Search for DeltaS = 2 nonleptonic hyperon decays.
A sensitive search for the rare decays Omega(-)--> Lambdapi(-) and Xi(0)--> ppi(-) has been performed using data from the 1997 run of the HyperCP (Fermilab E871) experiment. Limits on other such processes do not exclude the possibility of observable rates for |DeltaS| = 2 nonleptonic hyperon decays, provided the decays occur through parity-odd operators. We obtain the branching-fraction limits B(Omega(-)-->Lambdapi(-)) < 2.9 x 10(-6) and B(Xi(0)--> ppi(-)) < 8.2 x 10(-6), both at 90% confidence level.
White
C G
CG
Illinois Institute of Technology, Chicago, Illinois 60616, USA.
Burnstein
R A
RA
Chakravorty
A
A
Chan
A
A
Chen
Y C
YC
Choong
W S
WS
Clark
K
K
Dukes
E C
EC
Durandet
C
C
Felix
J
J
Gidal
G
G
Gu
P
P
Gustafson
H R
HR
Ho
C
C
Holmstrom
T
T
Huang
M
M
James
C
C
Jenkins
C M
CM
Kaplan
D M
DM
Lederman
L M
LM
Leros
N
N
Longo
M J
MJ
Lopez
F
F
Lu
L C
LC
Luebke
W
W
Luk
K B
KB
Nelson
K S
KS
Park
H K
HK
Perroud
J-P
JP
Rajaram
D
D
Rubin
H A
HA
Teng
P K
PK
Volk
J
J
White
S L
SL
Zyla
P
P