TY - RPRT TI - 2 νββ spectrum in chiral effective field theory AU - el Morabit, Saad [Univ. of Amsterdam (Netherlands); Nikhef Theory Group, Amsterdam (Netherlands)] (ORCID:0009000001938891) AU - Bouabid, Ryan [Duke Univ., Durham, NC (United States)] (ORCID:000000017824357X) AU - Cirigliano, Vincenzo [Univ. of Washington, Seattle, WA (United States)] (ORCID:000000029056754X) AU - de Vries, Jordy [Univ. of Amsterdam (Netherlands); Nikhef Theory Group, Amsterdam (Netherlands)] (ORCID:0000000150375108) AU - Gráf, Lukáš [Nikhef Theory Group, Amsterdam (Netherlands); Charles Univ., Prague (Czech Republic)] (ORCID:0000000161819210) AU - Mereghetti, Emanuele [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000286235796) PY - 2025 DO - 10.1007/jhep06(2025)082 UR - https://www.osti.gov/biblio/2570651 ID - 2570651 ER -