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research
Single spin asymmetry measurements for
Ο
0
\pi^0
Ο
0
inclusive productions in
p
+
p
β
β
Ο
0
+
X
p+p_{\uparrow} \to \pi^0 + X
p
+
p
β
β
β
Ο
0
+
X
and
\pi^-+\p_{\uparrow}\to \pi^0+X
reactions at 70 and 40 GeV respectively
Authors
N. S. Borisov
A. M. Davidenko
+22Β more
A. A. Derevschikov
A. N. Fedorov
V. N. Grishin
V. Yu. Khodyrev
A. A. Lukhanin
V. N. Matafonov
Yu. A. Matulenko
Yu. M. Melnick
A. P. Meschanin
V. V. Mochalov
A. B. Neganov
L. V. Nogach
S. B. Nurushev
Y. A. Plis
A. F. Prudkoglyad
M. G. Ryskin
P. A. Semenov
K. E. Shestermanov
L. F. Soloviev
Y. A. Usov
A. N. Vasiliev
A. E. Yakutin
Publication date
24 January 2005
Publisher
'World Scientific Pub Co Pte Lt'
Doi
Cite
View
on
arXiv
Abstract
The inclusive
Ο
0
\pi^0
Ο
0
asymmetries were measured in reactions
p
+
p
β
β
Ο
0
+
X
p+p\uparrow \to \pi^0+X
p
+
p
ββ
Ο
0
+
X
and
Ο
β
+
p
β
β
Ο
0
+
X
\pi^-+p\uparrow \to \pi^0+X
Ο
β
+
p
ββ
Ο
0
+
X
at 70 and 40 GeV/c respectively. The measurements were made at the central region (for the first reaction) and asymmetry is compatible with zero in the entire measured
p
T
p_T
p
T
β
region. For the second reaction the asymmetry is zero for small
x
F
x_F
x
F
β
region (
β
0.4
<
x
F
<
β
0.1
,
0.5
<
p
T
(
G
e
V
/
c
)
<
1.5
-0.4<x_F<-0.1, 0.5<p_T(GeV/c) <1.5
β
0.4
<
x
F
β
<
β
0.1
,
0.5
<
p
T
β
(
G
e
V
/
c
)
<
1.5
) and increases with growth of
β£
x
F
β£
\mid x_F\mid
β£
x
F
β
β£
. Averaged over the interval
β
0.8
<
x
F
<
β
0.4
,
1
<
p
T
(
G
e
V
/
c
)
<
2
-0.8<x_F<-0.4, 1<p_T(GeV/c)<2
β
0.8
<
x
F
β
<
β
0.4
,
1
<
p
T
β
(
G
e
V
/
c
)
<
2
the asymmetry was
β
(
13.8
Β±
3.8
)
-(13.8\pm 3.8)%
β
(
13.8
Β±
3.8
)
.Comment: 4 pages, 2 figures; Presented at SPIN-2004 at Trieste, October 10-16,200
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Last time updated on 11/12/2019