YN scattering data: AH99
| Authors: |
J.K. Ahn,
B. Bassalleck,
M.S. Chung,
W.M. Chung,
H. En'yo,
T. Fukuda,
H. Funahashi,
Y. Goto,
A. Higashi,
M. Ieiri,
M. Iinuma,
K. Imai,
Y. Itow,
H. Kanda,
Y.D. Kim,
J.M. Lee,
A. Masaike,
Y. Matsuda,
S. Mihara,
I.S. Park,
Y.M. Park,
N. Saito,
Y.M. Shin,
K.S. Sim,
R. Susukita,
R. Takashima,
F. Takeutchi,
P. Tlustý,
S. Yamashita,
S. Yokkaichi,
M. Yoshida
|
| Reference: |
Nucl. Phys. A648 (1999), 263-279
|
| Group: |
KEK - PS E251 collaboration
|
The experiment:
A 1.64 GeV/c π+ beam at the 12 GeV Proton Synchroton
at KEK was used to produce Σ+ particles through the
(π+,K+) reaction in the scintillating fiber (SCIFI)
target. The tracks left by scattering Σ+
in the SCIFI target produced visual image data which
were analyzed using an automatic track recognition
program. After analyzing, of the remaining candidate events
11 Σ+ p scattering events were selected by
eye-scanning.
The data:
|
Σ+ p → Σ+ p
|
differential cross section (DSG)
|
|
|
based on 11 events in the range 300 - 600 MeV/c
cos(theta) DSG [mb]
-0.4 - 0.1 2.2 +3.2 -1.1
0.1 - 0.6 3.3 +2.5 -1.2
|
Notes:
The uncertainties are the statistical uncertainties only.
Overall systematic uncertainties
are estimated to be about 16% of the obtained cross section
