Anomalous triple-gauge-boson interactions in vector-boson pair production with Recola2

Abstract

Diboson production at the LHC is a process of great importance both in the context of tests of the SM and for direct searches for new physics. In this paper we present a phenomenological study of WW (→ e + ν e μ −ν μ ), WZ (→ e − ν e μ + μ − ), and ZZ (→ e + e − μ + μ − ) production considering event selections of interest for the anomalous triplegauge-boson-coupling searches at the LHC: we provide theoretical predictions within the Standard Model at NLO QCD and NLO EW accuracy and study the effect of the anomalous triple-gauge-boson interactions at NLO QCD. For WW and ZZ the contribution of the loop-induced gg → W + W − and gg → ZZ processes is included. Anomalous triple-gaugeboson interactions are parametrized in the EFT framework. This paper is the first application of Recola2 in the EFT context.

On the electromigration of charged fluorophore‐labeled oligosaccharides in polyethylene oxide solutions

“…The plots in Fig. 2 revealed excellent linearity (r 2 Ͼ 0.999; RSD of the triplicate measurements: 2.74%) in all instances with using k = 2/3, suggesting that the electrophoretic mobility of the APTS-labeled maltooligosaccharides is proportional to their molecular surface area, i.e., rod-like molecular shapes, as was proposed earlier by Chiesa and Horváth [4] for ANTS-labeled maltodextrins. In a similar fashion, the APTS-labeled glucose ␣1-4 oligomers composed of identical monosaccharide residues with a terminal location of the three negative charge holding fluorophore tag on each.…”

“…CE and CGE are among the most widely accepted separation techniques for the analysis of biologically important polymers, such as nucleic acids, proteins, and complex carbohydrates [1][2][3][4]. Albeit the separation mechanisms for DNA and proteins have been thoroughly investigated in the past decades, similar theoretical treatments for the electrophoretic migration of sugar oligomers in narrow bore capillaries have just been started [5].…”

The Gauge-Higgs legacy of the LHC run II

“…For our kinematic distributions this is less clear, so we have checked that our approach is approximately correct [29,76]. Corrections to diboson production have been calculated and should eventually be included [77].…”

Precision diboson measurements at hadron colliders

“…On the other side, for the interference case, the κ-factor shows a slightly decreasing pattern with the energy of the system, reaching a value of ∼ 2 for m T W Z ∼ 1 TeV. Furthermore helicity selection rules are not applicable at NLO level leading to a mild restoration of the interference effects between the SM and BSM contributions [7,11]. Additionally the offshellness of the vector bosons also leads to the restoration of the interference, with the strength of the effect scaling as g 2 [35], similarly to the effect of the one loop electroweak corrections, which we ignore in the present study.…”

“…In this paper we update previous analyses by considering both the pp → W Z and pp → W γ diboson processes with the inclusion of the O 3W operator and carefully treating QCD nextto-leading-order (NLO) effects, which we find to be important since they partially restore the interference between the SM and BSM amplitudes (for the previous studies of the NLO effects in the presence of the higher dimensional operators see [9][10][11]). By closely following existing experimental analyses targeting diboson final states, we provide combined bounds in the c 3W −c 3W plane showing the potentiality of the HL-and HE-LHC options in testing these higher dimensional operators.…”