Ερευνητικό υλικό ΕΚΠΑ

Production of phi-mesons in p + p, p + Pb and central Pb + Pb collisions
at E-beam=158 A GeV

Αγγλικά

Yields and phase space distributions of phi -mesons emitted from p + p
(minimum bias trigger), p + Pb (at various centralities) and central Pb
+ Pb collisions are reported (E-beam = 158 A GeV). The decay phi –>
K+K- was used for identification. The phi/pi ratio is found to increase
by a factor of 3.0 +/- 0.7 from inelastic p + p to central Pb + Pb.
Significant enhancement in this ratio is also observed in subclasses of
p + p events (characterized by high charged-particle multiplicity) as
well as in the forward hemisphere of central p + Pb collisions. In Pb +
Pb no shift or significant broadening of the phi -peak is seen. (C) 2000
Published by Elsevier Science B.V.

2000

Afanasiev, SV
Anticic, T
Bachler, J
Barna, D
Barnby, LS
and Bartke, J
Barton, RA
Betev, L
Bialkowska, H and
Billmeier, A
Blume, C
Blyth, CO
Boimska, B
Bracinik, J
and Brady, FP
Brun, R
Buncic, P
Carr, L
Cebra, D and
Cooper, GE
Cramer, JG
Csato, P
Eckardt, V
Eckhardt, F
and Ferenc, D
Fischer, HG
Fodor, Z
Foka, P
Freund, P and
Friese, V
Ftacnik, J
Gal, J
Ganz, R
Gazdzicki, M and
Gladysz, E
Grebieszkow, J
Harris, JW
Hegyi, S
Hlinka, V
and Hohne, C
Igo, G
Ivanov, M
Jacobs, P
Janik, R and
Jones, PG
Kadija, K
Kolesnikov, VI
Kowalski, M
Lasiuk, B
and Levai, P
Malakhov, AI
Margetis, S
Markert, C
Mayes,
BW
Melkumov, GL
Mischke, A
Molnar, J
Nelson, JM and
Odyniec, G
Oldenburg, MD
Palla, G
Panagiotou, AD and
Petridis, A
Pikna, M
Pinsky, L
Poskanzer, AM
Prindle, DJ
and Puhlhofer, F
Reid, JG
Renfordt, R
Retyk, W
Ritter,
HG
Rohrich, D
Roland, C
Roland, G
Rybicki, A
Sammer,
T
Sandoval, A
Sann, H
Semenov, AY
Schafer, E and
Schmitz, N
Seyboth, P
Sikler, F
Sitar, B
Skrzypczak, E
and Snellings, R
Squier, GTA
Stock, R
Strmen, P and
Strobele, H
Susa, T
Szarka, I
Szentpetery, I
Sziklai, J
and Toy, M
Trainor, TA
Trentalange, S
Ullrich, T
Varga,
D
Vassiliou, M
Veres, GI
Vesztergombi, G
Voloshin, S and
Vranic, D
Wang, F
Weerasundara, DD
Wenig, S
Whitten, C
and Xu, N
Yates, TA
Yoo, IK
Zimanyi, J
NA49
Collaboration

PHYSICS LETTERS B

Elsevier

491

1-2

59-66

https://doi.org/10.1016/S0370-2693(00)01023-6

10.1016/S0370-2693(00)01023-6

https://pergamos.lib.uoa.gr/uoa/dl/object/3053985