Electromagnetic dipole moments of the top quark

Abstract

Recent measurements like the t tbar gamma production by CDF as well as the Br(B ->Xs gamma) and ACP (B->Xs gamma) are used to constrain the magnetic and electric dipole moments of the top quark. The B->Xs gamma measurements by themselves define an allowed parameter region that sets up stringent constraints on both dipole moments. Actually, significantly more stringent than previously reported. The measurement by CDF has a 37% error that is too large to set any competitive bounds, for which a much lower 5% error would be required at least. On the other hand, because of the LHC's higher energy (apart from its higher luminosity) the same measurement performed there could indeed further constrain the allowed parameter region given by the B->Xs gamma measurement.

Expanded version to be published in PRD. 14 pages, 3 figures

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Cited by in corpus (34)

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• New Probes for Axion-like Particles at Hadron Colliders
• Top Down Electroweak Dipole Operators
• Measurements of inclusive and differential fiducial cross-sections of $t\bar{t}\gamma$ production in leptonic final states at $\sqrt{s}$ = 13 TeV in ATLAS
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• Measurement of the semileptonic tt-bar gamma production cross section in pp collisions at sqrt(s) = 8 TeV
• Probing $tt\gamma$ and $ttZ$ couplings at the LHeC
• Top Quark Anomalous Electromagnetic Couplings in Photon-Photon Scattering at the LHC
• Measurement of the $t\bar{t}\gamma$ production cross section in proton-proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Probing top quark electromagnetic dipole moments in single-top-plus-photon production
• Measurements of inclusive and differential cross-sections of combined $t\bar{t}\gamma$ and $tW\gamma$ production in the $e\mu$ channel at 13 TeV with the ATLAS detector
• Improved sensitivity on the electromagnetic dipole moments of the top quark in $\gamma \gamma$, $\gamma {\gamma }^{\ast }$ and ${\gamma }^{\ast }{\gamma }^{\ast }$ collisions at the CLIC
• Limits on the anomalous $Wtq$ couplings
• Complete NLO corrections to top-quark pair production with isolated photons
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• Measurement of the inclusive and differential $\mathrm{t}\bar{\mathrm{t}}\gamma$ cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Higher-order corrections in $t\bar{t}\gamma$ cross sections
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• FCC-he sensitivity estimates on the anomalous electromagnetic dipole moments of the top-quark
• Climbing to the Top of the ATLAS 13 TeV data
• Projections for model-independent sensitivity estimates on top-quark anomalous electromagnetic couplings at the FCC-he
• Probing the anomalous electromagnetic dipole moments of the top quark in $\gamma p$ collision at the LHC, the HL-LHC and the HE-LHC
• Effects of universal extra dimensions on top-quark electromagnetic interactions
• Measurements of inclusive and differential cross-sections of $t\bar{t}\gamma$ production in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Sensitivity measuring expected on the electromagnetic anomalous couplings in the $t\bar{t}\gamma$ vertex at the FCC-he
• Top quark effective couplings from top-pair tagged photoproduction in $p{e}^{-}$ collisions
• Model-independent sensitivity estimates for the electromagnetic dipole moments of the top quark at the Large Hadron Collider and beyond
• Measurement of the inclusive and differential $\mathrm{t}\overline{\mathrm{t}}\gamma$ cross sections in the single-lepton channel and EFT interpretation at $\sqrt{s}$ = 13 TeV
• Top Quark Electroweak Dipole Moment at a High Energy Muon Collider
• Photon radiation effects in kinematic reconstruction of top quarks
• Inclusive and differential measurements of the $\mathrm{t}\bar{\mathrm{t}}\gamma$ cross section and the $\mathrm{t}\bar{\mathrm{t}}\gamma$ / $\mathrm{t}\bar{\mathrm{t}}$ cross section ratio in proton-proton collisions at $\sqrt{s}$ = 13 TeV