In:
EPJ Web of Conferences, EDP Sciences, Vol. 271 ( 2022), p. 02002-
Abstract:
Missing-mass spectroscopy with the 3 H( e , e′K + ) reaction was carried out at Jefferson Lab’s (JLab) Hall A in Oct–Nov, 2018. The differential cross section for the 3 H( γ ∗ , K + )Λ nn was deduced at ω = Ee − E e′ = 2.102 GeV and at the forward K + -scattering angle (0 ° ≤ θ γ ∗ K ≤ 5 ° ) in the laboratory frame. Given typical predicted energies and decay widths, which are ( B Λ , Γ) = (−0.25, 0.8) and (−0.55, 4.7) MeV, the cross sections were found to be 11.2 ± 4.8(stat.) +4.1 −2.1 (sys.) and 18.1 ± 6.8(stat.) +4.2 −2.9 (sys.) nb/sr, respectively. The obtained result would impose a constraint for interaction models particularly between Λ and neutron by comparing to theoretical calculations.
Type of Medium:
Online Resource
ISSN:
2100-014X
DOI:
10.1051/epjconf/202227102002
Language:
English
Publisher:
EDP Sciences
Publication Date:
2022
detail.hit.zdb_id:
2595425-8
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