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Study of inclusive B --> J/psi X decays with the Belle II Experiment

2 December 2025 11:15 | Seminar Martin Angelsmark (U. Bonn) The Belle II experiment during Run 1 has collected a 360 fb^{-1} sample of e+e- --> BBbar collisions at the Upsilon(4S) resonance. Electroweak penguin decays of B mesons, such as b --> s l+ l-, are of great interest due to a number of observed discrepancies between the standard model predictions and the experimental results. The largest b

https://www.particle-nuclear.lu.se/calendar/study-inclusive-b-jpsi-x-decays-belle-ii-experiment - 2026-09-13

SHREC - Search for Element 120

The detector for SuperHeavy RECoils (SHREC) was delivered to Lawrence Berkeley National Laboratory (LBNL) to aid the discovery of a new element with proton number Z=120. Following the ionization and acceleration of heavy ions such as 48Ca and 50Ti, these impinging on thin foils comprising isotopically enriched, radioactive actinide material such as 244Pu or 249Cf, fusion-evaporation may lead to th

https://www.particle-nuclear.lu.se/experimental-particle-and-nuclear-physics/nuclear-structure/superheavy-elements/shrec-search-element-120 - 2026-09-13

In-beam Spectroscopy

A brief description of in-beam γ-ray spectroscopy techniques is provided aiming at N~Z nuclei at or beyond the proton dripline. Ground states of odd-Z isotopes with neutron numbers, N, being less than their proton number, Z, are weakly if at all bound against the emission of protons in the region between N=Z=28 56Ni and N=Z=50 100Sn. An explanation for the lack of experimental information on those

https://www.particle-nuclear.lu.se/experimental-particle-and-nuclear-physics/nuclear-structure/proton-dripline-studies/beam-spectroscopy - 2026-09-13

Nobel Symposium NS215 — Beyond Boltzmann: Complexity, Memory, and Non-Additive Entropies

Together with the Royal Swedish Academy of Sciences, we are organizing 2027 Nobel Symposium in Physics convening leading experts to consolidate advances in generalized statistical mechanics for memory-rich, strongly correlated, and constrained systems. When: 24 - 28 May, 2027 Where: Bäckaskog slott Host: Department of Physics, Lund University Symposium Chair: Roman Pasechnik (Lund University, Swed

https://www.particle-nuclear.lu.se/nobel-symposium-2027 - 2026-09-13

LDMX

The Light Dark Matter eXperiment, LDMX The constituents of dark matter are still unknown, and the viable possibilities span a very large mass range. Specific scenarios for the origin of dark matter sharpen the focus on a narrower range of masses:  the natural scenario where dark matter originates from thermal contact with familiar matter in the early Universe requires the dark matter mass to lie w

https://www.particle-nuclear.lu.se/experimental-particle-and-nuclear-physics/ldmx - 2026-09-13

Microscopic Dynamics of Confining Bubbles at Large N_c : A Holographic Perspective

24 March 2026 11:15 | Seminar Nicklas Ramberg (SISSA, Trieste) Gravitational waves probe hidden sectors through gravity’s universal coupling to energy, with first-order phase transitions in the early Universe or in compact astrophysical objects producing potentially observable signals. In this talk, I will discuss the confinement phase transition in pure SU(Nc​) Yang–Mills theory at large Nc​, stu

https://www.particle-nuclear.lu.se/calendar/microscopic-dynamics-confining-bubbles-large-nc-holographic-perspective - 2026-09-13

SENSE: Sciences to enhance safety in nuclear energy

Radiation Safety and Society: Building Sweden’s Interdisciplinary Capacity for Nuclear Futures Energy production based on fission is complex, and safety aspects for workers, for the general public and for the environment are crucial, both to fulfil regulatory requirements and for the societal acceptance of the technology. We bring together researchers from four faculties at Lund University (Scienc

https://www.particle-nuclear.lu.se/sense-sciences-enhance-safety-nuclear-energy - 2026-09-13

Hans Alin

Doctoral student Contact details Email: hans [dot] alin [at] fysik [dot] lu [dot] seOrganisation Particle and nuclear physics Service point: 14 WebpageHans Alins profile in Lund University research portal

https://www.particle-nuclear.lu.se/hans-alin - 2026-09-13

eScience

The eScience challenge is to optimize traditional computing infrastructures in order to meet the ever increasing requirements from research The goal of eScience research is to ensure long-term reliable and efficient computing and storage support for researchers – the eScience infrastructure. Swedish Particle Physics community contributes to the unique e-Science infrastructure, the Nordic Tier1 for

https://www.particle-nuclear.lu.se/experimental-particle-physics/escience - 2026-09-13

Three-Loop Hadronic Vacuum Polarization in Chiral Perturbation Theory

21 May 2026 11:15 | Seminar Mattias Sjö (Marseille, CPT) One of the many hurdles facing lattice computations of quantities such as the hadronic vacuum polarization (HVP), are finite-volume effects. Since these are dominated by low-energy phenomena, they can be predicted and controlled using the low-energy effective field theory of QCD, Chiral Perturbation Theory (ChPT). I present the first three-l

https://www.particle-nuclear.lu.se/calendar/three-loop-hadronic-vacuum-polarization-chiral-perturbation-theory - 2026-09-13

From CPU Grids to GPUs and FPGAs: Heterogeneous Computing in Collider Physics

16 April 2026 11:15 | Seminar Nairit Sur (Lund U.) Collider physics has always depended on large-scale computing, but the approach to it in the field is starting to change. Much of HEP has so far been built around CPU-based parallelization, whether through the LHC grid for experimental data analysis or through CPU-heavy theoretical calculation frameworks. This has worked remarkably well so far, bu

https://www.particle-nuclear.lu.se/calendar/cpu-grids-gpus-and-fpgas-heterogeneous-computing-collider-physics - 2026-09-13

What’s in the many blue boxes stored in Kristina’s office?  A glance into the radioecological research of the BAR group

21 April 2026 11:15 | Seminar Kristina Stenström (Lund U.) What’s in the many blue boxes stored in Kristina’s office?  A glance into the radioecological research of the BAR group. About the eventLocation:Teorilabbet (K308)Contact:kristina [dot] stenstrom [at] fysik [dot] lu [dot] se Save the event to your calendar Categories Science Coffee

https://www.particle-nuclear.lu.se/calendar/whats-many-blue-boxes-stored-kristinas-office-glance-radioecological-research-bar-group - 2026-09-13

Beyond the Standard Model: Coherent Neutrino Scattering at the European Spallation Source

28 May 2026 11:15 | Seminar Francesc Monrabal (Donostia International Physics Center) Coherent Elastic Neutrino-Nucleus Scattering (CEvNS), a recently discovered process of neutrino interaction, provides numerous opportunities to search for physics beyond the Standard Model (SM). The CEvNS cross-section, much larger than for any other coupling, results in a dramatic miniaturization of neutrino det

https://www.particle-nuclear.lu.se/calendar/beyond-standard-model-coherent-neutrino-scattering-european-spallation-source - 2026-09-13