2019 CAP Congress / Congrès de l'ACP 2019

Session

R2-8 Ultracold Neutrons (DNP/PPD) | Neutrons ultrafroids (DPN/PPD)

R2-8

6 Jun 2019, 13:15

Simon Fraser University

Conveners

R2-8 Ultracold Neutrons (DNP/PPD) | Neutrons ultrafroids (DPN/PPD)

• Beatrice Franke (TRIUMF)

2558. Progress on ultracold neutrons at TRIUMF

Jamieson Blair (University of Winnipeg)

06/06/2019, 13:15

Nuclear Physics / Physique nucléaire (DNP-DPN)

Invited Speaker / Conférencier(ère) invité(e)

The TRIUMF Ultracold Advanced Neutron (TUCAN) source, a collaboration between Canadian and Japanese researchers has had two successful ultracold neutron (UCN) runs, demonstrating the production of 70,000 UCN in standard operation. The UCN are produced by cooled spallation neutrons down-scattering in energy in He-II, and at UCN temperatures can be guided in beam-pipes to experimental areas. ...

2601. Improving the sensitivity of the neutron electric dipole moment experiment at TRIUMF

Mr Steve Sidhu (SFU/TRIUMF)

06/06/2019, 13:45

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle)

The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration is currently developing a new ultra-cold neutron (UCN) facility with the main scientific objective to measure the neutron electric dipole moment (nEDM). To conduct the nEDM search experiment, the neutrons must be transported to a precession chamber, be stored, and deposited into the detectors efficiently.  This is especially...

2654. A new measurement of the permanent electric dipole moment of 129-Xe using 3-He comagnetometry and SQUID detection

Florian Kuchler

06/06/2019, 14:00

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Non-Student) / Orale (non-étudiant(e))

Permanent electric dipole moments (EDMs) arise due to the breaking of time-reversal or, equivalently, CP-symmetry. Although EDM searches have so far only set upper limits, which are many orders of magnitude larger than Standard Model (SM) predictions, the motivation for more sensitive EDM searches is stronger than ever.
The HeXe EDM experiment is using SQUIDs to detect the freely precessing...

2730. Producing ultracold neutrons with a spallation source and superfluid helium

Wolfgang Schreyer (TRIUMF)

06/06/2019, 14:15

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral (Non-Student) / Orale (non-étudiant(e))

Ultracold neutrons are an ideal tool to do precise measurements of fundamental properties of the neutron. However, such measurements are currently limited by the small number of ultracold neutrons that the handful of operational sources worldwide can provide.
The TRIUMF UltraCold Advanced Neutron (TUCAN) collaboration has recently produced the first ultracold neutrons at TRIUMF, using a new,...

2588. Measurements of the first polarized ultracold neutrons at TRIUMF

Sean Hansen-Romu (University of Manitoba)

06/06/2019, 14:30

Nuclear Physics / Physique nucléaire (DNP-DPN)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle)

During an experimental run in fall 2018 with the ultracold neutron (UCN) source at TRIUMF we created polarized UCN by passing them through a thin magnetized iron foil. This talk will describe results of measurements of the UCN polarization and spin flipping efficiency measured by the TRIUMF Ultracold Advance Neutron (TUCAN) Collaboration using a pair of these foils and a pair of identical spin...