Search for post-inflationary QCD axions with a quantum-limited tunable microwave receiver

Giosuè Sardo Infirri, David Alesini, Caterina Braggio +22

A search for cosmological axions has been performed by scanning a frequency region of $38$MHz centered at about $10.2$GHz, corresponding to an axion mass $m_a\simeq 42\hat{I}¼$eV.…