Diffractive Dijet Production and Wigner Distributions from the Color Glass Condensate - INSPIRE

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Diffractive Dijet Production and Wigner Distributions from the Color Glass Condensate

Heikki Mäntysaari
(
- Jyvaskyla U. and
- Helsinki Inst. of Phys.
)
,
Niklas Mueller
(
- Brookhaven
)
,
Björn Schenke
(
- Brookhaven
)

Feb 13, 2019

20 pages

Published in:

Phys.Rev.D 99 (2019) 7, 074004

Published: Apr 9, 2019

e-Print:

1902.05087 [hep-ph]

DOI:

10.1103/PhysRevD.99.074004

View in:

ADS Abstract Service

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Abstract: (APS)

Experimental processes that are sensitive to parton Wigner distributions provide a powerful tool to advance our understanding of proton structure. In this work, we compute gluon Wigner and Husimi distributions of protons within the color glass condensate framework, which includes a spatially dependent McLerran-Venugopalan initial configuration and the explicit numerical solution of the Jalilian-Marian–Iancu–McLerran–Weigert–Leonidov–Kovner equations. We determine the leading anisotropy of the Wigner and Husimi distributions as a function of the angle between the impact parameter and transverse momentum. We study experimental signatures of these angular correlations at a proposed electron-ion collider by computing coherent diffractive dijet production cross sections in e+p collisions within the same framework. Specifically, we predict the elliptic modulation of the cross section as a function of the relative angle between the nucleon recoil and dijet transverse momentum for a wide kinematical range. We further predict its dependence on the collision energy, which is dominated by the growth of the proton with decreasing x.

Note:

prefactors for longitudinal and transverse cross sections corrected, figures updated, typos corrected, 20 pages, 22 figures

Strong Interactions
electron p: colliding beams
electron p: scattering
color glass condensate
diffraction: production
dijet: production
dijet: transverse momentum
Wigner
numerical calculations

References(162)

Figures(26)

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