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Author Archives: Dr Anselm Vossen, Ph.D.

Group work on ML will be presented at ML4EIC workshop

Matthew McEneaney and Connor Pecar will present their work using ML for event tagging and kinematic reconstruction at CLAS and the EIC respectively at the upcoming ML4EIC workshop.

Group description and thesis topics

As this page has not been kept up to date, but people interested in thesis work are contacting us. Therefore I thought it might be useful to share a presentation about our group I gave to the incoming Duke graduate students this year.

Here is the link.

Of course, please contact me for any additional questions.

New review on transverse spin physics

Happy to announce our comprehensive review on transverse spin physics in semi-inclusive processes:


New publication in PRD: Azimuthal asymmetries of back-to-back π±−(π0, η, π±) pairs in e+e− annihilation

journal reference:

Phys. Rev. D 100, 092008

Welcome Frank Meier

Frank Meier started as a postdoctoral research associate in our group in October. His research focuses on flavor physics at the Belle II experiment.

He brings rich experience from his previous experience at the University of Sydney and he also serves as the analysis tools convener for the Belle II experiment.

Frank Meier

First observation of the the Collins effect for neutral pions and eta mesons submitted for publication

This paper is based on the thesis of  Hairong Li

From the abstract:

This work reports the first observation of azimuthal asymmetries around the thrust axis in

Workshop picture FF2019

Thanks for a successful workshop!

Fragmentation Function Workshop at Duke

Our group is organizing an international workshop on hadronization phenomena at Duke, March 14-16, 2019.

All interested are welcome to attend:


New Postdoc Christopher Dilks

Chris explored the spin structure of the proton in p+p collisions at RHIC and is now using novel probes to study quark-gluon correlations with the CLAS12 detector

First observation of Lambda polarization in e+e- published in PRL