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A measurement of the gluon splitting rate into c(c)over-bar pairs in hadronic Z decays
Authors :
Heister, A Schael, S Barate, R Bruneliere, R De Bonis, I Decamp, D Goy, C Jezequel, S Lees, Jp Martin, F Merle, E Minard, Mn Pietrzyk, B Trocme, B Bravo, S Casado, Mp Chmeissani, A Crespo, Jm Fernandez, E Fernandez Bosman, A Garrido, L Martinez, M Pacheco, A Ruiz, H Colaleo, A Creanza, D De Filippis, N de Palma, M Iaselli, G Maggi, G Maggi, M Nuzzo, S Ranieri, A Raso, G Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Tricomi, Alessia Rita Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Abbaneo, D Barklow, T Buchmuller, O Cattaneo, M Cerutti, F Clerbaux, B Drevermann, H Forty, Rw Frank, M Gianotti, F Hansen, Jb Harvey, J Hutchcroft, De Janot, P Jost, B Kado, M Mato, P Moutoussi, A Ranjard, F Rolandi, L Schlatter, D Sguazzoni, G Tejessy, W Teubert, F Valassi, A Videau, I Badaud, F Dessagne, S Falvard, A Fayolle, D Gay, P Jousset, J Michel, B Monteil, S Pallin, D Pascolo, Jm Perret, P Hansen, Jd Hansen, Jr Hansen, Ph Kraan, A Nilsson, Bs Kyriakis, A Markou, C Simopoulou, E Vayaki, A Zachariadou, K Blondel, A Brient, Jc Machefert, F Rouge, A Swynghedauw, M Tanaka, R Videau, H Ciulli, V Focardi, E Parrini, G Antonelli, A Antonelli, M Bencivenni, G Bossi, F Capon, G Chiarella, V Laurelli, P Mannocchi, G Murtas, Gp Passalacqua, L Kennedy, J Lynch, Jg Negus, P O'Shea, V Thompson, As Wasserbaech, S Cavanaugh, R Dhamotharan, S Geweniger, C Hanke, P Hepp, V Kluge, Ee Leibenguth, G Putzer, A Stenzel, H Tittel, K Wunsch, M Beuselinck, R Cameron, W Davies, G Dornan, Pj Girone, M Hill, Rd Marinelli, N Nowell, J Rutherford, Sa Sedgbeer, Jk Thompson, Jc White, R Ghete, Vm Girtler, P Kneringer, E Kuhn, D Rudolph, G Bouhova Thacker, E Bowdery, Ck Clarke, Dp Ellis, G Finch, Aj Foster, F Hughes, G Jones, Rwl Pearson, Mr Robertson, Na Smizanska, M van der Aa, O Delaere, C Lemaitre, V Blumenschein, U Holldorfer, F Jakobs, K Kayser, F Kleinknecht, K Muller, As Renk, B Sander, Hg Schmeling, S Wachsmuth, H Zeitnitz, C Ziegler, T Bonissent, A Coyle, P Curtil, C Ealet, A Fouchez, D Payre, P Tilquin, A Ragusa, F David, A Dietl, H Ganis, G Huttmann, K Lutjens, G Manner, W Moser, Hg Settles, R Villegas, M Wolf, G Boucrot, J Callot, O Davier, M Duflot, L Grivaz, Jf Heusse, P Jacholkowska, A Serin, L Veillet, Jj Azzurri, P Bagliesi, G Boccali, T Foa, L Giammanco, A Giassi, A Ligabue, F Messineo, A Palla, F Sanguinetti, G Sciaba, A Spagnolo, P Tenchini, R Venturi, A Verdini, Pg Awunor, O Blair, Ga Cowan, G Garcia Bellido, A Green, Mg Jones, Lt Medcalf, T Misiejuk, A Strong, Ja Teixeira Dias, P Clifft, Rw Edgecock, Tr Norton, Pr Tomalin, Ir Ward, Jj Bloch Devaux, B Boumediene, D Colas, P Fabbro, B Lancon, E Lemaire, Mc Locci, E Perez, P Rander, J Tuchming, B Vallage, B Konstantinidis, N Litke, Am Taylor, G Booth, Cn Cartwright, S Combley, F Hodgson, Pn Lehto, M Thompson, Lf Bohrer, A Brandt, S Grupen, C Hess, J Ngac, A Prange, G Borean, C Giannini, G He, H Putz, J Rothberg, J Armstrong, Sr Berkelman, K Cranmer, K Ferguson, Dps Gao, Y Gonzalez, S Hayes, Oj Hu, H Jin, S Kile, J Mcnamara, Pa Nielsen, J Pan, Yb von Wimmersperg Toeller JH Wiedenmann, W Wu, J Wu, Sl Wu, X Zobernig, G Dissertori, G. Heister, A Schael, S Barate, R Bruneliere, R De Bonis, I Decamp, D Goy, C Jezequel, S Lees, Jp Martin, F Merle, E Minard, Mn Pietrzyk, B Trocme, B Bravo, S Casado, Mp Chmeissani, A Crespo, Jm Fernandez, E Fernandez Bosman, A Garrido, L Martinez, M Pacheco, A Ruiz, H Colaleo, A Creanza, D De Filippis, N de Palma, M Iaselli, G Maggi, G Maggi, M Nuzzo, S Ranieri, A Raso, G Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Tricomi, A Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Abbaneo, D Barklow, T Buchmuller, O Cattaneo, M Cerutti, F Clerbaux, B Drevermann, H Forty, Rw Frank, M Gianotti, F Hansen, Jb Harvey, J Hutchcroft, De Janot, P Jost, B Kado, M Mato, P Moutoussi, A Ranjard, F Rolandi, Luigi Schlatter, D Sguazzoni, G Tejessy, W Teubert, F Valassi, A Videau, I Badaud, F Dessagne, S Falvard, A Fayolle, D Gay, P Jousset, J Michel, B Monteil, S Pallin, D Pascolo, Jm Perret, P Hansen, Jd Hansen, Jr Hansen, Ph Kraan, A Nilsson, B Kyriakis, A Markou, C Simopoulou, E Vayaki, A Zachariadou, K Blondel, A Brient, Jc Machefert, F Rouge, A Swynghedauw, M Tanaka, R Videau, H Ciulli, V Focardi, E Parrini, G Antonelli, A Antonelli, M Bencivenni, G Bossi, F Capon, G Chiarella, V Laurelli, P Mannocchi, G Murtas, Gp Passalacqua, L Kennedy, J Lynch, Jg Negus, P O'Shea, V Thompson, A Wasserbaech, S Cavanaugh, R Dhamotharan, S Geweniger, C Hanke, P Hepp, V Kluge, Ee Leibenguth, G Putzer, A Stenzel, H Tittel, K Wunsch, M Beuselinck, R Cameron, W Davies, G Dornan, Pj Girone, M Hill, Rd Marinelli, N Nowell, J Rutherford, Sa Sedgbeer, Jk Thompson, Jc White, R Ghete, Vm Girtler, P Kneringer, E Kuhn, D Rudolph, G Bouhova Thacker, E Bowdery, Ck Clarke, Dp Ellis, G Finch, Aj Foster, F Hughes, G Jones, Rwl Pearson, Mr Robertson, Na Smizanska, M van der Aa, O Delaere, C Lemaitre, V Blumenschein, U Holldorfer, F Jakobs, K Kayser, F Kleinknecht, K Muller, A Renk, B Sander, Hg Schmeling, S Wachsmuth, H Zeitnitz, C Ziegler, T Bonissent, A Coyle, P Curtil, C Ealet, A Fouchez, D Payre, P Tilquin, A Ragusa, F David, A Dietl, H Ganis, G Huttmann, K Lutjens, G Manner, W Moser, Hg Settles, R Villegas, M Wolf, G Boucrot, J Callot, O Davier, M Duflot, L Grivaz, Jf Heusse, P Jacholkowska, A Serin, L Veillet, Jj Azzurri, P Bagliesi, G Boccali, T Foa, L Giammanco, A Giassi, A Ligabue, Franco Messineo, A Palla, F Sanguinetti, G Sciaba, A Spagnolo, P Tenchini, R Venturi, A Verdini, Pg Awunor, O Blair, Ga Cowan, G Garcia Bellido, A Green, Mg Jones, Lt Medcalf, T Misiejuk, A Strong, Ja Teixeira Dias, P Clifft, Rw Edgecock, Tr Norton, Pr Tomalin, Ir Ward, Jj Bloch Devaux, B Boumediene, D Colas, P Fabbro, B Lancon, E Lemaire, Mc Locci, E Perez, P Rander, J Tuchming, B Vallage, B Konstantinidis, N Litke, Am Taylor, G Booth, Cn Cartwright, S Combley, F Hodgson, Pn Lehto, M Thompson, Lf Bohrer, A Brandt, S Grupen, C Hess, J Ngac, A Prange, G Borean, C Giannini, G He, H Putz, J Rothberg, J Armstrong, Sr Berkelman, K Cranmer, K Ferguson, Dp Gao, Y Gonzalez, S Hayes, Oj Hu, H Jin, S Kile, J Mcnamara, Pa Nielsen, J Pan, Yb von Wimmersperg Toeller, Jh Wiedenmann, W Wu, J Wu, Sl Wu, X Zobernig, G Dissertori, G.
Publication Year :
2003
Abstract
The rate of gluon splitting into cc pairs in hadronic Z decays is measured using the data sample collected by ALEPH from 1991 to 1995. The selection is based on the identification of leptons (electrons and muons) originating from semileptonic charm decays, and on the topological properties of signal events. The result derived from the selected sample is g(cc) = (3.26 +/- 0.23(stat) +/- 0.42(syst))%. (C) 2003 Published by Elsevier Science B.V.
Details
Database :
OpenAIRE
Accession number :
edsair.dedup.wf.001..122c0510a0d7f1b9d1f46fea604ae3df