$

Fermilab E791 Collaboration

Using data from the E791 fixed-target hadroproduction experiment at Fermilab we have studied the Cabibbo-favored but phase-space suppressed decay, $D^{0} \to K^{-} K^{-} K^{+} π^{+}$ . We fin…

hep-ex2000★ 19 cited

Asymmetries in the production of lambda zero, cascade minus, and omega minus hyperons in 500 GeV/c pi minus-Nucleon Interactions

E. M. Aitala

Using data from Fermilab fixed-target experiment E791, we have measured particle-antiparticle production asymmetries for lambda zero, cascade minus, and omega minus hyperons in pi…

hep-ex2000★ 150 cited

Study of the $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decay and measurement of $f_{0}$ masses and widths

E791 Collaboration

From a sample of 848 $\pm$ 44 $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decays, we find $Γ (D_{s}^{+} \to π^{-} π^{+} π^{+}) /Γ (D_{s}^{+} \to ϕ π^{+}) = 0.245 \pm 0.02 8_{- 0.012}^{+ 0.019}$ . Using a Dalitz plot analy…

hep-ex2000★ 26 cited

Asymmetries in the Production of $Λ_{c}^{+}$ and $Λ_{c}^{-}$ Baryons in 500 GeV/c $π^{-}$ Nucleon Interactions

E791 Collaboration

We present a measurement of asymmetries in the production of $Λ_{c}^{+}$ and $Λ_{c}^{-}$ baryons in 500 GeV/c $π^{-}$ --nucleon interactions from the E791 experiment at Fermilab. The asymmetr…

hep-ex1999★ 66 cited

Measurements of Lifetimes and a Limit on the Lifetime Difference in the Neutral D-Meson System

The Fermilab E791 Collaboration

Using the large hadroproduced charm sample collected in experiment E791 at Fermilab, we report the first directly measured constraint on the decay-width difference Delta Gamma for…

hep-ex1999★ 1 cited

First study of the structure of e+e- -> b bbar g events and limits on the anomalous chromomagnetic moment of the b-quark

Kenji Abe et al

The structure of e+e- -> b bbar g events was studied using Z0 decays recorded in the SLD experiment at SLAC. Three-jet final states were selected and the CCD-based vertex detector…

hep-ex1998★ 17 cited

An Improved Test of the Flavor Independence of Strong Interactions

K. Abe et al

We present an improved comparison of the strong coupling of the gluon to light (q_l=u+d+s), c, and b quarks, determined from multijet rates in flavor-tagged samples of hadronic Z0…

hep-ex1997★ 42 cited

Search for the pentaquark via the P^0_{{c bar}s} --> phi,pi,p decay

E791 Collaboration, E. M. Aitala et al

We report results of the first search for the pentaquark P_{{c bar}s} which is predicted to be a doublet of states: P^0_{{c bar}s}=({c bar} s u u d) and P^-_{{c bar}s}=({c bar} s d…

hep-ex1997★ 37 cited

Asymmetries Between the Production of Ds- and Ds+ Mesons from 500 GeV/c pi- Nucleon Interactions as Functions of x_F and square of p_t

E791 Collaboration

This paper presents measurements of the production of Ds- mesons relative to Ds+ mesons as functions of x_F and square of p_t for a sample of 2445 Ds decays to phi pi. The Ds meson…

hep-ex1997★ 56 cited

A Measurement of Rb using a Vertex Mass Tag

SLD Collaboration

We report a new measurement of Rb = Gamma(Z0->b-bbar) / Gamma(Z0->hadrons) using a double tag technique, where the b hemisphere selection is based on the reconstructed mass of the…

hep-ex1997★ 9 cited

Measurement of the B Hadron Energy Distribution in Z0 Decays

K. Abe et al, :, The SLD Collaboration

We have measured the B hadron energy distribution in Z0 decays using a sample of semi-leptonic B decays recorded in the SLD experiment at SLAC. The energy of each tagged B hadron w…

hep-ex1997★ 20 cited

First Measurement of Leptonic Coupling Asymmetries with Polarized Z bosons

The SLD Collaboration, K. Abe, T. Akagi

We present direct measurements of the $Z^{0}$ -lepton coupling asymmetry parameters, $A_{e}$ , $A_{μ}$ , and $A_{τ}$ , based on a data sample of 12,063 leptonic $Z^{0}$ decays collected by the S…

hep-ex1997★ 14 cited

Measurement of Leading Particle Effects in Decays of Z0 Bosons into Light Flavors

The SLD Collaboration, K. Abe et al

We present evidence for leading particle production in hadronic decays of the Z0 boson to light-flavor jets. A polarized electron beam was used to tag quark and antiquark jets, and…

hep-ex1997★ 17 cited

Measurement of the Tau Neutrino Helicity and the Michel Parameters in Polarized e+e- Collisions

SLD Collaboration, K. Abe etal

We present a new measurement of the tau neutrino helicity, hnu and the tau Michel parameters rho, eta, xi and the product delta xi. The analysis exploits the highly polarized SLC e…

hep-ex1996★ 47 cited

An Improved Measurement of the Left-Right Z0 Cross Section Asymmetry

SLD Collaboration, K. Abe, I. Abt et al

We present a new measurement of the left-right cross section asymmetry (ALR) for Z boson production by e+e- collisions. The measurement was performed at a center-of-mass energy of…

hep-ex1996★ 18 cited

First Measurement of the Left-Right Charge Asymmetry in Hadronic Z Boson Decays and a New Determination of sin^2(theta_eff)

SLD Collaboration, K. Abe, I. Abt

We present the first measurement of the left-right charge asymmetry A_Q^{obs} in hadronic Z boson decays. This was performed at E_cm = 91.27 GeV with the SLD at the SLAC Linear Col…

hep-ex1996★ 26 cited

A study of the orientation and energy partition of three-jet events in hadronic Z0 decays

K. Abe

We have measured the distributions of the jet energies in e+e- --> qq^bar g events, and of the three orientation angles of the event plane, using hadronic $Z^{0}$ decays collected in…

hep-ex1996★ 23 cited

Measurement of the Charged Multiplicities in b, c and Light Quark Events from Z0 Decays

K. Abe

Average charged multiplicities have been measured separately in $b$ , $c$ and light quark ( $u, d, s$ ) events from $Z^{0}$ decays measured in the SLD experiment. Impact parameters of cha…

hep-ex1996★ 46 cited

A search for D0-D0bar mixing and doubly-Cabibbo-suppressed decays of the D0 in hadronic final states

The Fermilab E791 Collaboration

We present results of a search for D0-D0bar mixing and doubly-Cabibbo-suppressed decays of the D0 in Fermilab experiment E791, a fixed-target charm hadroproduction experiment. We l…

hep-ex1996★ 4 cited

First Study of Rapidity Gaps in e+e- Annihilation

SLD Collaboration

We present the first study of rapidity gaps in e+e- annihilations using Z0 decays collected by the SLD experiment at SLAC. Our measured rapidity gap spectra fall exponentially with…

hep-ex1996★ 36 cited

Factorial and Cumulant Moments in $e^{+} e^{-} \to$ Hadrons at the Z $^{0}$ Resonance

SLD Collaboration

We present the first experimental study of the ratio of cumulant to factorial moments of the charged-particle multiplicity distribution in high-energy particle interactions, using…

hep-ex1995★ 12 cited

Measurement of the Average $B$ -Hadron Lifetime in $Z^{0}$ Decays

The SLD Collaboration

We report a measurement of the average $B$ -hadron lifetime using data collected with the SLD detector at the SLC in 1993. An inclusive analysis selected three-dimensional vertices…

hep-ex1995★ 11 cited

Measurement of the Tau Lifetime at SLD

The SLD Collaboration

A measurement of the lifetime of the tau lepton has been made using a sample of 1671 $Z^{0} \to τ^{+} τ^{-}$ decays collected by the SLD detector at SLC. The measurement benefits fr…

Dalitz Plot Analysis of the Decay D^+ --> K^- pi^+ pi^+ and Indication of a Low-Mass Scalar K pi Resonance

Study of the decay D0→K−K−K+π+

Asymmetries in the production of lambda zero, cascade minus, and omega minus hyperons in 500 GeV/c pi minus-Nucleon Interactions

Study of the Ds+​→π−π+π+ decay and measurement of f0​ masses and widths

Asymmetries in the Production of Λc+​ and Λc−​ Baryons in 500 GeV/c π− Nucleon Interactions

Measurements of Lifetimes and a Limit on the Lifetime Difference in the Neutral D-Meson System

First study of the structure of e+e- -> b bbar g events and limits on the anomalous chromomagnetic moment of the b-quark

An Improved Test of the Flavor Independence of Strong Interactions

Search for the pentaquark via the P^0_{{c bar}s} --> phi,pi,p decay

Asymmetries Between the Production of Ds- and Ds+ Mesons from 500 GeV/c pi- Nucleon Interactions as Functions of x_F and square of p_t

A Measurement of Rb using a Vertex Mass Tag

Measurement of the B Hadron Energy Distribution in Z0 Decays

First Measurement of Leptonic Coupling Asymmetries with Polarized Z bosons

Measurement of Leading Particle Effects in Decays of Z0 Bosons into Light Flavors

Measurement of the Tau Neutrino Helicity and the Michel Parameters in Polarized e+e- Collisions

An Improved Measurement of the Left-Right Z0 Cross Section Asymmetry

First Measurement of the Left-Right Charge Asymmetry in Hadronic Z Boson Decays and a New Determination of sin^2(theta_eff)

A study of the orientation and energy partition of three-jet events in hadronic Z0 decays

Measurement of the Charged Multiplicities in b, c and Light Quark Events from Z0 Decays

A search for D0-D0bar mixing and doubly-Cabibbo-suppressed decays of the D0 in hadronic final states

First Study of Rapidity Gaps in e+e- Annihilation

Factorial and Cumulant Moments in e+e−→ Hadrons at the Z0 Resonance

Measurement of the Average B-Hadron Lifetime in Z0 Decays

Measurement of the Tau Lifetime at SLD

Study of the decay $D^{0} \to K^{-} K^{-} K^{+} π^{+}$

Study of the $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decay and measurement of $f_{0}$ masses and widths

Asymmetries in the Production of $Λ_{c}^{+}$ and $Λ_{c}^{-}$ Baryons in 500 GeV/c $π^{-}$ Nucleon Interactions

Factorial and Cumulant Moments in $e^{+} e^{-} \to$ Hadrons at the Z $^{0}$ Resonance

Measurement of the Average $B$ -Hadron Lifetime in $Z^{0}$ Decays