Experimental Observation of a Heavy Particle<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi></mml:math>J.J. Aubert, Y. Y. Lee, M. Chen et al.|Physical Review Letters|1974Cited by 1.6k
Nonobservation of Heavier<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi></mml:math>Particles from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo>−</mml:mo><mml:mi>N</mml:mi></mml:math>ReactionsJ.J. Aubert, Y. Y. Lee, U. Becker et al.|Physical Review Letters|1974Cited by 24