Perturbative power Q2-corrections to the structure function g(1)
B. I. Ermolaev, M. Greco, S. I. Troyan
Abstract
We prove that regulating infrared divergencies generates power (~1/(Q2)k) corrections to the spin structure function g1 at small x and large Q2. At the same time it leads to the corrections ~(Q2)k at small Q2. We present the explicit series of such terms as well as the formulae for their resummation. These contributions are not included in the standard analysis of the experimental data. We argue that accounting for such terms can sizably change the impact of the other power corrections conventionally attributed to the higher twists.
Create a lesson
Related papers
First-principle predictions of fragmentation functions via quantum computing
Juan J. Gálvez-Viruet, Felipe J. Llanes-Estrada, Nicolas M. Arenaza et al.
High energy thermal photons from chirally imbalanced QGP
Sourav Duari, Nilanjan Chaudhuri, Pradip Roy et al.
Spin-dependent fermion potentials from mixed tensor couplings of massive spin-1 and spin-2 bosons
D. Khadka, V. V. Flambaum
Building a Better Beta: Nucleation and Timescales in Cosmological Phase Transitions
William Searle, Csaba Balázs
Quantum Steering Geometry at High Energy Particle Colliders
Juan J. Mejia Alvarez, Andrew J. Wildridge, Angelo Arisi et al.
Quantum-statistical effects of bosonic warm dark matter in microscopic interacting dark sectors
Zhijian Zhang