Report of the Topical Group on Electroweak Precision Physics and Constraining New Physics for Snowmass 2021
Abstract
The precise measurement of physics observables and the test of their consistency within the standard model (SM) are an invaluable approach, complemented by direct searches for new particles, to determine the existence of physics beyond the standard model (BSM). Studies of massive electroweak gauge bosons (W and Z bosons) are a promising target for indirect BSM searches, since the interactions of photons and gluons are strongly constrained by the unbroken gauge symmetries. They can be divided into two categories: (a) Fermion scattering processes mediated by s- or t-channel W/Z bosons, also known as electroweak precision measurements; and (b) multi-boson processes, which include production of two or more vector bosons in fermion-antifermion annihilation, as well as vector boson scattering (VBS) processes. The latter categories can test modifications of gauge-boson self-interactions, and the sensitivity is typically improved with increased collision energy. This report evaluates the achievable precision of a range of future experiments, which depend on the statistics of the collected data sample, the experimental and theoretical systematic uncertainties, and their correlations. In addition it presents a combined interpretation of these results, together with similar studies in the Higgs and top sector, in the Standard Model effective field theory (SMEFT) framework. This framework provides a model-independent prescription to put generic constraints on new physics and to study and combine large sets of experimental observables, assuming that the new physics scales are significantly higher than the EW scale.
Keywords
Cite
@article{arxiv.2209.08078,
title = {Report of the Topical Group on Electroweak Precision Physics and Constraining New Physics for Snowmass 2021},
author = {Alberto Belloni and Ayres Freitas and Junping Tian and Juan Alcaraz Maestre Aram Apyan and Bianca Azartash-Namin and Paolo Azzurri and Swagato Banerjee and Jakob Beyer and Saptaparna Bhattacharya and Jorge de Blas and Alain Blondel and Daniel Britzger and Mogens Dam and Yong Du and David d'Enterria and Keisuke Fujii and Christophe Grojean and Jiayin Gu and Tao Han and Michael Hildreth and Adrián Irles and Patrick Janot and Daniel Jeans and Mayuri Kawale and Elham E Khoda and Samuel Lane and Ian Lewis and Zhijun Liang and Jenny List and Zhen Liu and Yang Ma and Victor Miralles and Takahiro Mizuno and Chilufya Mwewa and Meenakshi Narain and Luka Nedic and Mark S. Neubauer and Chaitanya Paranjape and Michael Peskin and Roberto Petti and Marc-André Pleier and Roman Poeschl and Karolos Potamianos and Laura Reina and Jürgen Reuter and Tania Robens and Philipp Roloff and Michael Roney and Manqi Ruan and Richard Ruiz and Alex Schuy and William Shepherd and Daniel Stolarski and John Stupak and Taikan Suehara and Roberto Tenchini and Alessandro Tricoli and Eleni Vryonidou and Marcel Vos and Connor Waits and Graham Wilson and Yongcheng Wu and Keping Xie and Siqi Yang and Tianyi Yang and Keita Yumino and Shuang-Yong Zhou and Junjie Zhu},
journal= {arXiv preprint arXiv:2209.08078},
year = {2022}
}
Comments
55 pages; Report of the EF04 topical group for Snowmass 2021; v2: few typos corrected and references added