Complete amplitude and cross section structure of one-loop contributions toe + e ??q $$\bar q$$ g

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Complete amplitude and cross section structure of one-loop contributions toe + e ??q $$\bar q$$ g

subject

Quantum chromodynamics Physics Physics and Astronomy (miscellaneous)Bar (music)High Energy Physics::Phenomenology Elementary particle Massless particle Loop (topology)Dimensional regularization Amplitude Quantum mechanics High Energy Physics::Experiment Invariant (mathematics)Engineering (miscellaneous)Mathematical physics

description

We calculate theO(α 2 ) one-loop contributions to the seven (inn≠4) independent invariant amplitudes describinge + e −→q $$\bar q$$ g in massless QCD. After folding with theO(α 1/2 ) Born term contribution we obtain the nine independentO(α 2 ) structure functions that describe the parity-conserving and parity-violating contributions toe + e −→q $$\bar q$$ g. We use dimensional regularization to control infrared and ultraviolet divergencies.

year	journal	country	edition	language
1985-12-01	Zeitschrift f�r Physik C Particles and Fields

https://doi.org/10.1007/bf01551799

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