Interferometry of direct photons in central 208Pb + 208Pb collisions at 158A GeV.
Two-particle correlations of direct photons were measured in central 208Pb+208Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100<K(T)<300 MeV/c and compared to radii extracted from charged pion correlations. The yield of soft direct photons, K(T)<300 MeV/c, was extracted from the correlation strength and compared to theoretical calculations.
Aggarwal
M M
MM
University of Panjab, Chandigarh 160014, India.
Ahammed
Z
Z
Angelis
A L S
AL
Antonenko
V
V
Arefiev
V
V
Astakhov
V
V
Avdeitchikov
V
V
Awes
T C
TC
Baba
P V K S
PV
Badyal
S K
SK
Bathe
S
S
Batiounia
B
B
Bernier
T
T
Bhalla
K B
KB
Bhatia
V S
VS
Blume
C
C
Bucher
D
D
Büsching
H
H
Carlén
L
L
Chattopadhyay
S
S
Decowski
M P
MP
Delagrange
H
H
Donni
P
P
Dutta Majumdar
M R
MR
el Chenawi
K
K
Dubey
A K
AK
Enosawa
K
K
Fokin
S
S
Frolov
V
V
Ganti
M S
MS
Garpman
S
S
Gavrishchuk
O
O
Geurts
F J M
FJ
Ghosh
T K
TK
Glasow
R
R
Guskov
B
B
Gustafsson
H A
HA
Gutbrod
H H
HH
Hrivnacova
I
I
Ippolitov
M
M
Kalechofsky
H
H
Karadjev
K
K
Karpio
K
K
Kolb
B W
BW
Kosarev
I
I
Koutcheryaev
I
I
Kugler
A
A
Kulinich
P
P
Kurata
M
M
Lebedev
A
A
Löhner
H
H
Luquin
L
L
Mahapatra
D P
DP
Manko
V
V
Martin
M
M
Martínez
G
G
Maximov
A
A
Miake
Y
Y
Mishra
G C
GC
Mohanty
B
B
Mora
M J
MJ
Morrison
D
D
Moukhanova
T
T
Mukhopadhyay
D S
DS
Naef
H
H
Nandi
B K
BK
Nayak
S K
SK
Nayak
T K
TK
Nianine
A
A
Nikitine
V
V
Nikolaev
S
S
Nilsson
P
P
Nishimura
S
S
Nomokonov
P
P
Nystrand
J
J
Oskarsson
A
A
Otterlund
I
I
Peitzmann
T
T
Peressounko
D
D
Petracek
V
V
Phatak
S C
SC
Pinganaud
W
W
Plasil
F
F
Purschke
M L
ML
Rak
J
J
Raniwala
R
R
Raniwala
S
S
Rao
N K
NK
Retiere
F
F
Reygers
K
K
Roland
G
G
Rosselet
L
L
Roufanov
I
I
Roy
C
C
Rubio
J M
JM
Sambyal
S S
SS
Santo
R
R
Sato
S
S
Schlagheck
H
H
Schmidt
H R
HR
Schutz
Y
Y
Shabratova
G
G
Shah
T H
TH
Sibiriak
I
I
Siemiarczuk
T
T
Silvermyr
D
D
Sinha
B C
BC
Slavine
N
N
Söderström
K
K
Sood
G
G
Sørensen
S P
SP
Stankus
P
P
Stefanek
G
G
Steinberg
P
P
Stenlund
E
E
Sumbera
M
M
Svensson
T
T
Tsvetkov
A
A
Tykarski
L
L
v d  Pijll
E C
EC
von  Eijndhoven
N
N
von  Nieuwenhuizen
G J
GJ
Vinogradov
A
A
Viyogi
Y P
YP
Vodopianov
A
A
Vörös
S
S
Wysłouch
B
B
Young
G R
GR