Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays - IN2P3 - Institut national de physique nucléaire et de physique des particules
Journal Articles Physics Letters B Year : 2000

Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays

P. Abreu , W. Adam , T. Adye , P. Adzic , I. Ajinenko , Z. Albrecht , T. Alderweireld , G D. Alekseev , R. Alemany , T. Allmendinger , P P. Allport , S. Almehed , U. Amaldi , N. Amapane , S. Amato , E G. Anassontzis , P. Andersson , A. Andreazza , S. Andringa , P. Antilogus (1) , W D. Apel , Y. Arnoud , B. Asman , J.-E. Augustin (1) , A. Augustinus , P. Baillon , A. Ballestrero , P. Bambade (2) , F. Barao , Guido Barbiellini , R. Barbier (1) , D Yu. Bardin , G. Barker , A. Baroncelli , M. Battaglia , M. Baubillier (3) , K H. Becks , M. Begalli , A. Behrmann , P. Beilliere , Yu. Belokopytov , N C. Benekos , a C. Benvenuti , C. Berat (4) , M. Berggren (3) , D. Bertrand , M. Besancon , M. Bigi , M S. Bilenkii , M A. Bizouard , D. Bloch (5) , H M. Blom , M. Bonesini , M. Boonekamp , P S L. Booth , G. Borisov (2) , C. Bosio , O. Botner , E. Boudinov , B. Bouquet (2) , C. Bourdarios (2) , T J V. Bowcock , I. Boyko , I. Bozovic , M. Bozzo , M. Bracko , P. Branchini , R A. Brenner , P. Bruckman , J M. Brunet (6) , L. Bugge , T. Buran , B. Buschbeck , P. Buschmann , S. Cabrera , M. Caccia , M. Calvi , T. Camporesi , V. Canale , F. Carena , L. Carroll , C. Caso , M V. Castillo-Gimenez , A. Cattai , F R. Cavallo , V. Chabaud , P. Charpentier , P. Checchia , G A. Chelkov , R. Chierici , P. Shlyapnikov , P. Chochula , V. Chorowicz , J. Chudoba , K. Cieslik , P. Collins , R. Contri , E. Cortina , G. Cosme , F. Cossutti , M. Costa , H B. Crawley , D. Crennell , S. Crepe (4) , G. Crosetti , J. Cuevas-Maestro , S. Czellar , M. Davenport , W. da Silva (3) , G. Della Ricca , P A. Delpierre (7) , N. Demaria , A. de Angelis , W. de Boer , C. de Clercq , B. de Lotto , A. de Min , L. de Paula , H. Dijkstra , L. Di Ciaccio , J. Dolbeau (6) , K. Doroba , M. Dracos (5) , J. Drees , M. Dris , A. Duperrin , J D. Durand , G. Eigen , T. Ekeloef , G. Ekspong , M. Ellert , M. Elsing , J.P. Engel (5) , M. Espirito Santo , G. Fanourakis , D. Fassouliotis , J. Fayot (3) , M. Feindt , A. Ferrer , E. Ferrer-Ribas (2) , F. Ferro , S. Fichet (3) , A. Firestone , U. Flagmeyer , H. Foeth , E. Fokitis , F. Fontanelli , B. Franek , a G. Frodesen , R. Fruehwirth , F. Fulda-Quenzer (2) , J. Fuster , A. Galloni , D. Gamba , S. Gamblin (2) , M. Gandelman , C. Garcia , C. Gaspar , M. Gaspar , U. Gasparini , P. Gavillet , E N. Gazis , D. Gele (5) , T. Geralis , L. Gerdyukov , N. Ghodbane (1) , I. Gil , F. Glege , R. Gokieli , B. Golob , G. Gomez-Ceballos , P. Goncalves , I. Gonzalez-Caballero , G. Gopal , L. Gorn , Yu. Guz , V. Gracco , J. Grahl , E. Graziani , P. Gris , G. Grosdidier , K. Grzelak , J. Guy , C. Haag , F. Hahn , S. Hahn , S. Haider , A. Hallgren , K. Hamacher , J. Hansen , F J. Harris , F. Hauler , V. Hedberg , S. Heising , J J. Hernandez , P. Herquet , H. Herr , T L. Hessing , J M. Heuser , E. Higon , S O. Holmgren , P J. Holt , S. Hoorelbeke , M. Houlden , J. Hrubec , M. Huber , K. Huet , G J. Hughes , K. Hultqvist , J N. Jackson , R. Jacobsson , P. Jalocha , R. Janik , C. Jarlskog , G. Jarlskog , P. Jarry , B. Jean-Marie (2) , D. Jeans , E K. Johansson , P. Jonsson (1) , C. Joram , P. Juillot (5) , L. Jungermann , F. Kapusta (3) , K. Karafasoulis , S. Katsanevas (1) , E C. Katsoufis , R. Keranen , G. Kernel , B P. Kersevan , Yu. Khokhlov , B A. Khomenko , N N. Khovanskii , A. Kiiskinen , B J. King , A. Kinvig , N J. Kjaer , O. Klapp , H. Klein , P. Kluit , P. Kokkinias , V. Kostyukhin , C. Kourkoumelis , O. Kuznetsov , M. Krammer , E. Kriznic , Z. Krumshtein , P. Kubinec , J. Kurowska , K. Kurvinen , J W. Lamsa , D W. Lane , J P. Laugier , R. Lauhakangas , G. Leder , F. Ledroit (4) , V. Lefebure , L. Leinonen , A. Leisos , R. Leitner , G. Lenzen , V. Lepeltier (2) , T. Lesiak , M. Lethuillier (1) , J. Libby , W. Liebig , D. Liko , A. Lipniacka , I. Lippi , B. Loerstad , J G. Loken , J H. Lopes , J M. Lopez , R. Lopez-Fernandez (4) , D. Loukas , P. Lutz , L. Lyons , J. Macnaughton , J R. Mahon , A. Maio , A. Malek , T G M. Malmgren , S. Maltezos , V. Malychev , F. Mandl , J. Marco , R. Marco , B. Marechal , M. Margoni , J C. Marin , C. Mariotti , A. Markou , C. Martinez-Rivero , I Garcia S. Marti , J. Masik , N. Mastroyiannopoulos , F. Matorras , C. Matteuzzi , G. Matthiae , F. Mazzucato , M. Mazzucato , M. Mccubbin , R. Mckay , R. Mcnulty , G. Mcpherson , C. Meroni , W T. Meyer , E. Migliore , L. Mirabito (1) , W A. Mitaroff , U. Mjoernmark , T. Moa , M. Moch , R. Moller , K. Moenig , M R. Monge , D. Moraes , X. Moreau (3) , P. Morettini , G. Morton , U. Mueller , K. Muenich , M. Mulders , C. Mulet-Marquis (4) , R. Muresan , W J. Murray , B. Muryn , G. Myatt , T. Myklebust , F. Naraghi (4) , M. Nassiakou , F L. Navarria , K. Nawrocki , P. Negri , N. Neufeld , R. Nicolaidou , B S. Nielsen , P. Niezurawski , M. Nikolenko (5) , V. Nomokonov , A. Nygren , V F. Obraztsov , a G. Olshevskii , A. Onofre , R. Orava , G. Orazi (5) , K. Osterberg , A. Ouraou , A. Oyanguren , M. Paganoni , S. Paiano , R. Pain (3) , R. Paiva , J. Palacios , H. Palka , T D. Papadopoulou , L. Pape , C. Parkes , F. Parodi , U. Parzefall , A. Passeri , O. Passon , T. Pavel , M. Pegoraro , L. Peralta , M. Pernicka , A. Perrotta , C. Petridou , A. Petrolini , H T. Phillips , F. Pierre , M. Pimenta , E. Piotto , T. Podobnik , M E. Pol , G. Polok , P. Poropat , V. Pozdnyakov , P. Privitera , N. Pukhaeva , A. Pullia , D. Radojicic , S. Ragazzi , H. Rahmani , J. Rames , P N. Ratoff , a L. Read , P. Rebecchi , N G. Redaelli , M. Regler , J. Rehn , D. Reid , P. Reinertsen , R. Reinhardt , P B. Renton , L K. Resvanis , F. Richard (2) , J. Ridky , G. Rinaudo , I. Ripp-Baudot (5) , O. Rohne , A. Romero , P. Ronchese , E I. Rosenberg , P. Rosinsky , P. Roudeau (2) , T. Rovelli , C. Royon , V. Ruhlmann-Kleider , A. Ruiz , H. Saarikko , Y. Sacquin , A. Sadovskii , G. Sajot (4) , J. Salt , D. Sampsonidis , M. Sannino , P. Schwemling (3) , B. Schwering , U. Schwickerath , F. Scuri , P. Seager , Yu. Sedykh , F. Seemann , a M. Segar , N. Seibert , R. Sekulin , R C. Shellard , M. Siebel , L. Simard , F. Simonetto , a N. Sissakian , G. Smadja (1) , N. Smirnov , O. Smirnova , G R. Smith , A. Sokolov , O. Solovyanov , A. Sopczak , R. Sosnowski , Tz. Spassoff , E. Spiriti , S. Squarcia , C. Stanescu , S. Stanic , M. Stanitzki , K. Stevenson , A. Stocchi (2) , J. Strauss , R. Strub (5) , B. Stugu , M. Szczekowski , M. Szeptycka , T. Tabarelli de Fatis , A. Taffard , F. Tegenfeldt , F. Terranova , J. Thomas , J. Timmermans , N. Tinti , L G. Tkatchev , M. Tobin , S. Todorova , a G. Tomaradze , B. Tome , A. Tonazzo , L. Tortora , Pablo Tortosa , G. Transtroemer , D. Treille , G. Tristram (6) , M. Trochimczuk , C. Troncon , M L. Turluer , I A. Tyapkin , P. Tyapkin , S. Tzamarias , O. Ullaland , V. Uvarov , G. Valenti , E. Vallazza , P. van Dam , W. van den Boeck , J. van Eldik , A. van Lysebetten , N. van Remortel , I. van Vulpen , G. Vegni , Laurent Ventura , W. Venus , F. Verbeure , P. Verdier , M. Verlato , L S. Vertogradov , V. Verzi , D. Vilanova , L. Vitale , E. Vlasov , A. Vodopyanov , G. Voulgaris , V. Vrba , H. Wahlen , C. Walck , a J. Washbrook , C. Weiser , D. Wicke , J H. Wickens , G R. Wilkinson , M. Winter (5) , M. Witek , G. Wolf , J. Yi , O. Yushchenko , A. Zalewska , P. Zalewski , D. Zavrtanik , E. Zevgolatakos , N I. Zimin , A. Zintchenko , P. Zoller (5) , G C. Zucchelli , G. Zumerle , W. Beckmann
P. Abreu
  • Function : Author
W. Adam
  • Function : Author
T. Adye
  • Function : Author
P. Adzic
  • Function : Author
I. Ajinenko
  • Function : Author
Z. Albrecht
  • Function : Author
T. Alderweireld
  • Function : Author
G D. Alekseev
  • Function : Author
R. Alemany
  • Function : Author
T. Allmendinger
  • Function : Author
P P. Allport
  • Function : Author
S. Almehed
  • Function : Author
U. Amaldi
  • Function : Author
N. Amapane
  • Function : Author
S. Amato
  • Function : Author
E G. Anassontzis
  • Function : Author
P. Andersson
  • Function : Author
A. Andreazza
  • Function : Author
S. Andringa
  • Function : Author
P. Antilogus
W D. Apel
  • Function : Author
Y. Arnoud
  • Function : Author
B. Asman
  • Function : Author
A. Augustinus
  • Function : Author
P. Baillon
  • Function : Author
A. Ballestrero
  • Function : Author
F. Barao
  • Function : Author
Guido Barbiellini
  • Function : Author
D Yu. Bardin
  • Function : Author
G. Barker
  • Function : Author
A. Baroncelli
  • Function : Author
M. Battaglia
  • Function : Author
K H. Becks
  • Function : Author
M. Begalli
  • Function : Author
A. Behrmann
  • Function : Author
P. Beilliere
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Yu. Belokopytov
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N C. Benekos
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a C. Benvenuti
  • Function : Author
D. Bertrand
  • Function : Author
M. Besancon
  • Function : Author
M. Bigi
  • Function : Author
M S. Bilenkii
  • Function : Author
M A. Bizouard
H M. Blom
  • Function : Author
M. Bonesini
  • Function : Author
M. Boonekamp
  • Function : Author
P S L. Booth
  • Function : Author
G. Borisov
C. Bosio
  • Function : Author
O. Botner
  • Function : Author
E. Boudinov
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T J V. Bowcock
  • Function : Author
I. Boyko
I. Bozovic
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M. Bozzo
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M. Bracko
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P. Branchini
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R A. Brenner
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P. Bruckman
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L. Bugge
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T. Buran
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B. Buschbeck
  • Function : Author
P. Buschmann
  • Function : Author
S. Cabrera
  • Function : Author
M. Caccia
  • Function : Author
M. Calvi
  • Function : Author
T. Camporesi
  • Function : Author
V. Canale
  • Function : Author
F. Carena
  • Function : Author
L. Carroll
  • Function : Author
C. Caso
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M V. Castillo-Gimenez
  • Function : Author
A. Cattai
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F R. Cavallo
  • Function : Author
V. Chabaud
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P. Charpentier
  • Function : Author
P. Checchia
  • Function : Author
G A. Chelkov
  • Function : Author
R. Chierici
  • Function : Author
P. Shlyapnikov
  • Function : Author
P. Chochula
  • Function : Author
V. Chorowicz
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J. Chudoba
  • Function : Author
K. Cieslik
  • Function : Author
P. Collins
  • Function : Author
R. Contri
  • Function : Author
E. Cortina
  • Function : Author
G. Cosme
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F. Cossutti
  • Function : Author
M. Costa
H B. Crawley
  • Function : Author
D. Crennell
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G. Crosetti
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J. Cuevas-Maestro
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S. Czellar
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M. Davenport
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G. Della Ricca
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N. Demaria
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A. de Angelis
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W. de Boer
  • Function : Author
C. de Clercq
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B. de Lotto
A. de Min
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L. de Paula
  • Function : Author
H. Dijkstra
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L. Di Ciaccio
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K. Doroba
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M. Dracos
J. Drees
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M. Dris
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A. Duperrin
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J D. Durand
  • Function : Author
G. Eigen
  • Function : Author
T. Ekeloef
  • Function : Author
G. Ekspong
  • Function : Author
M. Ellert
  • Function : Author
M. Elsing
  • Function : Author
M. Espirito Santo
  • Function : Author
G. Fanourakis
  • Function : Author
D. Fassouliotis
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M. Feindt
  • Function : Author
A. Ferrer
  • Function : Author
F. Ferro
  • Function : Author
A. Firestone
  • Function : Author
U. Flagmeyer
  • Function : Author
H. Foeth
  • Function : Author
E. Fokitis
  • Function : Author
F. Fontanelli
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B. Franek
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a G. Frodesen
  • Function : Author
R. Fruehwirth
  • Function : Author
J. Fuster
  • Function : Author
A. Galloni
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D. Gamba
  • Function : Author
M. Gandelman
  • Function : Author
C. Garcia
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C. Gaspar
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M. Gaspar
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U. Gasparini
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P. Gavillet
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E N. Gazis
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T. Geralis
  • Function : Author
L. Gerdyukov
  • Function : Author
I. Gil
  • Function : Author
F. Glege
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R. Gokieli
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B. Golob
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G. Gomez-Ceballos
  • Function : Author
P. Goncalves
  • Function : Author
I. Gonzalez-Caballero
  • Function : Author
G. Gopal
  • Function : Author
L. Gorn
  • Function : Author
Yu. Guz
  • Function : Author
V. Gracco
  • Function : Author
J. Grahl
  • Function : Author
E. Graziani
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P. Gris
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G. Grosdidier
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K. Grzelak
  • Function : Author
J. Guy
  • Function : Author
C. Haag
  • Function : Author
F. Hahn
  • Function : Author
S. Hahn
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S. Haider
  • Function : Author
A. Hallgren
  • Function : Author
K. Hamacher
  • Function : Author
J. Hansen
  • Function : Author
F J. Harris
  • Function : Author
F. Hauler
  • Function : Author
V. Hedberg
  • Function : Author
S. Heising
  • Function : Author
J J. Hernandez
  • Function : Author
P. Herquet
  • Function : Author
H. Herr
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T L. Hessing
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J M. Heuser
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E. Higon
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S O. Holmgren
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P J. Holt
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S. Hoorelbeke
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M. Houlden
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J. Hrubec
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M. Huber
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K. Huet
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G J. Hughes
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K. Hultqvist
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J N. Jackson
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R. Jacobsson
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P. Jalocha
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R. Janik
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C. Jarlskog
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G. Jarlskog
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P. Jarry
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D. Jeans
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E K. Johansson
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C. Joram
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L. Jungermann
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K. Karafasoulis
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E C. Katsoufis
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R. Keranen
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G. Kernel
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B P. Kersevan
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Yu. Khokhlov
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B A. Khomenko
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N N. Khovanskii
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A. Kiiskinen
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B J. King
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A. Kinvig
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N J. Kjaer
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O. Klapp
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H. Klein
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P. Kluit
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P. Kokkinias
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V. Kostyukhin
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C. Kourkoumelis
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O. Kuznetsov
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M. Krammer
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E. Kriznic
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Z. Krumshtein
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P. Kubinec
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J. Kurowska
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K. Kurvinen
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J W. Lamsa
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D W. Lane
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J P. Laugier
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R. Lauhakangas
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G. Leder
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V. Lefebure
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L. Leinonen
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A. Leisos
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R. Leitner
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G. Lenzen
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T. Lesiak
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M. Lethuillier
J. Libby
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W. Liebig
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D. Liko
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A. Lipniacka
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I. Lippi
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B. Loerstad
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J G. Loken
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J H. Lopes
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J M. Lopez
  • Function : Author
D. Loukas
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P. Lutz
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L. Lyons
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J. Macnaughton
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J R. Mahon
  • Function : Author
A. Maio
  • Function : Author
A. Malek
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T G M. Malmgren
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S. Maltezos
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V. Malychev
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F. Mandl
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J. Marco
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R. Marco
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B. Marechal
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M. Margoni
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J C. Marin
  • Function : Author
C. Mariotti
  • Function : Author
A. Markou
C. Martinez-Rivero
  • Function : Author
I Garcia S. Marti
  • Function : Author
J. Masik
  • Function : Author
N. Mastroyiannopoulos
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F. Matorras
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C. Matteuzzi
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G. Matthiae
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F. Mazzucato
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M. Mazzucato
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M. Mccubbin
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R. Mckay
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R. Mcnulty
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G. Mcpherson
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C. Meroni
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W T. Meyer
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E. Migliore
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W A. Mitaroff
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U. Mjoernmark
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T. Moa
  • Function : Author
M. Moch
  • Function : Author
R. Moller
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K. Moenig
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M R. Monge
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D. Moraes
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P. Morettini
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G. Morton
  • Function : Author
U. Mueller
  • Function : Author
K. Muenich
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M. Mulders
  • Function : Author
R. Muresan
  • Function : Author
W J. Murray
  • Function : Author
B. Muryn
  • Function : Author
G. Myatt
  • Function : Author
T. Myklebust
  • Function : Author
M. Nassiakou
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F L. Navarria
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K. Nawrocki
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P. Negri
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N. Neufeld
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R. Nicolaidou
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B S. Nielsen
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P. Niezurawski
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V. Nomokonov
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A. Nygren
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V F. Obraztsov
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a G. Olshevskii
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A. Onofre
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R. Orava
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K. Osterberg
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A. Ouraou
  • Function : Author
A. Oyanguren
  • Function : Author
M. Paganoni
  • Function : Author
S. Paiano
R. Paiva
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J. Palacios
  • Function : Author
H. Palka
  • Function : Author
T D. Papadopoulou
  • Function : Author
L. Pape
  • Function : Author
C. Parkes
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F. Parodi
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U. Parzefall
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A. Passeri
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O. Passon
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T. Pavel
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M. Pegoraro
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L. Peralta
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M. Pernicka
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A. Perrotta
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C. Petridou
  • Function : Author
A. Petrolini
  • Function : Author
H T. Phillips
  • Function : Author
F. Pierre
M. Pimenta
  • Function : Author
E. Piotto
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T. Podobnik
  • Function : Author
M E. Pol
  • Function : Author
G. Polok
  • Function : Author
P. Poropat
  • Function : Author
V. Pozdnyakov
  • Function : Author
P. Privitera
  • Function : Author
N. Pukhaeva
  • Function : Author
A. Pullia
  • Function : Author
D. Radojicic
  • Function : Author
S. Ragazzi
  • Function : Author
H. Rahmani
  • Function : Author
J. Rames
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P N. Ratoff
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a L. Read
  • Function : Author
P. Rebecchi
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N G. Redaelli
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M. Regler
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G C. Zucchelli
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Abstract

Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and is identified by its$\sdec$ decay leading to a kink between the $\sm$ and $\pi$-track.The reconstruction of the $\lft$ resonance relies strongly on theparticle identification capabilities of the barrel Ring Imaging Cherenkovdetector and on the ionisation loss measurement of the TPC.Inclusive production spectra are measured for both particles.The production rates are measured to be\begin{eqnarray*}\langle N_{\sm}/N_{\rm Z}^{\rm had} \rangle &=& 0.081 \pm 0.002 \pm 0.010~, \\ \langle N_{\lft}/N_{\rm Z}^{\rm had} \rangle &=& 0.029 \pm 0.005 \pm 0.005~.\end{eqnarray*}%The comparably large production rate of the $\lft$ suggestsThe production rate of the $\lft$ suggests that a large fraction of the stable baryons descend from orbibaryonic states.It is shown that the baryon production rates in Z decays follwa universal phenomenological law related to isospin, strangendmass of the particles.
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Dates and versions

in2p3-00004112 , version 1 (13-03-2000)

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P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, et al.. Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays. Physics Letters B, 2000, 475, pp.429-447. ⟨10.1016/S0370-2693(00)00081-2⟩. ⟨in2p3-00004112⟩
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