Speaker
Description
A momentum charge correlation ratio observable $r_{c}$, generalized from the balance function [1], is measured using data recorded with the H1 experiment at HERA during 2003 to 2007. This variable distinguishes between same-sign and opposite-sign charged particle pairs[2] in a jet. The average $r_{c}$ is studied for two configurations (prongs) of the leading particles in the jet, defined with the help of declustering in a recursive soft drop technique. When resolved as as a function of other kimenatic variables, such as the formation time, this probes the transition from non-perturbative to perturbative aspects of QCD. This sets the path for a novel way of studying jet substructure and the evoluation of partons in a jet. The data of $r_{c}$ at different prongs reveal differences between the first and subsequent splits. Data are confronted with predictions from various event generators.
H1prelim-22-032
[1] S. A. Bass, P. Danielewicz and S. Pratt, Phys. Rev. Lett. 85 (2000), 2689-2692 doi:10.1103/PhysRevLett.85.2689 [arXiv:nucl-th/0005044].
[2] Y. T. Chien, A. Deshpande, M. M. Mondal and G. Sterman, [arXiv:2109.15318]
| In-person participation | No |
|---|
