Lennard-Jones Type Excluded-Volume Parameters

	ev-LJ : list in the following form;
	(define ev-LJ '(
	 (; LJ type 1
	  10.0 ; 1) LJ parameter epsilon in kT (so this is dimensionless value)
	  1.0  ; 2) LJ parameter r0 in "length" (so this is dimensionless value)
	  (    ; 3) list of particles
	   0 1 2
	  )
	 )
	 (; LJ type 2
	  8.0  ; 1) LJ parameter epsilon in kT (so this is dimensionless value)
	  2.0  ; 2) LJ parameter r0 in "length" (so this is dimensionless value)
	  (    ; 3) list of particles
	   3 4
	  )
	 )
	))