I. Volobouev

Southern Methodist University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

M. Artuso

Syracuse University

S. Stone

Syracuse University

V. Fadeyev

University of California, Santa Cruz

S. Köpp

Leipzig University

АE

А. Efimov

Federal Medical-Biological Agency

S. Anderson

Yale University

T. Skwarnicki

Syracuse University

S. Schuh

Ostwestfalen-Lippe University of Applied Sciences and Arts

J. Staeck

Johannes Gutenberg University Mainz

R. Poling

University of Minnesota

Cooperative Institutions

Institute of High Energy Physics

1,464

A. Alikhanyan National Laboratory

1,281

University of Antwerp

1,187

European Organization for Nuclear Research

625

Cornell University

291

Fermi National Accelerator Laboratory

183

University of Florida

163

Purdue University West Lafayette

154

Centre National de la Recherche Scientifique

147

University of California, Santa Barbara

145

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Flavor-Specific InclusiveBDecays to Charm

Physical Review Letters (1998)

T. E. Coan V. Fadeyev I. Korolkov Y. Maravin I. Narsky

We have measured the branching fractions for B -> D_bar X, B -> D X, and B -> D_bar X \ell^+ \nu, where ``B'' is an average over B^0 and B^+, ``D'' is a sum over D^0 and D^+, and``D_bar'' is a sum over D^0_bar and D^-. From these results and some previously measured branching fractions, we obtain Br(b -> c c_bar s) = (21.9 $\pm$ 3.7)%, Br(b -> s g) < 6.8% @ 90% c.l, and Br(D^0 -> K^- \pi^+) = (3.69 $\pm$ 0.20)%. Implications for the ``B semileptonic decay problem'' (measured branching fraction being below theoretical expectations) are discussed. The increase in the value of Br(b -> c c_bar s) due to $B -> D X$ eliminates 40% of the discrepancy.

Bar (unit)

Branching fraction

Branching (polymer chemistry)

10.1103/physrevlett.80.1150

Cite

Citations (60)

Erratum: Experimental tests of lepton universality in τ decay [Phys. Rev. D 55, 2559 (1997)]

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields (1998)

A. Anastassov S. Blinov J. E. Duboscq K. D. Fisher D. Fujino

The originally published correlation coefficients between measured branching ratios are incorrect.

10.1103/physrevd.58.119903

Cite

Citations (3)

Search for neutrinoless [Formula presented] decays: [Formula presented] and [Formula presented]

Lincoln (University of Nebraska) (1997)

K. W. Edwards A. Bellerive R. Janicek D. B. MacFarlane K. W. McLean

Source

Cite

Citations (0)

Study of the Decayτ−→2π−π

Physical Review Letters (1997)

S. Anderson Y. Kubota S. J. Lee J. J. O’Neill S. Patton

The decay ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}2{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}3{\ensuremath{\pi}}^{0}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ has been studied with the CLEO II detector at the Cornell Electron Storage Ring. The branching fraction is measured to be $(2.85\ifmmode\pm\else\textpm\fi{}0.56\ifmmode\pm\else\textpm\fi{}0.51)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$. The result is in good agreement with the isospin expectation but somewhat below the conserved-vector-current prediction. We have searched for resonance substructure in the decay. Within the statistical precision, the decay is saturated by the channels ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ensuremath{-}}2{\ensuremath{\pi}}^{0}\ensuremath{\omega}{\ensuremath{\nu}}_{\ensuremath{\tau}}$, $2{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}\ensuremath{\eta}{\ensuremath{\nu}}_{\ensuremath{\tau}}$, and ${\ensuremath{\pi}}^{\ensuremath{-}}2{\ensuremath{\pi}}^{0}\ensuremath{\eta}{\ensuremath{\nu}}_{\ensuremath{\tau}}$. This is the first observation of this \ensuremath{\omega} decay mode and the branching fraction is measured to be $({1.89}_{\ensuremath{-}0.67}^{+0.74}\ifmmode\pm\else\textpm\fi{}0.40)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$.

10.1103/physrevlett.79.3814

Cite

Citations (10)

New Measurement ofB→D*πBranching Fractions

Physical Review Letters (1998)

G. Brandenburg R. A. Briere Y. S. Gao D. Y.-J. Kim R. Wilson

The decays $\ensuremath{\Upsilon}(4S)\ensuremath{\rightarrow}B\overline{B}$, followed by $B\ensuremath{\rightarrow}{D}^{*}\ensuremath{\pi}$ and ${D}^{*}\ensuremath{\rightarrow}D\ensuremath{\pi}$, permit reconstruction of all kinematic quantities that describe the sequence without reconstruction of the $D$, with reasonably low backgrounds. Using an integrated ${e}^{+}{e}^{\ensuremath{-}}$ luminosity of $3.1{\mathrm{fb}}^{\ensuremath{-}1}$ accumulated at the $\ensuremath{\Upsilon}(4S)$ by the CLEO-II detector, we report measurements of $B({\overline{B}}^{0}\ensuremath{\rightarrow}{D}^{*+}{\ensuremath{\pi}}^{\ensuremath{-}})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}(2.81\ifmmode\pm\else\textpm\fi{}0.11\ifmmode\pm\else\textpm\fi{}0.21\ifmmode\pm\else\textpm\fi{}0.05)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ and $B({B}^{\ensuremath{-}}\ensuremath{\rightarrow}{D}^{*0}{\ensuremath{\pi}}^{\ensuremath{-}})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}(4.34\ifmmode\pm\else\textpm\fi{}0.33\ifmmode\pm\else\textpm\fi{}0.34\ifmmode\pm\else\textpm\fi{}0.18)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$.

10.1103/physrevlett.80.2762

Cite

Citations (14)

First Observation ofτ→3πηντandτ→Physical Review Letters (1997)

T. Bergfeld B. I. Eisenstein J. Ernst G. E. Gladding G. D. Gollin

We have observed new channels for τ decays with an η in the final state. We study 3-prong tau decays, using the η→γγ and η→3π0 decay modes and 1-prong decays with two π0's using the η→γγ channel. The measured branching fractions are B(τ−→π−π−π+ηντ)=(3.4−0.5+0.6±0.6)×10−4 and B(τ−→π−2π0ηντ)=(1.4±0.6±0.3)×10−4. We observe clear evidence for f1→ηππ substructure and measure B(τ−→f1π−ντ)=(5.8−1.3+1.4±1.8)×10−4. We have also searched for η′(958) production and obtain 90% C.L. upper limits B(τ−→π−η′ντ)<7.4×10−5 and B(τ−→π−π0η′ντ)<8.0×10−5.Received 25 June 1997DOI:https://doi.org/10.1103/PhysRevLett.79.2406©1997 American Physical Society

Substructure

10.1103/physrevlett.79.2406

Cite

Citations (32)

Search for the decayτ−→4π−3π+

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields (1997)

K. W. Edwards A. Bellerive R. Janicek D. B. MacFarlane P. M. Patel

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 Cornell Electron Storage Ring (CESR) and correspond to an integrated luminosity of 4.61 fb^(-1). No evidence for a signal is found. Assuming all the charged particles are pions, we set an upper limit on the branching fraction, B(tau- -> 4pi- 3pi+ (pi0) nu_tau) < 2.4 x 10^(-6) at the 90% confidence level. This limit represents a significant improvement over the previous limit.

10.1103/physrevd.56.r5297

Cite

Citations (9)

Performance of the CLEO III LiF-TEA ring imaging Cherenkov detector in a high-energy muon beam

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (2000)

M. Artuso R. Ayad F. Azfar А. Efimov S. Köpp

Cherenkov detector

Fermilab

Photoelectric effect

10.1016/s0168-9002(99)00985-7

Cite

Citations (9)

Measurement of the branching fractions ofΛc+→pK¯n(

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields (1998)

M. S. Alam S. B. Athar Z. Ling A. H. Mahmood H. Severini

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 ${\ensuremath{\Lambda}}_{c}^{+}$ into ${\mathrm{pK}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0},$ $p{K}^{0},$ $p{K}^{0}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}},$ and $p{K}^{0}{\ensuremath{\pi}}^{0},$ all measured relative to ${\mathrm{pK}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}.$ The relative branching fractions are $0.67\ifmmode\pm\else\textpm\fi{}0.04\ifmmode\pm\else\textpm\fi{}0.11,0.46\ifmmode\pm\else\textpm\fi{}0.02\ifmmode\pm\else\textpm\fi{}0.04,0.52\ifmmode\pm\else\textpm\fi{}0.04\ifmmode\pm\else\textpm\fi{}0.05,$ and $0.66\ifmmode\pm\else\textpm\fi{}0.05\ifmmode\pm\else\textpm\fi{}0.07,$ respectively.

Branching fraction

Branching (polymer chemistry)

10.1103/physrevd.57.4467

Cite

Citations (5)

The CLEO-III RICH Detector and Beam Test Results

arXiv (Cornell University) (1999)

J. C. Wang M. Artuso R. Ayad F. Azfar E. Dambasuren

We are constructing a Ring Imaging Cherenkov detector (RICH) for the CLEO III upgrade for precision charged hadron identification. The RICH uses plane and sawtooth LiF crystals as radiators, MWPCs as photon detectors with TEA as the photo-sensitive material, and low-noise Viking readout electronics. Results of a beam test of the first two out of total 30 sectors are presented.

10.48550/arxiv.hep-ex/9903066

Cite

Citations (0)