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High Energy Physics - Phenomenology

arXiv:2411.13845 (hep-ph)
[Submitted on 21 Nov 2024]

Title:Transverse spin effects and light-quark dipole moments at lepton colliders

Authors:Xin-Kai Wen, Bin Yan, Zhite Yu, C.-P. Yuan
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Abstract:We propose to probe light-quark dipole interactions at lepton colliders using the azimuthal asymmetry of a collinear dihadron pair $(h_1h_2)$ produced in association with another hadron $h'$. This asymmetry, arising from quantum interference in the quark spin space, is exclusively sensitive to dipole interactions at the leading power of the new physics scale and simultaneously probes both the real and imaginary components of the dipole couplings. By combining all possible channels of $h'$, this method allows for disentangling the up and down quark dipole moments and has the potential to significantly strengthen current constraints by one to two orders of magnitude.
Comments: 6 pages, 3 figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex); Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
Report number: JLAB-THY-24-4236,MSUHEP-24-022
Cite as: arXiv:2411.13845 [hep-ph]
  (or arXiv:2411.13845v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2411.13845

Submission history

From: Bin Yan [view email]
[v1] Thu, 21 Nov 2024 05:06:28 UTC (181 KB)
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