Final-state interaction in the process 
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Milstein, A. I.; Salnikov, S. G.

doi:10.1103/physrevd.105.074002

Cited by 7 publications

(2 citation statements)

References 30 publications

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“…However, it should be pointed out that the differences between Belle and BE-SIII are within the experimental uncertainties. Attempts have been made to understand the threshold behaviour of the cross section in terms of vector charmonium resonances [72,73] and final state interactions [74].…”

Section: λ + Cmentioning

confidence: 99%

Production and decay of polarized hyperon-antihyperon pairs*

et al. 2023

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Polarized hyperon-antihyperon pairs shed light on various unresolved puzzles in contemporary physics: How the strong interaction confines quarks into hadrons, how accurately the Standard Model describes microcosmos and even why our universe consists of so much more matter than antimatter. Thanks to their weak, parity violating decays, hyperons reveal their spin properties. This can be exploited e.g. the decomposition of the electromagnetic structure of hyperons, precision tests of flavour symmetry and searches for CP violation. At the BESIII experiment at BEPC-II, Beijing, China, hyperon-antihyperon pairs can be produced in abundance. Recently collected large data samples have triggered the development of new methods that provide unprecedented precision and a plethora of new results have emerged. When applied at future high-intensity facilities like PANDA and STCF, precision physics will be taken to a new level which can contribute to the solution to the aforementioned puzzles. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Section: λ + Cmentioning

confidence: 99%

Production and decay of polarized hyperon-antihyperon pairs*

et al. 2023

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“…As a result, the wave function of the produced pair changes significantly (the so-called final-state interaction). The idea on the final-state interaction as a source of anomalous energy dependence of the cross sections near the thresholds has been expressed in many papers [18][19][20][21][22][23][24][25][26][27][28]. However, the technical approaches used in these papers were different.…”

Section: Introductionmentioning

confidence: 99%

$N\bar{N}$ production in $e^{+}e^{-}$ annihilation near the threshold revisited

Milstein¹,

Salnikov²

2022

Preprint

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Production of pp and nn pairs in e + e − annihilation near the threshold of the process is discussed with account for the new experimental data appeared recently. Since a significant part of these new data was obtained at energies noticeably exceeding the threshold, we also take into account the form factor describing the amplitude of N N pair production at small distances. The effective optical potential, which describes a sharp dependence of the N N production cross sections near the threshold, consists of the central potential for S and D waves and the tensor potential. These potentials differ for the states with isospin I = 0 and I = 1 of N N pair. The optical potential describes well N N scattering phases, the cross sections of pp and nn production in e + e − annihilation near the threshold, the electromagnetic form factors GE and GM for protons and neutrons, as well as the cross sections of the processes e + e − → 6π and e + e − → K + K − π + π − .

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