Observation of $\Lambda^+_{c}\to nK^0_S\pi^+$

We report the first direct measurement of decays of the $\Lambda^+_c$ baryon involving the neutron. The analysis is performed using 567 pb$^{-1}$ of $e^+e^-$ collision data collected at $\sqrt{s}=4.599$ GeV with the BESIII detector at the BEPCII collider. We observe the decay $\Lambda^+_{c}\rightarrow n K^0_S\pi^+$ and measure the absolute branching fraction to be $\mathcal{B}({\Lambda^+_{c}\rightarrow n K^0_S\pi^+})=(1.82\pm0.23({\rm stat})\pm0.11({\rm syst}))\%$. A comparison to $\mathcal{B}({\Lambda^+_{c}\rightarrow p(\bar{K}\pi)^0})$ provides an important test of isospin symmetry and final state interactions.


Publication Date:
Mar 20 2017
Date Submitted:
Jul 13 2018
Pagination:
112001
ISSN:
1079-7114
Citation:
Physical Review Letters
118
11
Note:
A freely accessible, full text version is available using the link(s) in External Resources.
External Resources:




 Record created 2018-07-13, last modified 2019-04-03


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)