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Searches for the light invisible axion-like particle in K+→π+π0a decay

delete2024-03-13
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OA
AI
A
A. S. Sadovsky *
A
A. P. Filin
S
S.A. Akimenko
A
A. V. Artamonov
A
A.M. Blik
V
V. N. Bychkov
S
S. V. Donskov
S
S. Filippov
A
A. M. Gorin
E
E. Gushchin
A
A. V. Inyakin
G
G. D. Kekelidze
G
G.V. Khaustov
S
S. Kholodenko
A
A. A. Khudyakov
V
V. N. Kolosov
V
V. I. Kravtsov
Y
Y. Kudenko
A
A. V. Kulik
V
V. Kurshetsov
V
V. A. Lishin
V
V. Lysan
M
M. V. Medynsky
V
V. Obraztsov
A
A. V. Okhotnikov
V
V. A. Polyakov
A
A. Yu. Polyarush
V
V. Romanovsky
V
V. I. Rykalin
V
V. D. Samoylenko
I
I. S. Tiurin
V
V. A. Uvarov
O
O. P. Yushchenko
B
B. Zh. Zalikhanov
DOI：10.1140/epjc/s10052-024-12444-ydelete
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Abstract

Abstract

En 中文
A high-statistics data sample of the K(+ )decays is recorded by the OKA collaboration. A missing mass anal-ysis is performed to search for a light invisible pseudoscalar axion-like particle (ALP)a in the decay K+->pi(+)pi(0)a. No signal is observed, and the upper limits for the branching ratio of the decay are calculated. The 90% confidence level upper limit changes from 2.510(-6)to 210(-7 )for the ALP mass from 0 to 200 MeV/c(2), except for the region of pi(0 )mass, where the upper limit is 4.410-6.

Journal

European Physical Journal C cover
European Physical Journal C
IF:
4.8
Papers:
1.8W
Citations:
4.7W

Organization

R
russian academy of sciences
Scholars:
8.9W
Papers: 5.9W
Citations: 60
I
institute of high energy physics - ihep
Scholars:
2.2K
Papers: 1.6K
Citations: 0
N
national research centre - kurchatov institute
Scholars:
10.0K
Papers: 5.4K
Citations: 1
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