A study of the decay width difference in the B0s– system using φφ correlations

6533b85efe1ef96bd12c0514

RESEARCH PRODUCT

A study of the decay width difference in the B0s– system using φφ correlations

R. Barate D. Decamp P. Ghez C. Goy J.-p. Lees E. Merle M.-n. Minard B. Pietrzyk R. Alemany S. Bravo M.p. Casado M. Chmeissani J.m. Crespo E. Fernandez M. Fernandez-bosman Ll. Garrido E. Graugés M. Martinez G. Merino R. Miquel Ll.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 J. Lin Q. Ouyang T. Wang Y. Xie R. Xu S. Xue J. Zhang L. Zhang W. Zhao D. Abbaneo G. Boix O. Buchmüller 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 Z. Ajaltouni F. Badaud G. Chazelle O. Deschamps A. Falvard P. Gay C. Guicheney P. Henrard J. Jousset B. Michel S. Monteil J-c. Montret D. Pallin P. Perret F. Podlyski J.d. Hansen J.r. Hansen P.h. Hansen B.s. Nilsson A. Wäänänen G. Daskalakis A. Kyriakis C. Markou E. Simopoulou A. Vayaki A. Blondel G. Bonneaud J.-c. Brient A. Rougé M. Rumpf M. Swynghedauw M. Verderi H. Videau 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. Pepe-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 J. Carr P. Coyle O. Leroy P. Payre D. Rousseau M. Talby M. Aleppo M. Antonelli F. Ragusa H. Dietl G. Ganis K. Hüttmann G. Lütjens C. Mannert W. Männer H.-g. Moser S. Schael R. Settles H. Stenzel W. Wiedenmann G. Wolf P. Azzurri J. Boucrot O. Callot S. Chen A. Cordier M. Davier L. Duflot J.-f. Grivaz Ph. Heusse A. Jacholkowska F. Le Diberder J. Lefrançois A.-m. Lutz M.-h. Schune J.-j. Veillet I. Videau D. Zerwas G. Bagliesi T. Boccali G. Calderini V. Ciulli L. Foà A. Giassi F. Ligabue A. Messineo F. Palla G. Rizzo G. Sanguinetti A. Sciabà 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. Lançon M.-c. Lemaire E. Locci P. Perez 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. Böhrer S. Brandt C. Grupen A. Misiejuk G. Prange U. Sieler G. Giannini B. Gobbo J. Rothberg S. Wasserbaech S.r. Armstrong P. Elmer D.p.s. Ferguson Y. Gao S. González O.j. Hayes H. Hu S. Jin J. Kile P.a. Mcnamara Iii J. Nielsen W. Orejudos Y.b. Pan Y. Saadi I.j. Scott J. Walsh J.h. Von Wimmersperg-toeller Sau Lan Wu X. Wu G. Zobernig

subject

Physics Nuclear and High Energy Physics Meson 010308 nuclear & particles physics Branching fraction Hadron State (functional analysis)01 natural sciences Nuclear physics Theoretical physics 0103 physical sciences CP violation 010306 general physics Bar (unit)

description

In a data sample of about four million hadronic Z decays recorded with the ALEPH detector from 1991 to 1995, the decay is observed, based on tagging the final state with two φ mesons in the same hemisphere. The final state is mostly CP even and corresponds to the short-lived B0s mass eigenstate. The branching ratio of this decay is measured to be . A measurement of the lifetime of the B0s(short) gives 1.27±0.33±0.08 ps. The lifetime and branching ratio measurements provide two essentially independent methods of estimating the relative decay width difference ΔΓ/Γ in the B0s– system, corresponding to an average value ΔΓ/Γ=(25+21−14)%.

year	journal	country	edition	language
2000-08-01	Physics Letters B

https://doi.org/10.1016/s0370-2693(00)00750-4