H. Spitzer
University of Hamburg
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Publication
Featured researches published by H. Spitzer.
Physics Letters B | 1979
Christoph Berger; R. Maschuw; H.D. Mertiens; U. Timm; G.G. Winter; H. Meyer; H.C. Dehne; H. Genzel; Ch. Gerke; C. Y. Chang; L. Criegee; C. Grupen; H.D. Reich; K.H. Pape; J. Bürger; E. Lehmann; V. Blobel; G. Welch; A. Diekmann; K. Derikum; F. Barreiro; E. Lillestöl; W. Wagner; A. Bäcker; H. Spitzer; R. van Staa; R. Devenish; K.H. Lau; G. Flügge; W. Lührsen
Abstract We report our results on the reactions e+e− → hadrons in the energy range 13 ⩽ Ecm ⩽ 31.6 GeV and compare them with qq jets described in the quark-parton model and with first-order QCD predictions including gluon emission (qqg jets). At high energies the observed features of one-sided jet broadening, sea-gull effect and planar events with a three-jet structure represent a gross violation of the parton model without gluons and find a most natural interpretation if gluon bremsstrahlung is included.
Nuclear Physics | 1987
Ch. Berger; H. Genzel; W. Lackas; J. Pielorz; F. Raupach; W. Wagner; A. Klovning; E. Lillestöl; J. Bürger; L. Criegee; A. Deuter; F. Ferrarotto; G. Franke; M. Gaspero; Ch. Gerke; G. Knies; B. Lewendel; J. Meyer; U. Michelsen; K.H. Pape; B. Stella; U. Timm; G.G. Winter; M. Zachara; W. Zimmermann; P.J. Bussey; S.L. Cartwright; J.B. Dainton; D. Hendry; B.T. King
Abstract We present a measurement of the hadronic structure function F2γ(x, Q2) of the photon in the Q2 range from 10 to 100 GeV2. Data were taken with the PLUTO detector at the e+e- storage ring PETRA. This measurement and previous PLUTO measurements in the Q2 range of 1.5 to 16 GeV2 are compared with higher order QCD calculations. The structure function is consistent with the predicted log Q2 behaviour when charm contributions are subtracted. The x dependence can be well described for 0.1 Λ MS = 183 + 65/ −40( stat. ) + 46/ −36( sys. ) MeV for the QCD scale parameter.
Physics Letters B | 1981
Ch. Berger; H. Genzel; R. Grigull; W. Lackas; F. Raupach; W. Wagner; A. Klovning; E. Lillestöl; J. A. J. Skard; H. Ackermann; G. Alexander; G. Bella; J. Bürger; L. Criegee; A. Eskreys; G. Franke; W. Gabriel; Ch. Gerke; G. Knies; E. Lehmann; H.D. Mertiens; U. Michelsen; K.H. Pape; H.D. Reich; J.M. Scarr; B. Stella; U. Timm; G.G. Winter; W. Zimmermann; O. Achterberg
Abstract Using data taken at PETRA we present results on deep inelastic electron photon scattering at momentum transfers 1 Q 2 2 . The results are expressed in terms of the photon structure function F 2 and are compared with QCD predictions and “hadronic” models of the photon. The pointlike component of the photon is found to be dominant.
Physics Letters B | 1981
Ch. Berger; H. Genzel; R. Grigull; W. Lackas; F. Raupach; A. Klovning; E. Lillestöl; J. A. J. Skard; H. Ackermann; J. Bürger; L. Criegee; H.C. Dehne; A. Eskreys; G. Franke; W. Gabriel; Ch. Gerke; G. Knies; E. Lehmann; H.D. Mertiens; U. Michelsen; K.H. Pape; H.D. Reich; M. Scarr; B. Stella; U. Timm; W. Wagner; P. Waloschek; G.G. Winter; W. Zimmermann; O. Achterberg
Abstract We present new high statistics data on hadron production in photon-photon reactions. The data are analyzed in terms of an electron-photon scattering formalism. The dependence of the total cross section of Q 2 , the four-momentum transfer squared of the scattered electron, and on the mass W of the hadronic system is investigated. The data are compared to predictions from Vector-Meson Dominance and the quark model.
European Physical Journal C | 1992
H.-J. Behrend; L. Criegee; J. H. Field; G. Franke; H. Jung; J. Meyer; J. H. Peters; O. Podobrin; V. Schröder; G.G. Winter; Peter Bussey; A. Campbell; D. G. Hendry; S. J. Lumsdon; Ian O Skillicorn; J. Ahme; V. Blobel; M. Feindt; H. Fenner; J. Harjes; J.H. Kohne; H. Spitzer; T. Weihrich; W.D. Apel; J. Engler; G. Flügge; D.C. Fries; J. Fuster; K. Gamerdinger; P. Grosse-Wiesmann
European Physical Journal C | 1992
H.-J. Behrend; L. Criegee; J. H. Field; G. Franke; H. Jung; J. Meyer; J. H. Peters; O. Podobrin; V. Schröder; G.G. Winter; Peter Bussey; A. Campbell; D. G. Hendry; S. J. Lumsdon; Ian O Skillicorn; J. Ahme; V. Blobel; M. Feindt; H. Fenner; J. Harjes; J.H. Kohne; H. Spitzer; T. Weihrich; W.D. Apel; J. Engler; G. Flügge; D.C. Fries; J. Fuster; K. Gamerdinger; P. Grosse-Wiesmann
Physics Letters B | 1991
H.-J. Behrend; L. Criegee; J. H. Field; G. Franke; H. Jung; J. Meyer; O. Podobrin; V. Schröder; G.G. Winter; Peter Bussey; A. Campbell; D. G. Hendry; S. J. Lumsdon; Ian O Skillicorn; J. Ahme; V. Blobel; M. Feindt; H. Fenner; J. Harjes; J.H. Kohne; J. H. Peters; H. Spitzer; T. Weihrich; W.D. Apel; J. Engler; G. Flügge; D.C. Fries; J. Fuster; K. Gamerdinger; P. Grosse-Weismann
European Physical Journal C | 1991
H.-J. Behrend; L. Criegee; J. H. Field; G. Franke; H. Jung; J. Meyer; O. Podobrin; V. Schröder; G.G. Winter; Peter Bussey; A. Campbell; D. G. Hendry; S. J. Lumsdon; Ian O Skillicorn; J. Ahme; V. Blobel; W. Brehm; M. Feindt; H. Fenner; J. Harjes; J.H. Kohne; J. H. Peters; H. Spitzer; W.D. Apel; J. Engler; G. Flügge; D.C. Fries; J. Fuster; P. Gabriel; K. Gamerdinger
European Physical Journal C | 1990
H.-J. Behrend; L. Criegee; J. H. Field; G. Franke; H. Jung; J. Meyer; O. Podobrin; V. Schröder; G.G. Winter; Peter Bussey; A. Campbell; D. G. Hendry; S. J. Lumsdon; Ian O Skillicorn; J. Ahme; V. Blobel; W. Brehm; M. Feind; H. Fenner; J. Harjes; J.H. Kohne; J. H. Peters; H. Spitzer; W.D. Apel; J. Engler; G. Flügge; D.C. Fries; J. Fuster; P. Gabriel; K. Gamerdinger
European Physical Journal C | 1990
H.-J. Behrend; L. Criegee; J. H. Field; G. Franke; H. Jung; J. Meyer; O. Podobrin; V. Schröder; G.G. Winter; Peter Bussey; A. Campbell; D. G. Hendry; S. J. Lumsdon; Ian O Skillicorn; J. Ahme; V. Blobel; W. Brehm; M. Feind; H. Fenner; J. Harjes; J.H. Kohne; J. H. Peters; H. Spitzer; W.D. Apel; J. Engler; G. Flügge; D.C. Fries; J. Fuster; P. Gabriel; K. Gamerdinger
