Hartwell Institute for Particle Physics

Studying the smallest building blocks of the universe

We run experiments and develop theory on elementary particles and the forces between them, from collider data analysis to detector technology and computing for large collaborations.

Explore our research

Research

Collider physics

Our groups analyse proton collision data to measure the properties of the Higgs boson and to search for particles beyond the Standard Model.

Neutrinos and dark matter

Underground and deep-water detectors let us study neutrino oscillations and look for rare interactions of dark matter candidates.

Detectors and computing

We build silicon trackers, readout electronics and the distributed software that turns raw signals into physics results.

  • 112staff scientists and engineers
  • 46PhD candidates
  • 9international collaborations
  • 1987year of foundation

Selected collaborations

ExperimentTypeOur contribution
Large collider detector, Run 3ColliderSilicon tracking, trigger, Higgs analyses
Flavour spectrometer upgradeColliderVertex detector, data acquisition
Deep-water neutrino telescopeAstroparticleOptical modules, reconstruction software
Liquid xenon dark matter experimentUndergroundCalibration and background modelling
Gravitational-wave observatoryAstroparticleData analysis and detector characterisation

News

14 October 2026
New precision measurement of the W boson massResearchers from our collider group present an updated analysis using the full Run 3 dataset. The result is consistent with the Standard Model prediction and reduces the combined uncertainty.
29 September 2026
Open positions for PhD candidatesFour fully funded positions are available in detector development and data analysis. Applications are open until the end of November.
3 September 2026
Summer school welcomed 80 studentsParticipants from 21 countries followed two weeks of lectures and hands-on analysis sessions.
18 June 2026
Upgraded readout electronics installedThe new front-end boards for the vertex detector passed their commissioning tests ahead of schedule.
2 May 2026
Open day for the publicOver 900 visitors toured the detector laboratory, the clean room and the computing centre.

About the institute

The institute was founded in 1987 by a group of universities and research councils to coordinate work on particle physics. Today it hosts experimental and theoretical groups, a technology department and a graduate programme.

Techniques developed in our laboratories, such as fast silicon sensors and large-scale data processing, also find use in medical imaging and industry. Analysis software and teaching material are published under open licences whenever the collaborations allow it.

Scientific directorProf. Elena Marchetti
Managing directorJonas Eriksen
Research groupsCollider, flavour, neutrino, dark matter, theory
SupportMechanical workshop, electronics, computing
Graduate schoolPhD programme with partner universities

Contact

General enquiries: info@nikhel.xdrttg05.top

Press and communication: press@nikhel.xdrttg05.top

Recruitment: jobs@nikhel.xdrttg05.top

The laboratory is open on weekdays between 8:30 and 17:30. Visitors should register at the reception desk. Guided tours for school groups can be requested by email at least two weeks ahead.