Bulletin of the American Physical Society
Fall 2022 Meeting of the APS Division of Nuclear Physics
Volume 67, Number 17
Thursday–Sunday, October 27–30, 2022; Time Zone: Central Daylight Time, USA; New Orleans, Louisiana
Session LH: Nuclear Reactions: Heavy-Ions/Rare isotope Beams III
2:00 PM–3:48 PM,
Saturday, October 29, 2022
Hyatt Regency Hotel
Room: Celestin H
Chair: Alan McIntosh, Texas A&M University
Abstract: LH.00002 : Experimental Investigation of Suppression Factors in Knockout and (p,2p) Reactions*
2:12 PM–2:24 PM
Presenter:
Axel Frotscher
(Lawrence Berkeley National Laboratory)
Author:
Axel Frotscher
(Lawrence Berkeley National Laboratory)
Collaboration:
NP1812-RIBF170 collaboration
The observed isospin dependence of the reduction factor R is a longstanding challenge to the nuclear physics community. A conclusive explanation is still under active debate, however the discrepancy is expected to either originate from the nuclear structure part or the reaction part of the calculation, or possibly even a mix of both.
The analysis of an experiment at RIKEN, RIBF is presented here. It includes the one-proton removal reaction from 38,48,54Ca beams on a 1g/cm2 C target, as well as the simultaneous (p,2p) and knockout reaction on a 1.229g/cm2 CH2 target utilising the same settings. This setup a direct comparison of the reactions, and reaction calculations, using the same nuclear structure input. The three beams cover the neutron-deficient, stable and neutron-rich side, yielding a trend with isospin for both one-nucleon knockout as well as (p,2p) reactions. The difference of both trends allows an assignment of the isospin dependence to either originate from the nuclear structure part or the reaction mechanism part of the theoretical calculations.
*This work is supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Contract No. DE-AC02-05CH11231
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