PSI Center for Neutron and Muon Sciences

The PSI Center for Neutron and Muon Sciences uses neutrons and muons to explore and understand matter and materials.

E.P. Segarra

2025 CHIPP Postdoc Prize for Efrain P. Segarra

The LTP/CNM physicist Efrain P. Segarra has been awarded the 2025 CHIPP Postdoc Prize!

Rose et al

In-situ neutron tomography study of a dehydrating and hydrating packed bed for thermochemical heat storage

To study the heat and water vapor transport and reaction kinetics in a packed bed of thermo-chemical material on both reactor and tablet level, an in-situ neutron imaging study of a dehydrating and subsequently hydrating packed bed consisting of cylindrical K2 CO3 tablets was performed at the Paul Scherrer Institute ...

Hernandez et al

Field-Induced Magnon Decay, Magnon Shadows, and Rotonlike Excitations in the Honeycomb Antiferromagnet YbBr3

The search for new quantum many-body phenomena in magnetic materials has a strong focus on highly frustrated systems and the resulting quantum spin-liquid state. However, even unfrustrated magnetic materials show a multitude of unconventional features in their spin excitation spectra. By using the synergy of ...

Skrypnik et al

Generating structured foam via flowing through a wire array

Efficient manufacturing methods could unlock foams with tailored, anisotropic properties. Conventional foam production methods rely on the self-arrangement of bubbles, typically leading to isotropic materials, or involve intricate additive layering processes. This study presents a simple, passive technique to modify the foam structure. A set of thin parallel wires ...

Official SwissSkills photo

PSI electronics apprentices once again perform very successfully at the SwissSkills Championships 2025

At the biennial SwissSkills Championships for young professionals, which took place in Bern from 17 to 21 September 2025, four of our former and current electronics apprentices demonstrated their exceptionally strong skills with great success in two different competition categories.

PSI2025 participants

PSI2025 Workshop on the ‘Physics of fundamental Symmetries and Interactions’

From September 7-12, 2025, more than 170 participants from 20 countries met for the PSI2025 workshop, the 7th edition in the series.

  • Chekhovsky V, Hayrapetyan A, Makarenko V, Tumasyan A, Adam W, Andrejkovic JW, et al.
    Probing gluon fluctuations in nuclei with the first energy-dependent measurement of incoherent J/ψ photoproduction in ultraperipheral PbPb collisions
    Physical Review Letters. 2025; 135(11): 112301 (22 pp.). https://doi.org/10.1103/w9kp-f8xr
    DORA PSI
  • Nocerino E
    Emergent properties and the multiscale characterization challenge in condensed matter, from crystals to complex materials: a review
    Journal of Physics D: Applied Physics. 2025; 58(39): 393001 (49 pp.). https://doi.org/10.1088/1361-6463/ae0344
    DORA PSI
  • Devoto S, Grazzini M, Kallweit S, Mazzitelli J, Savoini C
    Precise predictions for tt¯H production at the LHC: inclusive cross section and differential distributions
    Journal of High Energy Physics. 2025; 2025(3): 189 (42 pp.). https://doi.org/10.1007/JHEP03(2025)189
    DORA PSI
  • Ai X, Altmannshofer W, Athron P, Bai X, Calibbi L, Cao L, et al.
    Flavor physics at the CEPC: a general perspective
    Chinese Physics C. 2025; 49(10): 103003 (56 pp.). https://doi.org/10.1088/1674-1137/adf1f0
    DORA PSI

300

The CNM center hosts 300 members of staff, in addition 40 PhD students perform their thesis work within CNM

5+1

The center is organized in 5 laboratories and 1 staff group.

3/30

CNM operates 3 of the 5 large scale user facilities: the Swiss spallation neutron source SINQ, the Swiss Muon Source SμS and the facilities for particle physics CHIRSP with approximately 30 experimental stations open for users.

1700

The facilities in the CNM center are open to international access — with approximately 1700 annual user visits the associated user program is a key activity for the center and for PSI as a whole.

Postal address
Paul Scherrer Institut
Center for Neutron and Muon Sciences CNM

WHGA/345
5232 Villigen PSI
Switzerland