Crystal channeling of LHC forward protons with preserved distribution in phase space

V. M. Biryukov

doi:10.1016/j.physletb.2007.10.051

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arXiv · 0704.0031

Crystal channeling of LHC forward protons with preserved distribution in phase space

V. M. Biryukov

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Abstract

We show that crystal can trap a broad (x, x', y, y', E) distribution of particles and channel it preserved with a high precision. This sampled-and-hold distribution can be steered by a bent crystal for analysis downstream. In simulations for the 7 TeV Large Hadron Collider, a crystal adapted to the accelerator lattice traps 90% of diffractively scattered protons emerging from the interaction point with a divergence 100 times the critical angle. We set the criterion for crystal adaptation improving efficiency ~100-fold. Proton angles are preserved in crystal transmission with accuracy down to 0.1 microrad. This makes feasible a crystal application for measuring very forward protons at the LHC.

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V. M. Biryukov. 2007-03-31. Crystal channeling of LHC forward protons with preserved distribution in phase space. https://doi.org/10.1016/j.physletb.2007.10.051

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