@Article{Ikeno_etal2021, author="Ikeno, N. and Molina, R. and Oset, E.", title="Triangle singularity mechanism for the pp -> pi(+)d fusion reaction", journal="Physical Review C", year="2021", publisher="Amer Physical Soc", volume="104", number="1", pages="014614--16pp", abstract="We develop a model for the pp -> pi(+)d reaction based on the pp -> Delta(1232)N transition followed by Delta(1232) -> pi N{\textquoteright} decay and posterior fusion of NN{\textquoteright} to give the deuteron. We show that the triangle diagram depicting this process develops a triangle singularity leading to a large cross section of this reaction compared to ordinary fusion reactions. The results of the calculation also show that the process is largely dominated by the pp system in L = 2 and S = 0, which transfers J = 2 to the final pi(+)d system. This feature is shown to be well suited to provide L = 2, S = 1, and J(tot) = 3 for np in the np(I = 0) pi(-)pp reaction followed by the pp -> pi(+)d reaction, which has been proposed recently, as a means of describing the so far assumed dibaryon d* (2380) peak.", optnote="WOS:000677555100001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4908), last updated on Wed, 11 Aug 2021 08:48:18 +0000", issn="2469-9985", doi="10.1103/PhysRevC.104.014614", opturl="https://arxiv.org/abs/2103.01712", opturl="https://doi.org/10.1103/PhysRevC.104.014614", language="English" }