Professor Dr. HARVEY B. MEYER

PRISMA Professorship for Theoretical Particle Physics

Harvey Meyer was appointed Tenured Professor for Theoretical ParticlePhysics at the Cluster of Excellence PRISMA, Department of Physics,Mathematics and Computer Sciences of the Johannes Gutenberg Universityin Mainz in April 2014. His research area is strong interaction physics,with an emphasis on hadronic contributions to low-energy precision observables and on the properties of strongly interacting matter a tnon-zero temperature and density, making use of large-scale lattice QCD simulations.

In order to discover physics beyond the Standard Model, some experiments are carried out at the highest energies, others aim at the highest precision. In that case, it is essential to bring the effects of strong interaction physics under control, which requires input from theory. Examples of such precision observables are the anomalous magnetic moment of the muon and form factors of the nucleon. With this line of research Harvey Meyer contributes to PRISMA's research area C "Structure of Matter".

The properties of strongly interacting matter are also fascinating in their own right. In a hydrogen atom, the electron starts unbinding from the proton at about 150'000 degrees Celsius. The core of the Sun,where nuclear fusion takes place, is about 100 times hotter. To "melt" a proton into quarks and gluons, roughly 100'000 times the core temperature of the Sun is needed. Such a high temperature was only present in the Universe in the first few microseconds after the Big Bang. Nonetheless the properties of hot quark matter had an influence on the subsequent evolution of the Universe.

Professor Meyer has significantly contributed to the understanding of the properties of hot quark matter. The latter can be characterizedlargely by the same concepts and methods used to study the properties of ordinary gases, liquids and solids. Due to its quantum andrelativistic nature however, the properties of hot quark matter do not correspond completely to either of these three categories. Instead it is a strongly coupled "plasma". Since the system is strongly coupled, Professor Meyer has used non-perturbative Monte-Carlo simulations to quantify these properties. He compares the results of such calculations to experimental studies of the quark-gluon plasma. In these experiments at particle colliders (RHIC, LHC, and in the future FAIR) the enormous temperature is achieved very briefly by smashing two heavy nuclei together at high energies (typically, gold or lead). Fortunately the reactions appear to be so fast that the system has time to equilibrate to a plasma before falling apart. 

 

Scientific career

2014
Appointment Professor for theoretical particle physics, Cluster of Excellence PRISMA, Department of Physics, Mathematics and Computer Sciences, Johannes Gutenberg-University Mainz

2010

Junior Professor at the Johannes Gutenberg University, Mainz

2009
Fellow in the Theoretical Physics Division of CERN

2008
Research Scientist at the Massachusetts Institute of Technology (M.I.T.), Cambridge, USA

2006
Postdoctoral research position at M.I.T.

2004
Postdoctoral research position at DESY, Zeuthen, Germany

2001-2004
D.Phil. in Theoretical Physics, University of Oxford, UK

1996-2001
Diplome de Physique, Lausanne University, Switzerland

Main teaching and research topics

  • Lattice field theory, computational physics
  • QCD phase diagram, thermal field theory
  • Hadron structure, nucleon spin decomposition 

Publications

Chiral dynamics in the low-temperature phase of QCD
By Bastian B. Brandt, Anthony Francis, Harvey B. Meyer, Daniel Robaina.
arXiv:1406.5602 [hep-lat], Phys.Rev. D90 (2014) 054509.

A relation between screening masses and real-time rates
By B.B. Brandt, A. Francis, M. Laine, H.B. Meyer.
arXiv:1404.2404 [hep-ph], JHEP 1405 (2014) 117.

A new representation of the Adler function for lattice QCD
By Anthony Francis, Benjamin Jaeger, Harvey B. Meyer, Hartmut Wittig.
arXiv:1306.2532 [hep-lat], Phys.Rev. D88 (2013) 054502.

Implications of Poincare symmetry for thermal field theories in finite-volume
By Leonardo Giusti, Harvey B. Meyer.
arXiv:1211.6669 [hep-lat], JHEP 1301 (2013) 140.

The nucleon axial charge from lattice QCD with controlled errors
By S. Capitani, M. Della Morte, G. von Hippel, B. Jager, A. Juttner, B. Knippschild, H.B. Meyer, H. Wittig.
arXiv:1205.0180 [hep-lat], Phys.Rev. D86 (2012) 074502.

Lattice QCD and the Timelike Pion Form Factor
By Harvey B. Meyer.
arXiv:1105.1892 [hep-lat], Phys.Rev.Lett. 107 (2011) 072002.

Transport Properties of the Quark-Gluon Plasma: A Lattice QCD Perspective
By Harvey B. Meyer.
arXiv:1104.3708 [hep-lat], Eur.Phys.J. A47 (2011) 86.