Realtime dynamics of hyperon spin correlations from string fragmentation in a deformed four-flavor Schwinger model

Barata, João; Gong, Wenjie; Venugopalan, Raju

doi:10.1103/PhysRevD.109.116003

Realtime dynamics of hyperon spin correlations from string fragmentation in a deformed four-flavor Schwinger model

Journal Article · Fri Jun 07 00:00:00 EDT 2024 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.109.116003· OSTI ID:2371604

; Gong, Wenjie; Venugopalan, Raju

Self-polarizing weak decays of $Λ$ -hyperons provide unique insight into the role of entanglement in the fragmentation of QCD strings through measurements of the spin correlations of $Λ \bar{Λ}$ pairs produced in collider experiments. The simplest quantum field theory representing the underlying parton dynamics is the four-flavor massive Schwinger model plus an effective spin-flip term, where the flavors are mapped to light (up or down) and heavy (strange) quarks and their spins. This construction provides a novel way to explore hyperon spin correlations in $1 + 1$ dimensions. We investigate the evolution of these correlations for different string configurations that are sensitive to the rich structure of the model Hamiltonian.

Published by the American Physical Society 2024

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Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0012704

OSTI ID:: 2371604

Alternate ID(s):: OSTI ID: 2372839

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 11 Vol. 109; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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