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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