Effects of final state interactions on Landau singularities

Sakthivasan, A. S.; Mai, M.; Rusetsky, A.; Döring, M.

doi:10.1007/jhep10(2024)246

Title: Effects of final state interactions on Landau singularities

Journal Article · 30 October 2024 · Journal of High Energy Physics (Online)

DOI: https://doi.org/10.1007/jhep10(2024)246 · OSTI ID:2477284

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Univ. of Bonn (Germany)
Univ. of Bonn (Germany); Univ. of Bern (Switzerland); George Washington Univ., Washington, DC (United States)
Univ. of Bonn (Germany); Tbilisi State University (Georgia)
George Washington Univ., Washington, DC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

In certain kinematic and particle mass configurations, triangle singularities may lead to line-shapes which mimic the effects of resonances. This well-known effect is scrutinized here in the presence of final-state rescattering. The goal is achieved first by utilizing general arguments provided by Landau equations, and second by applying a modern scattering formalism with explicit two- and three-body unitarity.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: Chinese Academy of Sciences (CAS); National Science Foundation (NSF); USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC05-06OR23177; SC0016582; SC0023598

OSTI ID:: 2477284

Report Number(s):: DOE/OR/23177-7700; JLAB-THY--24-4209; arXiv:2407.17969

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 10 Vol. 2024; ISSN 1029-8479

Publisher:: Springer NatureCopyright Statement

Country of Publication:: United States

Language:: English

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