Double-lens technique for efficient capture of short-lived particles by a crystal

Biryukov, V.M.

doi:10.1016/j.nimb.2021.10.008

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2022

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“…While the Lindhard angle depends on the crystal material and the particle energy, and cannot be increased to trap particles in a wider range of directions, the overall geometry of the setup can be composed in such a way that the atomic planes are laid out in different directions, matching the initial angle of more of the produced particles [19,20]. This idea can be realized by replacing the plain crystal of the nominal setup by a single crystal lens, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Improved experimental layout for dipole moment measurements at the LHC

Biryukov

Vidal

2022

Eur. Phys. J. C

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The electric and magnetic dipole moment of charm and bottom baryons can be measured for the first time by using bent crystal technology at the LHC. The experimental method, proposed in recent years, suffers from limited statistics, which dominates the uncertainty of the measurement. In this work, we present an alternative experimental layout, based on the use of crystal lenses, that improves the trapping efficiency by about a factor 15 (35) for a 2-cm (5-mm) target with respect to the nominal layout, with plain crystal faces. The efficiencies are evaluated taking into account the constraints from the LHC machine, and the technical challenges to realize this novel experimental method are discussed.

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Section: Introductionmentioning

confidence: 99%