H
H. Kapitza
Researcher at University of Hamburg
Publications - 52
Citations - 1597
H. Kapitza is an academic researcher from University of Hamburg. The author has contributed to research in topics: Annihilation & Quantum chromodynamics. The author has an hindex of 22, co-authored 52 publications receiving 1577 citations.
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Journal ArticleDOI
Evidence for Gluon Bremsstrahlung in e+ e- Annihilations at High-Energies
Ch. Berger,H. Genzel,R. Grigull,W. Lackas,Frank Raupach,A. Klovning,E. Lillestöl,E. Lillethun,J. A. Skard,H. Ackermann,G. Alexander,Fernando Barreiro,J. Bürger,L. Criegee,H. C. Dehne,R. Devenish,A. Eskreys,G. Flügge,G. Franke,W. Gabriel,Ch. Gerke,G. Knies,E. Lehmann,H.D. Mertiens,K. H. Pape,H.D. Reich,B. Stella,T. N. Ranga Swamy,U. Timm,W. Wagner,P. Waloschek,G. G. Winter,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,H. Kapitza,B. Koppitz,W. Lührsen,R. Maschuw,R. van Staa,H. Spitzer,C. Y. Chang,R. G. Glasser,R. G. Kellogg,K. Lau,B. Sechi-Zorn,Andris Skuja,G. E. Welch,G. T. Zorn,A. Bäcker,Stephanie Brandt,K. Derikum,A. Diekmann,Claus Grupen,H. J. Meyer,B. Neumann,M. Rost,G. Zech,T. Azemoon,H. J. Daum,H. Meyer,O. Meyer,M. Rössler,D. Schmidt,K. Wacker +65 more
TL;DR: In this article, the authors report 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 quarkparton model and with first-order QCD predictions including gluon emission (qqg jets).
Journal ArticleDOI
Observation of a Narrow Resonance Formed in e+ e- Annihilation at 9.46-GeV
Ch. Berger,W. Lackas,Frank Raupach,Wolfgang Wagner,Gideon Alexander,L. Criegee,H. C. Dehne,K. Derikum,R. Devenish,G. Flügge,G. Franke,Ch. Gerke,E. Hackmack,P. Harms,G. Horlitz,Th. Kahl,G. Knies,E. Lehmann,B. Neumann,R. L. Thompson,U. Timm,P. Waloschek,G. G. Winter,S. Wolff,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,H. Daumann,A. F. Garfinkel,H. Kapitza,B. Koppitz,W. Lührsen,R. Maschuw,H. Spitzer,R. van Staa,G. Wetjen,A. Bäcker,J. Burger,Claus Grupen,H. J. Meyer,G. Zech,H. J. Daum,H. Meyer,O. Meyer,M. Rössler,K. Wacker +46 more
TL;DR: In this article, an experiment using the PLUTO detector has observed the formation of a narrow, high mass, resonance in e+e− annihilations at the DORIS storage ring.
Journal ArticleDOI
A study of jets in electron positron annihilation into hadrons in the energy range 3.1 to 9.5 GeV
Ch. Berger,W. Lackas,Frank Raupach,Wolfgang Wagner,G. Alexander,L. Criegee,H. C. Dehne,K. Derikum,R. Devenish,G. Flügge,G. Franke,Ch. Gerke,E. Hackmack,P. Harms,G. Horlitz,Th. Kahl,G. Knies,E. Lehmann,B. Neumann,R. L. Thompson,U. Timm,P. Waloschek,G. G. Winter,S. Wolff,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,H. Daumann,A. F. Garfinkel,H. Kapitza,B. Koppitz,W. Lührsen,R. Mashuw,H. Spitzer,R. van Staa,G. Wetjen,A. Bäcker,S. Brandt,J. Burger,Claus Grupen,H. J. Meyer,G. Zech,H. J. Daum,H. Meyer,O. Meyer,M. Rössler,K. Wacker +47 more
TL;DR: In this paper, an analysis of data taken with the detector PLUTO and the DORIS storage rings was performed to obtain evidence for jet structure in e + e − annihilation with hadrons.
Journal ArticleDOI
First observation of hadron production in e + e - collisions at 13 and 17 GeV CMS energy with the pluto detector at petra Pluto Collaboration
Ch. Berger,H. Genzel,R. Grigull,W. Lackas,Frank Raupach,Wolfgang Wagner,A. Klovning,E. Lillestöl,E. Lillethun,J. A. Skard,H. Ackermann,G. Alexander,Fernando Barreiro,J. Bürger,L. Criegee,H. C. Dehne,R. Devenish,G. Flügge,G. Franke,W. Gabriel,Ch. Gerke,G. Horlitz,G. Knies,E. Lehmann,H.D. Mertiens,B. Neumann,K. H. Pape,H.D. Reich,B. Stella,U. Timm,P. Waloschek,G. G. Winter,S. Wolff,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,H. Kapitza,B. Koppitz,W. Lührsen,R. Maschuw,R. van Staa,H. Spitzer,C. Y. Chang,R. G. Glasser,R. G. Kellog,K. Lau,B. Sechi-Zorn,Andris Skuja,G. E. Welch,G. T. Zorn,A. Bäcker,Stephanie Brandt,K. Derikum,Claus Grupen,H. J. Meyer,M. Rost,G. Zech,T. Azemoon,H. J. Daum,H. Meyer,O. Meyer,M. Rössler,D. Schmidt,K. Wacker +64 more
TL;DR: In this article, the results from the magnetic detector PLUTO at the new e + e − storage ring PETRA are shown, where the ratio R of the cross section for hadron production to that for μ-pair production has been measured to be R = 5.0 ± 0.5 at 13 GeV and 4.3 ± 0.5 at 17 GeV.
Journal ArticleDOI
Multiplicity Distributions in e+ e- Annihilations at PETRA Energies
Ch. Berger,H. Genzel,R. Grigull,W. Lackas,Frank Raupach,A. Klovning,E. Lillestöl,E. Lillethun,J. A. Skard,H. Ackermann,Gideon Alexander,Fernando Barreiro,J. Bürger,L. Criegee,H. C. Dehne,R.C.E. Devenish,A. Eskreys,Günter Flügge,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,T. N. Ranga Swamy,U. Timm,Wolfgang Wagner,P. Waloschek,G. G. Winter,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,V. Hepp,H. Kapitza,B. Koppitz,B. Lewendel,W. Lühraen,R. van Staa,H. Spitzer,C. Y. Chang,R. G. Glasser,R. G. Kellog,K. Lau,R. O. Polvado,B. Sechi-Zorn,Andris Skuja,G. E. Welch,G. T. Zorn,A. Bäcker,Stephanie Brandt,K. Derikum,Claus Grupen,H. J. Meyer,B. Neumann,M. Rost,G. Zech,T. Azemoon,H. J. Daum,H. Meyer,O. Meyer,M. Rössler,D. Schmidt,K. Wacker +68 more
TL;DR: In this paper, the average charged multiplicity has an energy dependence much stronger than ln s and similar to that reported for pp collisions, and the dispersion Dch for e+e− and pp interactions at the same center of mass energy is significantly larger than in pp collisions.