Abstract
We report the first measurement of the full angular distribution for inclusive decays in collisions at . The measurements are made for transverse momentum and rapidity in the Helicity, Collins-Soper, and Gottfried-Jackson reference frames. In all frames the polar coefficient is strongly negative at low and becomes close to zero at high , while the azimuthal coefficient is close to zero at low , and becomes slightly negative at higher . The frame-independent coefficient is strongly negative at all in all frames. The data are compared to the theoretical predictions provided by nonrelativistic quantum chromodynamics models.
2 More- Received 21 December 2016
DOI:https://doi.org/10.1103/PhysRevD.95.092003
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