STI Publications - View Publication Form #16560
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Publication Information
| Title | The X17 boson and the 3H(p,e+e-)4He and 3He(n,e+e-)4He processes: a theoretical analysis | ||||
| Abstract | The present work deals with e -e production in the four-nucleon system. We first analyze the process as a purely electromagnetic one in the context of a state-of-the-art approach to nuclear strong-interaction dynamics and nuclear electromagnetic currents, that is derived from chiral effec- tive field theory (?EFT). Next, we examine how the exchange of a hypothetical low-mass boson would impact the cross section for such a process. We consider several possibilities, that this bo- son is either a scalar, pseudoscalar, vector, or axial particle. The ab initio calculations use exact hyperspherical-harmonics methods to describe the bound state and low-energy spectrum of the A = 4 continuum, and fully account for initial state interaction effects in the 3 + 1 clusters. While electromagnetic interactions are treated to high orders in the chiral expansion, the interactions of the hypothetical boson with nucleons are modeled in leading-order ?EFT (albeit, in some instances, selected subleading | ||||
| Author(s) | Michele Viviani, E. Filandri, Luca Girlanda, C. Gustavino, Alejandro Kievsky, Laura Marcucci, Rocco Schiavilla | ||||
| Publication Date | January 2022 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review C |
| Refereed | Yes |
| Volume | 105 |
| Issue | |
| Page(s) | 014001 |
Attachments/Datasets/DOI Link
| Document(s) |
x17-paper1.pdf
(STI Document)
2104.07808.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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