DNP Seminar

02-21-2025 11:00 Conference hall (bldg. 42, 3rd floor)

"Quantum and classical dynamics of neutron in a magnetic field"

Anton V. Bogomyagkov, V. Druzhinin, E. Levichev, A. Milstein, I. Okunev, S. Taskaev

Budker Institute of Nuclear Physics of Siberian Branch Russian Academy of Sciences (BINP SB RAS), Novosibirsk

The talk presents solution of quantum problem of neutron propagation in the magnetic field with multipole field expansion. Rigorous solution of the Pauli equation for neutron reveals existence of two solutions, finite and infinite, for any multipole configuration. As an example, we present detailed study of neutron motion in quadrupole and sextupole magnets. Our predictions agree with the results of Stern-Gerlach experiment for neutrons. To verify existence of finite and infinite motion, we discuss an experiment which could be performed in the Budker Insitute of Nuclear Physics using existing equipment. We conclude with considerations of neutron storage ring with straight section and discrete magnets focusing the beam.