NUSTAR Seminar

Weak Interaction Physics at SARAF

by Ben Ohayon (Racah Institute of Physics, Jerusalem)

Thursday, June 7, 2018 from to (Europe/Berlin)
at GSI ( SB3 2.283 )

In this talk I will review the current status of the radioisotopes trapping program at the Soreq Applied Research Accelerator Facility (SARAF), and prospects for measurements at the upgraded accelerator: SARAF-II.
SARAF-II is planned as a medium energy (40MeV), high current (5mA) proton/deuteron machine. Combined with a liquid lithium target (LiLit2), it is expected to produce up to 10^15 neutrons/s. This high neutron flux, impinging upon a proper secondary target, is a starting ground for producing unprecedented amounts of light radioactive isotopes (10^12/s) [1], for which the main decay channel is beta-decay.

With such copious amounts of these isotopes, the possibility arises to search for beyond standard model physics by measuring kinematics of many (>10^7) beta-decay events and combing the spectrum for the distinct signatures of new exotic interactions.Lastly, I will briefly explain how the use of traps (both atomic and electrostatic) and in-vacuum detectors for decay-products, provide an ideal scheme for inferring decay kinematics [3]. A method which is similar to the proposed decay-spectroscopy setup at MATS [4].

[1] I. Mardor et. al., The Soreq Applied Research Accelerator Facility (SARAF) - Overview, Research
Programs and Future Plans (2018).

[2] M. Gonzalez-Alonso, O. Naviliat-Cuncic, N. Severijns. New physics searches in nuclear and neutron
β-decay (2018).

[3] J A Behr and G Gwinner, Standard model tests with trapped radioactive atoms (2009).

[4] D Rodriguez et. al., Mats and LaSpec: High-precision experiments using ion traps and lasers at Fair (2010