The outlook for Nuclear Theory
School of Physics and Astronomy
University of Manchester
“Nuclear theory in the UK is a
small but first class effort, with
high international visibility ...”
I NTE R NATI O NAL
What is Nuclear Theory
Internationally rather broadly defined: The study of
the theory of those aspects of (sub)nuclear physics
that involve multiple interacting objects…
In UK historically rather narrowly defined (EPSRC
Theoretical Nuclear Physics: UK
Only two University Groups with full-time NP theorists:
Manchester 4 FTE academics [Birse, Bishop, McGovern, Walet]
1+1 PDRA, 1PGR student
Field Theoretic approaches to many-body systems
Effective field theories
Quarks and gluons
Surrey 4 FTE Academics [Al-Khalili, Oi, Stevenson, Tostevin]
1 Advanced Fellow [Zhao], 1 Emeritus [Johnson] 1+1 PDRA, 13 PGR
Nuclear reactions and dynamics
Nuclear dynamics and structure
Edinburgh/Glasgow/Liverpool/....: Lattice QCD
Manchester Particle Theory
Probably rather thin in nuclear areas?
Interface to Astrophysics
Equation(s) of State
There is clear theory interest in one (neutron and
Less theory contribution on second, apart from
through standard nuclear experiment support.
Not as strong as to PP!
NUPECC recommends that It is imperative to:
efforts should be ….
undertaken to strengthen Significantly increase funding
local theory groups in order for nuclear theory which
to guarantee the theory is essential for developing
development needed to the full potential of the
address the challenging programme
basic issues that exist or
may arise from new (NSAC 2002)
Theory needs to be reinforced
RIA TG (defunct)
SciDAC-2 collaboration: UNEDF
NSAC long range plan 2007 under way;
concentrates on facilities, but debates theory:
See next couple of slides
How do NN and NNN interaction emerge from QCD?
How do NNN forces impact structure and reaction properties of
What are the limits of stability?
How does shell structure evolve with neutron number?
How do simple symmetries arise in complex system?
What is the impact of the continuum on nuclear properties?
Can we describe large-amplitude collective motion?
What is the microscopic underpinning of emergent phenomena?
How do nuclei react with each other?
What is the equation of state (EOS) of nuclear and neutron matter?
What can nuclei tell us about other systems?
More effort, less specific targets (two white
RHIC, LHC, EIC: Theory/models for QCD in
Effective field theory
Hadron physics phenomenology
NUPECC Facility for theory: ECTstar in Trento
Will STFC pay UK part?
EU Networks (for experiment and theory)!
Not as coherent for theory as US.
UK effort and future (low energy)
Microscopic description of reactions (Surrey)
(effective) few body systems: Surrey
EFT for few body systems: Manchester
Fully microscopic calculations: Manchester
Large Amplitude Collective Motion: Manchester,
NNN forces: Manchester
Can tick many of the US boxes?!
A little in Manchester,
some in other places (HEP)
Effective Field Theory
Manchester, Sussex, So'ton
Surrey, Oxford, So'ton, Mc/er
Much of the existing work seems already well
aligned with international goals!
Are we concentrating on strengths?
Must start stronger focus on FAIR physics
Collaboration with lattice QCD
Non-equilibrium QCD/Phase transitions
Boundaries with PP theory are fluid
Boundaries with Astrophysics important, but
theory input mainly on nuclear physics relevant
Some integration needed
But substantial strength in core nuclear physics
will help to address key questions
Also, we must support FAIR type physics