Project description

Subject: Physics.

The elementary particle physics group at Stockholm University invites applicants for a Ph.D. position to work on the design of a detector system, including beam tests, for a future particle physics experiment (NNBAR) for the European Spallation Source (ESS) in Lund. The main tasks of the successful applicant will be optimizing a detector design with GEANT simulations and testing calorimeter components with real data.

Presently under construction, the ESS will be the world’s brightest neutron source. The NNBAR experiment would search for  baryon number violation via neutrons converting to antineutrons with an improvement in sensitivity three orders of magnitude greater than previously achieved. Antineutrons would be observed via their annihilation leading to a multi-particle state. Stockholm University plays a leading role on the NNBAR experiment and has a focus on the calorimeter design of the detector.

The successful applicant will develop simulations of different detector options using GEANT platform for the simulation of the passage of particles through matter. GEANT will be interfaced with models of neutron-antineutron annihilation and of background processes such as cosmic rays in order to quantify the potential of the NNBAR detector. In addition, the successful candidate will take part in background measurements at Stockholm University and external laboratories using a test set-up of different candidate calorimeter technologies.  Frequent travel to the ESS in Lund is expected, with a possibility of longer periods based at the ESS. The position is fully funded, including a salary and travel expenses.

We seek a self-motivated candidate who is fluent in English. An experimental background and interest in computing and instrumentation are merits. The application should include experience with computing, detectors,  and other relevant skills.


Ref. No. SU FV-0351-20

Closing date: 1 March 2020

Complete information here.