Regular Article - Experimental Physics
Limits on a nucleon–nucleon monopole–dipole coupling from spin relaxation of polarized ultra-cold neutrons in traps
Joint Institute for Nuclear Research, 141980, Dubna, Moscow Region, Russia
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Published online: 19 September 2009
A new limit is presented on the axion-like monopole–dipole P, T-non-invariant interaction in a range (10−4–1) cm. The spin-dependent nucleon–nucleon potential between neutrons and nucleons of the walls of the cavity containing ultra-cold neutrons should affect the neutron depolarization probability at their reflection from the walls. The limit is obtained from existing data on the ultra-cold neutron depolarization probability per one collision with the walls.
PACS: 14.80.Mz – / 12.20.Fv – / 33.25.+k – / 14.20.Dh –
© Springer-Verlag , 2009