In this talk, an overview of the physics program, the detector conceptual design, and the project status will be presented. The Electron-Ion Collider in China (EicC) is a proposed high energy nuclear physics facility to be constructed based on the High Intensity heavy-ion Accelerator Facility (HIAF) in Huizhou, China. EicC will be able to place highly polarized ($\sim$80%) electrons in...
The proposed super tau-charm facility (STCF) is a symmetric electron-positron collider, designed to provide $e^+e^−$ interactions at a center-of-mass energy from 2.0 to 7.0 GeV. This energy region corresponds to the transitions between non-perturbative quantum chromodynamics (QCD) and perturbative QCD. Hence, a large variety of topics in elementary particle physics can be pursued at STCF,...
The transverse momentum squared $P_T^2$ distributions of charged hadrons produced in deep inelastic scattering and the azimuthal modulations in their angular distributions provide valuable insight into the transverse motion of partons. Using unpolarized semi-inclusive deep inelastic scattering data collected by the COMPASS Collaboration in 2016 and 2017 on proton target with longitudinally...
Semi-inclusive deep inelastic scattering (SIDIS) measurements provide crucial experimental insight into the three-dimensional momentum structure and spin structure of nucleons. The additional degree of freedom when observing two hadrons in the semi-inclusive final state allows for access to correlations between quark polarization and the angular momentum of final state hadrons through Dihadron...
One of the main objectives of extensive physics program of COMPASS experiment has been to conduct measurements of target-spin asymmetries in semi-inclusive (di-)hadron production in Deep Inelastic Scattering of high-energy muons off polarized targets. In 2022, the latest semi-inclusive DIS measurements were performed using a transversely polarized deuteron target and a 160 GeV/c muon beam....
Relevant information about hadron structure is contained in nonperturbative functions called Transverse Momentum Depentend Parton Distribution Functions (TMD PDFs) and the Collins-Soper kernel, a universal function which regulates their scale evolution.
Usually these functions are obtained by modeling and fitting to experimental data but in recent years lattice calculations have calculated...
We present the preliminary results for the Collins and Sivers amplitudes of the transverse target spin asymmetries (TSAs) in production of neutral kaons ($K^0$) in semi-inclusive deep inelastic scattering. The results were obtained using the data accumulated at COMPASS in 2022 on a transversely polarized $^6$LiD target. The amplitudes were extracted using an unbinned maximum likelihood...
The investigation of Transverse-Spin Dependent Azimuthal Asymmetries in the Drell-Yan process provides a key insight into the spin-dependent structure of nucleons, particularly testing the restricted universality of Transverse-Momentum Dependent Parton Distribution Functions. During the 2015 and 2018 data-taking periods, the COMPASS Collaboration at CERN measured the $\pi^-$p $\rightarrow...
Advancements in precise neutrino experiments offer promising opportunities to explore new physics by examining the effects of Neutral Current Non-Standard Interactions between neutrinos and matter. While neutrino oscillation experiments have already imposed stringent limits on all vector NC NSI flavor elements, axial NC NSI remains elusive in these studies. However, neutrino-nucleon scattering...
