Jet Charge: A new tool to probe the anomalous $Zb\bar{b}$ couplings at the EIC

Abstract

We propose to utilize the average jet charge weighted single-spin asymmetry $A_e^{bQ}$ in the neutral current DIS scattering with one $b$-tagged jet produced at the EIC to probe the $Zb\bar{b}$ interactions. This novel observable is sensitive to the axial-vector component of the $Zb\bar{b}$ coupling and is complementary to the single-spin asymmetry measurement at the EIC and the $gg\to Zh$ cross section measurement at the HL-LHC in the determination of the $Zb\bar{b}$ couplings. We show that the apparent degeneracy of the $Zb\bar{b}$ couplings, implied by the LEP and SLC precision electroweak data, can be broken by the $A_e^{bQ}$ measurement at the EIC. With a large enough integrated luminosity collected at the EIC, the measurement of $A_e^{bQ}$ could also resolve the long-standing discrepancy of $A_{\mathrm{FB}}^b$ at the LEP, strongly dependent on the $b$-tagging efficiency.

6 pages, 4 figures, published version

References in corpus (2)

• A custodial symmetry for Zbb
• Calculating the Charge of a Jet

Cited by in corpus (13)

• Machine learning-based jet and event classification at the Electron-Ion Collider with applications to hadron structure and spin physics
• Heavy Neutral Leptons at the Electron-Ion Collider
• Neutrino-tagged jets at the Electron-Ion Collider
• Displaced Signals of Hidden Vectors at the Electron-Ion Collider
• Discriminating between Higgs Production Mechanisms via Jet Charge at the LHC
• Precision three-dimensional imaging of nuclei using recoil-free jets
• Probing the $H\gamma \gamma$ coupling via Higgs exclusive decay into quarkonia plus a photon at the HL-LHC
• N${}^3$LL + $\mathcal{O}({\alpha }_s^2)$ predictions of lepton-jet azimuthal angular distribution in deep-inelastic scattering
• Testing Lepton Flavor Universality at the Electron-Ion Collider
• Probing top-quark electroweak couplings indirectly at the Electron-Ion Collider
• The $Zb\bar{b}$ vertex in a left-right model
• Accommodating the CDF W-boson Mass Measurement in the Beautiful Mirror Model
• Jet Charge with Global Event Shapes: Probing Quark Flavor Dynamics