$Effects of order $$\alpha ^3$$ α 3 on the determination of the Pauli form factor $$F_2$$ F 2 of the $$\tau $$ τ -lepton$

Effects of order $$\alpha ^3$$ α 3 on the determination of the Pauli form factor $$F_2$$ F 2 of the $$\tau $$ τ -lepton

Abstract We introduce optimal observables to measure the Pauli form factor $$F_2$$ F 2 of the $$\tau $$ τ -lepton in the pair-production process $$\mathrm{e}^- \mathrm{e}^+ \rightarrow \tau ^-\tau ^+$$ e - e + → τ - τ + from the intensity distribution of the decay products. The spin-density matrix f...

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Bibliographic Details
Main Authors:	F. Krinner, N. Kaiser
Format:	Article
Language:	English
Published:	SpringerOpen 2022-05-01
Series:	European Physical Journal C: Particles and Fields
Online Access:	https://doi.org/10.1140/epjc/s10052-022-10356-3

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