High Resolution Spectroscopy of 16N_Lambda by Electroproduction

TL;DR

This study used high-resolution electroproduction spectroscopy at Jefferson Lab to precisely measure the binding energy and energy levels of the hypernucleus 16N_Lambda, improving upon previous measurements.

Contribution

It provides the first high-precision measurement of 16N_Lambda's ground-state binding energy and detailed energy levels, enhancing understanding of hypernuclear structure.

Findings

Ground-state binding energy of 16N_Lambda is 13.76 +/- 0.16 MeV.

Precise energies for Lambda in s and p orbits were determined.

Calibration using water target improved measurement accuracy.

Abstract

An experimental study of the 16O(e,e'K^+)16N_Lambda reaction has been performed at Jefferson Lab. A thin film of falling water was used as a target. This permitted a simultaneous measurement of the p(e,e'K^+)Lambda,Sigma_0 exclusive reactions and a precise calibration of the energy scale. A ground-state binding energy of 13.76 +/- 0.16 MeV was obtained for 16N_Lambda with better precision than previous measurements on the mirror hypernucleus 16O_Lambda. Precise energies have been determined for peaks arising from a Lambda in s and p orbits coupled to the p_{1/2} and p_{3/2} hole states of the 15N core nucleus.