[Theory-seminars] Cake Seminar Tomorrow - JSA/HUGS Fellows

[Gloria Montana-Faiget]

Dear All,


Next Wednesday, June 18, we will have a cake seminar given by the JSA/HUGS Fellows, Navpreet Kaur of India’s National Institute of Technology Jalandhar and Ravi Singh of the Indian Institute of Technology Bombay in CC F224-F225 and on the following Zoom link:

https://jlab-org.zoomgov.com/j/1602068360?pwd=0R3cacaKITj2mOJPjBOcVo00bE2yAm.1

Please see below for the titles and abstracts.


Cake Seminar: Wednesday, June 18th, 2025 at 1pm EDT

Speaker: Navpreet Kaur (NIT Jalandhar)

Title: Tomography of Hadrons Through Generalized Parton Distributions.

Abstract: To portray the internal structure of hadrons, the understanding of the intrinsic properties of their building blocks i.e. quarks and gluons is indispensable. We present the study of spatial distribution of quark flavors of hadrons via both chiral-even and chiral odd sector of generalized parton distributions (GPDs), emphasizing the difference arising from different quark flavors of hadrons. This structural anatomization is carried out by making the use of light-front dynamics. Distributions in the forward limit and lowest moment of GPDs will also be discussed with their comparison to other available model predictions and lattice data. Additionally, we explore how quark dynamics alters in the presence of isospin asymmetric nuclear matter.


Speaker: Ravi Singh (IIT Bombay)

Title: Mapping the Transverse Spin Sum Rule in Position Space.

Abstract: We discuss in detail the relativistic spatial distribution of transverse angular momentum, including both orbital and intrinsic spin contributions. Using the quantum phase-space formalism, we begin with the definition of the three-dimensional spatial distributions of transverse orbital angular momentum and intrinsic spin in a generic Lorentz frame. By integrating these three-dimensional spatial distributions over the longitudinal axis, we derive for the first time the relativistic spatial distributions of transverse orbital angular momentum, intrinsic spin, and total angular momentum for spin-0 and spin-1/2 targets in the transverse plane. We verify the transverse spin sum rule for spin-0 and spin-1/2 systems and find that the transverse total angular momentum distribution is non-trivial, even for spin-0 targets. We also show how the distributions of transverse orbital angular momentum, intrinsic spin, and total angular momentum change with the target momentum.


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