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Sep 24 – 29, 2023
US/Eastern timezone

Is there evidence of strong parity violation in the proton?

Sep 26, 2023, 12:15 PM
20m
Junior A3 (Durham Convention Center)

Junior A3

Durham Convention Center

Talk Fundamental Symmetries and Spin Physics Beyond the Standard Model Fundamental Symmetries and Spin Physics Beyond the Standard Model

Speaker

Matteo Cerutti (University of Pavia)

Description

We present a study of strong parity-violating contributions that can be included in inclusive Deep Inelastic Scattering (DIS) off an unpolarized proton target. We show that a non vanishing parity-violating structure function arise even in the case of pure photon exchange, in contrast with standard results.
The size of the additional strong parity-violating term is estimated by fitting available experimental data on electron and positron beam-spin asymmetries.

Primary authors

Alessandro Bacchetta (University of Pavia and INFN Pavia) Marco Radici (University of Pavia) Matteo Cerutti (University of Pavia) Xiaochao Zheng (University of Virginia)

Presentation materials