J. M. Scarr
University of Hamburg
4 Papers
5 Citations
J. M. Scarr is an academic researcher from University of Hamburg. The author has contributed to research in topics: Quantum chromodynamics & Hadron. The author has an hindex of 4, co-authored 4 publications.
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Papers
A study of two-photon production of two-body final states with invariant mass greater than 2.0 GeV
Ch. Berger,H. Genzel,R. Grigull,W. Lackas,Frank Raupach,Wolfgang Wagner,A. Klovning,E. Lillestöl,M. Olsen,H. Ackermann,G. Alexander,Gideon Bella,J. Bürger,L. Criegee,A. Eskreys,G. Franke,Ch. Gerke,G. Knies,E. Lehmann,U. Michelsen,K. H. Pape,H.D. Reich,J. M. Scarr,B. Stella,U. Timm,G. G. Winter,S. T. Xue,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,V. Hepp,H. Kapitza,B. Koppitz,B. Lewendel,W. Lührsen,R. van Staa,H. Spitzer,C. Y. Chang,R. G. Glasser,R. G. Kellogg,K. Lau,Stephen Maxfield,R. O. Polvado,B. Sechi-Zorn,J. A. Skard,Andris Skuja,A. J. Tylka,G. E. Welch,G. T. Zorn,A. Bäcker,Fernando Barreiro,Stephanie Brandt,K. Derikum,Claus Grupen,H. J. Meyer,B. Neumann,M. Rost,K. Stupperich,G. Zech,H. J. Daum,H. Meyer,O. Meyer,D. Schmidt +63 more
TL;DR: In this paper, the electron, muon, and charged-hadron pair production rates in two-phonon interactions for invariant masses above 2.0 GeV were measured.
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Energy dependence of jet measures in e + e − annihilation
Ch. Berger,H. Genzel,R. Grigull,W. Lackas,Frank Raupach,Wolfgang Wagner,A. Klovning,E. Lillestöl,H. Ackermann,G. Alexander,Gideon Bella,J. Bürger,L. Criegee,A. Eskreys,G. Franke,Ch. Gerke,G. Knies,E. Lehmann,U. Michelsen,K. H. Pape,H.D. Reich,J. M. Scarr,B. Stella,U. Timm,G. G. Winter,S. T. Xue,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,V. Hepp,H. Kapitza,B. Koppitz,B. Lewendel,W. Lührsen,R. van Staa,H. Spitzer,C. Y. Chang,R. G. Glasser,Richard G Kellogg,K. H. Lau,R. O. Polvado,B. Sechi-Zorn,J. A.J. Skard,Andris Skuja,G. E. Welch,G. T. Zorn,A. Bäcker,Fernando Barreiro,Stephanie Brandt,K. Derikum,Claus Grupen,H. J. Meyer,B. Neumann,M. Rost,K. Stupperich,G. Zech,H. J. Daum,H. Meyer,O. Meyer,D. Schmidt +60 more
TL;DR: In this paper, the jet character of the hadronic final states produced ine+e− annihilations is studied in terms of jet measures such as thrust, sphericity, jet opening angle and jet masses, in the energy range 7.7 to 31.6 GeV.
Inclusive K0 production in e+e− annihilation for 9.3<√s< 31.6 GeV
Ch. Berger,H. Genzel,R. Grigull,W. Lackas,Frank Raupach,A. Klovning,E. Lillestöl,J. A. Skard,H. Ackermann,G. Alexander,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,W. Wagner,G. G. Winter,W. Zimmermann,O. Achterberg,Volker Blobel,L. Boesten,V. Hepp,H. Kapitza,B. Koppitz,B. Lewendel,W. Lührsen,R. van Staa,H. Spitzer,C. Y. Chang,R. G. Glasser,R. G. Kellogg,K. Lau,R. O. Polvado,B. Sechi-Zorn,Andris Skuja,G. E. Welch,G. T. Zorn,A. Bäcker,Fernando Barreiro,Stephanie Brandt,K. Derikum,Claus Grupen,H. J. Meyer,B. Neumann,M. Rost,G. Zech,H. J. Daum,H. Meyer,O. Meyer,M. Rössler,D. Schmidt,K. Wacker +61 more
TL;DR: In this paper, the K s 0 production in e + e − annihilation at mean center-of-mass energies of 9.4, 12.0 and 30 GeV was investigated.
First measurement of the photon structure function F2
Ch. Berger,H. Genzel,R. Grigull,W. Lackas,Frank Raupach,Wolfgang Wagner,A. Klovning,E. Lillestöl,J. A. Skard,H. Ackermann,G. Alexander,Gideon 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,Volker Blobel,L. Boesten,V. Hepp,H. Kapitza,B. Koppitz,B. Lewendel,W. Lührsen,R. van Staa,H. Spitzer,C. Y. Chang,R. G. Glasser,R. G. Kellogg,K. Lau,R. O. Polvado,B. Sechi-Zorn,Andris Skuja,G. E. Welch,G. T. Zorn,A. Bäcker,Fernando Barreiro,S. Brandt,K. Derikum,Claus Grupen,H. J. Meyer,B. Neumann,M. Rost,G. Zech,H. J. Daum,H. Meyer,O. Meyer,M. Rössler,D. Schmidt +61 more
TL;DR: In this paper, the point-like component of the photon was found to be dominant in photon scattering at momentum transfer. But the results were expressed in terms of photon structure function F 2 and were compared with QCD predictions and hadronic models of photon.