Parts | Days | Selection | Search | Updates | Downloads | Help

HK: Fachverband Physik der Hadronen und Kerne

HK 27: Poster Session

HK 27.2: Poster

Wednesday, March 18, 2026, 16:15–18:30, Redoutensaal

Accessing transverse momentum dependent distribution functions with semi-inclusive deep inelastic single pion and kaon production — •Stefan Diehl^1,2 and Aron Kripko¹ for the CLAS collaboration — ¹II. Physikalisches Institut, JLU Gießen, Gießen, Germany — ²University of Connecticut, Storrs, CT, USA

Semi-inclusive deep inelastic scattering is a well-established tool to study TMDs and fragmentation functions. With the CLAS12 detector at Jefferson Laboratory (JLab), precise, multidimensional measurements of cross sections and asymmetry observables become possible in the valence quark regime for the first time. Based on the new high statistics data, the polarized structure-function ratio F_LU^sinφ/F_UU, as well as the un-polarized cross section modulations F_UU^cosφ and F_UU^{cos 2 φ} were studied for single pion and kaon SIDIS. The contribution will present a comprehensive multidimensional study for all three pions as well as positive kaons and discuss the connection of the observable to TMDs and the impact of the new data on our understanding of the involved TMDs and their flavour separation. *The work is supported by Deutsche Forschungsgemeinschaft (Project No. 508107918).

Keywords: TMD; SIDIS; CLAS12; electron scattering