Ερευνητικό υλικό ΕΚΠΑ

Deuteron production in central Pb plus Pb collisions at 158A GeV

Αγγλικά

Experimental results on deuteron emission from central Pb + Pb
collisions (E-beam = 158A GeV, fixed target), obtained by NA49 at the
CERN SPS accelerator, are presented. The transverse mass in,
distribution was measured near mid-rapidity (2.0 < y < 2.5) in the range
of 0 < m(t) - m(0) < 0.9 GeV/c(2) (0 < p(t) < 2.0 GeV/c) for the 4%
most central collisions. An exponential fit gives an inverse slope T-d =
(450 +/- 30) MeV and a yield dN(d)/dy = 0.34 +/- 0.03. The coalescence
factor B-2 (m(t) = m(0))=(3.5 +/- 1.0) . 10(-4) GeV2 and its
m(t)-dependence are deter-mined and discussed in terms of a model that
includes the collective expansion of the source created in a collision.
The derived Gaussian size parameter R-G Of the emission volume is
consistent with earlier HBT results on the source of pion emission. (C)
2000 Elsevier Science B.V. All rights reserved.

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
Struck, C
Susa, T
Szarka, I
Szentpetery, I
and Sziklai, J
Toy, M
Trainor, TA
Trentalange, S and
Ullrich, T
Varga, D
Vassiliou, M
Veres, GI
Vesztergombi,
G
Voloshin, S
Vranic, D
Wang, F
Weerasundara, DD and
Wenig, S
Whitten, C
Xu, N
Yates, TA
Yoo, IK
Zimanyi,
J

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

486

1-2

22-28

https://doi.org/10.1016/S0370-2693(00)00746-2

10.1016/S0370-2693(00)00746-2

https://pergamos.lib.uoa.gr/uoa/dl/object/3053662