Constraining the f0(980) Structure and Formation Dynamics via Anisotropy-Response Scaling
Abstract
A species-resolved anisotropy-response scaling framework is used to investigate the structure and formation dynamics of the f0(980) in relativistic nuclear collisions. Published measurements in high-multiplicity p+Pb collisions at √(sNN)=8.16~TeV exhibit broad scaling closure under a single-meson response construction, with a small effective final-state response, ζf0≃0.04, whereas a symmetric KK̅ constituent-response construction gives substantially poorer closure. An explicitly molecular KK̅ calculation also exhibits single-meson-like scaling but gives a substantially larger effective final-state response, ζf0≃0.16. Thus, single-meson scaling alone is not a unique structural discriminator. The combined response construction and ζf0 constraints characterize the measured f0(980) by a single-meson-like anisotropy response with weak final-state sensitivity, distinctly different from the molecular benchmark. These results establish anisotropy-response scaling as a new experimental probe of f0(980) formation dynamics and motivate systematic tests across collision systems and beam energies.
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BibTeX
@misc{lacey2026constraining,
title = {{Constraining the $f_0(980)$ Structure and Formation Dynamics via Anisotropy-Response Scaling}},
author = {Roy A. Lacey},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.17765},
eprint = {2609.17765},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.17765},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Constraining the f_0(980) Structure and Formation Dynamics via Anisotropy-Response Scaling
AU - Roy A. Lacey
PY - 2026
DA - 2026/09/15
PB - arXiv
DO - 10.48550/arxiv.2609.17765
UR - https://arxiv.org/abs/2609.17765
AB - A species-resolved anisotropy-response scaling framework is used to investigate the structure and formation dynamics of the f_0(980) in relativistic nuclear collisions. Published measurements in high-multiplicity p+Pb collisions at √(s_NN)=8.16~TeV exhibit broad scaling closure under a single-meson response construction, with a small effective final-state response, ζ_f_0≃0.04, whereas a symmetric KK̅ constituent-response construction gives substantially poorer closure. An explicitly molecular KK̅ calculation also exhibits single-meson-like scaling but gives a substantially larger effective final-state response, ζ_f_0≃0.16. Thus, single-meson scaling alone is not a unique structural discriminator. The combined response construction and ζ_f_0 constraints characterize the measured f_0(980) by a single-meson-like anisotropy response with weak final-state sensitivity, distinctly different from the molecular benchmark. These results establish anisotropy-response scaling as a new experimental probe of f_0(980) formation dynamics and motivate systematic tests across collision systems and beam energies.
ER -