Partikeldagarna 2026

Session

Session 2

17 Sept 2026, 11:00

A-salen (L317) (Lund University, Physics Department)

6. ALICE overview

Alice Ohlson (Lund University (SE))

17/09/2026, 11:00

Overview of ALICE group activities in Lund.

26. Probing path-length dependent jet modification with Event-Shape Engineering

Joachim Hansen (Lund University (SE))

17/09/2026, 11:15

In heavy-ion collisions, where the quark–gluon plasma (QGP) can be created and studied experimentally, we investigate the modification of jets as they propagate through the medium. In particular, we study path-length-dependent effects through the jet yield relative to the event plane and through event-shape engineering. Furthermore, jet–hadron correlations are used to probe medium-induced...

28. Searching for delayed jets from long-lived particles with the ATLAS detector

Renske Wierda (KTH Royal Institute of Technology (SE))

17/09/2026, 11:30

Many beyond-the-standard-model theories allow for new particles with long lifetimes. These long-lived particles will decay away from the primary interaction point, and many searches for these displaced decays have been performed by both ATLAS and CMS. However, spatial displacement is not the only signature of long-lived particles, since sufficiently massive ones also incur a time delay. Timing...

22. Establishing Center-of-Mass Energy Dependence for Primordial Transverse Momentum in PYTHIA

Ioannis Polychronakos (Lund University)

17/09/2026, 11:45

The quarks and gluons inside a proton are expected to have an intrinsic momentum proportional to $\Lambda_{QCD}$ due to Fermi motion. In Monte Carlo event generators, primordial $k_T$ acts as an effective parameter that absorbs a broader range of unresolved physics, such as soft emissions below the parton shower cut-off. We present the evolution of the primordial $k_T$ width as a function of...

8. Luminosity Measurement with the ATLAS High-Granularity Timing Detector at HL-LHC

Magdalena Vande Voorde (KTH Royal Institute of Technology (SE))

17/09/2026, 12:00

The HL-LHC era will offer a rich physics program for the ATLAS experiment, alongside a significant challenge for detector performance given the increased pile-up levels of up to 140–200 simultaneous interactions per bunch crossing. The physics program requires a luminosity measurement precision of 1%, which ATLAS will meet using multiple complementary luminosity detectors spanning the full...

13. Low Energy nuSTORM at ESS

Ting Wing CHOI

17/09/2026, 12:15

The Low Energy nuSTORM (Neutrinos from STored Muons) facility at ESS focuses on the detailed measurement of neutrino-nucleus cross-section within the neutrino energy range relevant to ESSnuSB, a proposed neutrino long-baseline experiment at ESS, Lund, Sweden, which aims to measure the leptonic CP-violating phase, $\delta_{CP}$.

nuSTORM was introduced in 1980 and uses neutrinos from muons...