Probing the effects of dimension-eight operators describing anomalous neutral triple gauge boson interactions at FCC-hh

Şenol, A.; Denizli, H.; Yilmaz, A.; Cakir, I. Türk; Oyulmaz, Kaan Yüksel; Karadeniz, Özlem; Çakır, O.

doi:10.1016/j.nuclphysb.2018.08.018

Cited by 34 publications

(19 citation statements)

References 27 publications

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“…It is also known that considerable attention has been paid to the investigation of anomalous triple gauge boson couplings of the electroweak sector [6][7][8][9][10][11][12][13]. The interest in studying these couplings is mainly due to the possibility of providing a better understanding of the electroweak symmetry breaking mechanism and tests the predictions in collider experiments.…”

Section: Introductionmentioning

confidence: 99%

Remarks on an Anomalous Triple Gauge Boson Couplings

Gaete

Helayël-Neto

Ospedal

2021

Advances in High Energy Physics

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We address the effect of an anomalous triple gauge boson couplings on a physical observable for the electroweak sector of the Standard Model, when the S U 2 L ⊗ U 1 Y symmetry is spontaneously broken by the Higgs mechanism to U 1 e m . Our calculation is done within the framework of the gauge-invariant, but path-dependent variable formalism is an alternative to the Wilson loop approach. Our result shows that the interaction energy is the sum of a Yukawa and a linear potential, leading to the confinement of static probe charges. The point we wish to emphasize, however, is that the anomalous triple gauge boson couplings ( Z γ γ ) contributes to the confinement for distances on the intranuclear scale.

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Section: Introductionmentioning

confidence: 99%

Remarks on an Anomalous Triple Gauge Boson Couplings

Gaete

Helayël-Neto

Ospedal

2021

Advances in High Energy Physics

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“…A recent study shows that the existence of dimension-8 operators is necessary as long as the dimension-6 operators exist in the convex geometry point of view to the SMEFT space [54]. Besides, there are cases that the contributions from dimension-6 operators are absent [37,38,[55][56][57][58][59]. Moreover, aQGCs can lead to richer helicity combinations than dimension-6 aTGCs [60].…”

Section: Jhep09(2021)085mentioning

confidence: 99%

Extract the energy scale of anomalous γγ → W+W− scattering in the vector boson scattering process using artificial neural networks

Yang

Chen

Guo

2021

J. High Energ. Phys.

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As a model independent approach to search for the signals of new physics (NP) beyond the Standard Model (SM), the SM effective field theory (SMEFT) draws a lot of attention recently. The energy scale of a process is an important parameter in the study of an EFT such as the SMEFT. However, for the processes at a hadron collider with neutrinos in the final states, the energy scales are difficult to reconstruct. In this paper, we study the energy scale of anomalous γγ → W+W− scattering in the vector boson scattering (VBS) process pp → jjℓ+ℓ−ν$$ \overline{\nu} $$ ν ¯ at the large hadron collider (LHC) using artificial neural networks (ANNs). We find that the ANN is a powerful tool to reconstruct the energy scale of γγ → W+W− scattering. The factors affecting the effects of ANNs are also studied. In addition, we make an attempt to interpret the ANN and arrive at an approximate formula which has only five fitting parameters and works much better than the approximation derived from kinematic analysis. With the help of ANN approach, the unitarity bound is applied as a cut on the energy scale of γγ → W+W− scattering, which is found to has a significant suppressive effect on signal events. The sensitivity of the process pp → jjℓ+ℓ−ν$$ \overline{\nu} $$ ν ¯ to anomalous γγWW couplings and the expected constraints on the coefficients at current and possible future LHC are also studied.

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“…The constraints on dimension eight operatos in the pp → llγ and pp → ννγ processes have been studied for a 100 TeV center of mass energy collider (FCC-hh) [6]. In this analysis we focus on CP-conserving C BW and CP-violating C BB , C BW , C W W couplings via pp → ννγ As it can be seen from Fig.3 and Fig.…”

Section: Introductionmentioning

confidence: 99%

The projections on ZZγ and Zγγ couplings via νν¯γ production in HL-LHC and HE-LHC

et al. 2020

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We investigate the sensitivity of the anomalous dimension-8 neutral triple gauge couplings via process pp → ννγ with fast detector simulation including pile-up effects for the post LHC experiments.The transverse momentum of the final state photon and missing energy transverse distributions are considered in the analysis. We obtain the sensitivity to the C BW /Λ 4 , C BB /Λ 4 , C W W /Λ 4 and C BW /Λ 4 couplings at HL-LHC and HE-LHC with an integrated luminosity of 3 ab −1 and 15 ab −1 , respectively. Finally, our numerical results show that one can reach the constraints at 95% confidence level without systematic error on C BW /Λ 4 , C BB /Λ 4 , C W W /Λ 4 and C BW /Λ 4 couplings for HL-LHC (HE-LHC) as [-0.38;0.38] ([-0.12;0.12]), [-0.21;0.21]([-0.085;0.085]), [-1.08;1.08]([-0.38;0.38]) and [-0.48;0.48]([-0.25;0.25]), respectively. They are better than the experimental limits obtained by LHC .

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Probing the effects of dimension-eight operators describing anomalous neutral triple gauge boson interactions at FCC-hh

Cited by 34 publications

References 27 publications

Remarks on an Anomalous Triple Gauge Boson Couplings

Remarks on an Anomalous Triple Gauge Boson Couplings

Extract the energy scale of anomalous γγ → W+W− scattering in the vector boson scattering process using artificial neural networks

The projections on ZZγ and Zγγ couplings via νν¯γ production in HL-LHC and HE-LHC

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