Open AccessSearch for hadronic solar axions
Author(s) -
Z. A. Akhmatov,
Sergey S. Berezin,
Yu. M. Gavrilyuk,
A. M. Gangapshev,
A. Derbin,
I. Drachnev,
V. V. Kazalov,
A. Kh. Khokonov,
V. Kobychev,
V. V. Kuzminov,
V. Muratova,
S. I. Panasenko,
S. S. Ratkevich,
D. A. Tekueva,
E. Unzhakov,
A. Yu. Zavrazhnov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1787/1/012036
Subject(s) - physics , axion , particle physics , dark matter
Resonance excitation of the 83 Kr first nuclear level ( E = 9.4 keV) by solar axions formed via the Primakoff mechanism and via an M1-transition in the 83 Kr nucleus in the Sun is searched. The γ-and x-ray photons and the conversion and Auger electrons arising from the excited-level relaxation are detected with a proportional counter in the underground low-background facility of Baksan Neutrino Observatory. The following experimental constraint is obtained for the product of the axion-photon coupling constant and the axion mass: | g A γ m A | ≼ 6.16 × 10 −17 . In the framework of the hadronic-axion model, this corresponds to a new axion-mass constraint of m A ≼ 12.6 eV at 95% coincidence level (C.L.). In case of pure hadronic interaction the upper limit for axion-nucleon coupling is | g AN 3 − g AN 0 | ≼ 8.3 × 10 −7 at 95% C.L., which corresponds to upper limit for hadrionic axion mass: m A ≼ 64 eV at 95% C.L. with the generally accepted values S = 0.5 and z = 0.56.