J. Bartelt

activity

19942009

most citedThe Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

4.1k citations · 5.9k across the 40 of their papers we have counts for

collaborators

40 papers

astro-ph.IM2009★ 155 cited

The On-orbit Calibrations for the Fermi Large Area Telescope

The Fermi LAT Collaboration

The Large Area Telescope (LAT) on--board the Fermi Gamma ray Space Telescope began its on--orbit operations on June 23, 2008. Calibrations, defined in a generic sense, correspond t…

astro-ph.IM2009★ 4.1k cited

The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

LAT Collaboration, W. B. Atwood

(Abridged) The Large Area Telescope (Fermi/LAT, hereafter LAT), the primary instrument on the Fermi Gamma-ray Space Telescope (Fermi) mission, is an imaging, wide field-of-view, hi…

hep-ex2003★ 21 cited

Observation of Radiative Decay $D^{0} \to ϕ γ$

The Belle Collaboration, O. Tajima

We report the observation of the decay $D^{0} \to ϕ γ$ with a statistical significance of $5.4 σ$ in $78.1 \ifb$ of data collected by the Belle experiment at the KEKB $e^{+} e^{-}$ colli…

hep-ex2003★ 704 cited

Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2

the BABAR Collaboration, B. Aubert

We have observed a narrow state near 2.32 GeV/c^2 in the inclusive Ds+ pi0 invariant mass distributionfrom e+e- annihilation data at energies near 10.6 GeV. The observed width is c…

hep-ex1998★ 22 cited

Search for Exclusive Rare Baryonic Decays of $B$ Mesons

T. E. Coan

We report the results of a search for the rare baryonic decay modes B -> Lambda Lambdabar, B -> Lambdabar p, B -> Lambdabar p pi, and B -> p pbar using 5.8M BBbar pairs collected w…

hep-ex1998★ 30 cited

Study of 3-prong Hadronic $τ$ Decays with Charged Kaons

S. Richichi

Using a sample of 4.7/fb integrated luminosity accumulated with the CLEO-II detector at the Cornell Electron Storage Ring (CESR), we have measured the branching fractions of the ta…

hep-ex1998★ 18 cited

First Observation of the Decay $τ^{-} \to K^{*-} η ν_{τ}$

M. Bishai

Using data recorded by the CLEO-II detector at CESR, we report the first measurement of the branching fraction for the decay of $τ^{-}$ into $K^{*-} η ν_{τ}$ . The measured branching frac…

hep-ex1998★ 11 cited

$Υ$ Dipion Transitions at Energies Near the $Υ (4 S)$

S. Glenn

Using a data sample collected with the CLEO II detector at CESR, we have searched for dipion transitions between pairs of $Υ$ resonances at energies near the $Υ (4 S)$ . We obtain upp…

hep-ex1998★ 15 cited

Further Search for the Two-Photon Production of the Glueball Candidate $f_{J} (2220)$

M. S. Alam

The CLEOII detector at the Cornell e+ e- storage ring CESR has been used to search for the two-photon production of the $f_{J} (2220)$ decaying into pi+ pi-. No evidence for a signal…

hep-ex1998★ 14 cited

First Search for CP Violation in Tau Lepton Decay

S. Anderson

Using the CLEO II detector we have performed the first search for $C P$ violation in tau lepton decay. CP violation in lepton decay does not occur in the minimal standard model but…

hep-ex1998★ 12 cited

A Limit on the Mass of the $ν_{τ}$

R. Ammar, CLEO Collaboration et al

A limit on the mass of the tau neutrino is derived from 4.5 million tau pairs produced in an integrated luminosity of 5.0 fb^{-1} of electron-positron annihilation to tau pairs at…

hep-ex1998★ 22 cited

Radiative Decay Modes of the $D^{0}$ Meson

D. Asner

Using data recorded by the CLEO-II detector at CESR we have searched for four radiative decay modes of the $D^{0}$ meson: $D^{0} \to ϕ γ$ , $D^{0} \to ω γ$ , $D^{0} \to K ˉ^{*} γ$ , and $D^0\toρ^0…

hep-ex1998★ 26 cited

Measurement of the Mass Splittings between the $b b ˉ χ_{b, J} (1 P)$ States

K. Edwards

We present new measurements of photon energies and branching fractions for the radiative transitions: Upsilon(2S)->gamma+chi_b(J=0,1,2). The masses of the chi_b states are determin…

hep-ex1998★ 11 cited

Continuum Charged $D^{*}$ Spin Alignment at $s q r t s$ = 10.5 GeV

G. Brandenburg

A measurement of the spin alignment of charged D^* mesons produced in continuum e^+ e^- \to c \bar{c} events at \sqrt{s}=10.5 GeV is presented. This study using 4.72 fb^{-1} of CLE…

hep-ex1997★ 11 cited

Measurement of $B r (D^{0} \to K^{-} π^{+})$ using Partila Reconstruction of $B ˉ \to D^{*+} X ℓ^{-} ν ˉ$

CLEO Collaboration, M. Artuso et al

We present a measurement of the absolute branching fraction for $D^{0} - > K^{-} p i^{+}$ using the reconstruction of the decay chain $B ba r - > D^{*+} X l^{-} n u ba r$ , $D^{*+} - > D^{0} p i^{+}$ wh…

hep-ex1997★ 12 cited

Search for the Decay $B \to D_{s 1}^{+} (2536) X$

M. Bishai

Using data recorded by the CLEO II detector at CESR, we have searched for the decay B -> Ds1+(2536) X, where Ds1+ is the narrow P-wave D_s^+ meson with J^P=1^+. The upper limit to…

hep-ex1997★ 7 cited

Measurement of the Branching Fractions of $Λ_{c}^{+} \to p K ˉ n (π)$

CLEO Collaboration, M. S. Alam et al

Using data recorded by the CLEO-II detector at CESR, we report new measurements of the branching fractions for the decays of the charmed baryon $Λ_{c}^{+}$ into $p K^{-} π^{+} π^{0}$ , $p\bar{K}…

hep-ex1997★ 41 cited

Investigation of Semileptonic $B$ Meson Decay to P-Wave Charm Mesons

CLEO Collaboration, A. Anastassov et al

We have studied semileptonic $B$ meson decays with a P-wave charm meson in the final state using 3.29 x 10^6 B\bar{B} events collected by the CLEO~II detector at the Cornell Electr…

hep-ex1997★ 10 cited

Search for the Decay $τ^{-} \to 4 p i^{-} 3 π^{+} (π^{0}) ν_{τ}$

CLEO Collaboration, K. Edwards et al

We have searched for the decay of the tau lepton into seven charged particles and zero or one pi0. The data used in the search were collected with the CLEO II detector at the Corne…

hep-ex1997★ 62 cited

A Measurement of the Total Cross Section for $e^{+} e^{-} \to ha d r o n s$ at $s$ =10.52 GeV

CLEO Collaboration, R. Ammar et al

Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of R=sigma(e+e- ->hadrons)/sigma(e+e- ->mu+mu-) =3.56+/-0.01+/-0.07 at ECM=10.52 GeV. This…

hep-ex1997★ 34 cited

First Observation of $τ \to 3 π η ν_{τ}$ and $τ \to f_{1} π ν_{τ}$ Decays

CLEO Collaboration, T. Bergfeld et al

We have observed new channels for $τ$ decays with an $η$ in the final state. We study 3-prong tau decays, using the $η \to γ γ$ and $η\to 3\piz$ decay modes and 1-prong decays with tw…

hep-ex1997★ 14 cited

A New Measurement of $B \to D^{*} π$ Branching Fractions

G. Brandenburg

The decays Upsilon(4S) -> BB, followed by B -> D* pi and D* -> D pi, permit reconstruction of all kinematic quantities that describe the sequence without reconstruction of the D, w…

hep-ex1997★ 22 cited

Determination of the Michel Parameters and the tau Neutrino Helicity in tau Decay

CLEO Collaboration, J. P. Alexander et al

Using the CLEO II detector at the $e^{+} e^{-}$ storage ring CESR, we have determined the Michel parameters $ρ$ , $ξ$ , and $δ$ in $τ^{\mp} \to l^{\mp} ν ν ˉ$ decay as well as the tau neutrin…

hep-ex1997★ 8 cited

Studies of the Cabbibo-Suppressed Decays $D^{+} \to π^{0} ℓ^{+} ν$ and $D^{+} \to η e^{+} ν_{e}$

CLEO Collaboration, J. Bartelt

Using 4.8 fb $^{- 1}$ of data taken with the CLEO II detector, the branching fraction for the Cabibbo-suppressed decay $D^{+} \to π^{0} ℓ^{+} ν$ measured relative to the Cabibbo favored dec…

The On-orbit Calibrations for the Fermi Large Area Telescope

The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

Observation of Radiative Decay D0→ϕγ

Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2

Search for Exclusive Rare Baryonic Decays of B Mesons

Study of 3-prong Hadronic τ Decays with Charged Kaons

First Observation of the Decay τ−→K∗−ηντ​

Υ Dipion Transitions at Energies Near the Υ(4S)

Further Search for the Two-Photon Production of the Glueball Candidate fJ​(2220)

First Search for CP Violation in Tau Lepton Decay

A Limit on the Mass of the ντ​

Radiative Decay Modes of the D0 Meson

Measurement of the Mass Splittings between the bbˉχb,J​(1P) States

Continuum Charged D∗ Spin Alignment at sqrts = 10.5 GeV

Measurement of Br(D0→K−π+) using Partila Reconstruction of Bˉ→D∗+Xℓ−νˉ

Search for the Decay B→Ds1+​(2536)X

Measurement of the Branching Fractions of Λc+​→pKˉn(π)

Investigation of Semileptonic B Meson Decay to P-Wave Charm Mesons

Search for the Decay τ−→4pi−3π+(π0)ντ​

A Measurement of the Total Cross Section for e+e−→hadrons at s​=10.52 GeV

First Observation of τ→3πηντ​ and τ→f1​πντ​ Decays

A New Measurement of B→D∗π Branching Fractions