Biplab Dey, Eotvos University
When
Where
Abstract: I will discuss a proposal to probe New Physics beyond the Standard Model via a two-prong approach at the LHC. New heavy particles, beyond the reach of direct searches at ATLAS/CMS, can leave behind their imprints in rare, loop-induced decays of the beauty quark to strange or down quarks. I will describe the ongoing efforts and challenges in the flavor sector at LHCb. A particular thrust is multi-dimensional amplitude analyses to cleanly separate New Physics effects from QCD-induced “pollution” in such processes. New Physics can also exist in a hidden/dark sector at lower energies, if the new particles have very long-lifetimes and thereby escape detection at the LHC, since the detectors and triggers are tuned for particle decays close to the interaction point. Such long-lived particles arise ubiquitously in almost every extension of the Standard Model. To ensure that the upcoming High-Luminosity LHC runs can probe long-lived particles that travel several meters before decaying, a new sub-detector, CODEX-b, is proposed to be installed in a shielded region inside the LHCb cavern. I will describe the status and future plans of the CODEX-b project, aligned with the LHCb future upgrades effort.