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19922026
Showing 2004 · hep-exShow all

68 papers · 2 filters

hep-ex2004★ 22 cited

Limit on the B0->rho0rho0 Branching Fraction and Implications for the CKM Angle alpha

The BABAR Collaboration, B. Aubert et al

We search for the decay B0 -> rho0 rho0 in a data sample of about 227 million Upsilon(4S)-> BBbar decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- coll…

hep-ex2004★ 44 cited

Measurement of Branching Fractions and Charge Asymmetries for Exclusive B Decays to Charmonium

B. Aubert, BABAR Collaboration

We report measurements of branching fractions and charge asymmetries of exclusive decays of neutral and charged B mesons into two-body final states containing a charmonium state an…

hep-ex2004★ 100 cited

Search for a Charged Partner of the X(3872) in the B Meson Decay B --> X- K, X- --> J/psi pi- pi0

B. Aubert, BaBar Collaboration

We search for a charged partner of the X(3872) in the decay B --> X- K, X- --> J/psi pi- pi0, using 234 million BBbar events collected at the Y(4S) resonance with the BaBar detecto…

hep-ex2004★ 42 cited

Branching Fractions and CP Asymmetries in B0 -> pi0pi0, B+ -> pi+pi0 and B+ -> K+pi0 Decays and Isospin Analysis of the B -> pipi System

The BABAR Collaboration, B. Aubert

Based on a sample of 227 million BBbar pairs collected by the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the branching fraction B(B0 -> pi0pi0) =…

hep-ex2004★ 6 cited

Measurement of Branching Fraction and Dalitz Distribution for B0->D(*)+/- K0 pi-/+ Decays

B. Aubert, BABAR Collaboration

We present measurements of the branching fractions for the three-body decays B0 -> D(*)-/+ K0 pi^+/-B0 -> D(*)-/+ K*+/- using a sample of approximate…

hep-ex2004★ 32 cited

Measurement of the doubly Cabibbo suppressed decay and a search for charm mixing

FOCUS Collaboration, J. M. Link

We present an analysis of the decay based on FOCUS data. From a sample of 234 signal events, we find a branching ratio of $\frac{Γ(D^0 \to K^+π^-)}{Γ(D^0 \to K^-π^…

hep-ex2004★ 43 cited

Measuring cal B(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_D^+

G. Bonvicini, CLEO Collaboration

In 60 inverse-pb of data taken on the psi(3770) resonance with the CLEO-c detector, we find 8 D+ -> mu+ nu decay candidates that are mostly signal, containing only 1 estimated back…

hep-ex2004★ 55 cited

Photon transitions in Upsilon(2S) and Upsilon(3S)

M. Artuso

We have studied the inclusive photon spectra in Upsilon(2S) and Υ(3S) decays using a large statistics data sample obtained with the CLEO III detector. We present the most precise m…

hep-ex2004★ 46 cited

A search for the decay

B. Aubert, BABAR Collaboration

We search for the rare flavor-changing neutral-current decay in a data sample of 82 fb collected with the {\sl BABAR} detector at the PEP-II B-factory.…

hep-ex2004★ 5 cited

Measurements of B meson decays to omega K* and omega rho

The BABAR Collaboration, B. Aubert

We describe searches for B meson decays to the charmless vector-vector final states omega K* and omega rho in 89 million B-Bbar pairs produced in e+e- annihilation at sqrt(s)=10.58…

hep-ex2004★ 16 cited

Measurement of the Ratio BR(B- --> D*0 K-)/BR(B- --> D*0 pi-) and of the CP Asymmetry of B- --> D*0(CP+) K- Decays

The BABAR Collaboration, B. Aubert

We study the decays B- --> D*0 pi- and B- --> D*0 K-, where the D*0 decays into D0 pi0, with the D0 reconstructed in the CP-even (CP+) eigenstates K- K+ and pi- pi+ and in the (non…

hep-ex2004★ 15 cited

A New Measurement of the Masses and Widths of the Sigma_c^*++ and Sigma_c^*0 Charmed Baryons

S. B. Athar

Using data recorded by the CLEO III detector at CESR, we have made measurements of some properties of the Sigma_c^{*++} and Sigma_c^{*0} charmed baryons. In particular: Gamma(Sigma…

hep-ex2004★ 21 cited

Analysis of the semileptonic decay

the FOCUS Collaboration, J. M. Link

Using data collected by the fixed target Fermilab experiment FOCUS, we present several first measurements for the semileptonic decay . Using a model that…

hep-ex2004★ 14 cited

Measurement of the branching ratio of the decay D^0 -> π^-μ^+νrelative to D^0 -> K^-μ^+ν

FOCUS Collaboration

We present a new measurement of the branching ratio of the Cabibbo suppressed decay D^0\to π^-μ^+νrelative to the Cabibbo favored decay D^0\to K^-μ^+νand an improved measurement of…

hep-ex2004★ 8 cited

A Study of D0 --> K0(S) K0(S) X Decay Channels

The FOCUS Collaboration

Using data from the FOCUS experiment (FNAL-E831), we report on the decay of mesons into final states containing more than one . We present evidence for two Cabibbo fav…

hep-ex2004★ 5 cited

Direct Measurements of A_b and A_c using Vertex/Kaon Charge Tags at SLD

SLD Collaboration, K. Abe

Exploiting the manipulation of the SLC electron-beam polarization, we present precise direct measurements of the parity violation parameters A_c and A_b in the Z boson - c quark an…

hep-ex2004★ 19 cited

Search for X(3872) in gamma gamma Fusion and ISR at CLEO

S. Dobbs, CLEO Collaboration

We report on a search for the recently reported X(3872) state using 15.1 fb^{-1} e+ e- data taken in the \sqrt{s} = 9.46-11.30 GeV region. Separate searches for the production of X…

hep-ex2004★ 59 cited

Measurements of the qsq dependence of the D0 to K mu nu and D0 to pi mu nu form factors

The FOCUS Collaboration

Using a large sample of D0 to K mu nu and pi mu nu decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of the q^2 dependence for the f…

hep-ex2004★ 34 cited

Measurement of the B0 -> K2*(1430)0 gamma and B+ -> K2*(1430)+ gamma branching fractions

B. Aubert

We have investigated the exclusive, radiative B meson decays to K2*(1430) in 89* 10^6 BBbar events with the BaBar detector at the PEP-II storage ring. We measure the branching frac…

hep-ex2004★ 26 cited

Measurement of the Muonic Branching Fractions of the Narrow Upsilon Resonances

G. S. Adam, CLEO Collaboration

The decay branching fractions of the three narrow Upsilon resonances to mu+ mu- have been measured by analyzing about 4.3 1/fb e+e- data collected with the CLEO III detector. The b…

hep-ex2004★ 48 cited

Photon Transitions in ψ(2S) Decays to χ_{cJ}(1P) and η_c(1S)

S. B. Athar

We have studied the inclusive photon spectrum in psi(2S) decays using the CLEO III detector. We present the most precise measurements of electric dipole (E1) photon transition rate…

hep-ex2004★ 104 cited

Improved Measurement of CP Asymmetries in B0 -> (ccbar)K0(*) Decays

B. Aubert, BABAR Collaboration

We present results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 227 million Upsilon(4S) -> BBbar deca…

hep-ex2004★ 9 cited

Measurement of the Branching Fractions for Inclusive and Decays to Flavor-tagged , and

B. Aubert, BABAR collaboration

We report on the inclusive branching fractions of and of mesons decaying to , , , , , , ${Λ_c^+…

hep-ex2004★ 2 cited

Measurement of Neutral B Decay Branching Fractions to Kspi+pi- Final States

B. Aubert, BABAR Collaboration

Branching fraction measurements using B-meson decays to Kspi+pi- are presented. These measurements were obtained by analyzing a data sample of 88.9 million Y(4S) --> BB decays coll…