Bridging the primordial A=8 divide with Catalyzed Big Bang Nucleosynthesis
| dc.creator | Pospelov, Maxim | |
| dc.date | 2007-12-05 | |
| dc.date.accessioned | 2026-07-07T08:47:24Z | |
| dc.date.available | 2026-07-07T08:47:24Z | |
| dc.description | Catalysis of nuclear reactions by metastable charged particles X^- opens the possibility for primordial production of elements with A>7. We calculate the abundance of ^9Be, where synthesis is mediated by the formation of (^8Be X^-) bound states, finding a dramatic enhancement over the standard BBN prediction: ^9Be/^1H = 10^{-13}\times(Y_X/10^{-5}). Thus observations of ^9Be abundances at low metallicity offers a uniquely sensitive probe of many particle physics models that predict X^-, including variants of supersymmetric models. Comparing the catalytically-enhanced abundances of primordial ^6Li and ^9Be, we find the relation ^9Be/^6Li = (2-5)\times 10^{-3} that holds over a wide range of X^- abundances and lifetimes. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0712.0647 | |
| dc.identifier | http://arxiv.org/abs/0712.0647 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/143585 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.subject | Nuclear Theory | |
| dc.title | Bridging the primordial A=8 divide with Catalyzed Big Bang Nucleosynthesis | |
| dc.type | text |