Bulletin of the American Physical Society
54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 68, Number 7
Monday–Friday, June 5–9, 2023; Spokane, Washington
Session Q06: Collisions in Atomic and Molecular Systems
8:00 AM–9:36 AM,
Thursday, June 8, 2023
Room: 206 A
Chair: Allison Harris, Illinois State University
Abstract: Q06.00006 : Radiative Double-Electron Capture (RDEC) by single-layer graphene incident with F9,8+ ions**
9:00 AM–9:12 AM
Presenter:
Khushi Bhatt
(Argonne National Laboratory)
Authors:
Khushi Bhatt
(Argonne National Laboratory)
David La Mantia
(Clemson University)
Shuvo Dutta
(Western Michigan University)
Tyler D Ulrich
(Western Michigan Univerity)
Uthpalawanna Abesekera
(Western Michigan University)
Merlin J Hall
(Western Michigan University)
Hansaka S Weerarathne
(Western Michigan University)
John A Tanis
(Western Michigan University)
Asghar Kayani
(Western Michigan University)
In the present work, the RDEC measurements have been repeated with single-layer graphene as well as targets that had no graphene on them. A tentative cross section can be calculated for the F9+ projectile, and the differential value at 90° is 1.3 b, corresponding to a total cross section (assuming isotropy) of 11 b. The value for F9+ incident on graphene reported here are more in line with earlier values found for the carbon target and are larger by a factor of about four than for the gas targets. Given the thickness of the target, these values appear reasonable.
[1] D. S. La Mantia et al., Phys. Rev. Lett. 124, 133401 (2020)
[2] D. S. La Mantia, P.N.S. Kumara, C.P. McCoy, J.A. Tanis, Phys. Rev. A 102, 060801(R) (2020)
[3] D. S. La Mantia, A. Kayani, K. Bhatt and J. A. Tanis, Atoms 11, 6 (2023)
**Supported in part by NSF grant no.1707467
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