The PIENU experiment at TRIUMF has provided, to date, the most precise experimental determination of $R^\pi_{e/\mu}=\frac{\pi^+\rightarrow e^+(\gamma)}{\pi^+\rightarrow \mu^+(\gamma)}$, the ratio of pions decaying to positrons relative to muons. While $R^\pi_{e/\mu}$ is more than an order of magnitude less precise that the Standard Model (SM) calculation, the PIENU result is a precise test of...
Located at SuperKEKB, an asymmetric $e^{+} e^{-}$ collider and the world’s first super B-Factory, the Belle II experiment is searching for evidence of new physics at the precision frontier. Since recording of physics data commenced in 2019, SuperKEKB has claimed the record as the world’s highest luminosity particle collider while steadily approaching its target integrated luminosity of 50...
The strange quark is the lightest sea quark in the proton after the up and down quarks, and its production at the LHC is crucial for the understanding of proton internal structure and fragmentation processes. In this work, strange particles are reconstructed using minimum-bias data from $pp$ collisions at 13 TeV taken by the ATLAS detector. Their kinematic distributions and production...
This study investigates the impact of vector-like quarks on rare B-decays, focusing on recent experimental searches. Vector-like quarks, an intriguing feature of many extensions beyond the Standard Model (SM), offer a unique avenue for probing physics BSM. We consider extending the standard Model by adding a vector-like isosinglet down-type quark. Experiments at LHCb and Belle II are actively...
