Limits on the effective quark radius from inclusive ep scattering at HERA

Apr 14, 2016, 9:40 AM
15m
SR2 (DESY Hamburg)

SR2

DESY Hamburg

Electroweak Physics and Beyond the Standard Model WG3 Electroweak Physics and Beyond the Standard Model

Speaker

Mr Oleksii Turkot (DESY)

Description

The high precision HERA combined measurement of inclusive deep inelastic cross sections in neutral and charged current ep scattering, corresponding to a luminosity of about 1 fb-1, permits searches for new contributions to electron-quark scattering beyond the Standard Model up to TeV scales. A new approach to beyond the Standard Model analysis of the inclusive ep data is presented; simulataneous fits of parton distribution functions and contributions of "new physics" processes were performed. Results are presented considering a finite radius of quarks within the quark form-factor model. The resulting 95% C.L. upper limit on the effective quark radius is 0.43 x 10^-16 cm.

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