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PhD studentship in Belle II

University of Strasbourg
Strasbourg, France
Posting live until
12 Jul 2024

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The Belle II group at IPHC Strasbourg invites applications for a funded studentship to prepare a PhD in particle physics in the group.

The proposed topic of the thesis concerns the search for physics beyond the standard model in the Belle II experiment, studying flavour changing neutral current b → s quark transitions. The objective is to constrain the C7 and C7’ Wilson coefficients of the effective theory, based on the measurement of the time-dependent CP asymmetry of the B0 → K0S π+ π- γ decay. This asymmetry measurement is already well advanced in the group, and the PhD student would focus on the full amplitude analysis of the charged isospin partner decay, to estimate the different intermediate kaonic resonance contributions, which are needed to set the constraints on the Wilson coefficients.

The work will take place at Institut Pluridisciplinaire Hubert Curien, in Strasbourg, France ( ). The Belle II group at IPHC is currently composed of 4 researchers, 2 postdocs and 4 PhD students. Besides the long-standing b→ s analysis activities, the group is also participating to the operation of the silicon vertex detector and prepares its upgrade with CMOS pixel sensors around 2029.

The PhD student will become a member of the Belle II international collaboration. Stays on the experiment site at KEK in Japan, for short- to mid-term periods, will be possible.


The successful candidate will be employed by University of Strasbourg with a 3-year contract.

They will be part of the QMat programme:

The monthly gross salary will evolve from 2100 € (in 2024) to 2300 € (in 2027).

The expected starting date for this position is between October and December 2024. Review of applications will start immediately and continue until the position is filled.


Applicants must hold a Master in physics. They must be able to communicate in English. Knowledge in particle physics and strong software skills (python, ROOT, C++) are highly recommended.

Qualified applicants shall contact Isabelle Ripp-Baudot ( ) and provide a curriculum vitae, the transcript of the Master results, and the email contact of at least two possible referees.

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