Journal ArticleDOI
Determination of αs from a measurement of the direct photon spectrum in Γ(1S) decays
H. Albrecht,A.A. Andam,U. Binder,P. Böckmann,R. Gläser,G. Harder,A. Nippe,M. Schäfer,W. Schmidt-Parzefall,H. Schröder,Holger Schulz,R. Wurth,A. Yagil,J. P. Donker,A. Drescher,D. Kamp,Hermann Kolanoski,U. Matthiesen,H. Scheck,B. Spaan,J. Spengler,D. Wegener,J. C. Gabriel,T. Ruf,K. R. Schubert,J. Stiewe,K. Strahl,Roland Waldi,S. Weseler,K. W. Edwards,William R. Frisken,D. J. Gilkinson,Douglas Gingrich,H. Kapitza,P. C. H. Kim,Robert K. Kutschke,D. B. Macfarlane,J. A. McKenna,K. W. McLean,A. W. Nilsson,R. S. Orr,P. Padley,J. A. Parsons,P. M. Patel,J. D. Prentice,H. C. J. Seywerd,J. D. Swain,G. Tsipolitis,T. S. Yoon,J. C. Yun,R. Ammar,D. Coppage,R. Davis,S. Kanekal,N. Kwak,B. Boštjančič,M. Pleško,Leif J. Jönsson,Anton Babaev,M. Danilov,B. Fominykh,A. Golutvin,I. V. Gorelov,V. Lubimov,V. Matveev,V. Nagovitsin,V. Ryltsov,A. Semenov,V. Shevchenko,V. Soloshenko,V. Tchistilin,I. Tichomirov,Yu. Zaitsev,R. Childers,C. W. Darden,Y. Oku +75 more
TLDR
In this article, the ARGUS detector at the DORIS II e + e − storage ring has measured direct photons from the decay???(1 S )→ γgg.About:
This article is published in Physics Letters B.The article was published on 1987-12-17. It has received 18 citations till now.read more
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Journal ArticleDOI
Studies of quantum chromodynamics with the ALEPH detector
R. Barate,D. Buskulic,D. Decamp,Philippe Ghez,C. Goy,J. P. Lees,Arnaud Lucotte,M-N Minard,J.Y. Nief,Philippe Odier,B. Pietrzyk,Maria Pilar Casado,M. Chmeissani,P. Comas,J. M. Crespo,Manuel Delfino,E. Fernandez,M. Fernandez-Bosman,Ll. Garrido,A. Juste,M. I. Martínez,S. Orteu,C. Padilla,Inkyu Park,A. Pascual,J. A. Perlas,Imma Riu,Federico Sanchez,F. Teubert,Anna Colaleo,Donato Creanza,M. De Palma,G. Gelao,Giuseppe Iaselli,Giorgio Maggi,Mario Maggi,Nancy Marinelli,Salvatore Nuzzo,A. Ranieri,Giuseppe Raso,F. Ruggieri,Giovanna Selvaggi,Lucia Silvestris,P. Tempesta,Alessia Tricomi,G. Zito,X. Huang,J. Lin,Q. Ouyang,Ting-Chi Wang,Yuehong Xie,R. Xu,S. Xue,Jie Zhang,L. Zhang,W. Zhao,Duccio Abbaneo,R. Alemany,A.O. Bazarko,P.G. Bright-Thomas,Marco Cattaneo,Fabio Cerutti,H. Drevermann,R. W. Forty,Markus Frank,R. Hagelberg,J. Harvey,Patrick Janot,B. Jost,Emmerich Kneringer,J. Knobloch,I. Lehraus,Thomas Lohse,G. Lutters,P. Mato,A. Minten,Ramon Miquel,Ll.M. Mir,Lorenzo Moneta,T. Oest,A. Pacheco,J. F. Pusztaszeri,F. Ranjard,P. Rensing,G. Rizzo,L. Rolandi,D. Schlatter,M. Schmelling,Michael Schmitt,O. Schneider,W. Tejessy,Ian R Tomalin,Andrea Venturi,H. Wachsmuth,A. Wagner,Ziad Ajaltouni,A. Barres,C. Boyer,Alain Falvard,C. Ferdi,C. Guicheney,P. Henrard,J. Jousset,B. Michel,S. Monteil,Jean-Claude Montret,Dominique Pallin,P. Perret,F. Podlyski,Joseph Proriol,Philippe Rosnet,J. M. Rossignol,T. Fearnley,Jørgen Beck Hansen,J.D. Hansen,J.R. Hansen,P. H. Hansen,B. S. Nilsson,B. Rensch,A. Wäänänen,Georgios Daskalakis,Aristotelis Kyriakis,C. Markou,E. Simopoulou,I. Siotis,A. Vayaki,K. Zachariadou,A. Blondel,G. R. Bonneaud,J. C. Brient,P. Bourdon,A. Rougé,M. Rumpf,A. Valassi,M. Verderi,H. Videau,D.J. Candlin,M.I. Parsons,Ettore Focardi,G. Parrini,M. Corden,C. Georgiopoulos,D. E. Jaffe,A. Antonelli,G. Bencivenni,G. Bologna,F. Bossi,P. Campana,G. Capon,D. Casper,V. Chiarella,G. Felici,Paolo Laurelli,G. Mannocchi,F. Murtas,G. P. Murtas,L. Passalacqua,M. Pepe-Altarelli,L. Curtis,S. J. Dorris,A. W. Halley,I. G. Knowles,J. G. Lynch,Val O'Shea,C. Raine,P. Reeves,J. M. Scarr,Kevin M. Smith,P. Teixeira-Dias,A. S. Thompson,Evelyn Thomson,F. Thomson,R. M. Turnbull,U. Becker,O. Buchmüller,C. Geweniger,G. Graefe,P. Hanke,G. Hansper,H. Hepp,V. Hepp,E. E. Kluge,A. Putzer,M.G. Schmidt,J. Sommer,Hasko Stenzel,K. Tittel,S. Werner,M. Wunsch,R. Beuselinck,D. M. Binnie,W. Cameron,P. J. Dornan,M. Girone,S. Goodsir,Eb Martin,A. Moutoussi,Jordan Nash,J. K. Sedgbeer,A. M. Stacey,M.D. Williams,G. Dissertori,A. Hörtnagl,D. Kuhn,Louis Marié,G. Rudolph,A. P. Betteridge,C. K. Bowdery,P. Colrain,G. Crawford,A. J. Finch,F. Foster,G. Hughes,T. J. Sloan,M. I. Williams,T. Barczewski,A. Galla,I. Giehl,A. M. Greene,C. Hoffmann,Karl Jakobs,Konrad Kleinknecht,Gunter Quast,B. Renk,E. Rohne,H. G. Sander,H. Schmidt,F. Steeg,P. van Gemmeren,Christian Zeitnitz,J. J. Aubert,C. Benchouk,A. Bonissent,G. Bujosa,David Calvet,J. Carr,P. Coyle,Cristinel Diaconu,F. Etienne,Nikolaos Konstantinidis,Olivier Leroy,P. Payre,David Rousseau,Mossadek Talby,A. Sadouki,M. Thulasidas,K. Trabelsi,M. Aleppo,F. Ragusa,R. Berlich,W. Blum,V. Büscher,H. Dietl,F. Dydak,G. Ganis,C. Gotzhein,Hubert Kroha,G. Lütjens,G. Lutz,W. Männer,H. G. Moser,Robert Richter,A. Rosado-Schlosser,S. Schael,R. Settles,H. Seywerd,R. St. Denis,Werner Wiedenmann,Gy. Wolf,J. Boucrot,O. Callot,Shaomin Chen,Young-Il Choi,A. Cordier,M. Davier,Laurent Duflot,Jean-Francois Grivaz,Ph Heusse,A. Hocker,A. Jacholkowska,M. Jacquet,D. W. Kim,F. Le Diberder,J. Lefrançois,A. M. Lutz,I. Nikolic,H.J. Park,M. H. Schune,Stefan Simion,J. J. Veillet,I. Videau,Dirk Zerwas,Paolo Azzurri,Giuseppe Bagliesi,G. Batignani,S. Bettarini,C. Bozzi,G. Calderini,M. Carpinelli,Maria Agnese Ciocci,Vitaliano Ciulli,Roberto Dell'Orso,R. Fantechi,I. Ferrante,Lorenzo Foà,F. Forti,Alessandro Giassi,Mario Giorgi,A. Gregorio,Franco Ligabue,A. Lusiani,P. S. Marrocchesi,Alberto Messineo,Fabrizio Palla,G. Sanguinetti,Andrea Sciabà,Paolo Spagnolo,J. Steinberger,Roberto Tenchini,Guido Tonelli,C. Vannini,Piero Giorgio Verdini,G.A. Blair,L. M. Bryant,J.T. Chambers,Yang Gao,M. G. Green,T. Medcalf,P. Perrodo,J. A. Strong,J.H. von Wimmersperg-Toeller,V. Bertin,D. R. Botterill,R. W. Clifft,T. R. Edgecock,Stephen Haywood,P. Maley,P. R. Norton,J.C. Thompson,A.E. Wright,B. Bloch-Devaux,P. Colas,S. Emery,W. Kozanecki,Eric Lancon,M. C. Lemaire,Elizabeth Locci,Pablo Rodriguez Perez,John Rander,J. F. Renardy,A. Roussarie,J. P. Schuller,J. Schwindling,A. Trabelsi,B. Vallage,S.N. Black,J.H. Dann,R. P. Johnson,H.Y. Kim,Alan Litke,M. A. McNeil,G. B. Taylor,A. Beddall,C. N. Booth,R. Boswell,Christopher Brew,S. L. Cartwright,F. Combley,Ian Dawson,M.S. Kelly,M H. Lehto,W. M. Newton,J. Reeve,L. F. Thompson,A. Böhrer,S. Brandt,G. A. Cowan,E. Feigl,Claus Grupen,J. Minguet-Rodriguez,F. Rivera,P. Saraiva,L. Smolik,F. Stephan,M. Apollonio,L. Bosisio,R. Delia Marina,G. Giannini,B. Gobbo,G. Musolino,J. Rothberg,S. Wasserbaech,S.R. Armstrong,Peter Elmer,Z. Y. Feng,D.P.S. Ferguson,Y. S. Gao,S. Gonzalez,J. Grahl,T.C. Greening,O.J. Hayes,H. Hu,P. A. McNamara,Jane Nachtman,W. Orejudos,Y. B. Pan,Y. Saadi,I.J. Scott,J. Walsh,Sau Lan Wu,Xin Wu,J.M. Yamartino,M. Zheng,G. Zobernig +413 more
TL;DR: In this article, the ALEPH detector at LEP1 has been used for detailed studies of both perturbative and non-perturbative aspects of strong interactions to be carried out using hadronic Z and tau decays.
Journal ArticleDOI
Total cross sections for heavy flavour production in hadronic collisions and QCD
TL;DR: In this paper, the total cross sections for top, bottom and charm production in hadronic collisions at energies of practical interest are studied using a recent complete calculation of the next-to-leading QCD corrections.
Journal ArticleDOI
QCD multipole expansion and hadronic transitions in heavy quarkonium systems
TL;DR: In this paper, the developments of the multipole expansion approach in quantum chromodynamics and its applications to hadronic transitions and some radiative decays of heavy quarkonia are reviewed.
Journal ArticleDOI
A Phenomenological analysis of gluon mass effects in inclusive radiative decays of the J / psi and Upsilon
TL;DR: In this paper, the shapes of the inclusive photon spectra in the processes of the processes $\Jp \to \gamma X$ and $\Up \to ǫ X$ have been analyzed using all available experimental data.
Journal ArticleDOI
Inclusive production of K*(892),ρ 0 , and ω(783) mesons in the ϒ energy region
H. Albrecht,H. Ehrlichmann,Thomas Hamacher,R. P. Hofmann,T. Kirchhoff,A. Nau,Sebastian Nowak,H. Schröder,Holger Schulz,M. Walter,R. Wurth,C. Hast,H. Kapitza,Hermann Kolanoski,A. Kosche,A. Lange,A. Lindner,Rainer Mankel,M. Schieber,T. Siegmund,B. Spaan,H. Thurn,D. Töpfer,D. Wegener,M. Bittner,P. Eckstein,Manfred Paulini,K. Reim,H. Wegener,R. Eckmann,R. Mundt,T. Oest,R. Reiner,W. Schmidt-Parzefall,J. Stiewe,S. Werner,K. Ehret,Werner Hofmann,A. Hüpper,S. Khan,K. T. Knöpfle,M. Seeger,J. Spengler,Dave Britton,C. E. K. Charlesworth,K. W. Edwards,E. R.F. Hvatt,Peter Krieger,D. B. MacFarlane,P. M. Patel,J. D. Prentice,P. R. B. Saull,K. Tzamariudaki,R. G. Van de Water,T. S. Yoon,D. Reßing,M. Schmidtler,Michael Schneider,K. R. Schubert,K. Strahl,R. Waldi,S. Weseler,G. Kernel,P. Križan,E. Križnič,T. Podobnik,T. Živko,Vladislav Balagura,Ivan Belyaev,S. Chechelnitsky,Mikhail Danilov,A. Droutskoy,Yuri Gershtein,A. Golutvin,I. Korolko,G. Kostina,D. O. Litvintsev,V. Lubimov,P. Pakhlov,Sergey Semenov,A. Snizhko,V. Soloshenko,I. Tichomirov,Yu. Zaitsev +83 more
TL;DR: In this article, the ARGUS detector has been used to study the production of quark and gluonic Υ(1S) decays and ϕ meson and baryon fragmentation.
References
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Journal ArticleDOI
On the Elimination of Scale Ambiguities in Perturbative Quantum Chromodynamics
TL;DR: In this article, the authors present a new method for resolving the scheme-scale ambiguity that has plagued perturbative analyses in quantum chromodynamics and other gauge theories, which reduces to the standard criterion that only vacuum-polarization insertions contribute to the effective coupling constant.
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Three photon annihilation of an electron - positron pair
A. Ore,J. L. Powell +1 more
TL;DR: In this article, an electron-positron pair accompanied by the emission of three photons is discussed for the case of small relative velocity of the two particles and the energy spectrum of the photons is derived and the cross section for the process is calculated.
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Initial State Radiation for e+ e- Annihilation Into Jets
Frits A. Berends,R. Kleiss +1 more
TL;DR: In this paper, a method is described which enables one to take into account initial state radiation to the process e+e−− → hadrons, and treats exactly both the photon emission and the angular distribution of the produced particles, once this angular distribution is given for the non-bremsstrahlung case.
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Asymptotic freedom beyond the leading order
TL;DR: In this article, the authors make a quantitative analysis of the full g2 interaction corrections to the leading Q2 dependence of νW2 at x ⩾ 0.4, as given by an asymptotically free gauge theory.