On a possible origin of a resonance-like structure in the two-photon invariant mass spectrum of the reaction pp->ppgg
| dc.creator | Khrykin, A. S. | |
| dc.creator | Gerasimov, S. B. | |
| dc.date | 2007-10-17 | |
| dc.date.accessioned | 2026-07-07T11:53:39Z | |
| dc.date.available | 2026-07-07T11:53:39Z | |
| dc.description | We show that the resonance-like structure found by the \emph{CELSIUS-WASA Collaboration} in the two-photon invariant mass spectrum of the reaction $pp \to pp γγ$ is rather a signature of the $NN$-decoupled dibaryon resonance $d^\star_1$(1956) that is produced in the radiative process $pp \to γd^\star_1$ and then undergoes radiative decay into two protons $d^\star_1 \to pp γ$. It is found that a contribution of the dibaryon mechanism $pp \to γd^\star_1 \to pp γγ$ of the reaction $pp \to pp γγ$ to the invariant mass spectrum of its photon pairs can reasonably well reproduce the experimentally observed spectrum in the vicinity of the resonance-like structure. | |
| dc.description | Contribution to the Proceeding of the MENU 2007 Conference, 4 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/0710.3331 | |
| dc.identifier | http://arxiv.org/abs/0710.3331 | |
| dc.identifier | ECONFC070910:250,2007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/204615 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | Nuclear Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | On a possible origin of a resonance-like structure in the two-photon invariant mass spectrum of the reaction pp->ppgg | |
| dc.type | text |