The International Linear Collider (ILC) will allow the precise study of $$e^{-}e^{+} \rightarrow q\bar{q}$$ interactions at different center-of-mass energies from the $$Z$$ -pole to 1 TeV. In this paper, we discuss the experimental prospects for measuring differential observables in $$e^{-}e^{+} \rightarrow b\bar{b}$$ and $$e^{-}e^{+} \rightarrow c\bar{c}$$ at the ILC baseline energies, 250 and 500 GeV. The study is based on full simulation and reconstruction of the International Large Detector (ILD) concept. Two gauge-Higgs unification models predicting new high-mass resonances beyond the Standard Model are discussed. These models predict sizable deviations of the forward–backward observables at the ILC running above the Z mass and with longitudinally polarized electron and positron beams. The ability of the ILC to probe these models via high-precision measurements of the forward–backward asymmetry is discussed. Alternative scenarios at other energies and beam polarization schemes are also discussed, extrapolating the estimated uncertainties from the two baseline scenarios.
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"value": "The International Linear Collider (ILC) will allow the precise study of $$e^{-}e^{+} \\rightarrow q\\bar{q}$$ <math> <mrow> <msup> <mi>e</mi> <mo>-</mo> </msup> <msup> <mi>e</mi> <mo>+</mo> </msup> <mo>\u2192</mo> <mi>q</mi> <mover> <mrow> <mi>q</mi> </mrow> <mrow> <mo>\u00af</mo> </mrow> </mover> </mrow> </math> interactions at different center-of-mass energies from the $$Z$$ <math> <mi>Z</mi> </math> -pole to 1 TeV. In this paper, we discuss the experimental prospects for measuring differential observables in $$e^{-}e^{+} \\rightarrow b\\bar{b}$$ <math> <mrow> <msup> <mi>e</mi> <mo>-</mo> </msup> <msup> <mi>e</mi> <mo>+</mo> </msup> <mo>\u2192</mo> <mi>b</mi> <mover> <mrow> <mi>b</mi> </mrow> <mrow> <mo>\u00af</mo> </mrow> </mover> </mrow> </math> and $$e^{-}e^{+} \\rightarrow c\\bar{c}$$ <math> <mrow> <msup> <mi>e</mi> <mo>-</mo> </msup> <msup> <mi>e</mi> <mo>+</mo> </msup> <mo>\u2192</mo> <mi>c</mi> <mover> <mrow> <mi>c</mi> </mrow> <mrow> <mo>\u00af</mo> </mrow> </mover> </mrow> </math> at the ILC baseline energies, 250 and 500 GeV. The study is based on full simulation and reconstruction of the International Large Detector (ILD) concept. Two gauge-Higgs unification models predicting new high-mass resonances beyond the Standard Model are discussed. These models predict sizable deviations of the forward\u2013backward observables at the ILC running above the Z mass and with longitudinally polarized electron and positron beams. The ability of the ILC to probe these models via high-precision measurements of the forward\u2013backward asymmetry is discussed. Alternative scenarios at other energies and beam polarization schemes are also discussed, extrapolating the estimated uncertainties from the two baseline scenarios."
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