When gluons go odd: how classical gluon fields generate odd azimuthal harmonics for the twogluon correlation function in highenergy collisions
We show that, in the saturation/Color Glass Condensate framework, odd azimuthal harmonics of the twogluon correlation function with a longrange separation in rapidity are generated by the higherorder saturation corrections in the interactions with the projectile and the target. At the very least, the odd harmonics require three scatterings in the projectile and three scatterings in the target. We derive the leadingorder expression for the twogluon production cross section which generates odd harmonics: the expression includes allorder interactions with the target and three interactions with the projectile. Here, we evaluate the obtained expression both analytically and numerically, confirming that the oddharmonics contribution to the twogluon production in the saturation framework is nonzero.
 Authors:

^{[1]};
^{[2]}
 The Ohio State Univ., Columbus, OH (United States)
 Brookhaven National Lab. (BNL), Upton, NY (United States)
 Publication Date:
 Report Number(s):
 RBRC1272; BNL2035912018JAAM
Journal ID: ISSN 24700010
 Grant/Contract Number:
 SC0012704; SC0004286
 Type:
 Published Article
 Journal Name:
 Phys Rev D
 Additional Journal Information:
 Journal Volume: 97; Journal Issue: 9; Journal ID: ISSN 24700010
 Research Org:
 Brookhaven National Laboratory (BNL), Upton, NY (United States)
 Sponsoring Org:
 USDOE Office of Science (SC), Nuclear Physics (NP) (SC26); RIKEN
 Country of Publication:
 United States
 Language:
 English
 Subject:
 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
 OSTI Identifier:
 1437684
 Alternate Identifier(s):
 OSTI ID: 1435744
Kovchegov, Yuri V., and Skokov, Vladimir V.. When gluons go odd: how classical gluon fields generate odd azimuthal harmonics for the twogluon correlation function in highenergy collisions. United States: N. p.,
Web. doi:10.1103/PhysRevD.97.094021.
Kovchegov, Yuri V., & Skokov, Vladimir V.. When gluons go odd: how classical gluon fields generate odd azimuthal harmonics for the twogluon correlation function in highenergy collisions. United States. doi:10.1103/PhysRevD.97.094021.
Kovchegov, Yuri V., and Skokov, Vladimir V.. 2018.
"When gluons go odd: how classical gluon fields generate odd azimuthal harmonics for the twogluon correlation function in highenergy collisions". United States.
doi:10.1103/PhysRevD.97.094021.
@article{osti_1437684,
title = {When gluons go odd: how classical gluon fields generate odd azimuthal harmonics for the twogluon correlation function in highenergy collisions},
author = {Kovchegov, Yuri V. and Skokov, Vladimir V.},
abstractNote = {We show that, in the saturation/Color Glass Condensate framework, odd azimuthal harmonics of the twogluon correlation function with a longrange separation in rapidity are generated by the higherorder saturation corrections in the interactions with the projectile and the target. At the very least, the odd harmonics require three scatterings in the projectile and three scatterings in the target. We derive the leadingorder expression for the twogluon production cross section which generates odd harmonics: the expression includes allorder interactions with the target and three interactions with the projectile. Here, we evaluate the obtained expression both analytically and numerically, confirming that the oddharmonics contribution to the twogluon production in the saturation framework is nonzero.},
doi = {10.1103/PhysRevD.97.094021},
journal = {Phys Rev D},
number = 9,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}