Probing the Small-x Gluon Tomography in Correlated Hard Diffractive Dijet Production in Deep Inelastic Scattering

We investigate the close connection between the quantum phase space Wigner distribution of small-x gluons and the color dipole scattering amplitude, and we propose studying it experimentally in the hard diffractive dijet production at the planned electron-ion collider. The angular correlation betwee...

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Bibliographic Details
Published in:Physical review letters 2016-05, Vol.116 (20), p.202301-202301, Article 202301
Main Authors: Hatta, Yoshitaka, Xiao, Bo-Wen, Yuan, Feng
Format: Article
Language:English
Subjects:
Color
Correlation
Dynamic tests
Evolution
Gluons
Nucleons
Scattering amplitude
Wigner distribution
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Summary:We investigate the close connection between the quantum phase space Wigner distribution of small-x gluons and the color dipole scattering amplitude, and we propose studying it experimentally in the hard diffractive dijet production at the planned electron-ion collider. The angular correlation between the nucleon recoiled momentum and the dijet transverse momentum probes the nontrivial correlation in the phase space Wigner distribution. This experimental study not only provides us with three-dimensional tomographic pictures of gluons inside high energy protons-it gives a unique and interesting signal for the small-x dynamics with QCD evolution effects.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.116.202301