N. Copty

activity

19942005

most citedExperimental evidence for a light and broad scalar resonance in

D^{+} \to π^{-} π^{+} π^{+}

decay

315 citations · 1.1k across the 24 of their papers we have counts for

collaborators

24 papers

hep-ex2005★ 90 cited

Model Independent Measurement of \swave $K^{-} π^{+}$ 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 $K π$ system from decays of $D^{+}$ mesons to the three-body $\Km\pip\pip$ final state is described. Data co…

hep-ex2002★ 22 cited

Measurement of Ds+ and Ds*+ Production in B Meson Decays and from Continuum e+e- Annihilation at sqrt{s}=10.6 GeV

The BABAR Collaboration, B. Aubert

New measurements of Ds+ and Ds*+ meson production rates from B decays and from qqbar continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1 of data on the Y(4S) r…

hep-ex2001★ 19 cited

Direct CP Violation Searches in Charmless Hadronic B Meson Decays

The BABAR Collaboration, B. Aubert

We search for direct CP violation in charmless hadronic B decays observed in a sample of about 22.7 million $B B ˉ$ pairs collected with the BABAR detector at the PEP-II asymmet…

hep-ex2001★ 14 cited

Study of CP-violating asymmetries in B^0 --> pi^+pi^-, K^+pi^- decays

The BABAR Collaboration, H. Aubert

We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the $π^{+} π^{-}$ CP eigenstate, and an updated measurement of the charge asymmetry in $B^…

hep-ex2000★ 36 cited

Search for Rare and Forbidden Charm Meson Decays D0--> V l+ l- and h h l l

Fermilab E791 Collaboration, E. M. Aitala

We report the results of a search for flavor-changing neutral current, lepton-flavor, and lepton-number violating decays of the 3 and 4-body decay modes of D0 (and its antiparticle…

hep-ex2000★ 100 cited

Observation of color-transparency in diffractive dissociation of pions

E791 Collaboration, E. M. Aitala

We have studied the diffractive dissociation into di-jets of 500 GeV/c pions scattering coherently from carbon and platinum targets. Extrapolating to asymptotically high energies (…

hep-ex2000★ 106 cited

Direct measurement of the pion valence quark momentum distribution, the pion light-cone wave function squared

E791 Collaboration, E. M. Aitala

We present the first direct measurements of the pion valence quark momentum distribution which is related to the square of the pion light-cone wave function. The measurements were…

hep-ex2000★ 315 cited

Experimental evidence for a light and broad scalar resonance in $D^{+} \to π^{-} π^{+} π^{+}$ decay

E791 Collaboration

From a sample of $1172 \pm 61$ $D^{+} \to π^{-} π^{+} π^{+}$ decay, we find $Γ (D^{+} \to π^{-} π^{+} π^{+}) /Γ (D^{+} \to K^{-} π^{+} π^{+}) = 0.0311 \pm 0.001 8_{- 0.0026}^{+ 0.0016}$ . Using a coherent amp…

hep-ex2000

Measurement of the time dependence of B^0-anti-B^0 oscillations using inclusive dilepton events

The BABAR Collaboration, B. Aubert

A preliminary study of time dependence of B^0-anti-B^0 oscillations using dilepton events is presented. The flavor of the B meson is determined by the charge sign of the lepton. To…

hep-ex2000★ 34 cited

Search for CP violation in D0 and D+ decays

The FOCUS collaboration

A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay mode…

hep-ex2000★ 8 cited

Measurements of the Sigma_c^0 and Sigma_c^{++} Mass Splittings

The FOCUS Collaboration

Using a high statistics sample of photoproduced charmed particles from the FOCUS experiment at Fermilab (FNAL-E831), we measure the mass splittings of the charmed baryons Sigma_c^0…

hep-ex1998★ 10 cited

Measurement of the form-factor ratios for D_s^+ -> phi ell^+ nu_ell

Fermilab E791 Collaboration, E. M. Aitala, S. Amato

We have measured the form factor ratios r_V = V(0)/A_1(0) and r_2 = A_2(0)/A_1(0) for the decay D_s^+ -> phi ell^+ nu_ell, phi -> K^+ K^-, using data from charm hadroproduction exp…

hep-ex1998★ 10 cited

Measurement of the Ds Lifetime

Fermilab E791 Collaboration, E. M. Aitala

We report the results of a precise measurement of the Ds meson lifetime based on 1662 +/- 56 fully reconstructed Ds -> phi pi decays, from the charm hadroproduction experiment E791…

hep-ex1996★ 52 cited

Search for D0 - D0_bar Mixing in Semileptonic Decay Modes

E. M. Aitala, E791 Collaboration

We report the result of a search for D0 - D0_bar mixing in the data from hadroproduction experiment E791 at Fermilab. We use the D* tag and semileptonic decay vertices of D0 to loo…

hep-ex1996★ 15 cited

Mass Splitting and Production of $Σ_{c}^{0}$ and $Σ_{c}^{++}$ Measured in $500 G e V$ $π^{-} -$ N Interactions

E. M. Aitala

From a sample of $2722 \pm 78$ $Λ_{c}^{+}$ decaying to the $p K^{-} π^{+}$ final state, we have observed, in the hadroproduction experiment E791 at Fermilab, $143 \pm 20$ $Σ_{c}^{0}$ and $122 \p…

hep-ex1995★ 32 cited

Observation of the Isospin-Violating Decay $D_{s}^{*+} \to D_{s}^{+} π^{0}$

CLEO Collaboration, J. Gronberg et al

Using data collected with the CLEO~II detector, we have observed the isospin-violating decay $D_{s}^{*+} \to D_{s}^{+} π^{0}$ . The decay rate for this mode, relative to the dominant radiativ…

hep-ex1995★ 27 cited

Measurement of the Decay Asymmetry Parameters in $Λ_{c}^{+} \to Λ π^{+}$ and $Λ_{c}^{+} \to Σ^{+} π^{0}$

M. Bishai

We have measured the weak decay asymmetry parameters ($\aLC $) for two \LC\ decay modes. Our measurements are $\aLC = -0.94^{+0.21+0.12}_{-0.06-0.06} $ for the decay mode $Λ_c^+ \t…

hep-ex1994★ 6 cited

Measurement of the branching fraction for $Υ (1 S) \to τ^{+} τ^{-}$

D. Cinabro

We have studied the leptonic decay of the $Υ (1 S)$ resonance into tau pairs using the CLEO II detector. A clean sample of tau pair events is identified via events containing two cha…

hep-ex1994★ 106 cited

Measurement of the B -> D^* l nu Branching Fractions and |Vcb|

The CLEO Collaboration

We study the exclusive semileptonic B meson decays B- -> D*0 l- nu and B0 -> D*+ l- nu using data collected with the CLEO II detector at CESR. We present measurements of the branch…

hep-ph1994★ 9 cited

Measurement of the Branching Fraction for D^+ \to K^- π^+ π^+

The CLEO collaboration

Using the CLEO-II detector at CESR we have measured the ratio of branching fractions, ${\cal B}(D^+\rightarrow K^- π^+ π^+)/{\cal B}(D^0 \rightarrow K^-π^+) = 2.35 \pm 0.16 \pm 0.1…

hep-ph1994★ 33 cited

Two-Photon Production of Charged Pion and Kaon Pairs

The CLEO Collaboration

A measurement of the cross section for the combined two-photon production of charged pion and kaon pairs is performed using 1.2~ $f b^{- 1}$ of data collected by the CLEO~II detec…

hep-ph1994★ 58 cited

Production and Decay of D_1(2420)^0 and D_2^*(2460)^0

The CLEO Collaboration

We have investigated $D^{+} π^{-}$ and $D^{*+} π^{-}$ final states and observed the two established $L = 1$ charmed mesons, the $D_{1} (2420)^{0}$ with mass $242 1_{- 2 - 2}^{+ 1 + 2}$ MeV/c $^{2}$ …

hep-ph1994★ 13 cited

A Measurement of $B (D_{s} \to ϕ l^{+} ν) / c a l B (D_{s} \to ϕ π^{+})$

The CLEO Collaboration

Using the CLEO~II detector at CESR, we have measured the ratio of branching fractions $B (D_{s}^{+} \to ϕ e^{+} ν) / B (D_{s}^{+} \to ϕ π^{+}) = 0.54 \pm 0.05 \pm 0.04$ . We use this meas…

hep-ph1994★ 33 cited

Study of the Decay $Λ_c \to Λl^+ ν_{l}

The CLEO Collaboration

Using the CLEO II detector at CESR, we observe 500 $Λ l^{+}$ pairs consistent with the semileptonic decay $Λ_{c} \to Λ l^{+} ν_{l}$ . We measure $σ(e^+ e^- \to Λ_c X) \dot {cal B}(Λ_c^+ \to…

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

Measurement of Ds+ and Ds*+ Production in B Meson Decays and from Continuum e+e- Annihilation at sqrt{s}=10.6 GeV

Direct CP Violation Searches in Charmless Hadronic B Meson Decays

Study of CP-violating asymmetries in B^0 --> pi^+pi^-, K^+pi^- decays

Search for Rare and Forbidden Charm Meson Decays D0--> V l+ l- and h h l l

Observation of color-transparency in diffractive dissociation of pions

Direct measurement of the pion valence quark momentum distribution, the pion light-cone wave function squared

Experimental evidence for a light and broad scalar resonance in D+→π−π+π+ decay

Measurement of the time dependence of B^0-anti-B^0 oscillations using inclusive dilepton events

Search for CP violation in D0 and D+ decays

Measurements of the Sigma_c^0 and Sigma_c^{++} Mass Splittings

Measurement of the form-factor ratios for D_s^+ -> phi ell^+ nu_ell

Measurement of the Ds Lifetime

Search for D0 - D0_bar Mixing in Semileptonic Decay Modes

Mass Splitting and Production of Σc0​ and Σc++​ Measured in 500GeV π−−N Interactions

Observation of the Isospin-Violating Decay Ds∗+​→Ds+​π0

Measurement of the Decay Asymmetry Parameters in Λc+​→Λπ+ and Λc+​→Σ+π0

Measurement of the branching fraction for Υ(1S)→τ+τ−

Measurement of the B -> D^* l nu Branching Fractions and |Vcb|

Measurement of the Branching Fraction for D^+ \to K^- π^+ π^+

Two-Photon Production of Charged Pion and Kaon Pairs

Production and Decay of D_1(2420)^0 and D_2^*(2460)^0

A Measurement of B(Ds​→ϕl+ν)/calB(Ds​→ϕπ+)

Study of the Decay $Λ_c \to Λl^+ ν_{l}

Model Independent Measurement of \swave $K^{-} π^{+}$ systems using $\Dp\to Kππ$ Decays from Fermilab E791

Experimental evidence for a light and broad scalar resonance in $D^{+} \to π^{-} π^{+} π^{+}$ decay

Mass Splitting and Production of $Σ_{c}^{0}$ and $Σ_{c}^{++}$ Measured in $500 G e V$ $π^{-} -$ N Interactions

Observation of the Isospin-Violating Decay $D_{s}^{*+} \to D_{s}^{+} π^{0}$

Measurement of the Decay Asymmetry Parameters in $Λ_{c}^{+} \to Λ π^{+}$ and $Λ_{c}^{+} \to Σ^{+} π^{0}$

Measurement of the branching fraction for $Υ (1 S) \to τ^{+} τ^{-}$

A Measurement of $B (D_{s} \to ϕ l^{+} ν) / c a l B (D_{s} \to ϕ π^{+})$