Description
Chair: Alessandro Broggio
In this talk, I establish relations between Transverse Momentum Dependent distributions (TMDs) and collinear distributions (PDFs) by defining and analyzing Transverse Momentum Moments (TMMs), which are weighted integrals of TMDs. I discuss the zeroth, first, and second TMMs and present phenomenological results based on current TMD extractions. Furthermore, it is demonstrated that TMMs are...
When the quarkonium is produced in the low-transverse momentum region, the contribution of soft and ultra-soft radiation between the heavy-quark pair becomes relevant. At this region, non-relativistic QCD breaks down and we need to promote the long-distance matrix elements to the TMD shape functions (TMDShFs). I am going to talk about the cross-section factorization for the $J/\psi$...
I discuss the general structure of the power expansion in the transverse momentum dependent (TMD) factorization theorem. Different types of power corrections are important in different circumstances. Among them, kinematic power corrections (KPCs) are especially important since they restore charge conservation and frame invariance, which are violated at a fixed power order. I derive and sum a...
In this talk, I will introduce a novel category of observables known as the semi-inclusive energy correlators (SIECs), an extension of the recently proposed nucleon energy correlator to integrate a new element, the fragmenting energy correlation function. A few applications, including connection to moment of TMD distributions will be presented.
