In this talk, I will introduce gravitational wave (GW) data analysis and highlight the differences between ground-based GW analysis and GW analysis using pulsar timing arrays. In June 2023, tentative evidence emerged for the presence of a low-frequency signal in pulsar timing data. The most likely source of the signal in the nanoHertz regime, probed by pulsar timing, is the superposition of GW...
The discovery of gravitational waves (GWs) has opened a new window to observe our universe which is inaccessible with other probes. Since 2015, almost 100 GW signals have been observed, allowing us to probe the nature of gravity, study the expansion of the universe as well as probe the equation-of-state of dense nuclear matter. Within the next decade, GW detectors are envisaged to undergo...
The Pierre Auger Observatory, the largest cosmic ray experiment in the world, spans 3,000 km² and employs multiple detection mechanisms for ultra-high energy cosmic rays (UHECRs). Currently, the observatory is undergoing an upgrade to AugerPrime, which introduces a Radio Detector (RD) that enhances detection capabilities within a zenith angle range of 60 to 85 degrees. The RD offers a 100%...
The decays of beauty mesons provide interesting opportunities to study CP violation, for which hadronic B-decays are excellent probes. However, the non-perturbative nature of hadronic decays poses significant challenges for theoretical predictions. To address these complexities, we employ SU(3) flavor symmetry, which assumes the quarks up, down and strange are equivalent under the strong...
Gravitational wave observatories frequently encounter noise transients, called glitches, that overlap with the signal. The glitches need to be carefully reconstructed and subtracted before analysing the signal. When the glitches do not overlap with the signal, the data surrounding it is simply discarded. For the proposed third-generation interferometers, such as the Einstein Telescope, most...
The Heavy Quark Expansion (HQE) is one of the leading tools for calculating decay rates and kinematic moments of inclusive semi-leptonic B-meson decays ($B \rightarrow X_c \, \overline{\nu} \, l $). The HQE is an Operator Product Expansion (OPE) in terms of the inverse of the mass of the heavy bottom quark ($1/m_b$). It introduces nonperturbative HQE parameters which can be determined using...
The NL-eEDM experiment aims to set a new limit on the permanent electric dipole moment of the electron (eEDM), in order to constrain CP-violation as it appears in many standard model extensions. We use an all-optical method to probe properties of the barium-fluoride (BaF) molecule. A novel spin-precession method permits identification of possible false EDM signals from the optical signal[1]....
Calcium-48 is an important isotope of calcium for scientific research.
It has been instrumental in the discovery of the heaviest elements and
has great potential in the search for neutrinoless double-beta decay.
Unfortunately its natural abundance is only 0.18% and the production
costs are around 0.5M€/g. We report on a method to enrich heavy calcium.
Our method using a low melting-point...
An investigation of relatively light (GeV-scale), long-lived right-handed neutrinos is performed within minimal left-right symmetric models using the neutrino-extended Standard Model Effective Field Theory framework. Light sterile neutrinos can be produced through rare decays of kaons, D-mesons, and B-mesons at the Large Hadron Collider (LHC) and the Long-Baseline Neutrino Facility (LBNF) of...
Many theories beyond the Standard Model predict the existence of new heavy bosons. Some of them can decay into SM dibosons (WW, WZ, ZZ, Wh, and Zh) in semi-leptonic final states. This work is the second round of the analysis that combines two separate analyses: VV and Vh (V is either Z or W boson). Harmonization of VV and Vh and all the leptonic channels is done to make it less complex, but...
The upcoming high-luminosity era of the LHC will impose strict requirements on detector technology, particularly in achieving timing resolutions on the order of 50 ps for every pixel of the pixel detectors.
A possible solution is obtained with 3D silicon sensors. They are structured with electrodes penetrating into the substrate, which improves radiation hardness and reduces drift distance,...
Multi-nucleon transfer (MNT) reactions have shown promising tool to produce exotic nuclei and probe the reaction mechanisms that govern nuclear matter under extreme conditions [1].
The gas-filled recoil separator RITU [2] at Jyväskylä Accelerator Laboratory, enables the study of a fraction of transfer products emitted close to zero degrees from the beam. By combining RITU [3] detector...
The Higgs boson decay to two muons allows for the first measurement of the Yukawa coupling of the Higgs to second generation fermions. Despite the relative simplicity of the decay channel, the small mass of the muons and the large irreducible background from off-shell Z and $\gamma$ decays make this very challenging. In this talk I will present a new method for improving the resolution of the...
