New limits on the resonant absorption of solar axions obtained with a $$^\mathbf {169}$$Tm-containing cryogenic detector
New limits on the resonant absorption of solar axions obtained with a $$^\mathbf {169}$$Tm-containing cryogenic detector
Abstract A search for resonant absorption of solar axions by $$^{169}\mathrm {Tm}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mrow /><mml:mn>169</mml:mn></mml:msup><mml:mi>Tm</mml:mi></mml:mrow></mml:math> nuclei was carried out. A newly developed approach involving low-background cryogenic bolometer based on $$\mathrm {Tm}_{3} \mathrm {Al}_{5} \mathrm {O}_{12}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Tm</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Al</mml:mi><mml:mn>5</mml:mn></mml:msub><mml:msub><mml:mi>O</mml:mi><mml:mn>12</mml:mn></mml:msub></mml:mrow></mml:math> crystal was used that allowed for significant improvement of sensitivity in comparison with …