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Improved search for B-S(0)-(B)over-bar(S)(0) oscillations

Authors :
Heister, A
Schael, S
Barate, R
De Bonis, I
Decamp, D
Goy, C
Lees, Jp
Merle, E
Minard, Mn
Pietrzyk, B
Boix, G
Bravo, S
Casado, Mp
Chmeissani, M
Crespo, Jm
Fernandez, E
Fernandez Bosman, M
Garrido, L
Grauges, E
Martinez, W
Merino, G
Miquel, R
Mir, Lm
Pacheco, A
Ruiz, H
Colaleo, A
Creanza, D
de Palma, M
Iaselli, G
Maggi, G
Maggi, N
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
Azzurri, P
Buchmuller, O
Cattaneo, M
Cerutti, F
Clerbaux, B
Drevermann, H
Forty, Rw
Frank, T
Gianotti, F
Greening, Tc
Hansen, Jb
Harvey, J
Hutchcroft, De
Janot, P
Jost, B
Kado, M
Mato, P
Moutoussi, A
Ranjard, F
Rolandi, L
Schlatter, D
Schneider, O
Sguazzoni, G
Tejessy, W
Teubert, F
Valassi, A
Videau, I
Ward, J
Badaud, F
Falvard, A
Gay, P
Henrard, P
Jousset, J
Michel, B
Monteil, S
Montret, Jc
Pallin, D
Perret, P
Hansen, Jd
Hansen, Jr
Hansen, Ph
Nilsson, Bs
Kyriakis, A
Markou, C
Simopoulou, E
Vayaki, A
Zachariadou, K
Blondel, A
Bonneaud, G
Brient, Jc
Rouge, A
Rumpf, M
Swynghedauw, M
Verderi, M
Videau, H
Ciulli, V
Focardi, E
Parrini, G
Antonelli, A
Bencivenni, G
Bossi, F
Campana, P
Capon, G
Chiarella, V
Laurelli, P
Mannocchi, G
Murtas, F
Murtas, Gp
Passalacqua, L
Pepe Altarelli, M
Halley, A
Lynch, Jg
Negus, P
O'Shea, V
Thompson, As
Wasserbaech, S
Cavanaugh, R
Dhamotharan, S
Geweniger, C
Hanke, P
Hepp, V
Kluge, Ee
Putzer, A
Stenzel, H
Tittel, K
Wunsch, M
Beuselinck, R
Binnie, Dm
Cameron, W
Dornan, Pj
Girone, M
Marinelli, N
Sedgbeer, Jk
Thompson, Jc
Ghete, Vm
Girtler, P
Kneringer, E
Kuhn, D
Rudolph, G
Bouhova Thacker, E
Bowdery, Ck
Finch, Aj
Foster, F
Hughes, G
Jones, Rwl
Pearson, Mr
Robertson, Na
Jakobs, K
Kleinknecht, K
Quast, G
Renk, B
Sander, Hg
Wachsmuth, H
Zeitnitz, C
Bonissent, A
Coyle, P
Leroy, O
Payre, P
Rousseau, D
Talby, M
Ragusa, F
David, A
Dietl, H
Ganis, G
Huttmann, K
Lutjens, G
Manner, W
Moser, Hg
Settles, R
Wiedenmann, W
Wolf, G
Boucrot, J
Callot, O
Davier, M
Duflot, L
Grivaz, Jf
Heusse, P
Jacholkowska, A
Lefrancois, J
Veillet, Jj
Yuan, C
Bagliesi, G
Boccali, T
Foa, L
Giammanco, A
Giassi, A
Ligabue, F
Messineo, ALBERTO MARIA
Palla, F
Sanguinetti, G
Sciaba, A
Spagnola, P
Tenchini, R
Venturi, A
Verdini, Pg
Xie, Z
Blair, Ga
Cowan, G
Green, Mg
Medcalf, T
Misiejuk, A
Strong, Ja
Teixeira Dias, P
Clifft, Rw
Edgecock, Tr
Norton, Pr
Tomalin, Ir
Bloch Devaux, B
Colas, P
Emery, S
Kozanecki, W
Lancon, E
Lemaire, Mc
Locci, E
Perez, P
Rander, J
Renardy, Jf
Roussarie, A
Schuller, Jp
Schwindling, J
Trabelsi, A
Vallage, B
Konstantinidis, N
Litke, Am
Taylor, G
Booth, Cn
Cartwright, S
Combley, F
Lehto, M
Thompson, Lf
Affholderbach, K
Bohrer, A
Brandt, S
Grupen, C
Ngac, A
Prange, G
Sieler, U
Giannini, G
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
Wu, J
Wu, Sl
Wu, X
Zobernig, G
Dissertori, G.
Heister, A
Schael, S
Barate, R
De Bonis, I
Decamp, D
Goy, C
Lees, Jp
Merle, E
Minard, Mn
Pietrzyk, B
Boix, G
Bravo, S
Casado, Mp
Chmeissani, M
Crespo, Jm
Fernandez, E
Fernandez Bosman, M
Garrido, L
Grauges, E
Martinez, W
Merino, G
Miquel, R
Mir, Lm
Pacheco, A
Ruiz, H
Colaleo, A
Creanza, D
de Palma, M
Iaselli, G
Maggi, G
Maggi, N
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
Azzurri, P
Buchmuller, O
Cattaneo, M
Cerutti, F
Clerbaux, B
Drevermann, H
Forty, Rw
Frank, T
Gianotti, F
Greening, Tc
Hansen, Jb
Harvey, J
Hutchcroft, De
Janot, P
Jost, B
Kado, M
Mato, P
Moutoussi, A
Ranjard, F
Rolandi, Luigi
Schlatter, D
Schneider, O
Sguazzoni, G
Tejessy, W
Teubert, F
Valassi, A
Videau, I
Ward, J
Badaud, F
Falvard, A
Gay, P
Henrard, P
Jousset, J
Michel, B
Monteil, S
Montret, Jc
Pallin, D
Perret, P
Hansen, Jd
Hansen, Jr
Hansen, Ph
Nilsson, B
Kyriakis, A
Markou, C
Simopoulou, E
Vayaki, A
Zachariadou, K
Blondel, A
Bonneaud, G
Brient, Jc
Rouge, A
Rumpf, M
Swynghedauw, M
Verderi, M
Videau, H
Ciulli, V
Focardi, E
Parrini, G
Antonelli, A
Bencivenni, G
Bossi, F
Campana, P
Capon, G
Chiarella, V
Laurelli, P
Mannocchi, G
Murtas, F
Murtas, Gp
Passalacqua, L
Pepe Altarelli, M
Halley, A
Lynch, Jg
Negus, P
O'Shea, V
Thompson, A
Wasserbaech, S
Cavanaugh, R
Dhamotharan, S
Geweniger, C
Hanke, P
Hepp, V
Kluge, Ee
Putzer, A
Stenzel, H
Tittel, K
Wunsch, M
Beuselinck, R
Binnie, Dm
Cameron, W
Dornan, Pj
Girone, M
Marinelli, N
Sedgbeer, Jk
Thompson, Jc
Ghete, Vm
Girtler, P
Kneringer, E
Kuhn, D
Rudolph, G
Bouhova Thacker, E
Bowdery, Ck
Finch, Aj
Foster, F
Hughes, G
Jones, Rwl
Pearson, Mr
Robertson, Na
Jakobs, K
Kleinknecht, K
Quast, G
Renk, B
Sander, Hg
Wachsmuth, H
Zeitnitz, C
Bonissent, A
Coyle, P
Leroy, O
Payre, P
Rousseau, D
Talby, M
Ragusa, F
David, A
Dietl, H
Ganis, G
Huttmann, K
Lutjens, G
Manner, W
Moser, Hg
Settles, R
Wiedenmann, W
Wolf, G
Boucrot, J
Callot, O
Davier, M
Duflot, L
Grivaz, Jf
Heusse, P
Jacholkowska, A
Lefrancois, J
Veillet, Jj
Yuan, C
Bagliesi, G
Boccali, T
Foa, L
Giammanco, A
Giassi, A
Ligabue, Franco
Messineo, A
Palla, F
Sanguinetti, G
Sciaba, A
Spagnola, P
Tenchini, R
Venturi, A
Verdini, Pg
Xie, Z
Blair, Ga
Cowan, G
Green, Mg
Medcalf, T
Misiejuk, A
Strong, Ja
Teixeira Dias, P
Clifft, Rw
Edgecock, Tr
Norton, Pr
Tomalin, Ir
Bloch Devaux, B
Colas, P
Emery, S
Kozanecki, W
Lancon, E
Lemaire, Mc
Locci, E
Perez, P
Rander, J
Renardy, Jf
Roussarie, A
Schuller, Jp
Schwindling, J
Trabelsi, A
Vallage, B
Konstantinidis, N
Litke, Am
Taylor, G
Booth, Cn
Cartwright, S
Combley, F
Lehto, M
Thompson, Lf
Affholderbach, K
Bohrer, A
Brandt, S
Grupen, C
Ngac, A
Prange, G
Sieler, U
Giannini, G
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
Wu, J
Wu, Sl
Wu, X
Zobernig, G
Dissertori, G.
Publication Year :
2003

Abstract

An improved search for B-s(0) oscillations is performed in the ALEPH data sample collected during the first phase of LEP, and reprocessed in 1998. Three analyses based on complementary event selections are presented. First, decays of B-s(0) mesons into hadronic flavour eigenstates are fully reconstructed. This selection yields a small sample of candidates with excellent decay length and momentum resolution and high average B-s(0) purity. Semileptonic decays with a reconstructed D-s(-) meson provide a second sample with larger statistics, high average B-s(0) purity, but a poorer momentum and decay length resolution due to the partial decay reconstruction. Finally, semileptonic b-hadron decays are inclusively selected and yield the data sample with the highest sensitivity to B-s(0) oscillations, as the much higher statistics compensate for the low average B-s(0) purity and poorer time resolution. A lower limit is set at Deltam(s) > 10.9 ps(-1) at 95%C.L., significantly lower than the expected limit of 15.2 ps(-1).

Subjects

Subjects :
High Energy Physics::Experiment

Details

Database :
OpenAIRE
Accession number :
edsair.dedup.wf.001..23b11ef123ba36a0a10e48f7d3e3cb88