GPPU Seminar

Date

15:00-17:00, April 13th, 2018

Place

Room N204, Science Complex C (H-04) map

Abstract

A primary goal of nuclear physics is to explore and understand the behavior of many-body systems bound by the strong interaction and the mechanisms that builds all form of nuclear matter observed in the universe today, from few-body nuclei to nuclear matter in astronomical scale, such as neutron stars. Although the fundamental particles at the level of hadrons and baryons and the level of quarks and gluons are relatively well understood, the exact interaction that gives rise to different properties and formations of matter still remains largely unknown. Understanding the exact baryonic interaction that builds variety of forms of baryonic many-body systems is one of the essential tasks in the over mission of nuclear physics.

To fully understand the strong interactions within the frame work of standard model and SU(3) symmetry, it is essential to study the baryonic interactions beyond the nucleonic (NN) interactions. Thus, study hyperonic (YN and YY) interactions (between baryons with strangeness) are essential toward fully understanding of baryonic interactions with all flavors. Due to technical limitation, understanding of YN and YY interactions is still limited in contrast to much better known nucleonic (NN) interactions.

Λ is the lightest baryon with strangeness in the hyperon family. Its novel characters permit investigation of ΛN interaction through multiple ways, although still technically challenging. At Thomas Jefferson National Accelerator Facility (JLab), there is a wellestablished program that studies the ΛN interaction with difference experimental technique. In this lecture, the spectroscopy experiments on Λ-hypernuclei and the Λnn three-body resonance will be presented.

Point

GSP 1