Nexttoleading order BalitskyKovchegov equation with resummation
Here, we solve the BalitskyKovchegov evolution equation at nexttoleading order accuracy including a resummation of large single and double transverse momentum logarithms to all orders. We numerically determine an optimal value for the constant under the large transverse momentum logarithm that enables including a maximal amount of the full NLO result in the resummation. When this value is used, the contribution from the α ^{2} _{s} terms without large logarithms is found to be small at large saturation scales and at small dipoles. Close to initial conditions relevant for phenomenological applications, these fixedorder corrections are shown to be numerically important.
 Authors:

^{[1]};
^{[2]}
 Univ. of Jyvaskyla (Finland); Univ. of Helsinki (Finland)
 Brookhaven National Lab. (BNL), Upton, NY (United States)
 Publication Date:
 Report Number(s):
 BNL1123992016JA
Journal ID: ISSN 24700010
 Grant/Contract Number:
 SC00112704; SC0012704
 Type:
 Accepted Manuscript
 Journal Name:
 Physical Review D
 Additional Journal Information:
 Journal Volume: 93; Journal Issue: 9; Journal ID: ISSN 24700010
 Publisher:
 American Physical Society (APS)
 Research Org:
 Brookhaven National Laboratory (BNL), Upton, NY (United States)
 Sponsoring Org:
 USDOE Office of Science (SC), Nuclear Physics (NP) (SC26)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
 OSTI Identifier:
 1295209
 Alternate Identifier(s):
 OSTI ID: 1250618
Lappi, T., and Mantysaari, H.. Nexttoleading order BalitskyKovchegov equation with resummation. United States: N. p.,
Web. doi:10.1103/PhysRevD.93.094004.
Lappi, T., & Mantysaari, H.. Nexttoleading order BalitskyKovchegov equation with resummation. United States. doi:10.1103/PhysRevD.93.094004.
Lappi, T., and Mantysaari, H.. 2016.
"Nexttoleading order BalitskyKovchegov equation with resummation". United States.
doi:10.1103/PhysRevD.93.094004. https://www.osti.gov/servlets/purl/1295209.
@article{osti_1295209,
title = {Nexttoleading order BalitskyKovchegov equation with resummation},
author = {Lappi, T. and Mantysaari, H.},
abstractNote = {Here, we solve the BalitskyKovchegov evolution equation at nexttoleading order accuracy including a resummation of large single and double transverse momentum logarithms to all orders. We numerically determine an optimal value for the constant under the large transverse momentum logarithm that enables including a maximal amount of the full NLO result in the resummation. When this value is used, the contribution from the α2s terms without large logarithms is found to be small at large saturation scales and at small dipoles. Close to initial conditions relevant for phenomenological applications, these fixedorder corrections are shown to be numerically important.},
doi = {10.1103/PhysRevD.93.094004},
journal = {Physical Review D},
number = 9,
volume = 93,
place = {United States},
year = {2016},
month = {5}
}