Academic Journal
Searches for the light invisible axion-like particle in $$K^{+} \rightarrow \pi ^{+}\pi ^{0} a$$ K + → π + π 0 a decay
| Title: | Searches for the light invisible axion-like particle in $$K^{+} \rightarrow \pi ^{+}\pi ^{0} a$$ K + → π + π 0 a decay |
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| Authors: | A. S. Sadovsky, A. P. Filin, S. A. Akimenko, A. V. Artamonov, A. M. Blik, V. N. Bychkov, S. V. Donskov, S. N. Filippov, A. M. Gorin, E. N. Gushchin, A. V. Inyakin, G. D. Kekelidze, G. V. Khaustov, S. A. Kholodenko, A. A. Khudyakov, V. N. Kolosov, V. I. Kravtsov, Yu. G. Kudenko, A. V. Kulik, V. F. Kurshetsov, V. A. Lishin, V. M. Lysan, M. V. Medynsky, V. F. Obraztsov, A. V. Okhotnikov, V. A. Polyakov, A. Yu. Polyarush, V. I. Romanovsky, V. I. Rykalin, V. D. Samoylenko, I. S. Tiurin, V. A. Uvarov, O. P. Yushchenko, B. Zh. Zalikhanov |
| Source: | European Physical Journal C: Particles and Fields, Vol 84, Iss 3, Pp 1-6 (2024) |
| Publisher Information: | SpringerOpen, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| Subject Terms: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| More Details: | Abstract A high-statistics data sample of the $$K^{+}$$ K + decays is recorded by the OKA collaboration. A missing mass analysis is performed to search for a light invisible pseudoscalar axion-like particle (ALP) a in the decay $$K^{+} \rightarrow \pi ^{+} \pi ^{0} a$$ K + → π + π 0 a . No signal is observed, and the upper limits for the branching ratio of the decay are calculated. The $$90\%$$ 90 % confidence level upper limit changes from $$2.5\cdot 10^{-6}$$ 2.5 · 10 - 6 to $$2\cdot 10^{-7}$$ 2 · 10 - 7 for the ALP mass from 0 to 200 MeV/ $$c^{2}$$ c 2 , except for the region of $$\pi ^{0}$$ π 0 mass, where the upper limit is $$4.4\cdot 10^{-6}$$ 4.4 · 10 - 6 . |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1434-6052 |
| Relation: | https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-024-12444-y |
| Access URL: | https://doaj.org/article/a35f094a75924a45b0204f0575fc5bcd |
| Accession Number: | edsdoj.35f094a75924a45b0204f0575fc5bcd |
| Database: | Directory of Open Access Journals |
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| ISSN: | 14346052 |
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| DOI: | 10.1140/epjc/s10052-024-12444-y |
| Published in: | European Physical Journal C: Particles and Fields |
| Language: | English |