Contribution to a conference proceedings/Contribution to a book

PUBDB-2023-00207

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Beam-Spin Induced Polarization of $\Lambda$ and $\bar{\Lambda}$ Hyperons in Semi-Inclusive Deep-Inelastic Scattering

Veretennikov, D. (Corresponding author)Extern* ; HERMES Collaboration

2022
Journal of the Physical Society of Japan

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Please use a persistent id in citations: doi:10.7566/JPSCP.37.020115  doi:10.3204/PUBDB-2023-00207

Abstract: The beam-spin induced polarization of $\Lambda$ and $\bar{\Lambda}$ hyperons produced in deep-inelastic scattering of longitudinally polarized positrons from unpolarized nucleons is being investigated by the HERMES experiment at a positron beam energy of 27.6 GeV. The spin-transfer coefficients D$_{LX}$ and D$_{LZ}$, i.e., transverse and along the hyperon momentum direction, are studied as function of the relevant kinematic variables. A novel extraction method, which does not rely on accurate detector-response simulations, is employed and presented here for the first time exploiting the regular reversal of the beam helicity at the HERMES experiment.

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Contributing Institute(s):

1. HERMES Kollaboration (HERMES)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. HERA: HERMES

Appears in the scientific report 2022

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Database coverage:
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