Prospects for HERMES-spin structure studies at HERA | Zendy

H. E. Jackson | Zendy

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Prospects for HERMES-spin structure studies at HERA

Author(s) -

H. E. Jackson

Publication year - 1994

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/34400

Subject(s) - hera , physics , helicity , particle physics , hadron , spin structure , nuclear physics , pion , nucleon , electron , quark , spin (aerodynamics) , deuterium , particle identification , monte carlo method , spectrometer , quantum chromodynamics , statistics , mathematics , quantum mechanics , detector , antiferromagnetism , optics , thermodynamics , condensed matter physics

HERMES (HERA Measurement of Spin), is a second generation experiment to study the spin structure of the nucleon by using polarized internal gas targets in the HERA 35-GeV electron storage ring. Scattered electrons and coincident hadrons will be detected in an open geometry spectrometer which will include particle identification. Measurements are planned for each of the inclusive structure functions, g{sub 1},(x), g{sub 2}(x), b{sub 1}(x) and A(x), as well as the study of semi-inclusive pion and kaon asymmetries. Targets of hydrogen, deuterium and {sup 3}He will be studied. The accuracy of data for the inclusive structure functions will equal or exceed that of current experiments. The semi-inclusive asymmetries will provide a unique and sensitive probe of the flavor dependence of quark helicity distributions and properties of the quark sea. Monte Carlo simulations of HERMES data for experiment asymmetries and polarized structure functions are discussed

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