Details

Autor(en) / Beteiligte

• Hatta, Yoshitaka
• Zhou, Jian

Titel

Small- x Evolution of the Gluon Generalized Parton Distribution E g of the Nucleon

Ist Teil von

• Physical review letters, 2022-12, Vol.129 (25), Article 252002

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2022

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• Here, we study the small-x evolution equation for the gluon generalized parton distribution Eg of the nucleon. It is shown that Eg at vanishing skewness exhibits the Regge behavior identical to the Balitsky-Fadin Kuraev-Lipatov pomeron despite its association with nucleon helicity-flip processes. We also consider the effect of gluon saturation and demonstrate that Eg gets saturated in the same way as its helicity-nonflip counterpart Hg. Our result has a direct impact on the modeling of Eg as well as the small-x contribution to nucleon spin sum rules