A study of the decay width difference in the $B^{0}_{s}-\overline{B}^{ 0}_{s}$ system using $\phi\phi$ correlations - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physics Letters B Year : 2000

A study of the decay width difference in the $B^{0}_{s}-\overline{B}^{ 0}_{s}$ system using $\phi\phi$ correlations

R. Barate (1) , D. Decamp (1) , P. Ghez (1) , C. Goy (1) , J P. Lees (1) , E. Merle (1) , M N. Minard (1) , B. Pietrzyk (1) , R. Alemany , S. Bravo , M P. Casado , M. Chmeissani , J M. Crespo , E. Fernandez , M. Fernandez-Bosman , L. Garrido , E. Graughs , M. Martmnez , G. Merino , R. Miquel , L M. Mir , A. Pacheco , H. Ruiz , A. Colaleo , D. Creanza , 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 , Jiali Lin , Q. Ouyang , T. Wang , Y. Xie , R. Xu , S. Xue , J. Zhang , L. Zhang , W. Zhao , D. Abbaneo , G. Boix , M. Cattaneo , F. Cerutti , G. Dissertori , H. Drevermann , R W. Forty , M. Frank , T C. Greening , a W. Halley , J B. Hansen , J. Harvey , P. Janot , B. Jost , I. Lehraus , P. Mato , A. Minten , A. Moutoussi , F. Ranjard , L. Rolandi , D. Schlatter , M. Schmitt , O. Schneider , P. Spagnolo , W. Tejessy , F. Teubert , E. Tournefier , a E. Wright , Ziad Zj Ajaltouni (2) , F. Badaud (2) , G. Chazelle (2) , O. Deschamps (2) , Alain Falvard (2) , Pascal Gay (2) , C. Guicheney (2) , Pierre Henrard (2) , J. Jousset (2) , B. Michel (2) , S. Monteil (2) , Jean-Claude Montret (2) , D. Pallin (2) , Pascal Perret (2) , F. Podlyski (2) , J D. Hansen , J R. Hansen , P H. Hansen , B S. Nilsson , A. Wddndnen , G. Daskalakis , A. Kyriakis , C. Markou , E. Simopoulou , A. Vayaki , A. Blondel (3) , G. Bonneaud (3) , J C. Brient (3) , A. Rougi (3) , M. Rumpf (3) , M. Swynghedauw , M. Verderi , H. Videau (3) , E. Focardi , G. Parrini , K. Zachariadou , A. Antonelli , G. Bencivenni , G. Bologna , F. Bossi , P. Campana , G. Capon , V. Chiarella , P. Laurelli , G. Mannocchi , F. Murtas , G P. Murtas , L. Passalacqua , M. Pepi-Altarelli , J G. Lynch , P. Negus , V. O'Shea , C. Raine , P. Teixeira-Dias , a S. Thompson , R. Cavanaugh , S. Dhamotharan , C. Geweniger , P. Hanke , G. Hansper , V. Hepp , E E. Kluge , A. Putzer , J. Sommer , K. Tittel , S. Werner , M. Wunsch , R. Beuselinck , D M. Binnie , W. Cameron , P J. Dornan , M. Girone , N. Marinelli , J K. Sedgbeer , J C. Thompson , E. Thomson , V M. Ghete , P. Girtler , E. Kneringer , D. Kuhn , G. Rudolph , C K. Bowdery , P G. Buck , a J. Finch , F. Foster , G. Hughes , R W L. Jones , N A. Robertson , I. Giehl , K. Jakobs , K. Kleinknecht , G. Quast , B. Renk , E. Rohne , H G. Sander , H. Wachsmuth , C. Zeitnitz , A. Bonissent (4) , J. Carr (4) , P. Coyle (4) , O. Leroy (4) , P. Payre (4) , D. Rousseau (4) , M. Talby (4) , M. Aleppo , M. Antonelli , F. Ragusa , H. Dietl , G. Ganis , C. Mannert , W. Mdnner , H G. Moser , S. Schael , R. Settles , H. Stenzel , W. Wiedenmann , G. Wolf , P. Azzurri (5) , J. Boucrot (5) , O. Callot (5) , S. Chen (5) , A. Cordier (5) , M. Davier (5) , L. Duflot (5) , J F. Grivaz (5) , P. Heusse (5) , A. Jacholkowska (5) , F. Le Diberder (5) , J. Lefrangois (5) , a M. Lutz (5) , M H. Schune (5) , J J. Veillet (5) , I. Videau (5) , D. Zerwas (5) , G. Bagliesi , T. Boccali , G. Calderini , V. Ciulli , A. Giassi , F. Ligabue , A. Messineo , F. Palla , G. Rizzo , G. Sanguinetti , G. Sguazzoni , R. Tenchini , A. Venturi , P G. Verdini , G A. Blair , G. Cowan , M G. Green , T. Medcalf , J A. Strong , R W. Clifft , T R. Edgecock , P R. Norton , I R. Tomalin , B. Bloch-Devaux , P. Colas , S. Emery , W. Kozanecki , E. Langon , M C. Lemaire , E. Locci , P. Pirez , J. Rander , J F. Renardy , A. Roussarie , J P. Schuller , J. Schwindling , A. Trabelsi , B. Vallage , S N. Black , J H. Dann , R P. Johnson , H Y. Kim , N. Konstantinidis , a M. Litke , M A. Mcneil , G. Taylor , C N. Booth , S. Cartwright , F. Combley , M. Lehto , L F. Thompson , K. Affholderbach , A. Bvhrer , S. Brandt , C. Grupen , A. Misiejuk , G. Prange , U. Sieler , G. Giannini , B. Gobbo , J E. Rothberg , S. Wasserbaech , S R. Armstrong , P. Elmer , D P S. Ferguson , Y. Gao , S. Gonzalez , O J. Hayes , H. Hu , S. Jin , J. Kile , P A. Mcnamara , J. Nielsen , W. Orejudos , y B. Pan , Y. Saadi , I J. Scott , J. Walsh , J H. von Wimmersperg-Toeller , Lan. Wu Sau , X. Wu , G. Zobernig
C. Goy
R. Alemany
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S. Bravo
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M P. Casado
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M. Chmeissani
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J M. Crespo
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E. Fernandez
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M. Fernandez-Bosman
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L. Garrido
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E. Graughs
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M. Martmnez
  • Function : Author
G. Merino
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R. Miquel
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L M. Mir
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A. Pacheco
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H. Ruiz
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A. Colaleo
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D. Creanza
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M. de Palma
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G. Iaselli
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G. Maggi
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M. Maggi
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S. Nuzzo
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A. Ranieri
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G. Raso
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F. Ruggieri
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G. Selvaggi
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L. Silvestris
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P. Tempesta
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A. Tricomi
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G. Zito
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X. Huang
  • Function : Author
Jiali Lin
  • Function : Author
Q. Ouyang
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T. Wang
  • Function : Author
Y. Xie
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R. Xu
S. Xue
  • Function : Author
J. Zhang
  • Function : Author
L. Zhang
W. Zhao
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D. Abbaneo
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G. Boix
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M. Cattaneo
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F. Cerutti
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G. Dissertori
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H. Drevermann
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R W. Forty
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M. Frank
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T C. Greening
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a W. Halley
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J B. Hansen
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J. Harvey
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P. Janot
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B. Jost
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I. Lehraus
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P. Mato
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A. Minten
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A. Moutoussi
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F. Ranjard
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L. Rolandi
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D. Schlatter
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M. Schmitt
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O. Schneider
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P. Spagnolo
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W. Tejessy
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F. Teubert
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E. Tournefier
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a E. Wright
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J D. Hansen
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J R. Hansen
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P H. Hansen
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B S. Nilsson
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A. Wddndnen
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G. Daskalakis
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A. Kyriakis
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C. Markou
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E. Simopoulou
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A. Vayaki
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M. Swynghedauw
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M. Verderi
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E. Focardi
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G. Parrini
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K. Zachariadou
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A. Antonelli
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G. Bencivenni
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G. Bologna
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F. Bossi
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P. Campana
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G. Capon
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V. Chiarella
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P. Laurelli
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G. Mannocchi
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F. Murtas
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G P. Murtas
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L. Passalacqua
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M. Pepi-Altarelli
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J G. Lynch
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P. Negus
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V. O'Shea
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C. Raine
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P. Teixeira-Dias
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a S. Thompson
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R. Cavanaugh
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S. Dhamotharan
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C. Geweniger
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P. Hanke
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G. Hansper
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V. Hepp
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E E. Kluge
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A. Putzer
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J. Sommer
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K. Tittel
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S. Werner
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M. Wunsch
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R. Beuselinck
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D M. Binnie
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W. Cameron
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P J. Dornan
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M. Girone
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N. Marinelli
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J K. Sedgbeer
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J C. Thompson
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E. Thomson
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V M. Ghete
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P. Girtler
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E. Kneringer
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D. Kuhn
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G. Rudolph
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C K. Bowdery
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P G. Buck
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a J. Finch
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F. Foster
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G. Hughes
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R W L. Jones
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N A. Robertson
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I. Giehl
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K. Jakobs
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K. Kleinknecht
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G. Quast
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B. Renk
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E. Rohne
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H G. Sander
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H. Wachsmuth
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C. Zeitnitz
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O. Leroy
M. Aleppo
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M. Antonelli
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F. Ragusa
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H. Dietl
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G. Ganis
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C. Mannert
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W. Mdnner
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H G. Moser
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S. Schael
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R. Settles
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H. Stenzel
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W. Wiedenmann
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G. Wolf
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G. Bagliesi
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T. Boccali
G. Calderini
V. Ciulli
  • Function : Author
A. Giassi
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F. Ligabue
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A. Messineo
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F. Palla
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G. Rizzo
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G. Sanguinetti
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G. Sguazzoni
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R. Tenchini
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A. Venturi
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P G. Verdini
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G A. Blair
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G. Cowan
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M G. Green
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T. Medcalf
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J A. Strong
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R W. Clifft
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T R. Edgecock
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P R. Norton
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I R. Tomalin
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B. Bloch-Devaux
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P. Colas
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S. Emery
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W. Kozanecki
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E. Langon
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M C. Lemaire
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E. Locci
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P. Pirez
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J. Rander
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J F. Renardy
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A. Roussarie
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J P. Schuller
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J. Schwindling
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A. Trabelsi
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B. Vallage
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S N. Black
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J H. Dann
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R P. Johnson
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H Y. Kim
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N. Konstantinidis
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a M. Litke
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M A. Mcneil
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G. Taylor
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C N. Booth
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S. Cartwright
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F. Combley
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M. Lehto
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L F. Thompson
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K. Affholderbach
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A. Bvhrer
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S. Brandt
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C. Grupen
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A. Misiejuk
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G. Prange
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U. Sieler
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G. Giannini
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B. Gobbo
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J E. Rothberg
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S. Wasserbaech
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S R. Armstrong
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P. Elmer
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D P S. Ferguson
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Y. Gao
  • Function : Author
S. Gonzalez
  • Function : Author
O J. Hayes
  • Function : Author
H. Hu
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S. Jin
  • Function : Author
J. Kile
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P A. Mcnamara
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J. Nielsen
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W. Orejudos
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y B. Pan
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Y. Saadi
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I J. Scott
  • Function : Author
J. Walsh
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J H. von Wimmersperg-Toeller
  • Function : Author
Lan. Wu Sau
  • Function : Author
X. Wu
  • Function : Author
  • PersonId : 829304
G. Zobernig
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Abstract

In a data sample of about four million hadronic Z decays recorded with the ALEPH detector from 1991 to 1995, the $B^{0}_{s} \to D^{(*)+}_{s}D^{(*)-}_{s}$ decay is observed, based on tagging the nal state with two $\phi$ mesons in the same hemisphere. The $D^{(*)+}_{s}D^{(*)-} _{s}$ final state is mostly CP even and corresponds to the short-lived $B^0$ mass eigenstate. The branching ratio of this decay is measured to be BR$(B^{0}_{s}(short) \to D^{(*)+}_{s}D^{(*)-}_{s}) = (23\pm 10^{+19}_{-9})%$. A measurement of the lifetime of the $B^0$(short) gives 1.27$\pm$ 0.33$\pm$ 0.07 ps. The lifetime and branching ratio measurements allow two essentially independent estimates to be made of the relative decay width difference $\Delta\Gamma/\Gamma$ in the $B^{0}_{s}-\overline{B}^{0}_{s}$ system, corresponding to an average value $\Delta\Gamma/\Gamma = (25^{+21}_{-14})%.
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in2p3-00005330 , version 1 (18-08-2000)

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  • HAL Id : in2p3-00005330 , version 1

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R. Barate, D. Decamp, P. Ghez, C. Goy, J P. Lees, et al.. A study of the decay width difference in the $B^{0}_{s}-\overline{B}^{ 0}_{s}$ system using $\phi\phi$ correlations. Physics Letters B, 2000, 486, pp.286-299. ⟨in2p3-00005330⟩
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