Bent Crystal-Assisted Beam Manipulations

• Davide Annucci (Istituto Nazionale di Fisica Nucleare)

If aligned with the crystal planes within a certain angle (Critical Angle), an impinging particle can be trapped by the inter-planar potential, following a path constrained by the minima of this potential. This effect is known as Channeling. If the crystal is bent, the particle will follow the crystal plane bending. Nowadays it is possible to exploit the coherent interaction of particles in crystals in order to perform beam extraction, collimation and merging (coalescence). The aim of this presentation is to introduce crystal-assisted beam manipulation in particle accelerators, focusing to the actual state-of-the-art applications and further developments of this techniques.

Dicussion

Detecting new fundamental fields with asymmetric binaries

• Susanna Barsanti

Einstein's theory of General Relativity predicts that gravitational waves (GWs) - ripples of space-time itself - are produced when accelerated compact objects spiral around each other until the coalescence. GWs were indeed first detected in 2015 by the ground-based detector LIGO. In the next decade the first space detector, the ESA mission LISA, will be launched. Among the GW source LISA will observe is a type current detectors have not seen yet: a system consisting of a supermassive black hole - millions of times the mass of the Sun - and some compact object of much lower mass, typically a few times the mass of the Sun. The latter inspirals into the former while emitting GWs. In this talk I will present a model of such asymmetric systems in scenarios which include new fundamental fields and particles not usually present in General Relativity or the Standard Model of particle physics, showing how the new fields will leave an imprint on the emitted gravitational waves and how it could be possibly detected by LISA.

Discussion