dr Alexander Korchin (IFJ PAN): Spin-correlation effects in the tau-lepton pair induced by anomalous magnetic and electric dipole moments

Name: dr Alexander Korchin (IFJ PAN): Spin-correlation effects in the tau-lepton pair induced by anomalous magnetic and electric dipole moments
Start: 2026-04-17T10:15:00+02:00
End: 2026-04-17T11:00:00+02:00
Location: No location set

Friday Apr 17, 2026, 10:15 AM → 11:00 AM Europe/Warsaw

Description

Abstract:

I discuss the influence of electromagnetic and weak dipole moments on spin-spin correlations in the tau pairs produced in quark-antiquark and photon-photon processes. Such processes have been observed in the pp and heavy-ion collisions at the LHC. Extensions of the Standard Model amplitudes, including the tau dipole moments, are implemented in the TauSpinner MC program.
This also allows us to test a possible phase-shift between vector and axial-vector couplings of the Z boson to tau leptons. Relation between New Physics contributions to the dipole momen and the Standard Model EFT is briefly addressed. A few examples of observables sensitive to the tau-tau spin correlations and dipole moments will be presented.

Important: This seminar is held in building D-11 room 104.

Organized by

Prof. dr hab. Wojciech Broniowski (IFJ PAN, UJK)
Prof. dr hab. Danuta Kisielewska (AGH)
Prof. dr hab. inż. Iwona Grabowska-Bołd (AGH)

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dr Alexander Korchin (IFJ PAN): Spin-correlation effects in the tau-lepton pair induced by anomalous magnetic and electric dipole moments