[Clas12_rgh] beam energy

[Eugene Pasyuk]

Hello RGH enthusiasts,

While thinking of the chicane design, it occurred to me that, so far, in all our simulations, we have considered beam energy of 11 GeV. 11 GeV may not be available. Since the target magnet field is fixed to be 5 T, we will have more bending for lower beam energies. It has two consequences: more background in the forward detector and a larger offset of the middle chicane magnets. The latter means we would need a wider opening of the chicane magnets. The maximum opening for the existing design that produces enough BdL needs to be checked with the company. It may require a substantial redesign of the magnet compared to the existing version they built for someone.
We should define the minimum acceptable beam energy for this experiment and run simulations with this condition.


-Eugene




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