K. Fairfield
University of Würzburg
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Featured researches published by K. Fairfield.
European Physical Journal A | 1988
Z. Jakubowski; C. Peck; H. Marsiske; A. Engler; A. C. König; F. H. Heimlich; P. Zschorsch; G. Drews; U. Strohbusch; D. Sievers; R.W. Kraemer; K. Wachs; C. Pegel; H. Kilian; R.T. Van de Walle; T. Kiel; B. Niczyporuk; J. Tompkins; B. van Uitert; K. Fairfield; R. Cowan; H. W. Bartels; F. Messing; G. Glaser; F. C. Porter; G. Conforto; P. Schmitt; S. Lowe; Daniel Marlow; K. Graaf
AbstractUsing the Crystal Ball detector operating at the DORIS II storage ring we have measured the leptonic partial widthsГee of the Υ(1S) and Υ(2S) resonances. We find
European Physical Journal C | 1990
D. Antreasyan; H. W. Bartels; D. Besset; Ch. Bieler; J. K. Bienlein; Andrea Bizzeti; E. D. Bloom; I. Brock; K. Brockmüller; R. Cabenda; A.M. Cartacci; M. Cavalli-Sforza; R. Clare; A. Compagnucci; G. Conforto; S. Cooper; R. Cowan; D. Coyne; A. Engler; K. Fairfield; G. Folger; A. Fridman; J. Gaiser; D. Gelphman; G. Glaser; G. Godfrey; K. Graaf; F. H. Heimlich; F.-H. Heinsius; R. Hofstadter
European Physical Journal A | 1990
M. Kobel; C. Peck; H. Marsiske; M. Reidenbach; A. Engler; A. C. König; F. H. Heimlich; P. Zschorsch; U. Strohbusch; D. Sievers; K. Wachs; H. Kilian; R.T. Van de Walle; W. Maschmann; T. Kiel; B. Niczyporuk; J. Tompkins; Dc Williams; B. van Uitert; H. Janssen; K. Fairfield; R. Cowan; F. C. Porter; F. Messing; G. Glaser; G. Conforto; P. Schmitt; S. Lowe; K. Karch; Daniel Marlow
\Gamma _{ee} (\Upsilon (1S)) = 1.34 \pm 0.03 \pm 0.06keV
European Physical Journal A | 1990
C. Bieler; C. Peck; H. Marsiske; H. Janssen; A. Engler; A. C. König; F. H. Heimlich; P. Zschorsch; U. Strohbusch; D. Sievers; K. Wachs; H. Kilian; R.T. Van de Walle; T. Kiel; B. Niczyporuk; J. Tompkins; B. van Uitert; K. Fairfield; R. Cowan; H. W. Bartels; F. Messing; G. Glaser; F. C. Porter; G. Conforto; P. Schmitt; S. Lowe; Daniel Marlow; K. Graaf; G. Folger; K. Karch
Physical Review D | 1990
H. Marsiske; D. Antreasyan; H. W. Bartels; D. Besset; C. Bieler; J. K. Bienlein; Andrea Bizzeti; E. D. Bloom; Brock I I; K. Brockmüller; R. Cabenda; A.M. Cartacci; M. Cavalli-Sforza; R. Clare; A. Compagnucci; G. Conforto; S. Cooper; R. Cowan; D. Coyne; A. Engler; K. Fairfield; G. Folger; A. Fridman; D. Gaiser; D. Gelphman; G. Glaser; G. Godfrey; K. Graaf; F. H. Heimlich; F.-H. Heinsius
and
Physical Review D | 1988
Dc Williams; D. Antreasyan; H. W. Bartels; D. Besset; C. Bieler; J. K. Bienlein; Andrea Bizzeti; E. D. Bloom; Brock I I; K. Brockmüller; R. Cabenda; A.M. Cartacci; M. Cavalli-Sforza; R. Clare; A. Compagnucci; G. Conforto; S. Cooper; R. Cowan; D. Coyne; G. Drews; A. Engler; K. Fairfield; G. Folger; A. Fridman; J. Gaiser; D. Gelphman; G. Glaser; G. Godfrey; F. H. Heimlich; R. Hofstadter
Physical Review D | 1987
D. Antreasyan; H. W. Bartels; D. Besset; C. Bieler; J. K. Bienlein; Andrea Bizzeti; E. D. Bloom; Brock I I; K. Brockmüller; R. Cabenda; A.M. Cartacci; M. Cavalli-Sforza; R. Clare; G. Conforto; S. Cooper; R. Cowan; D. Coyne; G. Drews; C. Edwards; A. Engler; K. Fairfield; G. Folger; A. Fridman; J. Gaiser; D. Gelphman; G. Glaser; G. Godfrey; F. H. Heimlich; R. Hofstadter; J. Irion
\Gamma _{ee} (\Upsilon (2S)) = 0.56 \pm 0.04 \pm 0.02keV.
Physics Letters B | 1991
Andrea Bizzeti; G. Glaser; Dc Williams; K. Graaf; H. Meyer; W. Koch; R. Hofstadter; H. Janssen; D. Coyne; A.M. Cartacci; A. C. König; F. H. Heimlich; B. Niczyporuk; U. Volland; G. Conforto; B. Monteleoni; C. Bieler; Z. Jakubowski; A. Voigt; P. Schmitt; G. Godfrey; T. Skwarnicki; S. Keh; B. Lurz; A. Fridman; G. Folger; P. G. Pelfer; W.J. Metzger; K. Wachs; S. Cooper
Physical Review D | 1988
D. Williams; D. Antreasyan; H. W. Bartels; D. Besset; C. Bieler; J. K. Bienlein; A. Bizzeti; E. D. Bloom; I. Brock; K. Brockm̈ller; R. Cabenda; A. Cartacci; M. Cavalli-Sforza; R. Clare; A. Compagnucci; G. Conforto; S. Cooper; R. Cowan; D. Coyne; G. Drews; A. Engler; K. Fairfield; G. Folger; A. Fridman; J. Gaiser; D. Gelphman; G. Glaser; G. Godfrey; F. H. Heimlich; R. Hofstadter
The effect onГee of applying different prescriptions for radiative corrections is discussed. We also measureR, the ratio of non-resonant hadronic cross section to the Born cross section of μ pair production, at c.m. energyW=9.39 GeV to beR=3.48±0.04±0.16.
Physical Review D | 1987
D. Antreasyan; H. W. Bartels; D. Besset; C. Bieler; J. K. Bienlein; A. Bizzeti; E. D. Bloom; I. Brock; K. Brockmüller; R. Cabenda; A. Cartacci; M. Cavalli-Sforza; R. Clare; G. Conforto; S. Cooper; R. Cowan; D. Coyne; G. Drews; C. Edwards; A. Engler; K. Fairfield; G. Folger; A. Fridman; J. Gaiser; D. Gelphman; G. Glaser; G. Godfrey; F. H. Heimlich; R. Hofstadter; J. Irion
AbstractThe Crystal Ball detector has been used at the DORIS II storage ring at DESY to study the reactionγγ→π0π0π0 in theπ0π0π0 invariant mass range from 850 MeV/c2 to 2600 MeV/c2. An enhancement around 1750 MeV/c2 is attributed to theπ2(1670) resonance. The observedπ0π0 invariant mass distribution and theπ0 angular distributions are consistent with those expected for the decay chainπ2→π0f2(1270)→π0π0π0. From our measurements we find the following resonance parameters: two photon partial width
