Cross sections of 7\*7\* collisions are presented and diffractive contributions axe studied. Interactions of quasi real and highly virtual photons axe considered. The Regge parameterization of Donnachie and Landshoff describes the cross section behavior of quasi real processes whereas BFKL Pomeron c
An experimental study of γγ → hadrons at LEP
✍ Scribed by D. Buskulic; I. De Bonis; D. Decamp; P. Ghez; C. Goy; J.-P. Lees; M.-N. Minard; B. Pietrzyk; F. Ariztizabal; P. Comas; J.M. Crespo; M. Delfino; I. Efthymiopoulos; E. Fernandez; M. Fernandez-Bosman; V. Gaitan; L1. Garrido; T. Mattison; A. Pacheco; C. Padilla; A. Pascual; D. Creanza; M. de Palma; A. Farilla; G. Iaselli; G. Maggi; S. Natali; S. Nuzzo; M. Quattomini; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; Y. Chai; H. Hu; D. Huang; X. Huang; J. Lin; T. Wang; Y. Xie; D. Xu; R. Xu; J. Zhang; L. Zhang; W. Zhao; E. Blucher; G. Bonvicini; J. Bourdreau; D. Casper; H. Drevermann; R.W. Forty; G. Ganis; C. Gay; R. Hagelberg; J. Harvey; J. Hilgart; R. Jacobsen; B. Jost; J. Lnobloch; I. Lehraus; T. Lohse; M. Maggi; C. Markou; M. Martinez; P. Mato; H. Meinhard; A. Minten; A. Miotto; R. Miquel; H.-G. Moser; P. Palazzi; J.R. Pater; J.A. Perlas; J.-F. Pusztaszeri; F. Ranjard; G. Redlinger; L. Rolandi; J. Rothberg; T. Ruan; M. Saich; D. Schlatter; M. Schmelling; F. Sefkow; W. Tejessy; I.R. Tomalin; R. Veenhof; H. Wachsmuth; S. Wasserbaech; W. Wiedenmann; T. Wildish; W. Witzeling; J. Wotschack; Z. Ajaltouni; F. Badaud; M. Bardadin-Otwinowski; R. El Fellous; A. Falvard; P. Gay; C. Guicheney; P. Henrad; J. Jousset; B. Michael; J.-C. Montret; D. Pallin; P. Perret; R. Podlyski; J. Proriol; F. Prulhière; F. Saadi; T. Fearnly; J.B. Hansen; J.D. Hansen; J.R. Hansen; P.H. Hansen; R. Mo∅llerud; B.S. Nilsson; A. Kyriakis; E. Simopoulou; I. Siotis; A. Vayaki; K. Zachariadou; J. Badier; A. Blondel; G. Bonneaud; J.C. Brient; G. Fouque; S. Orteu; A. Rougè; M. Rumpf; R. Tanaka; M. Verderi; H. Videau; D.J. Candlin; M.I. Parsons; E. Veitch; E. Focardi; L. Moneta; G. Parrini; M. Corden; C. Georgiopoulos; M. Ikeda; D. Levinthal; A. Antonelli; R. Baldini; G. Bologna; F. Bossi; P. Campana; G. Capon; F. Cerutti; V. Chiarelle; B. D'Ettorre-Piazzoli; G. Felici; P. Laurelli; G. Mannocchi; F. Murtas; G.P. Murtas; L. Passalacqua; M. Pepe-Altarelli; P. Picchi;
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 723 KB
- Volume
- 313
- Category
- Article
- ISSN
- 0370-2693
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The inclusive production of D\*\* mesons in two-photon collisions is measured with the ALEPH detector at e+e-centre-of-mass energies from 183 GeV to 209 GeV. A total of 360 i 27 D\*' meson events are observed from an integrated luminosity of 699 pb-'. Cont$>tions from direct and single-resolved proc