Bonn 2020 – wissenschaftliches Programm
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HK 2.2: Vortrag
Montag, 30. März 2020, 17:00–17:15, J-HS A
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
In 2018 the CLAS12 detector started data taking with a polarized 10.6 GeV electron beam at Jefferson Laboratory (JLab). One of the quantities which can be extracted from the data is the moment ALUsin(φ) corresponding to the polarized electron beam spin asymmetry in semi-inclusive deep inelastic scattering.
ALUsin(φ) is a twist-3 quantity that provides information about the quark gluon correlations. It was studied with a 10.6 GeV longitudinally polarized electron beam and an unpolarized liquid hydrogen target.
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 measurement in a large range of z, xB, pT and Q2, including not yet measured kinematic regions, will allow a comparison with different reaction models.
Áron Kripkó is supported by HIC for FAIR.