output
19922026
Showing 2008 · hep-exShow all

42 papers · 2 filters

hep-ex2008★ 28 cited

Measurement of the branching ratio and search for a CP violating asymmetry in the eta -> pi+pi-e+e-(gamma) decay at KLOE

KLOE Collaboration, F. Ambrosino, A. Antonelli +57

We have studied the eta->pi+pi-e+e-(gamma) decay using about 1.7 fb^-1 collected by the KLOE experiment at the DAFNE phi-factory. This corresponds to about 72 millions eta mesons p…

hep-ex2008★ 171 cited

Search for the Z(4430)^- at BABAR

The BABAR Collaboration, B. Aubert

We report the results of a search for decay to or in $B^{-,0}\to \jpsiπ^- K^{0,+}$ and $B^{-,0}\to \psitwos π^- K^{0,+}$ decays. The data were colle…

hep-ex2008★ 18 cited

Search for the K_S -> e+e- decay with the KLOE detector

The KLOE Collaboration, F. Ambrosino, A. Antonelli +63

We present the result of a direct search for the decay K_S -> e+e-, obtained with a sample of e+e- -> phi -> K_S K_L events produced at DAFNE, the Frascati phi-factory, for an inte…

hep-ex2008★ 1 cited

Vub extraction using the Analytic Coupling model

U. Aglietti, F. Di Lodovico, G. Ferrera +1

We summarize the main characteristics and recent results on B->Xulnu decays of a model based on soft-gluon resummation and an analytic time-like QCD coupling.

hep-ex2008★ 80 cited

A Search for Recoiling Against

The BABAR Collaboration, B. Aubert

We present a search for the decay $\B^+ \to \ell^+ ν_{\ell} (\ell = τ, μ, \mathrm{or} e)$ in decays recorded with the Babar detector at the…

hep-ex2008★ 185 cited

Measurement of and the dipion contribution to the muon anomaly with the KLOE detector

KLOE Collaboration

We have measured the cross section at DANE, the Frascati ϕ-factory, using events with initial state radiation photons emitted at small angle and inclusi…

hep-ex2008★ 41 cited

Measurement of time dependent CP asymmetry parameters in B0 meson decays to omega K0S, eta'K0, and pi0K0S

The BABAR Collaboration, B. Aubert

We present measurements of the time-dependent CP-violation parameters S and C in the decays omega K0S, eta'K0, reconstructed as eta'K0S and eta'K0L, and pi0K0S. The data sample cor…

hep-ex2008★ 70 cited

Measurements of the Semileptonic Decays $\Bb\to D\ell\nub$ and $\Bb\to D^*\ell\nub$ Using a Global Fit to $D X\ell\nub$ Final States

The BABAR Collaboration, B. Aubert

Semileptonic decays to ( or ) are selected by reconstructing and combinations from a sample of 230 million $Υ(4S) \to B\bar{B…

hep-ex2008★ 197 cited

Evidence for X(3872) --> psi(2S) gamma in B+/- --> X(3872) K+/- decays, and a study of B --> ccbar gamma K

The BABAR Collaboration, B. Aubert

In a search for B --> ccbar gamma K decays with the BaBar detector, where ccbar includes J/psi and psi(2S), and K includes K+, Ks, and K*(892), we find evidence for X(3872) --> J/p…

hep-ex2008★ 26 cited

Measurement of the Branching Fractions of the Radiative Charm Decays and

The BABAR Collaboration, B. Aubert

We present a measurement of the branching fractions for the Cabibbo-favored radiative decay, , and the Cabibbo-suppressed radiative decay, …

hep-ex2008★ 42 cited

Measurement of the Branching Fractions of Bbar -> D** l^- nubar_l Decays in Events Tagged by a Fully Reconstructed B Meson

The BABAR Collaboration, B. Aubert

We report a measurement of the branching fractions of Bbar -> D** l^- nubar_l decays based on 417 fb-1 of data collected at the Upsilon(4S) resonance with the BaBar detector at the…

hep-ex2008★ 26 cited

Measurements of time-dependent CP asymmetries in B0 --> D(*)+D(*)- decays

The BABAR Collaboration, B. Aubert

We present new measurements of time-dependent CP asymmetries for B0 --> D(*)+D(*)- decays using (467 +/- 5) X 10^6 BB pairs collected with the BaBar detector located at the PEP-II…

hep-ex2008★ 11 cited

Observation of B0 -> chi_c0K*0 and evidence for B+ -> chi_c0K*+

The BABAR Collaboration, B. Aubert

We present the observation of the decay B0 -> chi_c0K*0 as well as evidence of B+ -> chi_c0K*+, with an 8.9 and a 3.6 standard deviation significance, respectively, using a data sa…

hep-ex2008★ 47 cited

Measurement of D0-D0bar mixing from a time-dependent amplitude analysis of D0 -> K+ pi- pi0 decays

The BABAR Collaboration, B Aubert

We present evidence of - mixing using a time-dependent amplitude analysis of the decay D0->K+pi-pi0 in a data sample of 384 fb^-1 collected with the BaBar detector…

hep-ex2008★ 44 cited

Study of the decay Ds+ --> K+ K- e+ nu

The BABAR Collaboration, B. Aubert

Using 214 fb-1 of data recorded by the Babar detector at the PEPII electron-positron collider, we study the decay Ds+ --> K+ K- e+ nu. Except for a small S-wave contribution, the e…

hep-ex2008★ 45 cited

Study of the process e+e- -> omega pi0 in the phi-meson mass region with the KLOE detector

The KLOE Collaboration, F. Ambrosino, A. Antonelli +62

We have studied the e+e- -> omegapi0 cross section in the sqrt(s) interval 1000-1030 MeV using the pi+pi-pi0pi0 and pi0pi0gamma final states with a sample of ~600 pb^-1 collected w…

hep-ex2008★ 14 cited

Searches for B meson decays to phiphi, phirho, phifzero(980), and fzero(980)fzero(980) final states

The BaBar Collaboration, B. Aubert

We present the results of searches for B decays to charmless final states involving phi, fzero(980), and charged or neutral rho mesons. The data sample corresponds to 384 million B…

hep-ex2008★ 14 cited

Measurement of Ratios of Branching Fractions and CP-Violating Asymmetries of B -> D*K Decays

The BABAR Collaboration, B. Aubert

We report a study of B -> D*K decays with D* decaying to D pi0 or D gamma, using 383 * 10**6 B Bbar pairs collected at the Upsilon(4S) resonance with the BaBar detector at the SLAC…

hep-ex2008★ 36 cited

Study of hadronic transitions between Y states and observation of Y(4S)-> eta Y(1S) decay

The BABAR Collaboration, B. Aubert

We present a study of hadronic transitions between Y(mS) (m=4,3,2) and Y(nS) (n=2,1) resonances based on 347.5\invfb of data taken with the BABAR detector at the PEP-II storage rin…

hep-ex2008★ 165 cited

Observation of the bottomonium ground state in the decay Upsilon(3S) -> gamma eta_b

The BABAR Collaboration, B. Aubert

We report the results of a search for the bottomonium ground state eta_b(1S) in the photon energy spectrum with a sample of (109 +/- 1) million of Upsilon(3S) recorded at the Upsil…

hep-ex2008★ 13 cited

Observation of e+e- --> rho+rho- near sqrt(s)=10.58 GeV

The BABAR Collaboration, B. Aubert

We report the first observation of , in a data sample of 379 collected with the BABAR detector at the {PEP-II} storage ring at center-of-mass…

hep-ex2008★ 52 cited

Large-angle production of charged pions with 3-12.9 GeV/c incident protons on nuclear targets

HARP Collaboration

Measurements of the double-differential charged pion production cross-section in the range of momentum 100 MeV/c < p < 800 MeV/c and angle 0.35 < θ< 2.15 rad in proton-beryllium, p…

hep-ex2008★ 28 cited

Measurements of B --> {pi, eta, eta'} l nu Branching Fractions and Determination of |Vub| with Semileptonically Tagged B Mesons

The BABAR Collaboration, B. Aubert

We report measurements of branching fractions for the decays B --> P l nu, where P are the pseudoscalar charmless mesons pi-, pi0, eta and eta', based on 348 fb-1 of data collected…

hep-ex2008★ 10 cited

Branching Fractions and CP-Violating Asymmetries in Radiative B Decays to eta K gamma

The BABAR Collaboration, B. Aubert

We present measurements of the CP-violation parameters S and C for the radiative decay B0 -> eta K0s gamma; for B -> eta K gamma we also measure the branching fractions and for B+…