Heavy quarkonium production in hadronic collisions in TMD framework

Abstract

Heavy quarkonium (${\rm Y}$) production at low transverse momentum ($P_{\perp }$) in high-energy hadronic collisions is revisited from the point of view of transverse momentum dependent (TMD) framework. We perform resummation of double logarithmic correction associated with initial-state soft gluon shower for $b\bar{b}$ production by employing Collins-Soper-Sterman (CSS) formalism. We show that the CSS formalism provides a nice description of ${\rm Y}$ production data in p+$\bar{\mathrm{p}}$ collisions at Tevatron and p+p collisions at the LHC.

Comments: 6 pages, 2 figures, proceedings of QCD Evolution 2017, 22-26 May 2017, Newport News, VA-USA