Welcome! Our mission is to advance research in
theoretical and experimental physics at the interface
of the Energy, Intensity, and Cosmic frontiers.

We seek answers to key open questions about
nature’s fundamental interactions, such as:

Why is there more matter than anti-matter in the Universe?

What additional forces were active during the first moments after the Big Bang?

How are protons and neutrons put together?

We address these and other questions through international
topical workshops; a visiting researcher program;
UMass faculty, staff, and student research
as well as other activities.

News & Announcements

Prospects for Baryon Number Violation by Two Units

Thursday, April 2, 2020 - 9:00am to Saturday, April 4, 2020 - 1:00pm


Proton decay experiments strongly constrain models in which baryon number is violated. Typical models must be associated to very high-energy scales to be viable, making them hard to probe with independent methods. An interesting class of models, which has gained significant attention in recent years, still violate baryon number but only by two units such that the proton remains stable. The last years have seen interesting developments in the associated particle, hadronic, and nuclear theory and the connection to outstanding cosmological problems such as the matter-antimatter asymmetry. In addition, future measurements made by the ESS NNBar Collaboration, DUNE, PNPI Gatchina, and Hyper-Kamiokande in the realm of dinucleon decay and neutron-antineutron transformations have real discovery potential.

In this focused workshop, we wish to bring together practitioners of the various communities, both theoretical and experimental, to discuss what are the challenges and prospects for the detection of baryon number violation in the near future, and what would be the implication of signals or lack thereof.

Joshua Barrow (Fermilab)
Leah Broussard (Oak Ridge National Lab)
Jordy de Vries (UMass Amherst)
Michael Wagman (MIT)

QCD Real-Time Dynamics and Inverse Problems

Thursday, October 8, 2020 - 9:00am to Saturday, October 10, 2020 - 1:00pm


Realizing the full potential of experimental studies of nuclear matter requires a comprehensive understanding of the dynamics of its microscopic constituents, within the theory of quantum chromodynamics (QCD). Lattice QCD calculations have made significant contributions to our understanding of the strong interaction, but little is known from ab initio calculations about the dynamical properties of quarks and gluons. A central challenge for such calculations is the need to solve ill-posed inverse problems. This workshop will bring together practitioners in the field of lattice QCD and other communities working with inverse problems to address recent progress and remaining challenges in the extraction of dynamical properties from both numerical calculations and from experiment.

Martha Constantinou (Temple University)
Christopher Monahan (College of William and Mary/Jefferson Laboratory)
Alexander Rothkopf (Stavanger University)

Upcoming Seminars

ACFI Seminar

Fri, Jan 31, 2020 - 2:15pm

Jeter Hall


ACFI Seminar

Fri, Feb 7, 2020 - 2:15pm

Gabriel Menezes