Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in p+p collisions at s=510 GeV
Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in p+p collisions at s=510 GeV
Dihadron and isolated direct photon-hadron angular correlations are measured in $p+p$ collisions at $\sqrt{s}=510\text{ }\text{ }\mathrm{GeV}$. Correlations of charged hadrons of $0.7<{p}_{T}<10\text{ }\text{ }\mathrm{GeV}/c$ with ${\ensuremath{\pi}}^{0}$ mesons of $4<{p}_{T}<15\text{ }\text{ }\mathrm{GeV}/c$ or isolated direct photons of $7<{p}_{T}<15\text{ }\text{ }\mathrm{GeV}/c$ are used to study nonperturbative effects generated by initial-state partonic transverse …