Is there a bound dineutron in 11Li?

Photodisintegration of {sup 11}Li was accomplished by sending a beam of {sup 11}Li at 28 MeV/nucleon through the equivalent photon field of a lead target. By measuring the complete kinematics of the disintegration products, {sup 9}Li+{ital n}+{ital n}, we constructed the correlation of the angle between the two neutrons in the rest frame of the {sup 11}Li. The correlation is independent of angle. This result argues against the existence of a bound dineutron in the ground state of {sup 11}Li. {copyright} {ital 1996 The American Physical Society.}