Bulletin of the American Physical Society
2021 Fall Meeting of the APS Division of Nuclear Physics
Volume 66, Number 8
Monday–Thursday, October 11–14, 2021; Virtual; Eastern Daylight Time
Session MA: Award Ceremony |
Hide Abstracts |
Chair: Senta Victoria Greene, Vanderbilt Room: Ballroom B |
Wednesday, October 13, 2021 4:00PM - 4:36PM |
MA.00001: Freedman Awardee: Bringing Darkness to Light: Searching for New Physics with Low Energy Techniques Invited Speaker: Danielle H Speller Among the most prominent questions in modern physics are those addressing the nature and origin of the neutrino masses and the identification of invisible or ``dark matter’’ in the universe. These questions, which involve some of the most fundamental aspects of matter and its interactions, often have implications for the development of the cosmos at the largest scales. Searches for new particles that could comprise the dark matter, and for undiscovered processes such as neutrinoless double-beta decay, often rely on interactions with--and transformations of—nuclei in highly sensitive detectors, or on precision measurements of nuclear properties that reveal unexpected results. This often requires the detection of tiny recoils, transitions, or other signals that are extremely difficult to detect. |
Wednesday, October 13, 2021 4:36PM - 5:12PM |
MA.00002: Dissertation Award in Nuclear Physics Talk: Constraining the r-process with Observation and Theory Invited Speaker: Erika M Holmbeck The astrophysical origins of the heaviest elements found both inside and outside the Solar System are unknown, though neutron star mergers (NSMs) have been observationally confirmed as one such cosmic factory. As we are still early in the era of direct NSM detections and multimessenger follow-up, these invaluable data for which to study the rapid neutron-capture (r-) process are currently sparse. In lieu of direct observables, we can invoke an indirect source of data: metal-poor stars. Long after merger, metal-poor stars can host in their atmospheres signatures of the historical explosive events that produced the heavy elements. Like unique fingerprints, the elemental patterns in stellar spectra unveil distinct conditions under which the elements were synthesized. This talk will discuss how my thesis work uses actinide measurements in metal-poor stars to test the conditions of the r-process occurring in NSM sites. By combining stellar actinide measurements with modeling of the astrophysical events that could have produced them, I place new constraints on the r-process site and nuclear physics far from stability. This work demonstrates a unique and adaptable route by which the elemental signatures of metal-poor stars can help understand the astrophysics and nuclear physics of the r-process. |
Wednesday, October 13, 2021 5:12PM - 5:48PM |
MA.00003: Mentoring Awardee: Mentoring in the Helium Mines Invited Speaker: R G Hamish H Robertson Anyone who has benefited as much as I have from outstanding mentors will feel |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700