Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 11: Elektroschwache Physik (Theorie) 2

T 11.1: Vortrag

Montag, 4. März 2013, 16:45–17:00, WIL-A120

Deep Inelastic Lepton Scattering With Polarized Nucleons — •Till Martini¹ and Hubert Spiesberger² — ¹Humboldt-Universität zu Berlin, PEP — ²Johannes-Gutenberg-Universität Mainz, THEP

Knowledge about the spin-dependent gluon densities in the proton may be gained by studying the scaling violation of the structure function g₁. In order to get information on the spin-dependent structure functions (and hence parton distribution functions) it is essential to polarize both leptons and hadrons. Experiments for precision measurements at possible future electron proton or electron ion colliders (EIC, eRHIC, LHeC) with polarized targets require Monte Carlo event generators that allow to simulate complicated experimental conditions and include higher-order radiative corrections. The existing version of DJANGOH has been updated by the option of nucleon polarization to provide a tool to be used at future EICs. I will show how this was realized for both cases of neutral and charged current electroweak interactions including full O(α) corrections. Generated pseudo data according to two design stages of the planned EIC eRHIC at BNL is presented and the expected effect of radiative corrections is illustrated. Simulations of charged current interaction with polarized protons are for example inquired from eRHIC to predict the achievable precision and the accessible phase space (in x, Q²).