Upgraded LHC experiments as a check of non-perturbative effects of the Electro-Weak Interaction

Abstract

Abstract. Recently reported diphoton excesse at LHC is interpreted to be connected with heavy WW zero spin resonances. The resonances appears due to the wouldbe anomalous triple interaction of the weak bosons, which is defined by coupling constant λ. The γγ 750 GeV anomaly is considered to correspond to weak isotopic spin 0 pseudoscalar state. We obtain estimates for the effect, which qualitatively agree with ATLAS data. Effects are predicted in a production of W + W − , (Z, γ)(Z, γ) via resonance X PS with M PS 750 GeV, which could be reliably checked at the upgraded LHC at √ s = 13 T eV. In coupling constant of the triple anomalous interaction is estimated to be λ = − 0.010 ± 0.005 in an agreement with existing restrictions. Specific predictions of the hypothesis are significant effects in decay channels X PS → γ l + l

Non-perturbative effects of the electroweak interaction at the LHC

“…SM results for cross-sections of processes p + p → ttV at √ s = 13 T eV and predictions for ratios µ being due to effective interaction(12).…”

“…This solution can be related just to QCD [9]. The second solution, on the contrary, corresponds to a large effective cut-off and the relatively small gauge coupling, that may be related to the electro-weak interaction [12].…”

“…Let us draw attention to process (15). The dependence on a transverse momentum of the W boson allows to extract the effect of interaction (12). In TABLE II we show this dependence for three value of G Wtt one of which is just value (13) and the two others are 10% up and down.…”

“…were b, just as above, takes 3 values. Solutions (10,11) provide the following values of parameters G W tt in (12) for interaction ( 8) Interaction ( 12) leads to effects in associated top pair production with electroweak bosons W ± , Z, which for the first solution are presented in work [21]. The new data for the process at √ s = 13 T eV [23] results in contradiction with the second solution (14), while is consistent with the first solution (13) as well as with zero value for G W tt .…”

On searches for anomalous WWW interaction at the LHC

“…with form-factor F (p i ), which guarantees effective interaction (1.2) acting in a limited region of the momentum space. A possibility of the spontaneous generation of effective interaction (1.2) was first considered in work [3] and was studied in more details in work [4]. Interaction constant G is connected with conventional definitions in the following way [6].…”