Search for neutrinoless quadruple beta decay of ${}^{136}$Xe in XMASS-I

XMASS Collaboration, K. Abe, K. Hiraide +34

A search for the neutrinoless quadruple beta decay of ${}^{136}$Xe was conducted with the liquid-xenon detector XMASS-I using $327\mathrm{kg}\times 800.0\mathrm{days}$ of the exposure. The…