Study of Charm Production in Z Decays - IN2P3 - Institut national de physique nucléaire et de physique des particules
Journal Articles European Physical Journal C: Particles and Fields Year : 2000

Study of Charm Production in Z Decays

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 , M P. Casado , M. Chmeissani , J M. Crespo , E. Fernandez , M. Fernandez-Bosman , L. Garrido , E. Grauges , A. Juste , M. Martinez , G. Merino , R. Miquel , L M. Mir , A. Pacheco , I C. Park , I. Riu , 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 , U. Becker , G. Boix , M. Cattaneo , F. Cerutti , V. Ciulli , 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 , O. Leroy , P. Mato , A. Minten , A. Moutoussi , F. Ranjard , L. Rolandi , D. Schlatter , M. Schmitt , O. Schneider , P. Spagnolo , W. Tejessy , F. Teubert , I R. Tomalin , E. Tournefier , a E. Wright , Ziad Zj Ajaltouni (2) , F. Badaud (2) , G. Chazelle (2) , O. Deschamps (2) , Alain Falvard (2) , C. Ferdi (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 , B. Rensch , A. Waananen , G. Daskalakis , A. Kyriakis , C. Markou , E. Simopoulou , I. Siotis , A. Vayaki , A. Blondel (3) , G. Bonneaud (3) , J C. Brient (3) , A. Rouge (3) , M. Rumpf (3) , M. Swynghedauw (3) , M. Verderi (3) , H. Videau (3) , E. Focardi , G. Parrini , K. Zachariadou , R. Cavanaugh , M. Corden , C. Georgiopoulos , 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 , L. Curtis , J G. Lynch , P. Negus , V. O'Shea , C. Raine , P. Teixeira-Dias , a S. Thompson , O. Buchmuller , S. Dhamotharan , C. Geweniger , G. Graefe , 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 , S. Goodsir , E B. Martin , N. Marinelli , A. Sciaba , J K. Sedgbeer , E. Thomson , M D. Williams , 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 , M I. Williams , I. Giehl , K. Jakobs , K. Kleinknecht , G. Quast , B. Renk , E. Rohne , H G. Sander , H. Wachsmuth , C. Zeitnitz , J.J. Aubert (4) , C. Benchouk (4) , A. Bonissent (4) , J. Carr (4) , P. Coyle (4) , F. Etienne (4) , F. Motsch (4) , P. Payre (4) , D. Rousseau (4) , M. Talby (4) , M. Thulasidas (4) , M. Aleppo , M. Antonelli , F. Ragusa , V. Buscher , H. Dietl , G. Ganis , K. Huttmann , G. Lutjens , C. Mannert , W. Manner , H G. Moser , S. Schael , R. Settles , H. Seywerd , 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 , J F. Grivaz , P. Heusse , A. Jacholkowska (5) , F. Le Diberder (5) , J. Lefrancois , a M. Lutz (5) , M H. Schune (5) , J J. Veillet (5) , I. Videau , D. Zerwas (5) , G. Bagliesi , S. Bettarini , T. Boccali , C. Bozzi , G. Calderini , R. Dell'Orso , I. Ferrante , L. Foa , A. Giassi , A. Gregorio , F. Ligabue , A. Lusiani , P S. Marrocchesi , A. Messineo , F. Palla , G. Rizzo , G. Sanguinetti , G. Sguazzoni , R. Tenchini , C. Vannini , A. Venturi , P G. Verdini , G A. Blair , G. Cowan , M G. Green , T. Medcalf , J A. Strong , J H. von Wimmersperg-Toeller , D R. Botterill , R W. Clifft , T R. Edgecock , P R. Norton , J C. Thompson , B. Bloch-Devaux , P. Colas , S. Emery , W. Kozanecki , E. Lancon , 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 S. Kelly , M. Lehto , L F. Thompson , K. Affholderbach , A. Bohrer , S. Brandt , C. Grupen , J. Hess , C. Koob , 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 , P A. Mcnamara , J. Nielsen , W. Orejudos , y B. Pan , Y. Saadi , I J. Scott , J. Walsh , S L. Wu , X. Wu , G. Zobernig
C. Goy
R. Alemany
  • Function : Author
M P. Casado
  • Function : Author
M. Chmeissani
  • Function : Author
J M. Crespo
  • Function : Author
E. Fernandez
  • Function : Author
M. Fernandez-Bosman
  • Function : Author
L. Garrido
  • Function : Author
E. Grauges
  • Function : Author
A. Juste
  • Function : Author
M. Martinez
  • Function : Author
G. Merino
  • Function : Author
R. Miquel
  • Function : Author
L M. Mir
  • Function : Author
A. Pacheco
  • Function : Author
I C. Park
  • Function : Author
I. Riu
  • Function : Author
A. Colaleo
  • Function : Author
D. Creanza
  • Function : Author
M. de Palma
  • Function : Author
G. Iaselli
  • Function : Author
G. Maggi
  • Function : Author
M. Maggi
  • Function : Author
S. Nuzzo
  • Function : Author
A. Ranieri
  • Function : Author
G. Raso
  • Function : Author
F. Ruggieri
  • Function : Author
G. Selvaggi
  • Function : Author
L. Silvestris
  • Function : Author
P. Tempesta
  • Function : Author
A. Tricomi
  • Function : Author
G. Zito
  • Function : Author
X. Huang
  • Function : Author
Jiali Lin
  • Function : Author
Q. Ouyang
  • Function : Author
T. Wang
  • Function : Author
Y. Xie
  • Function : Author
R. Xu
S. Xue
  • Function : Author
J. Zhang
  • Function : Author
L. Zhang
W. Zhao
  • Function : Author
D. Abbaneo
  • Function : Author
U. Becker
  • Function : Author
G. Boix
  • Function : Author
M. Cattaneo
  • Function : Author
F. Cerutti
  • Function : Author
V. Ciulli
  • Function : Author
G. Dissertori
  • Function : Author
H. Drevermann
  • Function : Author
R W. Forty
  • Function : Author
M. Frank
  • Function : Author
T C. Greening
  • Function : Author
a W. Halley
  • Function : Author
J B. Hansen
  • Function : Author
J. Harvey
  • Function : Author
P. Janot
  • Function : Author
B. Jost
  • Function : Author
I. Lehraus
  • Function : Author
O. Leroy
P. Mato
  • Function : Author
A. Minten
  • Function : Author
A. Moutoussi
  • Function : Author
F. Ranjard
  • Function : Author
L. Rolandi
  • Function : Author
D. Schlatter
  • Function : Author
M. Schmitt
  • Function : Author
O. Schneider
  • Function : Author
P. Spagnolo
  • Function : Author
W. Tejessy
  • Function : Author
F. Teubert
  • Function : Author
I R. Tomalin
  • Function : Author
E. Tournefier
  • Function : Author
a E. Wright
  • Function : Author
J D. Hansen
  • Function : Author
J R. Hansen
  • Function : Author
P H. Hansen
  • Function : Author
B S. Nilsson
  • Function : Author
B. Rensch
  • Function : Author
A. Waananen
  • Function : Author
G. Daskalakis
  • Function : Author
A. Kyriakis
  • Function : Author
C. Markou
  • Function : Author
E. Simopoulou
  • Function : Author
I. Siotis
  • Function : Author
A. Vayaki
  • Function : Author
E. Focardi
  • Function : Author
G. Parrini
  • Function : Author
K. Zachariadou
  • Function : Author
R. Cavanaugh
  • Function : Author
M. Corden
  • Function : Author
C. Georgiopoulos
  • Function : Author
A. Antonelli
  • Function : Author
G. Bencivenni
  • Function : Author
G. Bologna
  • Function : Author
F. Bossi
  • Function : Author
P. Campana
  • Function : Author
G. Capon
  • Function : Author
V. Chiarella
  • Function : Author
P. Laurelli
  • Function : Author
G. Mannocchi
  • Function : Author
F. Murtas
  • Function : Author
G P. Murtas
  • Function : Author
L. Passalacqua
  • Function : Author
M. Pepe-Altarelli
  • Function : Author
L. Curtis
  • Function : Author
J G. Lynch
  • Function : Author
P. Negus
  • Function : Author
V. O'Shea
  • Function : Author
C. Raine
  • Function : Author
P. Teixeira-Dias
  • Function : Author
a S. Thompson
  • Function : Author
O. Buchmuller
  • Function : Author
S. Dhamotharan
  • Function : Author
C. Geweniger
  • Function : Author
G. Graefe
  • Function : Author
P. Hanke
  • Function : Author
G. Hansper
  • Function : Author
V. Hepp
  • Function : Author
E E. Kluge
  • Function : Author
A. Putzer
  • Function : Author
J. Sommer
  • Function : Author
K. Tittel
  • Function : Author
S. Werner
  • Function : Author
M. Wunsch
  • Function : Author
R. Beuselinck
  • Function : Author
D M. Binnie
  • Function : Author
W. Cameron
  • Function : Author
P J. Dornan
  • Function : Author
M. Girone
  • Function : Author
S. Goodsir
  • Function : Author
E B. Martin
  • Function : Author
N. Marinelli
  • Function : Author
A. Sciaba
  • Function : Author
J K. Sedgbeer
  • Function : Author
E. Thomson
  • Function : Author
M D. Williams
  • Function : Author
V M. Ghete
  • Function : Author
P. Girtler
  • Function : Author
E. Kneringer
  • Function : Author
D. Kuhn
  • Function : Author
G. Rudolph
  • Function : Author
C K. Bowdery
  • Function : Author
P G. Buck
  • Function : Author
a J. Finch
  • Function : Author
F. Foster
  • Function : Author
G. Hughes
  • Function : Author
R W L. Jones
  • Function : Author
N A. Robertson
  • Function : Author
M I. Williams
  • Function : Author
I. Giehl
  • Function : Author
K. Jakobs
  • Function : Author
K. Kleinknecht
  • Function : Author
G. Quast
  • Function : Author
B. Renk
  • Function : Author
E. Rohne
  • Function : Author
H G. Sander
  • Function : Author
H. Wachsmuth
  • Function : Author
C. Zeitnitz
  • Function : Author
M. Aleppo
  • Function : Author
M. Antonelli
  • Function : Author
F. Ragusa
  • Function : Author
V. Buscher
  • Function : Author
H. Dietl
  • Function : Author
G. Ganis
  • Function : Author
K. Huttmann
  • Function : Author
G. Lutjens
  • Function : Author
C. Mannert
  • Function : Author
W. Manner
  • Function : Author
H G. Moser
  • Function : Author
S. Schael
  • Function : Author
R. Settles
  • Function : Author
H. Seywerd
  • Function : Author
H. Stenzel
  • Function : Author
W. Wiedenmann
  • Function : Author
G. Wolf
  • Function : Author
L. Duflot
  • Function : Author
J F. Grivaz
  • Function : Author
P. Heusse
  • Function : Author
J. Lefrancois
  • Function : Author
I. Videau
  • Function : Author
D. Zerwas
  • Function : Author
  • PersonId : 842996
G. Bagliesi
  • Function : Author
S. Bettarini
  • Function : Author
T. Boccali
C. Bozzi
  • Function : Author
G. Calderini
R. Dell'Orso
  • Function : Author
I. Ferrante
  • Function : Author
L. Foa
  • Function : Author
A. Giassi
  • Function : Author
A. Gregorio
  • Function : Author
F. Ligabue
  • Function : Author
A. Lusiani
  • Function : Author
P S. Marrocchesi
  • Function : Author
A. Messineo
  • Function : Author
F. Palla
  • Function : Author
G. Rizzo
  • Function : Author
G. Sanguinetti
  • Function : Author
G. Sguazzoni
  • Function : Author
R. Tenchini
  • Function : Author
C. Vannini
  • Function : Author
A. Venturi
  • Function : Author
P G. Verdini
  • Function : Author
G A. Blair
  • Function : Author
G. Cowan
  • Function : Author
M G. Green
  • Function : Author
T. Medcalf
  • Function : Author
J A. Strong
  • Function : Author
J H. von Wimmersperg-Toeller
  • Function : Author
D R. Botterill
  • Function : Author
R W. Clifft
  • Function : Author
T R. Edgecock
  • Function : Author
P R. Norton
  • Function : Author
J C. Thompson
  • Function : Author
B. Bloch-Devaux
  • Function : Author
P. Colas
  • Function : Author
S. Emery
  • Function : Author
W. Kozanecki
  • Function : Author
E. Lancon
  • Function : Author
M C. Lemaire
  • Function : Author
E. Locci
  • Function : Author
P. Perez
  • Function : Author
J. Rander
  • Function : Author
J F. Renardy
  • Function : Author
A. Roussarie
  • Function : Author
J P. Schuller
  • Function : Author
J. Schwindling
  • Function : Author
A. Trabelsi
  • Function : Author
B. Vallage
  • Function : Author
S N. Black
  • Function : Author
J H. Dann
  • Function : Author
R P. Johnson
  • Function : Author
H Y. Kim
  • Function : Author
N. Konstantinidis
  • Function : Author
a M. Litke
  • Function : Author
M A. Mcneil
  • Function : Author
G. Taylor
  • Function : Author
C N. Booth
  • Function : Author
S. Cartwright
  • Function : Author
F. Combley
  • Function : Author
M S. Kelly
  • Function : Author
M. Lehto
  • Function : Author
L F. Thompson
  • Function : Author
K. Affholderbach
  • Function : Author
A. Bohrer
  • Function : Author
S. Brandt
  • Function : Author
C. Grupen
  • Function : Author
J. Hess
  • Function : Author
C. Koob
  • Function : Author
A. Misiejuk
  • Function : Author
G. Prange
  • Function : Author
U. Sieler
  • Function : Author
G. Giannini
  • Function : Author
B. Gobbo
  • Function : Author
J E. Rothberg
  • Function : Author
S. Wasserbaech
  • Function : Author
S R. Armstrong
  • Function : Author
P. Elmer
  • Function : Author
D P S. Ferguson
  • Function : Author
Y. Gao
  • Function : Author
S. Gonzalez
  • Function : Author
O J. Hayes
  • Function : Author
H. Hu
  • Function : Author
S. Jin
  • Function : Author
P A. Mcnamara
  • Function : Author
J. Nielsen
  • Function : Author
W. Orejudos
  • Function : Author
y B. Pan
  • Function : Author
Y. Saadi
  • Function : Author
I J. Scott
  • Function : Author
J. Walsh
  • Function : Author
S L. Wu
  • Function : Author
X. Wu
  • Function : Author
  • PersonId : 829304
G. Zobernig
  • Function : Author

Abstract

The production rates of D*+-, Ds*+-, D+-, D0 / D0bar, Ds+, and Lambda_c in Z to ccbar decays are measured using the LEP I data sample recorded by the ALEPH detector. The fractional energy spectrum of the D*+- is well described as the sum of three contributions: charm hadronisation, b hadron decays and gluon splitting into a pair of heavy quarks. The probability for a c quark to hadronise into a D*+ is found to be f(c to D*+) = 0.233 +- 0.010 (stat.) +- 0.011 (syst.). The average fraction of the beam energy carried by D*+- mesons in Z to cc events is measured to be X_E (D*+-) _cc = 0.4878 +- 0.0046 (stat.) +- 0.0061 (syst.). The D*+- energy and the hemisphere mass imbalance distributions are simultaneously used to measure the fraction of hadronic Z decays in which a gluon splits to a cc pair: n_{gluon to cc} = (3.23 +- 0.48 (stat.) +- 0.53 (syst.) %. The ratio of the Vector/(Vector+Pseudoscalar) production rates in charmed mesons is found to be P_V = 0.595 +- 0.045. The fractional decay width of the Z into cc pairs is determined from the sum of the production rates for various weakly decaying charmed states to be Rc = 0.1738 +- 0.0047 (stat.) +- 0.0116 (syst.).
Fichier principal
Vignette du fichier
democrite-00005198.pdf (335.06 Ko) Télécharger le fichier
Loading...

Dates and versions

in2p3-00005198 , version 1 (16-11-2000)

Identifiers

  • HAL Id : in2p3-00005198 , version 1

Cite

R. Barate, D. Decamp, P. Ghez, C. Goy, J P. Lees, et al.. Study of Charm Production in Z Decays. European Physical Journal C: Particles and Fields, 2000, 16, pp.597-611. ⟨in2p3-00005198⟩
55 View
49 Download

Share

More