Dr. Markus Prim

Welcome to the website of the group of Dr. Markus Prim.

Our group explores the physics of B mesons — particles that offer a unique window into the fundamental forces of nature. By studying their hadronic and semileptonic decays, we aim to answer three key questions:

• What is the true value of the CKM matrix element Vcb?
• Are interactions with the three lepton generations truly universal, as predicted by the Standard Model?
• And how does the strong force (QCD) influence these precise measurements?

To tackle these questions, we work with the Belle and Belle II experiments in Japan, which produce enormous numbers of B mesons in an exceptionally clean experimental environment. Together, these studies bring us closer to understanding the fundamental symmetries of the universe.

Since 2024

Emmy-Noether Research
Group Leader

University of Bonn

• Project title: "Unravelling the D**"
  The project aims to improve our understanding of excited D meson states through both
  spectroscopic studies and semileptonic decay measurements involving these states in the
  final state, thereby bridging the fields of flavor and hadron physics

University of Bonn

• Comissioning of the FASER tracker, test beam campaign, and dry-assembly of the FASER experiment at CERN
• Development of the first full angular analysis of B → D*ℓν decays at Belle II

Karlsruhe Institute of Technology (KIT)

• Expat the High Energy Accelerator Research Organization(KEK) in Tsukuba (JPN)
• Work on data aquisition (DAQ) and online integration for the Belle II High Level Trigger (HLT)

Karlsruhe Institute of Technology (KIT)

• Topic of PhD thesis: "B → μν"

Karlsruhe Institute of Technology (KIT)

• Topic of Master thesis: "Study of Material Effects in Track Fitting and Improvement of the KS0 Reconstruction at Belle II"

Awards and Scholarship

“I have no special talent. I am only passionately curious.”
—Albert Einstein

Services for the Community, Leader- ship Positions and Coordination Roles

“If you want something done, ask a busy person - preferably someone who just joined another committee.”
— Anonymous