Research Interests

• Physics of the strong interaction
• Phenomenology of hard lepton- and hadron-induced scattering processes
• QCD factorization
• Higher twist effects
• Parton correlation functions and their universality properties
• Quark- and gluon-structure of hadrons
• Spin structure of the nucleon
• Multi-dimensional imaging of strongly interacting systems

Key Publications

Towards an explanation of transverse single-spin asymmetries in proton-proton collisions: the role of fragmentation in collinear factorization
K. Kanazawa Y. Koike A. Metz, and D. Pitonyak
Phys. Rev. D89, 111501(R) (2014) 

Fragmentation contribution to the transverse single-spin asymmetry in proton-proton collisions
A. Metz and D. Pitonyak
Phys. Lett. B723, 365 (2013)

Distribution of linearly polarized gluons inside a large nucleus
A. Metz and J. Zhou
Phys. Rev. D84, 051503(R) (2011) 

Generalized parton correlation functions for a spin-1/2 hadron
S. Meissner, A. Metz, and M. Schlegel
JHEP 0908, 056 (2009) 

Relations between generalized and transverse momentum dependent parton distributions: model results and beyond
S. Meissner, A. Metz, and K. Goeke
Phys. Rev. D76, 034002 (2007) 

Semi-inclusive deep inelastic scattering at small transverse momentum
A. Bacchetta, M. Diehl, K. Goeke, A. Metz, P. Mulders, and M. Schlegel
JHEP 0702, 093 (2007) 

Universality of soft and collinear factors in hard scattering factorization
J. Collins and A. Metz
Phys. Rev. Lett. 93, 252001 (2004) 

Gluon exchange in spin-dependent fragmentation
A. Metz 
Phys. Lett. B 549, 139 (2002)