Editing Polarizability (section)

=={{anchor|Magnetic polarizability}}Magnetic polarizability==
Magnetic polarizability defined by [[Spin (physics)|spin]] interactions of [[nucleon]]s is an important parameter of [[deuteron]]s and [[hadron]]s.  In particular, measurement of [[tensor]] polarizabilities of nucleons yields important information about spin-dependent nuclear forces.<ref name="Silenko">{{cite journal |author=A. J. Silenko |title=Manifestation of tensor magnetic polarizability of the deuteron in storage ring experiments |journal=The European Physical Journal Special Topics |publisher=Springer Berlin / Heidelberg |date=18 Nov 2008 |volume=162 |issue=1 |pages=59–62 |doi=10.1140/epjst/e2008-00776-9 |bibcode=2008EPJST.162...59S |s2cid=122690288 }}</ref>

The method of spin amplitudes uses [[Mathematical formulation of quantum mechanics|quantum mechanics formalism]] to more easily describe spin dynamics.  Vector and tensor polarization of particle/nuclei with spin {{math|S ≥ 1}} are specified by the unit polarization vector <math>\mathbf{p}</math> and the polarization tensor ''P''<sub>`</sub>.  Additional tensors composed of products of three or more spin matrices are needed only for the exhaustive description of polarization of particles/nuclei with spin {{math|S ≥ {{frac|3|2}}}}.<ref name="Silenko"/>