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

ZEUS collaboration

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The high-precision HERA data allows searches up to TeV scales for beyond the Standard Model contributions to electron-quark scattering. Combined measurements of the inclusive deep inelastic cross sections in neutral and charged current ep scattering corresponding to a luminosity of around 1 fb-1 have been used in this analysis. A new approach to the beyond the Standard Model analysis of the inclusive ep data is presented; simultaneous fits of parton distribution functions together with 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 · 10-16 cm.

Original languageEnglish
Pages (from-to)468-472
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - 10 Jun 2016


FundersFunder number
Science and Technology Facilities CouncilST/N000447/1


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