SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 18: Hadron Structure and Spectroscopy II
HK 18.4: Vortrag
Dienstag, 21. März 2023, 18:00–18:15, SCH/A316
SIDIS Kaon Beam Spin Asymmetry Measurements 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−) 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. This multidimensional binning will allow a comparison with different reaction models.
This work is supported by HFHF and funded by DFG (project number: 508107918).