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(Seminar) Brunnian neutron cluster
2018-04-11  【 】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

 Chinese Academy of Sciences

Seminar

Title

题目

Brunnian neutron cluster

Speaker

报告人

Dr. Johannes Kirscher

Affiliation

所在单位

The City College of New York

Date

日期

2018年4月11日(周三)上午10:00

Venue

地点

Conference Hall 322, ITP/理论物理所322报告厅

Abstract

摘要

Nuclei, composed entirely of neutrons, are an unsolved problem for theory and experiment. I will present a conjecture about the existence of such a bound, pure neutron core whose characteristic is the absence of any bound substructure -- removal of an arbitrary number of neutrons from this core leads to the disintegration of the object in single, free neutrons. As such they present a generalization of the so-called Borromean structure as an emergent property of the nuclear interaction in helium-6. The conjecture is motivated, in part, by QCD simulations which find a bound di-neutron if the quark masses are detuned to larger-than-physical values. I will thus present the implications from the mechanism responsible for the multi-neutron bound state for the search for these objects in QCD simulations.

Contact person

所内联系人

郭奉坤

 

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