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The $a_0(980)$ in the single Cabibbo-suppressed process $\Lambda_c \to \pi^0\eta p$

High Energy Physics - Phenomenology 2023-09-29 v6
Authors: Xue-Chao Feng , Le-Le Wei , Man-Yu Duan , En Wang , De-Min Li
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Abstract

In this work, we have investigated the Cabibbo-suppressed process Λc→π0ηp\Lambda_c \to \pi^0\eta p, by taking into account the intermediate scalar state a0(980)a_0(980), which could be dynamically generated from the SS-wave pseudoscalar-pseudoscalar interaction within the chiral unitary approach. We have calculated the π0η\pi^0\eta invariant mass distribution, and found that there is a significant structure associated to the a0(980)a_0(980). We have also roughly estimated the branching fraction B(Λc→π0ηp)∼10−4\mathcal{B}(\Lambda_c \to \pi^0\eta p) \sim 10^{-4}. We encourage our experimental colleagues to measure the process Λc→π0ηp\Lambda_c \to \pi^0\eta p for searching for the state a0(980)a_0(980) in this reaction.

Keywords

cabibbo-suppressed decay lambda_c a0(980) chiral unitary approach branching fraction scalar meson

Cite

@article{arxiv.2009.08600,
  title  = {The $a_0(980)$ in the single Cabibbo-suppressed process $\Lambda_c \to \pi^0\eta p$},
  author = {Xue-Chao Feng and Le-Le Wei and Man-Yu Duan and En Wang and De-Min Li},
  journal= {arXiv preprint arXiv:2009.08600},
  year   = {2023}
}

Comments

7 pages, 5 figures

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