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arXiv · 2510.23404

Pentaquarks on the light front, and their mixture with baryons

Nicholas Miesch·Edward Shuryak·Ismail Zahed
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Abstract

In previous papers we developed the light front formulation for Hamiltonians and wave functions (WFs) for mesons and baryons, with both confinement and chiral symmetry breaking. For baryons limited to the lowest Fock component with three quarks, the longitudinal WF is valued in an equilateral triangle with momentum fractions $x_i,i=1,2,3$. The WF was developed both numerically and using a basis function that diagonalizes the Laplacian with Dirichlet boundary conditions. In this paper we extend this analysis to $n$ quark states, and specialize to pentaquarks ($n=5$). We determine their masses and WFs, and address the mixing between baryons and pentaquarks, the issue central to understanding the observed antiquark sea of baryons.

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Nicholas Miesch, Edward Shuryak, Ismail Zahed. 2025-10-27. Pentaquarks on the light front, and their mixture with baryons. https://arxiv.org/abs/2510.23404

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