Factorization for substructures of boosted Higgs jets
| Autor: | Zhao Li, Hsiang-nan Li, C.-P. Yuan, Joshua Isaacson |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Quark
Hadronic decay Nuclear and High Energy Physics Particle physics Soft function Astrophysics::High Energy Astrophysical Phenomena High Energy Physics::Lattice FOS: Physical sciences 01 natural sciences High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) Factorization 0103 physical sciences 010306 general physics Quantum chromodynamics Physics 010308 nuclear & particles physics High Energy Physics::Phenomenology Perturbative QCD lcsh:QC1-999 High Energy Physics - Phenomenology Energy profile Higgs boson High Energy Physics::Experiment lcsh:Physics |
| Zdroj: | Physics Letters Physics Letters B, Vol 771, Iss, Pp 619-623 (2017) |
| Popis: | 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. 6 pages, 3 figures |
| Databáze: | OpenAIRE |
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