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arXiv · 1911.04002

Lorentz and CPT Violation in Partons

Alan Kostelecky·Enrico Lunghi·Nathan Sherrill·A. R. Vieira
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Abstract

A framework is presented for the factorization of high-energy hadronic processes in the presence of Lorentz and CPT violation. The comprehensive effective field theory describing Lorentz and CPT violation, the Standard-Model Extension, is used to demonstrate factorization of the hadronic tensor at leading order in electroweak interactions for deep inelastic scattering and for the Drell-Yan process. Effects controlled by both minimal and nonminimal coefficients for Lorentz violation are explored, and the equivalent parton-model description is derived. The methodology is illustrated by determining cross sections and studying estimated attainable sensitivities to Lorentz violation using real data collected at the Hadronen-Elektronen Ring Anlage and the Large Hadron Collider and simulated data for the future US-based electron-ion collider.

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Alan Kostelecky, Enrico Lunghi, Nathan Sherrill, A. R. Vieira. 2020-05-16. Lorentz and CPT Violation in Partons. https://doi.org/10.1007/jhep04(2020)143

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