Metallocene catalyst system for producing LLDPE copolymers with tear resistance and low haze

An ethylene polymer having:

• a density in a range from about 0.908 to about 0.925 g/cm3;
• a melt index in a range from about 0.5 to about 3 g/10 min;
• a ratio of Mw/Mn in a range from about 2 to about 4;
• a ratio of Mz/Mw in a range from about 1.6 to about 2.3;
• a CY-a parameter in a range from about 0.45 to about 0.6;
• and
• an ATREF profile characterized by a single peak at a peak ATREF temperature in a range from about 76 to about 88° C., and by less than or equal to about 4.5 wt % of the polymer eluting above a temperature of 91° C.

An ethylene polymer having:

• a density in a range from about 0.908 to about 0.925 g/cm3;
• a melt index in a range from about 0.5 to about 3 g/10 min;
• a ratio of Mw/Mn in a range from about 2 to about 4;
• a ratio of Mz/Mw in a range from about 1.6 to about 2.3;
• a CY-a parameter in a range from about 0.45 to about 0.6;
• and
• an ATREF profile characterized by a single peak at a peak ATREF temperature in a range from about 76 to about 90° C., by less than or equal to about 12 wt % of the polymer eluting above a temperature of 91° C., and by less than or equal to about 0.1 wt % of the polymer eluting above a temperature of 100° C.