Welcome!

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

Neutrino-Electron Scattering at Low Energies

Thursday, April 25, 2019 - 9:00am to Saturday, April 27, 2019 - 1:00pm

LGRT 419B

Neutrino-electron interactions at low energies can reveal interesting new physics in the neutrino sector. Electromagnetic neutrino properties have broad implications, casting light on the Majorana vs Dirac question and perhaps suggesting new particles or couplings. We are now entering an exciting era of increased experimental sensitivity to such couplings, as dark matter experiments at the keV scale become dominated by solar neutrinos, and as massive bolometric sensors achieve eV-scale thresholds. The goal of this workshop is to bring together a diverse cross section of interested researchers (theorists, experimentalists, and astrophysicists) to discuss motivations, implications, existing constraints, and future opportunities.

Co-organizers
Shao-Feng Ge (Kavli IPMU & UC Berkeley)
Scott Hertel (UMass Amherst)
Andrea Pocar (UMass Amherst)

Current and Future Status of the First-Row CKM Unitarity

Thursday, May 16, 2019 - 9:00am to Saturday, May 18, 2019 - 1:00pm

LGRT 419B

Tests of the unitarity constraint on the first row of the CKM matrix continue to provide powerful probe of physics beyond the Standard Model. The effectiveness of this probe relies on having sufficiently precise measurements and theoretical, Standard Model computations. This workshop will address the following questions: What is the status of the first-row CKM unitarity constraint? What is the status of radiative and nuclear/hadronic structure-dependent corrections that underly that test? A particular focus will be on arriving at a clear picture of the present level of theoretical uncertainty in extracting the value of V_ud from experiment and on strategies to reduce it. An additional emphasis will fall on obtaining a consensus for present determination of V_us. We will gather the world experts for providing a complete and in-depth review of all crucial theoretical and experimental ingredients.

Co-organizers:
Mikhail Gorshteyn (Mainz University)
John Hardy (Texas A&M University)
Michael Ramsey-Musolf (UMass Amherst & Tsung-Dao Lee Institute, Shanghai Jiao-Tong University)
Chien Yeah Seng (Bonn University)

Upcoming Seminars

Theory Talk

Fri, Mar 22, 2019 - 2:15pm

Jia Zhou

LGRT 419B

ACFI Seminar

Tue, Apr 2, 2019 - 2:30pm

James Unwin

LGRT 419B