Photo of Dr Eddie Paul

Dr Eddie Paul Ph. D., M. InstP, CPhys

Senior Lecturer Physics

    Research

    Research Interest 1

    My research involves the nuclear structure of medium-mass nuclei (A=100-160) at very high spin (angular momentum). Gamma-ray spectroscopic studies of these nuclei are performed using large
    multidetector arrays of hyperpure germanium detectors (e.g. GAMMASPHERE, EXOGAM, JUROGAM)
    at international laboratories in both Europe and the USA.


    A major question is how the nucleus, a finite fermionic or mesoscopic system, generates angular momentum at ultra-high spin? The finite nature of the nucleus leads to the observation of "band termination" when all of the nuclear angular momentum is generated by the single-particle spin of a number of valence particles outside an inert doubly magic closed core. However, spin generation beyond band termination has been the subject of debate and experimental investigation for more than two decades. Very recently we have found evidence for very weakly populated structures extending well beyond band termination, up to spin 65 hbar, in erbium nuclei. These structures are based on strongly deformed "triaxial" nuclear shapes which are formed when extra particles are ripped out of the closed core.


    Other topics of my research include:
    the mechanism and decay out of "superdeformed" band structures; chiral symmetry and anomalous signature inversions in odd-odd nuclei;
    the spectroscopy of maximally deformed, extremely neutron-deficient rare-earth nuclei using
    Radioactive Ion Beams beams at GANIL;
    Recoil-Decay Tagging experiments for light Te, I, Xe and Cs nuclei performed at Jyvaskyla.



    Research Group Membership

    Research Grants

    Nuclear Physics Consolidated Grant

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    October 2017 - March 2022

    Precision Tests of the Nuclear Wavefunction using Exotic Beams

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    October 2007 - September 2009

    Consolidated nuclear physics grant 2011

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    August 2011 - July 2015

    Nuclear Physics Consolidated Grant

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    August 2014 - December 2018

    DSAM Lifetimes of the SD and TSD bands in 154Er at ultra high spin

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    September 2009 - November 2009

    European nuclear structure integrated infrastructure initiative (EURONS).

    EUROPEAN COMMISSION

    January 2005 - December 2008

    Exploring the limits of nuclear existence for heavy proton-rich nuclei

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    December 2009 - May 2013

    Indentification of excited states in the deformed proton emitter La117

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    June 2009 - July 2009

    Nuclear Physics Rolling Grants 2013 (equipment bid)

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    January 2014 - March 2014

    Lifetimes of the TSD candidate bands in 157,158Er at ultra high spin

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    January 2009 - February 2009

    Nuclear Physics Rolling Grant

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    August 2008 - August 2011

    Nuclear structure at the proton drip line and at ultra high spin

    SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)

    October 2007 - September 2009

    Research Collaborations

    Gammasphere

    External: Argonne National Lab

    Experimental equipment

    Ingemar Ragnarsson

    External: Lund Institute of Technology

    Theoretical support

    Nuclear Physics Support Group

    External: Daresbury Laboratory

    Gamma ray spectroscopy at various labs worldwide