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arXiv · 1505.06368

Factorization for substructures of boosted Higgs jets

Joshua Isaacson·Hsiang-nan Li·Zhao Li·C. -P. Yuan
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Abstract

We present a perturbative QCD factorization formula for substructures of an energetic Higgs jet, taking the energy profile resulting from the $H\to b\bar b$ decay as an example. The formula is written as a convolution of a hard Higgs decay kernel with two $b$-quark jet functions and a soft function that links the colors of the two $b$ quarks. We derive an analytical expression to approximate the energy profile within a boosted Higgs jet, which significantly differs from those of ordinary QCD jets. This formalism also extends to boosted $W$ and $Z$ bosons in their hadronic decay modes, allowing an easy and efficient discrimination of fat jets produced from different processes.

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Joshua Isaacson, Hsiang-nan Li, Zhao Li, C. -P. Yuan. 2015-05-23. Factorization for substructures of boosted Higgs jets. https://doi.org/10.1016/j.physletb.2017.05.089

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