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HK: Fachverband Physik der Hadronen und Kerne
HK 58: Hadron Structure and Spectroscopy VIII
HK 58.3: Vortrag
Mittwoch, 13. März 2024, 18:15–18:30, HBR 62: EG 19
Exploring s quark TMD-s with charged kaon SIDIS with CLAS12 — •Áron Kripkó1, Stefan Diehl1,2, and Kai-Thomas Brinkmann1 for the CLAS collaboration — 1Justus Liebig Universität Gießen, 35390 Gießen, Germany — 2University of Connecticut, Storrs, CT 06269, USA
A multidimensional study of the structure function ratio FLUsin(φ)/FUU has been performed for K±, based on the measurement of beam-spin asymmetries. It uses the high statistics data recorded with the CLAS12 spectrometer at Jefferson Laboratory. The 10.6 GeV longitudinally polarized electron beam interacted with an unpolarized liquid hydrogen target during the experiment. FLUsin(φ) is a twist-3 quantity that provides information about the quark-gluon-correlations in the proton.
The talk will present a simultaneous analysis of two kaon channels (K+ and K−) using machine learning improved particle identification, over a large kinematic range with virtualities Q2 ranging from 1 GeV2 to 8 GeV2. The precise multidimensional measurement was performed in a large range of z, xB, pT and Q2 for the first time in the valence quark region. Based on the precise multidimensional data, a comparison with different TMD based reaction models will be presented for the different kinematic regions.
This work is supported by HFHF and funded by DFG (Project No: 508107918).
Keywords: Nucleon Structure