@Article{Molina_etal2023,
author="Molina, R.
and Ikeno, N.
and Oset, E.",
title="Sequential single pion production explaining the dibaryon {\textquoteleft}{\textquoteleft}d*(2380){\textquoteright}{\textquoteright} peak",
journal="Chinese Physics C",
year="2023",
publisher="IOP Publishing Ltd",
volume="47",
number="4",
pages="041001--10pp",
optkeywords="dibaryon; sequential mechanism; explanation",
abstract="In this study, we investigate the two step sequential one pion production mechanism, that is, np(I=0)->pi(-)pp followed by the fusion reaction pp ->pi(+)d, to describe the np ->pi(+)pi(-)d reaction with in state I = 0 . In this reaction, a narrow peak identified with a {\textquoteleft}{\textquoteleft} d(2380) {\textquoteright}{\textquoteright} dibaryon has been previously observed. We discover that the second reaction step pp ->pi(+)d is driven by a triangle singularity that determines the position of the peak of the reaction and the high strength of the cross section. The combined cross section of these two mechanisms produces a narrow peak with a position, width, and strength, that are compatible with experimental observations within the applied approximations made. This novel interpretation of the peak accomplished without invoking a dibaryon explains why this peak has remained undetected in other reactions.",
optnote="WOS:000940915300001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5485), last updated on Thu, 16 Mar 2023 10:58:09 +0000",
issn="1674-1137",
doi="10.1088/1674-1137/acb0b7",
opturl="https://arxiv.org/abs/2102.05575",
opturl="https://doi.org/10.1088/1674-1137/acb0b7",
language="English"
}