ar X iv : h ep - p h / 96 02 41 6 v 1 2 8 Fe b 19 96 High E T jets at pp̄ collisions and triple gauge boson vertex

High E T jets at p¯ p collisions and triple gauge boson vertex Abstract Triple gauge boson vertex, which is inherent to the model of a dynamical breaking of the electroweak symmetry, leads to an effective four-fermion interaction of quarks. Calculation of the effective coupling constant in the framework of the model results in agreement with recent information on enhancement of inclusive high E T jet cross section at √ s = 1.8 T eV. Thus this effect may be connected with triple gauge boson vertex with coupling constant λ ≈ 0.7, which will clearly manifest itself at the soon forthcoming LEP II. In the recent Fermilab experiment [1] the effect of an enhanced cross section of inclusive jets production at √ s = 1.8 T eV with E T > 200 GeV is obtained. The authors state, that this effect could be connected with consequences of quark compositeness, leading e.g. to effective four-fermion interaction [2] L ef f = ± 4 π 2 Λ 2 C ¯ q L γ µ q L ¯ q L γ µ q L ; (1) where q corresponds to light quark pair u, d and currents in interaction (1) are isoscalar. The best agreement of data [1] with (1) is achieved for Λ C = 1.6 T eV. (2) In this letter we would point out, that effective four-fermion interaction appears not only in the case of quarks substructure but also in the case of an existence of triple gauge vertex (∼ ǫ abc W a µν W b νρ W c ρ), which appears in a selfconsistent way in the model of a dynamical breaking of the electroweak symmetry [3 – 6]