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Dive into the research topics where A. Osterheld is active.

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Featured researches published by A. Osterheld.


Physics Letters B | 1982

Production of π0π0 and π0η in photon-photon collisions☆

C. Edwards; R. A. Partridge; C. Peck; F. C. Porter; D. Antreasyan; Yi-Fan Gu; W. Kollmann; M. Richardson; Konstantin Strauch; K. Wacker; A. Weinstein; D. Aschman; T.H. Burnett; M. Cavalli-Sforza; D. Coyne; C. Newman; H. Sadrozinski; D. Gelphman; R. Hofstadter; R. Horisberger; I. Kirkbride; H. Kolanoski; K. Königsmann; R. Lee; A. Liberman; J. O'Reilly; A. Osterheld; B. Pollock; J. Tompkins; E. D. Bloom

Abstract We investigate the four-photon final state produced in γγ colissions. In the π 0 π 0 channel we observe f(1270) production with predominantly helicity 2 and measure a partial width Γ γγ 2.9 +0.6 −0.4 ± keV (independent of assumptions on the helicity). We observe A 2 (1310) production in the π 0 η channel and find a partial width Γ γγ = 0.77 ± 0.18 ± 0.27 KeV (assuming helicity 2). We give an upper limit for f ≈ ηη .


Physical Review Letters | 1982

Observation of an eta eta Resonance in J/psi Radiative Decays

C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; Mark Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett


Physical Review Letters | 1982

Identification of a pseudoscalar state at 1440 MeV in J/psi radiative decays

C. A. Edwards; R. Partridge; C. Peck; F. C. Porter; D. Antreasyan; Y.F. Gu; J. Irion; W. Kollmann; M. Richardson; K. Strauch; K. Wacker; A. J. Weinstein; D. Aschman; T. H. Burnett; M. Cavalli-Sforza; D. C. Coyne; Charles M. Newman; H. Sadrozinski; D. Gelphman; R. Hofstadter; R. Horisberger; I. Kirkbride; H. Kolanoski; K. Koenigsmann; R. Lee; A. Liberman; J. O'Reilly; A. Osterheld; Brad H. Pollock; J. Tompkins


Physical Review Letters | 1982

Upper Limit for J/psi ---> gamma Axion

C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; Mark Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett


Physical Review Letters | 1982

Observation of a Pseudoscalar State at 1440-MeV in J/psi Radiative Decays

C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; M. J. Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett


Physical Review Letters | 1982

Observation of an eta(c)-prime Candidate State with Mass 3592-MeV +- 5-MeV

C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; M. J. Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett


Physical Review D | 1986

Charmonium Spectroscopy from Inclusive psi-prime and J/psi Radiative Decays

J. Gaiser; F. C. Porter; C. Peck; R. Hofstadter; D.L. Scharre; J. O'Reilly; R. Lee; A. J. Weinstein; M. J. Oreglia; Y.F. Gu; I. Kirkbride; C. A. Edwards; W.S. Kollmann; H. Sadrozinski; G. Godfrey; D. Gelphman; J. Irion; Elliott D. Bloom; F. Bulos; R. Partridge; D. Antreasyan; D. Aschman; M. Cavalli-Sforza; R. Horisberger; William Lockman; J. Tompkins; H. Kolanoski; A. Liberman; K. Wacker; Kay Konigsmann


Physical Review Letters | 1982

Observation of an eta'/sub c/ candidate state with mass 3592 +- 5 MeV

C. A. Edwards; R. Partridge; C. Peck; F. C. Porter; D. Antreasyan; Y.F. Gu; W. Kollmann; M. Richardson; K. Strauch; K. Wacker; A. J. Weinstein; D. Aschman; T. H. Burnett; M. Cavalli-Sforza; D. C. Coyne; Charles M. Newman; H. Sadrozinski; D. Gelphman; R. Hofstadter; R. Horisberger; I. Kirkbride; H. Kolanoski; K. Koenigsmann; R. Lee; A. Liberman; J. O'Reilly; A. Osterheld; Brad H. Pollock; J. Tompkins; E. D. Bloom


Physical Review D | 1983

Observation of the Production of

A. J. Weinstein; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; M. J. Oreglia; R. Lee; R. Horisberger; C. A. Edwards; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; R. Chestnut


Physical Review Letters | 1982

\eta

C. M. Edwards; R. Partridge; Charles Peck; F. C. Porter; D. Antreasyan; Yi-Fan Gu; W. K. Kollmann; M. Richardson; K. Strauch; Alan J. Weinstein; D. Aschman; T. H. Burnett; M. Cavalli-Sforza; D. C. Coyne; Charles M. Newman; H. Sadrozinski; D. Gelphman; R. Hofstadter; Roland Horisberger; I. Kirkbride; H. Kolanoski; Kay Konigsmann; R. T. Lee; A. Liberman; J. O'Reilly; A. Osterheld; Bruce G. Pollock; J. Tompkins; Elliott D. Bloom; F. Bulos

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A. Liberman

California Institute of Technology

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D. Aschman

California Institute of Technology

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F. C. Porter

California Institute of Technology

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H. Sadrozinski

University of California

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J. Tompkins

California Institute of Technology

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J. O'Reilly

California Institute of Technology

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H. Kolanoski

Humboldt University of Berlin

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C. Peck

California Institute of Technology

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