Abstract
AbstractWe study the $${\bar{K}} p \rightarrow Y K{\bar{K}} \pi $$
K
¯
p
→
Y
K
K
¯
π
reactions with $${\bar{K}} = {\bar{K}}^0, K^-$$
K
¯
=
K
¯
0
,
K
-
and $$Y=\Sigma ^0, \Sigma ^+, \Lambda $$
Y
=
Σ
0
,
Σ
+
,
Λ
, in the region of $$K{\bar{K}} \pi $$
K
K
¯
π
invariant masses of $$1200-1550$$
1200
-
1550
MeV. The strong coupling of the $$f_1(1285)$$
f
1
(
1285
)
resonance to $$K^* {\bar{K}}$$
K
∗
K
¯
makes the mechanism based on $$K^*$$
K
∗
exchange very efficient to produce this resonance observed in the $$K{\bar{K}} \pi $$
K
K
¯
π
invariant mass distribution. In addition, in all these reactions one observes an associated peak at 1420 MeV which comes from the $$K^* {\bar{K}}$$
K
∗
K
¯
decay mode of the $$f_1(1285)$$
f
1
(
1285
)
when the $$K^*$$
K
∗
is placed on shell at higher invariant masses. We call the attention to the possibility that the peaks observed in other reactions where the “$$f_1(1420)$$
f
1
(
1420
)
” is observed have a similar origin.
Funder
National Natural Science Foundation of China
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
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