Lower Limit on the Double-Alpha Decay of Ra224RemoveP. Belli, R. Bernabei, F. Cappella, V. Caracciolo, R. Cerulli, F. A. Danevich, V. Yu. Denisov, A. Incicchitti, D. V. Kasperovych, V. R. Klavdiienko, A. Leoncini, and V. I. TretyakPhys. Rev. Lett. 137, 202501 (2026)
