20-25 October 2019
PSI
Europe/Zurich timezone

BRAND: Search for BSM physics at TeV scale by exploring the transverse polarization of electrons emitted in neutron decay

22 Oct 2019, 17:26
1m
WHGA/001 - Auditorium (PSI)

WHGA/001 - Auditorium

PSI

Speaker

Mrs Karishma Dhanmeher (Institute of Nuclear Physics, Polish Academy of Sciences)

Description

Neutron and nuclear beta decay correlation coefficients are sensitive to the exotic scalar and tensor interactions that are not included in the Standard Model (SM). The BRAND experiment will measure simultaneously 11 neutron correlation coefficients (a, A, B, D, H, L, N, R, S, U, V ) where 7 of them (H, L, N, R, S, U, V ) depend on the transverse electron polarization – a quantity which vanishes in the SM. The neutron decay correlation coefficients H, L, S, U, V were never attempted experimentally before. The expected impact of the proposed experiment that currently takes off on the cold neutron beamline PF1B at the Institute Laue-Langevin, Grenoble, France, is comparable to that of the beta spectrum shape measurements [1] but offers completely different systematics and additional sensitivity to imaginary parts of the scalar and tensor couplings. In the poster, challenges of the proposed techniques will be presented together with a setup designed for testing them in the real environment at ILL.

*) Poster presenter
[1] L. De Keukeleere et al. – poster in this conference.

Primary authors

Prof. Kazimierz Bodek (1) Institute of Physics, Jagiellonian University, Krakow, Poland) Mrs Karishma Dhanmeher (Institute of Nuclear Physics, Polish Academy of Sciences) Mr Lennert De Keukeleere (3) Institute of Nuclear and Radiation Physics, KU Leuven, Belgium) Dr Adam Kozela (Institute of Nuclear Physics, Polish Academy of Sciences) Dr Marcin Kuzniak (5) Carleton University, Ottawa, Canada) Mr Konrad Lojek (1) Institute of Physics, Jagiellonian University, Krakow, Poland) Mr Henry Przybilski (2) Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland) Dr Krzysztof Pysz (2) Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland) Dr Dagmara Rozpedzik (1) Institute of Physics, Jagiellonian University, Krakow, Poland) Prof. Nathal Severijns (3) Institute of Nuclear and Radiation Physics, KU Leuven, Belgium) Dr Torsten Soldner (Institut Laue-Langevin, Grenoble, France) Prof. Albert Robert Young (6) Department of Physics and Astronomy, North Carolina State University, Raleigh, USA) Dr Jacek Zejma (1) Institute of Physics, Jagiellonian University, Krakow, Poland)

Presentation Materials