T
T. N. Ranga Swamy
Researcher at University of Hamburg
Publications - 13
Citations - 514
T. N. Ranga Swamy is an academic researcher from University of Hamburg. The author has contributed to research in topics: Annihilation & Hadron. The author has an hindex of 10, co-authored 13 publications receiving 506 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
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.
Journal ArticleDOI
The total hadronic cross section for e + e - annihilation between 3.1 and 4.8 GeV center of mass energy
Joerg Burmester,L. Criegee,H. C. Dehne,K. Derikum,R. Devenish,J. D. Fox,G. Franke,G. Flügge,Ch. Gerke,G. Horlitz,Th. Kahl,G. Knies,M. Rössler,S. Wolff,R. Schmitz,T. N. Ranga Swamy,U. Timm,H. D. Wahl,P. Waloschek,G. G. Winter,W. Zimmermann,Volker Blobel,H. Jensing,B. Koppitz,E. Lohrmann,A. Bäcker,J. Bürger,Claus Grupen,M. Rost,H. Meyer,K. Wacker +30 more
TL;DR: In this article, the total cross section for e+e− annihilation into hadrons was measured using the solenoidal magnetic detector PLUTO, and the results were presented for center of mass energies between 3.6 and 4.8 GeV.
Journal ArticleDOI
Lepton and hadron pair production in two-photon reactions
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,U. Michelsen,K. H. Pape,H.D. Reich,M. Scarr,B. Stella,T. N. Ranga Swamy,U. Timm,W. Wagner,P. Waloschek,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. H. Lau,R. O. Polvado,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 +69 more
TL;DR: In this paper, the authors measured the production of charged particle pairs in e + e − initiated two-photon reactions and showed that the observed rates and invariant mass spectra agree with expectations from QED if a resonant π + π − production at the f 0 mass is added.
Journal ArticleDOI
Search for a “top” threshold in hadronic e+e− annihilation at energies between 22 and 31.6 GeV
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. 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 presented results on e+e− annihilation into hadrons at c.m. energies between 22 and 31.6 GeV. The data were accumulated with the PLUTO detector at PETRA.