تقرير
Bounds on charged-lepton flavor violations via resonant scattering
| العنوان: | Bounds on charged-lepton flavor violations via resonant scattering |
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| المؤلفون: | Gabrielli, Emidio, Mele, Barbara, Onofrio, Roberto |
| المصدر: | Physics Letters B 822 (2021) 136656 |
| سنة النشر: | 2021 |
| المجموعة: | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, High Energy Physics - Experiment |
| الوصف: | We explore the possibility of probing flavor violations in the charged-lepton sector by means of high-luminosity lepton-photon and electron-muon collisions, by inverting initial and final states in a variety of decay channels presently used to bound such violations. In particular, we analyse the resonant lepton, $\gamma\, \ell \to \ell^{\prime}$, and neutral-meson, $e^- \mu ^+ \to \phi,\eta,\pi^0\!$, scattering channels, whose cross sections are critically dependent on the colliding-beams energy spread, being particularly demanding in the case of leptonic processes. For these processes, we compute upper bounds to the cross-section corresponding to present limits on the inverse decay channel rates. In order to circumvent the beam energy spread limitations we extend the analysis to processes in which a photon accompanies the resonance in the final state, compensating the off-shellness effects by radiative return. These processes might be studied at future facilities with moderate energies, in case lepton-photon and electron-muon collisions with sufficiently high luminosity will be available. Comment: 11 pages, 3 figures, new references and results included, same as published version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2021.136656 |
| URL الوصول: | http://arxiv.org/abs/2105.14896 |
| رقم الأكسشن: | edsarx.2105.14896 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2021.136656 |
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