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arXiv · hep-ph/9302250

Properties of Soft Radiation Near $\tt$ and $W^+W^-$ Threshold

Yu. L. Dokshitzer·V. A. Khoze·L. H. Orr·W. J. Stirling
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Abstract

We discuss the characteristic interference features of soft radiation in the threshold production of heavy unstable particles: soft gluon radiation in $\ee \to \tt$ and soft photon radiation in $\ee \to \ww$. We show that the heavy particle decay width controls the interference between the emission off the final state particles. As a result, the radiation pattern may provide a way of measuring the decay width of the heavy particles.

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Yu. L. Dokshitzer, V. A. Khoze, L. H. Orr, W. J. Stirling. 1993-02-11. Properties of Soft Radiation Near $\tt$ and $W^+W^-$ Threshold. https://doi.org/10.1016/0550-3213(93)90029-o

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