Past Workshops & Meetings

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)

Thursday, December 6, 2018 - 9:00am to Saturday, December 8, 2018 - 1:00pm

LGRT 419B

This workshop will discuss theoretical issues relevant for experimental searches for time reversal violation using slow neutrons. It will present the current and projected reach of a range of experimental approaches and explore the interrelationships of the sensitivity to different types of T violation for these experiments. Experimental strategies discussed will include searches for neutron electric dipole moments, searches for T-odd correlations in neutron decay experiments, searches for T-odd effects using polarized neutron dynamical diffraction in non-centrosymmetric perfect crystals, and T-odd effects in forward transmission in polarized neutron optics.

Organizers:
Vincenzo Cirigliano (Los Alamos National Laboratory)
Chen-Yu Liu (Indiana University)
Pieter Mumm (National Institutes of Standards and Technology)
Bradley Plaster (University of Kentucky)
Michael Snow (Indiana University)

Thursday, November 1, 2018 - 9:00am to Saturday, November 3, 2018 - 1:00pm

LGRT 419B

This workshop will address the following questions: Which experimental approaches provide the most promising probes for new physics via neutron and nuclear beta decays? What theoretical input is required to ensure experiments achieve optimal sensitivity? We hope to provide a road-map for progress on the theory of nuclear decays and the beyond standard model scenarios they test to ensure the maximum impact for ongoing and planned experiments.

A central focus will be the evaluation of the beta energy dependence of decay observables, including the total decay spectrum, and and angular correlations, where new techniques promise, in principle, sensitivity below the 0.1% level, but will also assess the role of ongoing integral angular correlation work in neutrons and nuclei. Through dialog involving theorists and experimentalists, we expect to identify critical theory needs and the resources to address the identified problems. Some attention to important BSM scenarios and how to develop these in light of the results from the LHC will also be addressed. We plan to produce a white paper describing the most promising experiments, the theoretical issues which must be addressed, and the resources required to address them.

Co-organizers:
Vincenzo Cirigliano (Los Alamos National Laboratory)
Alejandro Garcia (University of Washington)
Rajan Gupta (Los Alamos National Laboratory)
Michael Ramsey-Musolf (UMass Amherst)
Albert Young (North Carolina State University)

Thursday, March 29, 2018 - 9:00am to Saturday, March 31, 2018 - 1:00pm

LGRT 419B

Explaining the cosmic matter-antimatter asymmetry requires CP-violation beyond that of the Standard Model. Electric dipole moment searches and measurements of CP-violating observables in heavy quark systems place tight constraints on new CP-violation at and below the weak scale. Next generation EDM searches and heavy flavor probes, together with prospective collider tests, will have considerably greater sensitivities. This workshop will explore how these future probes of CP-violation may provide tests of scenarios proposed to explain the matter-antimatter asymmetry.

Co-organizers:
Stefania Gori (U. Cincinnati)
Kaori Fuyuto (UMass Amherst)
Ann Nelson (U. Washington)
Michael Ramsey-Musolf (UMass Amherst)

Tuesday, October 31, 2017 - 9:00am to Friday, November 3, 2017 - 1:00pm

LGRT 419B

The school is designed to provide theoretical background for Neutrinoless Double Beta Decay (NLDBD) experimentalists. The focus will be on pedagogical lectures, informal discussions with ample time for Q&A, and simple exercises. The goal is to enable participants to obtain an up-to-date picture of the physics of NLDBD, including the interplay with neutrino mass models, nuclear & hadronic structure, and the high energy and cosmic frontiers. Topics will include:

* Basic physics of NLDBD & Majorana neutrinos
* Nuclear & hadronic structure for NLDBD
* Interplay with other searches for physics beyond the Standard Model

The lecturers will be Jon Engel (U. North Carolina), Michael Ramsey-Musolf (UMass), and Petr Vogel (Caltech).

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