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 D meson events are observed from an integrated luminosity of . Contributions from direct and single-resolved processes are separated using the ratio of the transverse momentum of the D to the visible invariant mass Wvis of the event. Differential cross sections of D production as functions of and the pseudorapidity are measured in the range and . They are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D cross section to the total charm cross section, based on the Pythia Monte Carlo program, yields .

Measurement of the inclusive D*+- production in gamma gamma collisions at LEP / A. Heister, S. Schael, R. Barate, R. Bruneliere, I. De Bonis, D. Decamp, C. Goy, S. Jezequel, J.P. Lees, F. Martin, E. Merle, M.N. Minard, B. Pietrzyk, B. Trocme’, S. Bravo, M.P. Casado, M. Chmeissani, J.M. Crespo, E. Fernandez, M. Fernandez Bosman, L. Garrido, M. Martinez, A. Pacheco, H. Ruiz, A. Colaleo, D. Creanza, N. De Filippis, M. De Palma, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, P. Azzurri, T. Barklow, O. Buchmueller, M. Cattaneo, F. Cerutti, B. Clerbaux, H. Drevermann, R.W. Forty, M. Frank, F. Gianotti, J.B. Hansen, J. Harvey, D.E. Hutchcroft, P. Janot, B. Jost, M. Kado, P. Mato, A. Moutoussi, F. Ranjard, L. Rolandi, D. Schlatter, G. Sguazzoni, W. Tejessy, F. Teubert, A. Valassi, I. Videau, J.J. Ward, F. Badaud, S. Dessagne, A. Falvard, D. Fayolle, P. Gay, J. Jousset, B. Michel, S. Monteil, D. Pallin, J.M. Pascolo, P. Perret, J.D. Hansen, J.R. Hansen, P.H. Hansen, A. Kraan, B.S. Nilsson, A. Kyriakis, C. Markou, E. Simopoulou, A. Vayaki, K. Zachariadou, A. Blondel, J.-C. Brient, F. Machefert, A. Rouge’, M. Swynghedauw, R. Tanaka, H. Videau, V. Ciulli, E. Focardi, G. Parrini, A. Antonelli, M. Antonelli, G. Bencivenni, F. Bossi, G. Capon, V. Chiarella, P. Laurelli, G. Mannocchi, G.P. Murtas, L. Passalacqua, J. Kennedy, J.G. Lynch, P. Negus, V. O’Shea, A.S. Thompson, S. Wasserbaech R. Cavanaugh, S. Dhamotharan, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, G. Leibenguth, A. Putzer, H. Stenzel, K. Tittel, M. Wunsch, R. Beuselinck, W. Cameron, G. Davies, P.J. Dornan, M. Girone, R.D. Hill, N. Marinelli, J. Nowell, S.A. Rutherford, J.K. Sedgbeer, J.C. Thompson, R. White, V.M. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, E. Bouhova Thacker, C.K. Bowdery, D.P. Clarke, G. Ellis, A.J. Finch, F. Foster, G. Hughes, R.W.L. Jones, M.R. Pearson, N.A. Robertson, M. Smizanska, O. van der Aa, C. Delaere, V. Lemaitre, U. Blumenschein, F. Hoelldorfer, K. Jakobs, F. Kayser, K. Kleinknecht, A.S. Muller, B. Renk, H.G. Sander, S. Schmeling, H. Wachsmuth, C. Zeitnitz, T. Ziegler, A. Bonissent, P. Coyle, C. Curtil, A. Ealet, D. Fouchez, P. Payre, A. Tilquin, F. Ragusa, A. David, H. Dietl, G. Ganis, K. Huttmann, G. Lutjens, W. Manner, H.G. Moser, R. Settles, G. Wolf, J. Boucrot, O. Callot, M. Davier, L. Duflot, J.F. Grivaz, P. Heusse, A. Jacholkowska, L. Serin, J.J. Veillet, C. Yuan, G. Bagliesi, T. Boccali, L. Foa’, A. Giammanco, A. Giassi, F. Ligabue, A. Messineo, F. Palla, G. Sanguinetti, A. Sciaba’, R. Tenchini, A. Venturi, P.G. Verdini, O. Awunor, G.A. Blair, G. Cowan, A. Garcia Bellido, M.G. Green, L.T. Jones, T. Medcalf, A. Misiejuk, J.A. Strong, P. Teixeira Dias, R.W. Clifft, T.R. Edgecock, P.R. Norton, I.R. Tomalin, B. Bloch Devaux, D. Boumediene, P. Colas, B. Fabbro, E. Lancon, M.C. Lemaire, E. Locci, P. Perez, J. Rander, B. Tuchming, B. Vallage, N. Konstantinidis, A.M. Litke, G. Taylor, C.N. Booth, S. Cartwright, F. Combley, P.N. Hodgson, M. Lehto, L.F. Thompson, A. Bohrer, S. Brandt, C. Grupen, J. Hess, A. Ngac, G. Prange, U. Sieler, C. Borean, G. Giannini, H. He, J. Putz, J. Rothberg, S.R. Armstrong, K. Berkelman, K. Cranmer, D.P.S. Ferguson, Y. Gao, S. Gonzalez, O.J. Hayes, H. Hu, S. Jin, J. Kile, P.A. McNamara III, J. Nielsen, Y.B. Pan, J.H. von Wimmersperg Toeller, W. Wiedenmann, J. Wu, Sau Lan Wu, X. Wu, G. Zobernig, G. Dissertori. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 28:4(2003 May 13), pp. 437-449. [10.1140/epjc/s2003-01201-x]

Measurement of the inclusive D*+- production in gamma gamma collisions at LEP

F. Ragusa;
2003

Abstract

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 D meson events are observed from an integrated luminosity of . Contributions from direct and single-resolved processes are separated using the ratio of the transverse momentum of the D to the visible invariant mass Wvis of the event. Differential cross sections of D production as functions of and the pseudorapidity are measured in the range and . They are compared to next-to-leading order (NLO) perturbative QCD calculations. The extrapolation of the integrated visible D cross section to the total charm cross section, based on the Pythia Monte Carlo program, yields .
Elementary particle physics ; LEP ; standard model ; heavy flavours
Settore FIS/01 - Fisica Sperimentale
13-mag-2003
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/39656
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 5
social impact