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arXiv · 2202.01998

Bayesian inference of the fluctuating proton shape

Heikki Mäntysaari·Björn Schenke·Chun Shen·Wenbin Zhao
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Abstract

Using Bayesian inference, we determine probabilistic constraints on the parameters describing the fluctuating structure of protons at high energy. We employ the color glass condensate framework supplemented with a model for the spatial structure of the proton, along with experimental data from the ZEUS and H1 Collaborations on coherent and incoherent diffractive $\mathrm{J}/ψ$ production in e+p collisions at HERA. This data is found to constrain most model parameters well. This work sets the stage for future global analyses, including experimental data from e+p, p+p, and p+A collisions, to constrain the fluctuating structure of nucleons along with properties of the final state.

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Heikki Mäntysaari, Björn Schenke, Chun Shen, Wenbin Zhao. 2022-02-04. Bayesian inference of the fluctuating proton shape. https://doi.org/10.1016/j.physletb.2022.137348

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