BBC legend Fiona Bruce reveals the story behind private and personal items of the late Queen Elizabeth II

In this special episode, Fiona Bruce shares her favorite objects from the show, alongside personal items brought in by the public, and explores how they reveal important stories about the monarch’s life.
![The differential decay rate for [latex]K^{*}\(892)\rightarrow K\ell^{+}\ell^{-}[/latex] is modeled with a pole mass defined as [latex]\Lambda=m_{\rho}[/latex], providing a foundational parameter for understanding this particle decay process.](https://arxiv.org/html/2604.14735v1/x2.png)


![The study demonstrates that the LDMX experiment possesses sensitivity to new physics, specifically the parameter [latex]A^{\prime}[/latex], and projects limits exceeding those established by previous experiments, with sensitivity scaling dependent on integrated luminosity-achieving greater distinction with lower background event rates, as indicated by the comparison between curves representing 0.5, 5, and 50 background events at [latex]1\text{\times}{10}^{16}[/latex] EoT.](https://arxiv.org/html/2604.14359v1/x10.png)


