The model contains baryon-(and lepton)-number-violating (BNV) four-fermion interactions: tbμc, tbue, tτdu. Note all three flavour variations are controlled by the same parameters ({{{aaa}}}, {{{bbb}}}, {{{ccc}}}, {{{ddd}}} and primed analogues). These interactions for instance lead to the t→b̅c̅μ⁺ decay and ub→t̅e⁺ single top production in association with a single lepton.

Following [https://arxiv.org/abs/1107.3805 1107.3805], the implemented mass-eigenstate operators take the form:
\\[[Image(operators-s-t.png)]]\\
Relations between the parameters above and those of the following gauge-eigenstate basis:
\\[[Image(operators-1-5.png)]]\\
are
\\[[Image(operators-relations.png)]]\\
where the various {{{V}}}'s are the rotations between mass- and gauge eigenstates.

UFO model: [attachment:bnv-ufo.tar.gz]

Please refer to: [https://arxiv.org/abs/1107.3805]

Contact person: Gauthier Durieux