Standard Model and Beyond · Problem 2.3

Lie Groups, Lie Algebras, and Symmetries

Physics — Particle Physics · lorentz-transform-cross-section

Problem

Derive (2.64) for the special case m1=m3=0m_1 = m_3 = 0 and m2=m4m_2 = m_4 by Lorentz transforming (2.57). Hint: use the fact that σ\sigma, ss, and tt are invariant.

Related theory

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