New results from the NA57 experiment
P.A. Bacon
,
A. Badala
,
R. Barbera
,
A. Belogianni
,
A. Bhasin
,
I.J. Bloodworth
,
M. Bombara
,
G. Bruno
,
S.A. Bull
,
R. Caliandro
,
M. Campbell
,
W. Carena
,
N. Carrer
,
R.F. Clarke
,
A. Dainese
,
A.P. de Haas
,
P.C. de Rijke
,
D. Di Bari
,
S. Di Liberto
,
R. Divia
,
D. Elia
,
D. Evans
,
K. Fanebust
,
F. Fayazzadeh
,
G.A. Feofilov
,
R. Fini
,
P. Ganoti
,
B. Ghidini
,
G. Grella
,
H. Helstrup
,
M. Henriquez
,
A.K. Holme
,
A. Jacholkowski
,
G.T. Jones
,
P. Jovanovic
,
A. Jusko
,
R. Kamermans
,
J.B. Kinson
,
K. Knudson
,
A.A. Kolojvari
,
V. Kondratiev
,
I. Kralik
,
A. Kravcakova
,
P. Kuijer
,
V. Lenti R. Lietava
,
G. Lovhoiden
,
V. Manzari
,
G. Martinska
,
M.A. Mazzoni
,
F. Meddi
,
A. Michalon
(1)
,
M. Morando
,
E. Nappi
,
F. Navach
,
P.I. Norman
,
A. Palmeri
,
G.S. Pappalardo
,
B. Pastircak
,
J. Pisut
,
J. Pisutova
,
F. Posa
,
E. Quercigh
,
F. Riggi
,
D. Rohrich
,
G. Romano
,
K. Safarik
,
L. Sandor
,
E. Schillings
,
G. Segato
,
M. Sene
,
R. Sene
,
W. Snoeys
,
F. Soramel
,
M. Spyropoulou--Stassinaki
,
P. Staroba
,
T.A. Toulina
,
R. Turrisi
,
T.S. Tveter
,
Jakub Urban
,
F.F. Valiev
,
A. van den Brink
,
P. van de Ven
,
P. Vande Vyvre
,
N. van Eijndhoven
,
J. van Hunen
,
A. Vascotto
,
T. Vik
,
O. Villalobos Baillie
,
I. Vinogradov
,
T. Virgili
,
M.F. Votruba
,
J. Vrlakova
,
P. Zavada
P.A. Bacon
- Function : Author
A. Badala
- Function : Author
R. Barbera
- Function : Author
A. Belogianni
- Function : Author
A. Bhasin
- Function : Author
I.J. Bloodworth
- Function : Author
M. Bombara
- Function : Author
G. Bruno
- Function : Author
S.A. Bull
- Function : Author
R. Caliandro
- Function : Author
M. Campbell
- Function : Author
W. Carena
- Function : Author
N. Carrer
- Function : Author
R.F. Clarke
- Function : Author
A. Dainese
- Function : Author
A.P. de Haas
- Function : Author
P.C. de Rijke
- Function : Author
D. Di Bari
- Function : Author
S. Di Liberto
- Function : Author
R. Divia
- Function : Author
D. Elia
- Function : Author
D. Evans
- Function : Author
K. Fanebust
- Function : Author
F. Fayazzadeh
- Function : Author
G.A. Feofilov
- Function : Author
R. Fini
- Function : Author
P. Ganoti
- Function : Author
B. Ghidini
- Function : Author
G. Grella
- Function : Author
H. Helstrup
- Function : Author
M. Henriquez
- Function : Author
A.K. Holme
- Function : Author
A. Jacholkowski
- Function : Author
G.T. Jones
- Function : Author
P. Jovanovic
- Function : Author
A. Jusko
- Function : Author
R. Kamermans
- Function : Author
J.B. Kinson
- Function : Author
K. Knudson
- Function : Author
A.A. Kolojvari
- Function : Author
V. Kondratiev
- Function : Author
I. Kralik
- Function : Author
A. Kravcakova
- Function : Author
P. Kuijer
- Function : Author
V. Lenti R. Lietava
- Function : Author
G. Lovhoiden
- Function : Author
V. Manzari
- Function : Author
G. Martinska
- Function : Author
M.A. Mazzoni
- Function : Author
F. Meddi
- Function : Author
M. Morando
- Function : Author
E. Nappi
- Function : Author
F. Navach
- Function : Author
P.I. Norman
- Function : Author
A. Palmeri
- Function : Author
G.S. Pappalardo
- Function : Author
B. Pastircak
- Function : Author
J. Pisut
- Function : Author
J. Pisutova
- Function : Author
F. Posa
- Function : Author
E. Quercigh
- Function : Author
F. Riggi
- Function : Author
D. Rohrich
- Function : Author
G. Romano
- Function : Author
K. Safarik
- Function : Author
L. Sandor
- Function : Author
E. Schillings
- Function : Author
G. Segato
- Function : Author
M. Sene
- Function : Author
R. Sene
- Function : Author
W. Snoeys
- Function : Author
F. Soramel
- Function : Author
M. Spyropoulou--Stassinaki
- Function : Author
P. Staroba
- Function : Author
T.A. Toulina
- Function : Author
R. Turrisi
- Function : Author
T.S. Tveter
- Function : Author
Jakub Urban
- Function : Author
F.F. Valiev
- Function : Author
A. van den Brink
- Function : Author
P. van de Ven
- Function : Author
P. Vande Vyvre
- Function : Author
N. van Eijndhoven
- Function : Author
J. van Hunen
- Function : Author
A. Vascotto
- Function : Author
T. Vik
- Function : Author
O. Villalobos Baillie
- Function : Author
I. Vinogradov
- Function : Author
T. Virgili
- Function : Author
M.F. Votruba
- Function : Author
J. Vrlakova
- Function : Author
P. Zavada
- Function : Author
Abstract
We report results from the experiment NA57 at CERN SPS on hyperon production at midrapidity in Pb-Pb collisions at 158 $A$ GeV/$c$ and 40 $A$ GeV/$c$. $\Lambda$, $\Xi$ and $\Omega$ yields are compared with those from the STAR experiment at the higher energy of the BNL RHIC. $\Lambda$, $\Xi$, $\Omega$\ and preliminary $K_S^0$ transverse mass spectra are presented and interpreted within the framework of a hydro-dynamical blast wave model.