Bulletin of the American Physical Society
APS April Meeting 2023
Volume 68, Number 6
Minneapolis, Minnesota (Apr 15-18)
Virtual (Apr 24-26); Time Zone: Central Time
Session B03: Recent theoretical progress in few-body and multiparticle dynamicsInvited
|
Hide Abstracts |
Sponsoring Units: DNP GFB Chair: Sofia Quaglioni, Lawrence Livermore Natl Lab Room: MG Salon B - 3rd Floor |
Saturday, April 15, 2023 10:45AM - 11:21AM |
B03.00001: Chiral Effective Field Theory's Impact on Advancing Quantum Monte Carlo Methods Invited Speaker: Ingo Tews Nowadays, interactions derived from chiral effective field theory are routinely used to describe nuclear systems ranging from atomic nuclei to the dense matter explored in the core of neutron stars with theoretical uncertainty estimates. In this talk, I will focus on the impact that chiral effective field theory interactions have played in advancing microscopic studies of atomic nuclei and the nuclear matter equation of state using quantum Monte Carlo methods. |
Saturday, April 15, 2023 11:21AM - 11:57AM |
B03.00002: Ab initio prediction of α(d,γ)6Li at Big Bang nucleosynthesis energies Invited Speaker: Chloë Hebborn |
Saturday, April 15, 2023 11:57AM - 12:33PM |
B03.00003: Quantifying uncertainties due to irreducible three-body forces in deuteron-nucleus reactions Invited Speaker: Linda Hlophe Deuteron-induced nuclear reactions can be described within a three-body model consisting of a neutron, proton, and the nucleus interacting through pairwise forces. While Faddeev techniques enable the exact description of the three-body dynamics, their predictive power is limited in part by irreducibe three-body nucleon-nucleon-nucleus forces. Our goal is to use ab initio reaction theory to quantify the impact of the irreducible three-body force on bound state properties and scattering observables for light deuteron-nucleus systems. We adopt the no-core shell model (NCSM) coupled with the resonating group method (RGM) to compute effective nucleon-nucleus interactions and construct a three-body Hamiltonian from the pairwise interactions. We present momentum space Faddeev for deuteron-nucleus systems starting with 2H+4He. The bound state energies and cross sections obtained directly from the NCSM/RGM significantly differ from the Faddeev calculations, owing to the irreducible three-body force. We deduce that the latter arises from two-nucleon nucleons exchange terms in the deuteron-nucleus interaction. |
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