Probing a scalar singlet-catalyzed electroweak phase transition with resonant di-Higgs boson production in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>4</mml:mn><mml:mi>b</mml:mi></mml:math> channel
Physical review. D/Physical review. D.