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