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<pre wrap="">Theory Center Seminar
Monday, March 26, 2018
1:00 p.m. (coffee at 12:45 p.m.)
CEBAF Center, Room L102
Johannes Kirscher
The City College of New York
<font size="+1"><b>Brunnian Neutron Cluster</b></font>
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.
The link to attend remotely via BlueJeans is available at
<a class="moz-txt-link-freetext" href="https://www.jlab.org/div_dept/theory/seminars/2018-spring-theory-seminar.html">https://www.jlab.org/div_dept/theory/seminars/2018-spring-theory-seminar.html</a>
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