Lancaster: American Physical Society, 1957. 1st Edition. FIRST EDITION IN ORIGINAL WRAPS of the existence of the KL Meson. The long-lived neutral kaon is called the KL ("K-long") and decays primarily into three pions. In particle physics, a kaon also called a K meson and denoted K is any one of a group of four mesons distinguished by the fact that they carry a quantum number called strangeness. In the quark model they are understood to contain a strange quark (or antiquark), paired with an up or down antiquark (or quark). Item #82
CONDITION & DETAILS: Lancaster: American Physical Society 105, March 15, 1957. Very slight and small scuff on rear wrap; small spot on front wrap. Very good condition.