Comment on "Sequential Single-Pion Production Explaining the Dibaryon "$d^*(2380)$" Peak"

TY - UNPB

T1 - Comment on "Sequential Single-Pion Production Explaining the Dibaryon "$d^*(2380)$" Peak"

AU - Bashkanov, M.

AU - Clement, H.

AU - Skorodko, T.

N1 - Comment on arXiv:2102.05575

PY - 2021/6/1

Y1 - 2021/6/1

N2 - In arxiv: 2102.05575 a two-step process $pn \to (pp) \pi^- \to (\Delta N) \pi^- \to (d \pi^+) \pi^-$ was calculated by using experimental total cross sections for the single-pion production processes $pn \to pp \pi^-(I=0)$ and $pp \to d \pi^+$. As a result the authors obtain a resonance-like structure for the total $pn \to d\pi^+\pi^-$ cross section of about the right size and width of the observed $d^*(2380)$ peak at an energy about 40 MeV below the $d^*(2380)$ mass. We object both the results of the sequential process calculation and its presentation as an alternative to the dibaryon interpretation.

AB - In arxiv: 2102.05575 a two-step process $pn \to (pp) \pi^- \to (\Delta N) \pi^- \to (d \pi^+) \pi^-$ was calculated by using experimental total cross sections for the single-pion production processes $pn \to pp \pi^-(I=0)$ and $pp \to d \pi^+$. As a result the authors obtain a resonance-like structure for the total $pn \to d\pi^+\pi^-$ cross section of about the right size and width of the observed $d^*(2380)$ peak at an energy about 40 MeV below the $d^*(2380)$ mass. We object both the results of the sequential process calculation and its presentation as an alternative to the dibaryon interpretation.

KW - nucl-th

M3 - Preprint

BT - Comment on "Sequential Single-Pion Production Explaining the Dibaryon "$d^*(2380)$" Peak"

ER -