The weak nuclear force is transmitted by gauge bosons, these bosons are W+, W- and Z bosons.

Bosons are the carriers of forces. Examples are the photon, gluon, W and Z bosons, and the not yet found Higgs boson and the graviton.

The W bosons are named after the weak force. The additional particle was named the "Z particle", it was the last additional particle needed by the model - the W bosons had already been named - and that it has zero electric charge.

The strong force has the gluon and the weak force has the w and z bosons

quarks and leptons, held together by gluons, W+ bosons, W- bosons, photons, and gravitons