Observation of Λc+ →n KS0 π+


Creative Commons License

Ablikim M., Achasov M., Ahmed S., Ai X., Albayrak O., Albrecht M., ...Daha Fazla

Physical Review Letters, cilt.118, sa.11, 2017 (SCI-Expanded, Scopus) identifier identifier identifier

Özet

We report the first direct measurement of decays of the Λc+ baryon involving the neutron. The analysis is performed using 567 pb-1 of e+e- collision data collected at s=4.599 GeV with the BESIII detector at the BEPCII collider. We observe the decay Λc+→nKS0π+ and measure the absolute branching fraction to be B(Λc+→nKS0π+)=[1.82±0.23(stat)±0.11(syst)]%. A comparison to B[Λc+→p(K̄π)0] provides an important test of isospin symmetry and final state interactions.