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Elliptic particles (2D)Set F(A,B) ) to unity to find distance r* * at whichthe particles would just touch:→ overlap vector: * rer rab 21 (1 ) T (1 )1/2m m r m m r* 1 1r e A B e Obtain contact point: *r r pcpcElliptic particles (2D)example:Influence of elongationon packing fraction<strong>for</strong> elliptic particlesN. Berntsen, , 2001