Abstract
We show within the saturation framework that measurements of exclusive vector meson production at high energy provide evidence for strong geometric fluctuations of the proton. In comparison, the effect of saturation scale and color charge fluctuations is weak. This knowledge will allow detailed future measurements of the incoherent cross section to tightly constrain the fluctuating geometry of the proton as a function of the parton momentum fraction .
- Received 18 March 2016
DOI:https://doi.org/10.1103/PhysRevLett.117.052301
© 2016 American Physical Society
Physics Subject Headings (PhySH)
Viewpoint
Of Gluons and Fireflies
Published 25 July 2016
Improved models of gluon fluctuations within protons have been developed and applied to particle collision data, pointing to strong gluon fluctuations at high energies.
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