Challenges in the extraction of physics beyond the Standard Model from electron scattering
XG Wang, AW Thomas - arXiv preprint arXiv:2403.07327, 2024 - arxiv.org
XG Wang, AW Thomas
arXiv preprint arXiv:2403.07327, 2024•arxiv.orgPrecise measurements of electron and positron scattering, including parity violation, offer
great promise in the search for physics beyond the Standard Model. In this context it is
crucial to understand the corrections which might arise from charge symmetry violation, as
well as the less well known strange and charm quark distributions. Our analysis, using state
of the art parton distributions, suggests that these contributions lead to corrections in the
extraction of the weak couplings $ g^{eq} _ {AV} $ and $ g^{eq} _ {VA} $ of the order $(1 …
great promise in the search for physics beyond the Standard Model. In this context it is
crucial to understand the corrections which might arise from charge symmetry violation, as
well as the less well known strange and charm quark distributions. Our analysis, using state
of the art parton distributions, suggests that these contributions lead to corrections in the
extraction of the weak couplings $ g^{eq} _ {AV} $ and $ g^{eq} _ {VA} $ of the order $(1 …
Precise measurements of electron and positron scattering, including parity violation, offer great promise in the search for physics beyond the Standard Model. In this context it is crucial to understand the corrections which might arise from charge symmetry violation, as well as the less well known strange and charm quark distributions. Our analysis, using state of the art parton distributions, suggests that these contributions lead to corrections in the extraction of the weak couplings and of the order , while they are as large as for , at a typical scale of . These results underline the importance of carrying out high precision measurements, which will not only provide information on physics beyond the Standard Model but also reduce the current uncertainties on our knowledge of the strange and charm quark distributions in the proton.
arxiv.org