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<font color="#000099"><b><font color="#3333ff">Physics Seminar<br>
Friday, Aug. 21, 2009<br>
11:00AM<br>
CEBAF Center AUD.<br>
Cookies & Coffee at 10:45AM</font></b><br>
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<b><font color="#cc0000"><font color="#3333ff">"Three Body Model for
Halo Nuclei and the Efimov Effect"</font>
<br>
<br>
Indranil Mazumdar
<br>
<br>
Department of Nuclear & Atomic Physics,
<br>
Tata Institute of Fundamental Research
<br>
Mumbai
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<br>
The discovery of light neutron rich nuclei near the drip line showing
either a pronounced halo of one or two neutrons or a neutron skin of
several neutrons have opened up new vistas in contemporary nuclear
physics. The first part of this talk will be devoted to an
introduction to the discovery of halo nuclei and the global efforts in
this direction. We will then introduce the result of our calculations
using a three-body model to understand the key structural properties of
these nuclei. The 2-neutron halo nuclei are the ideal candidates for
studying the Efimov effect in atomic nuclei. In the second part of the
talk we will present our work to investigate the occurrence of Efimov
states in 2-neutron halo nuclei, like, 14Be, 19B, 20C, 22C. We will
also present the result of our calculations to study the evolution of
the bound Efimov states into resonances with increasing 2-body
(neutron-core) binding energy. Finally, we will tie up the emergence
of the asymmmetric resonances with the Fano phenomenon and discuss its
implication for the possible experimental observation of Efimov states
in the atomic nuclei.
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Upcoming Seminar
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Aug. 28 Kaz Nakahara (Univ. of Maryland)<br>
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