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Exploring inelasticity in the S-matrix Bootstrap

delete2023-11-01
delete4
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OA
AI
A
António Antunes *
M
Miguel S. Costa
J
José A. Pereira
DOI:10.1016/j.physletb.2023.138225delete
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摘要

摘要

En 中文
The modern S-Matrix Bootstrap provides non-perturbative bounds on low-energy aspects of scattering amplitudes, leveraging the constraints of unitarity, analyticity and crossing. Typically, the solutions saturating such bounds also saturate the unitarity constraint as much as possible, meaning that they are almost exclusively elastic. This is expected to be unphysical in d > 2 because of Aks' theorem. We explore this issue by adding inelasticity as an additional input, both using a primal approach in general dimensions which extends the usual ansatz, and establishing a dual formulation in the 2d case. We then measure the effects on the low-energy observables where we observe stronger bounds than in the standard setup.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.
Keyword:
SCATTERING
FIELD

期刊

Physics Letters B 封面图
Physics Letters B
IF:
4.5
论文数:
3.2W
被引数:
7.3W

机构

U
Universidade do Porto
学者数:
3.0W
论文数: 2.9W
被引数: 34
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