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arXiv · 2410.15122

Searching for new physics in WW and single-W events

Jenny List·Ulrich Einhaus·Andre Filipe Silva·Leonhard Reichenbach
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Abstract

Pair-production and single-production of $W$ bosons provide many opportunities to look for new physics via precision measurements, for instance via scrutinising the involved triple-gauge vertices or by measuring CKM matrix elements in an environment very complementary to $B$ hadron decays. This contribution presents the ongoing work based on full simulation of the ILD concept, exploiting the O($10^8$) $W$ bosons produced during the $250$\,GeV stage of the ILC, as well as the CLD concept proposed for the FCC-ee. The projections, which also contribute to two focus topics of the current ECFA study on future Higgs/Top/Electroweak factories, promise improvements of the measurement precision of TGCs and the CKM matrix, respectively, of one to two orders of magnitude with respects to LEP.

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Jenny List, Ulrich Einhaus, Andre Filipe Silva, Leonhard Reichenbach. 2024-10-19. Searching for new physics in WW and single-W events. https://arxiv.org/abs/2410.15122

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