Interactions with this particle can explain the key difference between the strength of the electromagnetic and weak forces, though it remains the only undiscovered Standard Model particle.
Technicolor provides an alternative to this entity, and one model disregarding it considers particles typically held as fundamental to be composite, the Abbot-Farhi model. Possessing isospin +1 and 0, this particle is the only spin-0 particle in the Standard Model. Interactions with this particle can explain the key difference between the strength of the electromagnetic and weak forces, though it remains the only undiscovered Standard Model particle. For 10 points, identify this particle, whose interactions with matter would hypothetically explain why some particles have mass.
Technicolor provides an alternative to this entity, and one model disregarding it considers particles typically held as fundamental to be composite, the Abbot-Farhi model.
{Higgs boson} [accept Higgs mechanism before “this particle”; prompt on Higgs]