H
H. Matsumura
Researcher at Heidelberg University
Publications - 63
Citations - 1774
H. Matsumura is an academic researcher from Heidelberg University. The author has contributed to research in topics: Annihilation & Electron–positron annihilation. The author has an hindex of 22, co-authored 57 publications receiving 1736 citations.
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Journal ArticleDOI
The OPAL detector at LEP
K Ahmet,A L Fletcher,A Sato,D. E. Klem,M Mast,R L Amstrong,P. Jovanovic,J. G. Layter,R Payne,M Lautscham,Britt Anderson,Andris Skuja,A. A. Carter,F Verkerk,Gideon Alexander,M. Sproston,John Hobbs,G. J. Barker,R. Rusniak,T. W. Pritchard,M Morpurgo,James M. Hill,S. R. Hou,R. G. Glasser,K Miels,C. K. Hargrove,D. C. Colley,M Lamblin,Gibson,B. J. Saunders,G. W. Wilson,M Ferrari,M. Regimbald,P. Rapp,R. A. Sansum,Harold Nguyen,S. A. Wotton,G.T.J. Arnison,R Losserand-Madoux,F L Desrosier,K. Karner,G Prodon,D Micolon,B Cornet,P. Igo-Kemenes,E. Mauer,H C Weber,Rene Brun,Chikara Fukunaga,B. Gandois,N. C. Wood,N. Zwang,George Lafferty,P. Ashton,D. J.P. Dumas,P. Wicht,A. Shapira,M.M.B. Lasota,R.J. Staley,P. G. Murphy,J. Thiebes,P Gorce,J. E. Conboy,J. Zimmer,D. J. Miller,James Pilcher,A. M. Smith,A. Michelini,H. Hartmann,D. J. White,M. Shoa,H. J. Burckhart,A Therond,J. D. Gillies,D. Menszner,J O Peterson,Tohru Takeshita,R. Humbert,T. J. Smith,A. A. Macbeth,A. J.P. O'Dowd,H. M. Fischer,Wolfram Dietrich Zeuner,F. K. Loebinger,D. L. Rees,Alessandro Montanari,I. P. Duerdoth,Tatsuo Kawamoto,Kiyotomo Kawagoe,John H. Schwarz,Stefano Marcellini,C. Beard,G. Knop,I. J. Bloodworth,L Briot,D. Hatzifotiadou,O. Runolfsson,D. Hochman,R. W. L. Jones,M. W. Redmond,M Fillion,P. Steinberg,A. Possoz,P Kobe,L Marradi,Dave Charlton,P. Lennert,T. Tsukamoto,R. Kolpin,R. Yaari,P von Walker,D. E. Plane,Phillip Allport,B. Lorazo,J. Goldberg,G. Giacomelli,Lorne Levinson,Masatoshi Koshiba,E. J. Spreadbury,T. J. McMahon,K Scheuring,G. Mikenberg,Ehud Duchovni,C. J. Virtue,W. Seidl,Mitsuaki Nozaki,R. Milborrow,G Canova,Allen Mincer,C. P. Ward,M. Uldry,B. Wünsch,B G Duff,M Cyvoct,J. Ludwig,A. Rollnik,M. T. French,B. W. Kennedy,Michael Dittmar,D. C. Imrie,N. Lupu,D. M. Strom,R. Cranfield,M Z Akraway,J. M. Roney,G. Maringer,I. Cohen,G. Crone,J. Gascon,A. D. Schaile,T. R. Wyatt,M. Webel,S. W. O'Neale,S. W. Gensler,P. Routenburg,M. S. Dixit,Kelby Anderson,R. Bard,B. Parkinson,D. Voillat,G. Tysarczyk,Otmar Biebel,F Rochner,Aharon Levy,R. G. Kellogg,C. M. Roach,E Poli,R. J. Homer,K. Riles,G. Linser,R.M. Matson,A Renoux,P.S. Rozmarynowski,Roger Barlow,C. Y. Chang,J. Raab,A. H. Ball,P. M. Watkins,P. Scharff-Hansen,M Marquet,C. Wahl,B. Holl,A Charalambous,F.F. Heymann,J. Waterhouse,S. Schreiber,John Allison,F Pouyat,D. R. Ward,Paolo Capiluppi,J. Hagemann,P Rada,J. C. Hill,A. C. McPherson,A. Buijs,C. Milstène,M. Imori,T. Kobayashi,Gunter Quast,Gideon Bella,H. Yamashita,M. Hansroul,J. R. Batley,J. P. Martin,H. Takeda,A Lefrancois,G. T. Zorn,H Wenninger,D. Van den plas,P. W. Jeffreys,T Goiffon,L. Denton,Y. Totsuka,K. W. Bell,Joachim Heintze,F. X. Gentit,R Lorenzi,G Pozzo,Shlomo Dado,T. Zawistowski,M. Couch,B. C. Shen,S Tuffanelli,M. J. Losty,M.D. Jeffs,S Jaroslawski,F Massera,R. Hammarström,P. Leblanc,A. P. Wagner,O. W. Davies,P. M. Hattersley,D Lascols,J. Armitage,M. F. Turner,D M Sendall,P. Mättig,H Gao,L Biffoni,S. J. Hillier,James Pinfold,J. Ma,L. Godfrey,H. M. Bosch,G Gagnon,S. J. Pawley,R Stephenson,K. Zankel,E. Neuheimer,D. Joos,D. Duchesneau,M Guillot,W. R. Gibson,M. Beaulieu,A. Simon,S. Orito,W M Evans,Marcello Mannelli,P. Bock,F. S. Merritt,R J Shaw,S A Clark,H. von der Schmitt,Daniel Lellouch,P. Vande Vyvre,Peter R Hobson,J. A. Wilson,R. E. Hughes-Jones,J. R. Carter,A. M. Rossi,J. M. Lorah,K. Runge,M Chamot,J.L. Chevalley,H. Sanders,C. M. Hawkes,G Schmidlin,W. Glessing,J. W. Gary,H. Jeremie,Alan Watson,P. Farthouat,J.F. Connolly,L Baisin,M. Jimack,R. K. Carnegie,F Bourgeois,Sergo,A Eyting,N. I. Geddes,G. J. VanDalen,I. Wingerter,A Penton,A. Dieckmann,M. Weymann,A Duperloup,R. W. Springer,H El-Mamouni,T. Behnke,W N Stokes,Eilam Gross,L. Lessard,E. Jin,S. Gross,H. Wang,F. Beck,G Artusi,M. J. Goodrick,S Yamada,C. P. Howarth,Georges Azuelos,J.D. Colmer,G.L. Giles,M. W. Moss,Y Gal,H. J. Meyer,O. Ganel,B Langset,Claus Kleinwort,A. Weltin,John Hart,A Beer,S. Zylberajch,G. N. Patrick,D. Granite,Achim Müller,B Vuillerme,W. Gorn,Robert M Brown,P. S. Hinde,P. Le Du,M. M. Deninno,Norbert Wermes,J. Banks,M. Jobes,K H Souten,W. J. Murray,S. Weisz,R Shally,M. Hauschild,W. J. Larson,F. Lamarche,B Gaillard-Grenadier,J. Grunhaus,Makoto Minowa,Tetsuro Mashimo,B. P. O'Neill,Frans Meijers,W. Mohr,H. Matsumura,N. K. Watson,J. T.M. Chrin,K. Stephens,G. Yekutieli,G. Bavaria,P E Estabrooks,Mark Oreglia,T. P. Kokott,P Giudici,P.R. Goldey,R. D. Heuer,P Keyberd,O. Schaile,M D Rousseau,H. Kreutzmann,D. Karlen,M. Coupland,D Rybkowski,U. Maur,B. Nellen,Fabrizio Fabbri,I. D'Antone,C. N. P. Gee,F. G. Oakham,E. E. Elsen,Horst Breuker,L. Mazzone,H. Mes,U Seidler,R. Kowalewski,W.W. Miller,R. J. Hemingway,Peter Sherwood,Stephen Lloyd,J.A. Lidbury,G. M. Dallavalle,H. P. Borner,R. P. Middleton,G. Duckeck,L. Köpke,J. Kroll,W. Schappert,John Baines,G. P. Siroli,M Grossi +394 more
Journal ArticleDOI
Observation of planar three-jet events in e+e− annihilation and evidence for gluon bremsstrahlung
W. Bartel,T. Canzler,D. Cords,P. Dittmann,R. Eichler,R. Felst,D. Haidt,S. Kawabata,H. Krehbiel,B. Naroska,L. H. O'Neill,J. E. Olsson,P. Steffen,W. L. Yen,E. Elsen,M. Helm,A. Petersen,P. Warming,G. Weber,H. Drumm,J. Heintze,G. Heinzelmann,R. D. Heuer,J. von Krogh,P. Lennert,H. Matsumura,T. Nozaki,H. Rieseberg,A. Wagner,D.C. Darvill,F. Foster,Gareth Hughes,H. Wriedt,John Allison,J. Armitage,I. P. Duerdoth,J. F. Hassard,F. K. Loebinger,B. T. King,A. A. Macbeth,H. E. Mills,P. G. Murphy,Harrison Prosper,K. Stephens,D. Clarke,M. C. Goddard,R. Hedgecock,R. Marshall,G. F. Pearce,Masatoshi Imori,T. Kobayashi,Sachio Komamiya,M. Koshiba,Makoto Minowa,S. Orito,A. Sato,Takafumi Suda,H. Takeda,Y. Totsuka,Yosuke Watanabe,Shoichi Yamada,C. Yanagisawa +61 more
TL;DR: In this paper, the topological distribution of charged and neutral hadrons from the reaction e+e− → multihadrons is studied at √s of about 30 GeV, and an excess of planar events is observed at a rate which cannot be explained by statistical fluctuations in the standard two-jet process.
Journal ArticleDOI
Total cross section for hadron production by e+e− annihilation at petra energies
W. Bartel,T. Canzler,D. Cords,P. Dittmann,R. Eichler,R. Felst,E. Gadermann,D. Haidt,S. Kawabata,H. Krehbiel,B. Naroska,L. H. O'Neill,J. E. Olsson,P. Steffen,W. L. Yen,E. Elsen,M. Helm,A. Petersen,H. Riege,P. Warming,G. Weber,H. Drumm,W. Farr,J. Heintze,G. Heinzelmann,R. D. Heuer,J. von Krogh,P. Lennert,H. Matsumura,T. Nosaki,H. Rieseberg,A. Wagner,John Allison,J. Armitage,I. P. Duerdoth,F. K. Loebinger,A. A. Macbeth,H. E. Mills,D. Mercer,P. G. Murphy,Harrison Prosper,K. Stephens,D.C. Darvill,F. Foster,Gareth Hughes,H. Wriedt,D. Clarke,M. C. Goddard,R. Hedgecock,R. Marshall,G. F. Pearce,Masatoshi Imori,Tatsuo Kobayashi,Sachio Komamiya,M. Koshiba,Makoto Minowa,S. Orito,A. Sato,T. Suda,H. Takeda,Y. Totsuka,Yosuke Watanabe,Shoichi Yamada,C. Yanagisawa +63 more
TL;DR: In this article, the authors measured the total cross section in units of the point-like e+e− → μ+μ- cross section at the highest PETRA energies and found that the observed average multiplicity, together with existing low energy data, indicate a rapid increase in multiplicity with increasing energy.
Journal ArticleDOI
Experimental study of jets in electron-positron annihilation
W. Bartel,D. Cords,P. Dittmann,R. Eichler,R. Felst,D. Haidt,H. Krehbiel,B. Naroska,L. H. O'Neill,P. Steffen,H. Wenninger,Y. Zhang,E. Elsen,M. Helm,A. Petersen,P. Warming,G. Weber,S. Bethke,H. Drumm,J. Heintze,G. Heinzelmann,K. H. Hellenbrand,R. D. Heuer,J. von Krogh,P. Lennert,S. Kawabata,H. Matsumura,T. Nozaki,J. Olsson,H. Rieseberg,A. Wagner,A. Bell,F. Foster,Gareth Hughes,H. Wriedt,John Allison,A. H. Ball,G. Bamford,Roger Barlow,C. Bowdery,I. P. Duerdoth,J. F. Hassard,B. T. King,F. K. Loebinger,A. A. Macbeth,Hugh McCann,H. E. Mills,P. G. Murphy,Harrison Prosper,K. Stephens,D. Clarke,M. C. Goddard,R. Marshall,G. F. Pearce,Masatoshi Imori,T. Kobayashi,Sachio Komamiya,M. Koshiba,Makoto Minowa,Mitsuaki Nozaki,S. Orito,A. Sato,Takafumi Suda,H. Takeda,Y. Totsuka,Yosuke Watanabe,Shoichi Yamada,C. Yanagisawa +67 more
TL;DR: In this article, data on hadron production by e+e−−-annihilation at c.m. energies between 30 GeV and 36 GeV are presented and compared with two models both based on first-order QCD but using different schemes for the fragmentation of quarks and gluons into hadrons.
Journal ArticleDOI
A measurement of the electroweak induced charge asymmetry in e + e - →bb̄
W. Bartel,L. Becker,Christopher Bowdery,D. Cords,R. Felst,D. Haidt,H. Junge,G. Knies,H. Krehbiel,P. Laurikainen,R. Meinke,B. Naroska,J. E. Olsson,E. Pietarinen,D. Schmidt,P. Steffen,M. Zachara,G. Dietrich,E. Elsen,G. Heinzelmann,H. Kado,M. Kuhlen,T. Mashimo,K. Meier,A. Petersen,U. Schneekloth,G. Weber,K. Ambrus,S. Bethke,A. Dieckmann,J. Heintze,K. H. Hellenbrand,R. D. Heuer,S. Komamiya,J. von Krogh,P. Lennert,H. Matsumura,H. Rieseberg,J. Spitzer,A. Wagner,A. J. Finch,F. Foster,Gareth Hughes,T. Nozaki,J. M. Nye,John Allison,John Baines,A. H. Ball,Roger Barlow,J. T.M. Chrin,I. P. Duerdoth,T. Greenshaw,P. Hill,F. K. Loebinger,A. A. Macbeth,Hugh McCann,H. E. Mills,P. G. Murphy,K. Stephens,P. Warming,R. G. Glasser,B. Sechi-Zorn,J. A.J. Skard,Stephen Robert Wagner,G. T. Zorn,S. L. Cartwright,D. Clarke,R. Marshall,Robin Middleton,J. B. Whittaker,Junichi Kanzaki,T. Kawamoto,T. Kobayashi,M. Koshiba,Makoto Minowa,Mitsuaki Nozaki,S. Orito,A. Sato,H. Takeda,Tohru Takeshita,Y. Totsuka,Shoichi Yamada +81 more
TL;DR: The forward-backward charge asymmetry for the process e + e − → b b → μ ± + hadrons has been measured using the JADE detector at PETRA.