Factorization of standard model cross sections at ultrahigh energy
Name
PhysRevD.97.053006.pdf
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210.87 KB
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Adobe PDF
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25cedfdb20659d3aa16ea10147c58651
Author(s)
Li, Hsiang-nan
Chien, Yang Ting
Date Issued
March 2018
Journal
Physical Review D
Publisher
American Physical Society
Citation
Chien, Yang-Ting and Hsiang-nan Li. "Factorization of standard model cross sections at ultrahigh energy." Physical Review D 97, 5 (March 2018): 053006
Version
Final published version
Abstract
The factorization theorem for organizing multiple electroweak boson emissions at future colliders with energy far above the electroweak scale is formulated. Taking the inclusive muon-pair production in electron-positron collisions as an example, we argue that the summation over isospins is demanded for constructing the universal distributions of leptons and gauge bosons in an electron. These parton distributions are shown to have the same infrared structure in the phases of broken and unbroken electroweak symmetry, an observation consistent with the Goldstone equivalence theorem. The electroweak factorization of processes involving protons is sketched, with an emphasis on the subtlety of the scalar distributions. This formalism, in which electroweak shower effects are handled from the viewpoint of factorization theorem for the first time, is an adequate framework for collider physics at ultra high energy.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.97.053006
