activity
19952007
most citedExperimental evidence for a light and broad scalar resonance in decay

315 citations · 1.6k across the 44 of their papers we have counts for

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43 papers · 1 filter

hep-ex2007★ 1 cited

Study of Cabibbo Suppressed Decays of the Ds Charmed-Strange Meson involving a KS

J. M. Link

We study the decay of Ds meson into final states involving a Ks and report the discovery of Cabibbo suppressed decay modes Ds -> Kspi-pi+pi+ (179 +/- 36 events) and Ds -> Kspi+ (11…

hep-ex2006★ 4 cited

A Non-parametric Approach to Measuring the \kpi{} Amplitudes in \dpkkpi{} Decay

The FOCUS collaboration

Using a large sample of \dpkkpi{} decays collected by the FOCUS photoproduction experiment at Fermilab, we present the first non-parametric analysis of the \kpi{} amplitudes in \dp…

hep-ex2005★ 90 cited

Model Independent Measurement of \swave systems using $\Dp\to Kππ$ Decays from Fermilab E791

E791 Collaboration, E. Aitala

A model-independent partial-wave analysis of the \swave component of the system from decays of mesons to the three-body $\Km\pip\pip$ final state is described. Data co…

hep-ex2004★ 12 cited

Study of the doubly and singly Cabibbo suppressed decays D+ --> K+ pi+ pi- and Ds+ --> K+ pi+ pi-

FOCUS collaboration

Using data collected by the high energy photoproduction experiment FOCUS at Fermilab we study the doubly and singly Cabibbo suppressed decays D+ and Ds+ --> K+ pi+ pi-. Branching r…

hep-ex2004★ 21 cited

Measurement of the Ratio of the Vector to Pseudoscalar Charm Semileptonic Decay Rate Γ(D+ > ANTI-K*0 mu+ nu)/Γ(D+ > ANTI-K0 mu+ nu)

The FOCUS Collaboration

Using a high statistics sample of photo-produced charm particles from the FOCUS experiment at Fermilab, we report on the measurement of the ratio of semileptonic rates Γ(D+ > ANTI-…

hep-ex2003★ 9 cited

Asymmetries in the Production of Lambda0 in 250 GeV/c pi+-, K+- and p -- Nucleon Interactions

G. A. Alves, S. Amato, J. C. Anjos +35

Using data from Fermilab fixed-target experiment E769, we have measured particle-antiparticle production asymmetries for Lambda0 hyperons in 250 GeV/c pi+-, K+- and p -- nucleon in…

hep-ex2003★ 31 cited

Study of the Cabibbo-suppressed decay modes D0-->Pi-pi+ and D0-->K-K+

FOCUS Collaboration

Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D0-->Pi-Pi+ and D0-->K-K+. We m…

hep-ex2002★ 7 cited

Study of Hadronic Five-Body Decays of Charmed Mesons

M. Wahl

We study the decay of D+ and Ds+ mesons into charged five body final states, and report the discovery of the decay mode D+ -> K+K-Pi+Pi+Pi-, as well as measurements of the decay mo…

hep-ex2002★ 18 cited

Observation of a 1750 MeV/c^2 Enhancement in the Diffractive Photoproduction of K^+K^-

FOCUS Collaboration

Using the FOCUS spectrometer with photon beam energies between 20 and 160 \gev, we confirm the existence of a diffractively photoproduced enhancement in at 1750 \mevcc wit…

hep-ex2002★ 113 cited

Charm System Tests of CPT and Lorentz Invariance with FOCUS

J. M. Link

We have performed a search for CPT violation in neutral charm meson oscillations. While flavor mixing in the charm sector is predicted to be small by the Standard Model, it is stil…

hep-ex2002★ 37 cited

New Measurements of the D+ to K* mu nu Form Factor Ratios

The FOCUS Collaboration

Using a large sample of D+ to K- pi+ mu+ nu decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic form factor ratios…

hep-ex2002★ 8 cited

A new measurement of the lifetime

J. M. Link

Using data collected by the Fermilab experiment FOCUS, we measure the lifetime of the charmed baryon (Ξ_{c}^{o}) using the decay channels (Ξ_{c}^{o}\to Ξ^{-}π^{+}) and (Ξ_{c}^{o}\t…

hep-ex2002★ 10 cited

New Measurements of the D+ to K*munu/k2pi and Ds to phimunu/phipi Branching ratios

The Focus Collaboration

Using a large sample of charm semileptonic decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic branching ratios. W…

hep-ex2002★ 9 cited

Measurements of Relative Branching Ratios of Decays into States Containing

J. M. Link

We have studied the Cabibbo suppressed decay (Λ_{c}^{+}\to Σ^{+}K^{*0}(892)) and the Cabibbo favored decays (Λ_{c}^{+}\to Σ^{+}K^{+}K^{-}), (Λ_{c}^{+}\to Σ^{+}ϕ) and (Λ_{c}^{+}\to…

hep-ex2002★ 12 cited

Differential cross sections, charge production asymmetry, and spin-density matrix elements for D*(2010) produced in 500 GeV/c pi^- nucleon interactions

Fermilab E791 Collaboration

We report differential cross sections for the production of D*(2010) produced in 500 GeV/c pi^- nucleon interactions from experiment E791 at Fermilab, as functions of Feynman-x (x_…

hep-ex2002★ 77 cited

Evidence for new interference phenomena in the decay D+ to K- pi+ mu+ nu

The FOCUS Collaboration

Using a large sample of charm semileptonic decays collected by the FOCUS photoproduction experiment at Fermilab, we present evidence for a small, even spin K- π+ amplitude that int…

hep-ex2002★ 15 cited

A High Statistics Measurement of the Lambdac+ Lifetime

J. M. Link

A high statistics measurement of the Lambdac+ lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis technique with particu…

hep-ex2001★ 16 cited

A New Measurement of the Cascade(c)+ Lifetime

FOCUS Collaboration

A precise determination of the charm-strange baryon Cascade(c)+ lifetime is presented. The data were accumulated by the Fermilab high-energy photoproduction experiment FOCUS. The m…

hep-ex2001★ 29 cited

Reconstruction of Vees, Kinks, 's, and 's in the Focus Spectrometer

The FOCUS Collaboration

We describe the various techniques developed in the Fermilab Wideband Experiments, E687 and FOCUS, to reconstruct long-lived states. The techniques all involve modifications to sta…

hep-ex2001★ 32 cited

Search for CP Violation in the decays D+ -> K_S pi+ and D+ -> K_S K+

The FOCUS Collaboration

A high statistics sample of photo-produced charm from the FOCUS(E831) experiment at Fermilab has been used to search for direct CP violation in the decays D+->K_S pi+ and D+ -> K_S…

hep-ex2001★ 59 cited

Cerenkov Particle Identification in FOCUS

The FOCUS Collaboration

We describe the algorithm used to identify charged tracks in the fixed-target charm-photoproduction experiment FOCUS.

hep-ex2001★ 9 cited

A measurement of branching ratios of and hadronic decays to four-body final states containing a

FOCUS collaboration, J. M. Link

We have studied hadronic four-body decays of and mesons with a in the final state using data recorded during the 1996-1997 fixed-target run at Fermilab high ene…

hep-ex2001★ 10 cited

Measurement of the relative branching ratio BR(Ξ_c^+ \to p^+ K^-π^+)\BR(Ξ_c^+ \to Ξ^- π^+ π^+)

The FOCUS collaboration, J. M. Link

We report the observation of the Cabibbo suppressed decay Ξ_c^+ \to p K^-π^+ using data collected with the FOCUS spectrometer during the 1996--97 Fermilab fixed target run. We find…

hep-ex2000★ 21 cited

A Study of the Decay D0->K+pi-

FOCUS Collaboration, Jonathan M. Link

Using a large sample of photoproduced charm mesons from the FOCUS experiment at Fermilab (FNAL-E831), we observe the decay with a signal yield of events…