Hyperon production in Pb+Pb collisions at 158 A GeV/c

Havard Helstrup,E. Andersen,A. Andrighetto,F. Antinori,N. Armenise,J. Ban,D. Barberis,H. Beker,M. Benayoun,W. Beusch,R. Blaes,J. Bohm,J. M. Brom,M. Campbell,E. Cantatore,N. Carrer,M.G. Catanesi,E. Chesi,M. Dameri,G. Darbo,J.P. Davies,A. Diaczek,D. Di Bari,S. Di Liberto,A. Di Mauro,D. Elia,D. Evans,K. Fanebust,P. Farthouat,R. A. Fini,J.C Fontaine,B.R. French,J. Ftáčnik,W Geist,B. Ghidini,G. Grella,M. Guida,E.H.M. Heijne,H. Helstrup,A.K. Holme,D. Huss,A. Jacholkowski,P Jovanovic,A. Jusko,V.A. Kachanov,T. Kachelhoffer,J.B. Kinson,A. Kirk,W. Klempt,K. Knudson,I. Králik,J. C. Lassalle,V. Lenti,Ph. Leruste,J.A. Lien,R. Lietava,L. Lopez,G. Løvhøiden,M. Luptak,I. Mácha,V. Mack,V. Manzari,P. Martinengo,M. A. Mazzoni,F. Meddi,A. Michalon,M E Michalon-Mentzer,P. Middelkamp,M. Morando,M.T. Muciaccia,E. Nappi,J.L. Narjoux,F. Navach,K.L. Norman,Bianca Osculati,B. Pastirčák,F. Pellegrini,K. Piska,F. Posa,E. Quercigh,R. A. Ricci,G. Romano,G. Rosa,L. P. Rossi,H. Rotscheidt,K. Šafařík,C. Salvo,L. Sandor,T. Scognetti,G. Segato,M. Sène,R. Sené,P. Sennels,S. Simone,A. Singovski,B. Sopko,P. Staroba,J. Stastny,T. Storås,S. Szafran,T.F. Thorsteinsen,G. Tomasicchio,J. Urban,M. Vaníčková,G. Vassiliadis,M. Venables,O. Villalobos-Baillie,T. Virgili,A. Volte,C. Voltolini,M.F. Votruba,P. Závada

Hyperon production in Pb+Pb collisions at 158 A GeV/c

1996

Havard Helstrup
E. Andersen
A. Andrighetto
F. Antinori
N. Armenise
J. Ban
D. Barberis
H. Beker
M. Benayoun
W. Beusch
R. Blaes
J. Bohm
J. M. Brom
M. Campbell
E. Cantatore
N. Carrer
M.G. Catanesi
E. Chesi
M. Dameri
G. Darbo
J.P. Davies
A. Diaczek
D. Di Bari
S. Di Liberto
A. Di Mauro
D. Elia
D. Evans
K. Fanebust
P. Farthouat
R. A. Fini
J.C Fontaine
B.R. French
J. Ftáčnik
W Geist
B. Ghidini
G. Grella
M. Guida
E.H.M. Heijne
H. Helstrup
A.K. Holme
D. Huss
A. Jacholkowski
P Jovanovic
A. Jusko
V.A. Kachanov
T. Kachelhoffer
J.B. Kinson
A. Kirk
W. Klempt
K. Knudson
I. Králik
J. C. Lassalle
V. Lenti
Ph. Leruste
J.A. Lien
R. Lietava
L. Lopez
G. Løvhøiden
M. Luptak
I. Mácha
V. Mack
V. Manzari
P. Martinengo
M. A. Mazzoni
F. Meddi
A. Michalon
M E Michalon-Mentzer
P. Middelkamp
M. Morando
M.T. Muciaccia
E. Nappi
J.L. Narjoux
F. Navach
K.L. Norman
Bianca Osculati
B. Pastirčák
F. Pellegrini
K. Piska
F. Posa
E. Quercigh
R. A. Ricci
G. Romano
G. Rosa
L. P. Rossi
H. Rotscheidt
K. Šafařík
C. Salvo
L. Sandor
T. Scognetti
G. Segato
M. Sène
R. Sené
P. Sennels
S. Simone
A. Singovski
B. Sopko
P. Staroba
J. Stastny
T. Storås
S. Szafran
T.F. Thorsteinsen
G. Tomasicchio
J. Urban
M. Vaníčková
G. Vassiliadis
M. Venables
O. Villalobos-Baillie
T. Virgili
A. Volte
C. Voltolini
M.F. Votruba
P. Závada

Preliminary results from WA97 measurements on Λ, Ξ and Ω production in lead-lead and proton-lead collisions are presented, along with a comparison of WA97 proton-lead data with previous WA85 proton-tungsten results. The ratio Ω/Ξ seems to be enhanced in lead initiated reactions compared to proton initiated reactions.

Keywords:

Hyperon
Particle physics
Strange quark
Nuclear physics
Physics
Proton
Hadron

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