  \peacock \lemur\begin {array} { l l l } { \rm r e g } \, \, \varepsilon & = & { \rm r e g } \, \, p / D = \varepsilon _ { c } ^ { ( 1 ) } \\ { \rm r e g \, } p _ { \perp } & = & - { \rm r e g } \, \, \varepsilon , \end {array}