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Removing flat directions in standard model EFT fits: How polarized electron-ion collider data can complement the LHC

Boughezal, Radja·Petriello, Frank·Wiegand, Daniel (ORCID:0000000196769700)
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Abstract

We study the potential of future electron-ion collider (EIC) data to probe four-fermion operators in the Standard Model effective field theory (SMEFT). The ability to perform measurements with both polarized electron and proton beams at the EIC provides a powerful tool that can disentangle the effects from different SMEFT operators. We compare the potential constraints from an EIC with those obtained from Drell-Yan data at the Large Hadron Collider. We show that EIC data play an important complementary role since they probe combinations of Wilson coefficients not accessible through available Drell-Yan measurements.

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Boughezal, Radja, Petriello, Frank, Wiegand, Daniel (ORCID:0000000196769700). 2020-06-02. Removing flat directions in standard model EFT fits: How polarized electron-ion collider data can complement the LHC. https://doi.org/10.1103/physrevd.101.116002

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