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