How to find the value of the baryon asymmetry in this paper

[Safinaz]

TL;DR

Any help how to find the right value of the baryon asymmetry or the baryon density expected from the Big Bang Nucleosynthesis (BBN) of order $\sim 10^{-10}$ in a paper

I'm trying to understand from this paper

https://pdg.lbl.gov/2020/reviews/rpp2020-rev-bbang-nucleosynthesis.pdf

What is the value of the baryon to photon ratio $\eta=n_b/n_\gamma$ as named in figure 24.1, but I can't get from the figure or the paper how $\eta$ is of order $10^{-10}$

Any help in reading such papers?

I mean I found in another study that the value of $\eta$ as expected from BBN is of order: $6.07\pm0.33 \times 10^{-10}$

So where can we find such value in the mentioned paper?

 

[Vanadium 50]

Any help in reading such papers?

That's a review. It's job is to summarize and point you to the references. To understand the details, read the references.

 

[Safinaz]

That's a review. It's job is to summarize and point you to the references. To understand the details, read the references.

I was reading a study about baryogenesis and the authors cited the mentioned paper and its $\eta$ value, so I just wonder how they concluded this value

 

[Vanadium 50]

That's a review. It's job is to summarize and point you to the references. To understand the details, read the references.

 

[Orodruin]

It literally briefly mentions how things are done and give you the references to where the details can be found.