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N. A. Downie
Researcher at Imperial College London
Publications - 12
Citations - 832
N. A. Downie is an academic researcher from Imperial College London. The author has contributed to research in topics: Annihilation & Electron–positron annihilation. The author has an hindex of 11, co-authored 12 publications receiving 824 citations.
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Journal ArticleDOI
Evidence for planar events in e+e− annihilation at high energies
R. Brandelik,W. Braunschweig,K. Gather,V. Kadansky,K. Lübelsmeyer,P. Mättig,H. U. Martyn,G. Peise,J. Rimkus,H. G. Sander,D.W. Schmitz,A. Schultz von Dratzig,D. Trines,W. Wallraff,H. Boerner,H. M. Fischer,H. Hartmann,E. Hilger,Walter Dr. Hillen,G. Knop,W. Korbach,P. Leu,B. Löhr,F. Roth,W. Rühmer,R. Wedemeyer,Norbert Wermes,M. Wollstadt,R. Buhring,R. Fohrmann,D. Heyland,H. Hultschig,P. Joos,W. Koch,U. Kötz,H. Kowalski,A. Ladage,D. Lüke,H. L. Lynch,G. Mikenberg,D. Notz,J. Pyrlik,R. Riethmüller,M. Schliwa,P. Söding,B. H. Wiik,Gy. Wolf,M. Holder,G. Poelz,J. Ringel,O. Römer,R. Rüsch,P. Schmüser,D. M. Binnie,P. J. Dornan,N. A. Downie,D. A. Garbutt,W. G. Jones,Stephen Lloyd,D. Pandoulas,A. Pevsner,J. K. Sedgebeer,S. Yarker,C. Youngman,Roger Barlow,Rj Cashmore,John Illingworth,M. Ogg,Gl Salmon,K. W. Bell,W. Chinowsky,B. Foster,John Hart,J. Proudfoot,D. R. Quarrie,D. H. Saxon,P. L. Woodworth,Y. Eisenberg,U. Karshon,E. Kogan,D. Revel,E.E. Ronat,A. Shapira,John Freeman,P. Lecomte,T. Meyer,Lan. Wu Sau,Georg Zobernig +87 more
TL;DR: Hadron jets produced in e+e− annihilation between 13 GeV and 31.6 GeV in c.m. energy at PETRA are analyzed in this article, showing that the broadening of the jets is not uniform in azimuthal angle around the quark direction but tends to yield planar events with large and growing transverse momenta in the plane and smaller transverse momentsa normal to the plane.
Journal ArticleDOI
Properties of Hadron Final States in e+ e- Annihilation at 13-GeV and 17-GeV Center-Of-Mass Energies
R. Brandelik,W. Braunschweig,K. Gather,B. Jaax,Kadansky,K. Lübelsmeyer,H. U. Martyn,G. Peise,J. Rimkus,H. G. Sander,D.W. Schmitz,A. Schultz von Dratzig,D. Trines,W. Wallraff,H. Boerner,H. M. Fischer,H. Hartmann,E. Hilger,Walter Dr. Hillen,G. Knop,W. Korbach,B. Löhr,F. Roth,W. Rühmer,R. Wedemeyer,Norbert Wermes,M. Wollstadt,R. Buhring,D. Heyland,H. Hultschig,P. Joos,W. Koch,U. Kötz,H. Kowalski,A. Ladage,D. Lüke,H. L. Lynch,G. Mikenberg,D. Notz,J. Pyrlik,R. Riethmüller,M. Schliwa,P. Söding,B. H. Wiik,Gy. Wolf,R. Fohrmann,G. Poelz,J. Ringel,O. Römer,R. Rüsch,P. Schmüser,D. M. Binnie,P. J. Dornan,N. A. Downie,D. A. Garbutt,W. G. Jones,Stephen Lloyd,D. Pandoulas,C. Youngman,Roger Barlow,Rj Cashmore,John Illingworth,M. Ogg,Gl Salmon,K. W. Bell,W. Chinowsky,B. Foster,John Hart,J. Proudfoot,Quarrie,D. H. Saxon,P. L. Woodworth,Y. Eisenberg,U. Karshon,E. Kogan,D. Revel,E.E. Ronat,A. Shapira,John Freeman,P. Lecomte,T. Meyer,Sau Lan Wu,Georg Zobernig +82 more
TL;DR: In this article, the TASSO detector was used to detect e+e-hadrons at C.M. energies of 13 GeV and 17 GeV at PETRA.
Journal ArticleDOI
Rapid Growth of Charged Particle Multiplicity in High-Energy e+ e- Annihilations
R. Brandelik,W. Braunschweig,K. Gather,Kadansky,K. Lübelsmeyer,P. Mättig,Hu Martyn,G. Peise,J. Rimkus,H. G. Sander,D.W. Schmitz,AS von Dratzig,D. Trines,W. Wallraff,H. Boerner,H. M. Fischer,H. Hartmann,E. Hilger,Walter Dr. Hillen,G. Knop,P. Leu,B. Löhr,R. Wedemeyer,N Wermes,M. Wollstadt,D. G. Cassel,D. Heyland,H. Hultschig,P. Joos,W. Koch,P. Koehler,U. Kötz,H. Kowalski,A. Ladage,D. Lüke,H. L. Lynch,G. Mikenberg,D. Notz,J. Pyrlik,R. Riethmüller,M. Schliwa,P. Söding,B. H. Wiik,Gy. Wolf,R. Fohrmann,M. Holder,G. Poelz,J. Ringel,O. Römer,R. Rüsch,P. Schmüser,D. M. Binnie,P. J. Dornan,N. A. Downie,D. A. Garbutt,W. G. Jones,Stephen Lloyd,D. Pandoulas,A. Pevsner,J. Sedgbeer,S. Yarker,C. Youngman,Roger Barlow,Rj Cashmore,John Illingworth,M. Ogg,B. Roe,Gl Salmon,Kw Bell,W. Chinowsky,B. Foster,J. C. Hart,J. Proudfoot,Quarrie,D. H. Saxon,P. L. Woodworth,Y. Eisenberg,U. Karshon,D. Revel,E.E. Ronat,A. Shapira,John Freeman,P. Lecomte,T. Meyer,Lan. Wu Sau,G Zobernig +85 more
TL;DR: In this paper, the authors studied the effect of e+e- annihilation on particle multiplicity at high energy than at lower energies and found that the multiplicity grows faster at high energies than lower energies.
Journal ArticleDOI
Rho rho Production by Two Photon Scattering
R. Brandelik,W. Braunschweig,K. Gather,V. Kadansky,K. Lübelsmeyer,H. U. Martyn,G. Peise,J. Rimkus,H. G. Sander,D.W. Schmitz,A. Schultz von Dratzig,D. Trines,W. Wallraff,H. Boerner,H. M. Fischer,H. Hartmann,E. Hilger,Walter Dr. Hillen,G. Knop,L. Koepke,Hermann Kolanoski,P. Leu,B. Löhr,R. Wedemeyer,Norbert Wermes,M. Wollstadt,H. Burkhardt,D. G. Cassel,D. Heyland,H. Hultschig,P. Joos,W. Koch,P. Koehler,U. Kötz,H. Kowalski,A. Ladage,D. Lüke,H. L. Lynch,P. Mättig,G. Mikenberg,D. Notz,J. Pyrlik,R. Riethmüller,M. Schliwa,P. Söding,B. H. Wiik,Gy. Wolf,R. Fohrmann,M. Holder,G. Poelz,O. Römer,R. Rüsch,P. Schmüser,D. M. Binnie,P. J. Dornan,N. A. Downie,D. A. Garbutt,W. G. Jones,Stephen Lloyd,D. Pandoulas,J. K. Sedgbeer,S. Yarker,C. Youngman,Roger Barlow,I. C. Brock,Rj Cashmore,R.C.E. Devenish,P. Grossmann,John Illingworth,M. Ogg,B. Roe,Gl Salmon,T. R. Wyatt,K. W. Bell,B. Foster,John Hart,J. Proudfoot,D. R. Quarrie,D. H. Saxon,P. L. Woodworth,Ehud Duchovni,Y. Eisenberg,U. Karshon,D. Revel,E.E. Ronat,A. Shapira,John Freeman,P. Lecomte,T. Meyer,Sau Lan Wu,Georg Zobernig +90 more
Journal ArticleDOI
Comparison of e + e - annihilation with QCD and determination of the strong coupling constant
R. Brandelik,W. Braunschweig,K. Gather,V. Kadansky,K. Lübelsmeyer,P. Mättig,Hu Martyn,G. Peise,J. Rimkus,H. G. Sander,D.W. Schmitz,A. Schultz von Dratzig,D. Trines,W. Wallraff,H. Boerner,H. M. Fischer,H. Hartmann,E. Hilger,Walter Dr. Hillen,L. Koepke,G. Knop,P. Leu,B. Löhr,R. Wedemeyer,N Wermes,M. Wollstadt,H. Burkhardt,D. G. Cassel,D. Heyland,H. Hultschig,P. Joos,W. Koch,P. Koehler,U. Kötz,H. Kowalski,A. Ladage,D. Lüke,H. L. Lynch,G. Mikenberg,D. Notz,J. Pyrlik,R. Riethmüller,M. Schliwa,P. Söding,B. H. Wiik,Gy. Wolf,R. Fohrmann,M. Holder,G. Poelz,O. Römer,R. Rüsch,P. Schmüser,D. M. Binnie,P. J. Dornan,N. A. Downie,D. A. Garbutt,W. G. Jones,Stephen Lloyd,D. Pandoulas,J. Sedgbeer,S. Yarker,C. Youngman,Roger Barlow,I. C. Brock,Rj Cashmore,R.C.E. Devenish,P. Grossmann,John Illingworth,M. Ogg,B. Roe,Gl Salmon,T. R. Wyatt,Kw Bell,B. Foster,J. C. Hart,J. Proudfoot,D. R. Quarrie,D. H. Saxon,P. L. Woodworth,Y. Eisenberg,U. Karshon,D. Revel,E.E. Ronat,A. Shapira,John Freeman,P. Lecomte,T. Meyer,Sau Lan Wu,G Zobernig +88 more
TL;DR: In this paper, the authors analyzed 1113 events of the reaction e+e− → hadrons at CM energies of 12 and 30 GeV in order to make a detailed comparison with QCD.