Direct CKM determination from W decays at future lepton colliders
A bstract We project the reach of future lepton colliders for measuring CKM elements from direct observations of W decays. We focus our attention to | V cs | and | V cb | determinations, using FCC-ee as case study. We employ state-of-the-art jet flavor taggers to obtain the projected sensitivity, and scan over tagger performances to show their effect. We conclude that future lepton collider can sizeably improve the sensitivity on | V cs | and | V cb |, albeit the achievable reach will strongly depend on the level of systematic uncertainties on tagger parameters.
Authors
- David Marzocca (ORCID: https://orcid.org/0000-0002-4353-1544)
- Michele Tammaro (ORCID: https://orcid.org/0000-0002-0330-411X)
- Manuel Szewc (ORCID: https://orcid.org/0000-0002-3014-5388)
Institutions
- Scuola Internazionale Superiore di Studi Avanzati (IT)
- University of Trieste (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Firenze (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT)
- University of Cincinnati (US)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2024-11-05
- DOI
- https://doi.org/10.1007/jhep11(2024)017
- Citations
- 5
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 3.30
Funders
- National Science Foundation
- U.S. Department of Energy