[Deeppwg] Abstract for invited talk at CIPANP 2025

nwickjlb nwickjlb at jlab.org
Thu Apr 17 13:49:14 EDT 2025


Dear all,

I have been invited to give an overview talk on "Experimental Results on 
Di-Hadron Production" at the 15th Conference on the Intersections of 
Particle and Nuclear Physics (CIPANP 2025) in Madison, Wisconsin from 
June 8th to 13th. (https://agenda.hep.wisc.edu/event/2257/overview)

Please find an abstract below and let me know if you have any comments. 
I plan to get some preliminary results for dihadron asymmetries from RGC 
data approved for release in May.

Thank you,

Nilanga Wickramaarachchi
Research Scientist
Duke University


"Experimental Results on Di-Hadron Production"

Production of two hadrons in semi-inclusive deep inelastic scattering is 
an important aspect to study in understanding the nucleon structure and 
hadronization. Especially it allows access to quark-gluons correlations 
in the proton, transverse-momentum dependent parton distribution 
functions and spin-orbit correlations in dihadron fragmentation 
functions. In this talk, an overview of the observables accessible with 
dihadron production will be given along with recent experimental 
results, primarily focusing on the data from the CLAS12 experiment at 
Jefferson Lab. Preliminary results will be shown for the target spin and 
double spin asymmetries from $\pi^+\pi^-$ dihadron production  with an 
electron beam scattering off a longitudinally polarized hydrogen in 
solid ammonia (NH$_{3}$) target. The potential for dihadron observables 
accessible with a transversely polarized NH$_{3}$ target will also be 
presented.


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