Production of Ds** mesons in hadronic Z decays

6533b86efe1ef96bd12cc9b9

RESEARCH PRODUCT

Production of Ds** mesons in hadronic Z decays

A. Heister S. Schael R. Barate I. De Bonis D. Decamp C. Goy J.-p. Lees E. Merle M.-n. Minard B. Pietrzyk G. Boix 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 P. Azzurri O. Buchmüller M. Cattaneo F. Cerutti B. Clerbaux H. Drevermann R.w. Forty M. Frank F. Gianotti T.c. Greening J.b. Hansen J. Harvey D.e. Hutchcroft P. Janot B. Jost M. Kado P. Mato A. Moutoussi F. Ranjard L. Rolandi D. Schlatter O. Schneider G. Sguazzoni W. Tejessy F. Teubert A. Valassi I. Videau J. Ward F. Badaud A. Falvard P. Gay P. Henrard J. Jousset B. Michel S. Monteil J.-c. Montret D. Pallin P. Perret J.d. Hansen J.r. Hansen P.h. Hansen B.s. Nilsson A. Wäänänen A. Kyriakis C. Markou E. Simopoulou A. Vayaki K. Zachariadou A. Blondel G. Bonneaud J.-c. Brient A. Rougé M. Rumpf M. Swynghedauw M. Verderi H. Videau V. Ciulli E. Focardi G. Parrini A. Antonelli M. 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 P. Spagnolo A. Halley J.g. Lynch P. Negus V. O'shea C. Raine A.s. Thompson S. Wasserbaech 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 V.m. Ghete P. Girtler E. Kneringer D. Kuhn G. Rudolph E. Bouhova-thacker C.k. Bowdery A.j. Finch F. Foster G. Hughes R.w.l. Jones M.r. Pearson N.a. Robertson K. Jakobs K. Kleinknecht G. Quast B. Renk H.-g. Sander H. Wachsmuth C. Zeitnitz A. Bonissent J. Carr P. Coyle O. Leroy P. Payre D. Rousseau M. Talby F. Ragusa A. David H. Dietl G. Ganis K. Hüttmann G. Lütjens C. Mannert W. Männer H.-g. Moser R. Settles H. Stenzel W. Wiedenmann G. Wolf J. Boucrot O. Callot M. Davier L. Duflot J.-f. Grivaz Ph. Heusse A. Jacholkowska J. Lefrançois J.-j. Veillet C. Yuan G. Bagliesi T. Boccali L. Foà A. Giammanco A. Giassi F. Ligabue A. Messineo F. Palla G. Sanguinetti A. Sciabà R. Tenchini A. Venturi P.g. Verdini G.a. Blair G. Cowan M.g. Green T. Medcalf A. Misiejuk J.a. Strong P. Teixeira-dias J.h. Von Wimmersperg-toeller 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 N. Konstantinidis A.m. Litke G. Taylor C.n. Booth S. Cartwright F. Combley M. Lehto L.f. Thompson K. Affholderbach A. Böhrer S. Brandt C. Grupen A. Ngac G. Prange U. Sieler G. Giannini J. Rothberg S.r. Armstrong K. Berkelman K. Cranmer D.p.s. Ferguson Y. Gao S. González O.j. Hayes H. Hu S. Jin J. Kile P.a. Mcnamara J. Nielsen Y.b. Pan J.h. Von Wimmersperg-toeller W. Wiedenmann J. Wu Sau Lan Wu X. Wu G. Zobernig G. Dissertori

subject

Physics Nuclear and High Energy Physics Particle physics Meson 010308 nuclear & particles physics Branching fraction Electron–positron annihilation Hadron FOS: Physical sciences 01 natural sciences High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex)Excited state 0103 physical sciences Production (computer science)010306 general physics Production rate

description

The production rates of the orbitally excited Ds** mesons, Ds1 and Ds2*, are measured with the 4.1 million hadronic Z decays recorded by the ALEPH detector during 1991--1995. The Ds** mesons are reconstructed in the decay modes Ds1+ -> D*+ K0, Ds1+ -> D*0 K+ and Ds2*+ -> D0 K+. The production rate of the Ds1 is measured to be n(Z->Ds1+-)=(0.52+-0.09+-0.06)%, under the assumption that the two considered decay modes of the Ds1 saturate the branching ratio. The production rate of the Ds2* is determined to be n(Z->Ds2*+-)=(0.83+-0.29+0.07-0.13)%, assuming that the branching fraction of the decay Ds2*+ -> D0 K+ is 45%. The production rates in Z->cc and Z->bbar decays are measured separately

year	journal	country	edition	language
2002-01-01

10.1016/s0370-2693(01)01465-4 http://arxiv.org/abs/hep-ex/0112010