Double (basketball) The following is a list of regular season triple-double leaders: A quadruple-double is defined as a performance in which a player accumulates a double digit number total in four of five statistical categories—points, rebounds, assists, steals and blocked shots—in a game. This feat is extremely rare: only four players have officially recorded a quadruple-double in National Basketball Association (NBA) history. The first American male player above the high school level to officially record a quadruple-double was Nate Thurmond, who achieved this feat in 1974 while playing for the NBA's Chicago Bulls. The first American female player above the high school
Double beta decay or double beta decay are predicted to be very long; hence, quadruple beta decay is unlikely to be realized. The eight candidate nuclei for quadruple beta decay include Zr, Xe, and Nd capable of quadruple beta-minus decay, and Xe, Ba, Gd, and Dy capable of quadruple beta-plus decay or electron capture. In theory, quadruple beta decay may be experimentally observable in three of these nuclei, with the most promising candidate being Nd. Double beta decay In nuclear physics, double beta decay is a type of radioactive decay in which two neutrons are simultaneously transformed into two protons, or vice versa,