Measures of pion and kaon structure from generalised parton distributions

Autor:	Zhang, Jin-Li, Raya, Khépani, Chang, Lei, Cui, Zhu-Fang, Morgado, José Manuel, Roberts, Craig D., Rodríguez-Quintero, José
Rok vydání:	2021
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2021.136158
Popis:	Pion and kaon structural properties provide insights into the emergence of mass within the Standard Model and attendant modulations by the Higgs boson. Novel expressions of these effects, in impact parameter space and in mass and pressure profiles, are exposed via $\pi$ and $K$ generalised parton distributions, built using the overlap representation from light-front wave functions constrained by one-dimensional valence distribution functions that describe available data. Notably, e.g. $K$ pressure profiles are spatially more compact than $\pi$ profiles and both achieve near-core pressures of similar magnitude to that found in neutron stars. Comment: 9 pages, 6 figures, 2 tables. Accepted for publication in Phys. Lett. B
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2101.12286 Zobrazit plný text záznamu View this record from Arxiv