| Autor: |
Biloshytskyi Volodymyr, Harland-Lang Lucian, Malaescu Bogdan, Pascalutsa Vladimir, Schmieden Kristof, Schott Matthias |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
EPJ Web of Conferences, Vol 274, p 06007 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2100-014X |
| DOI: |
10.1051/epjconf/202227406007 |
| Popis: |
The LHC newly-discovered resonant structures around 7 GeV, such as the X(6900), could be responsible for the observed excess in light-by-light scattering between 5 and 10 GeV. We show that the ATLAS data for light-bylight scattering may indeed be explained by such a state with the γγ branching ratio of order of 10−4. This is much larger than the value inferred by the vectormeson dominance, but agrees quite well with the tetraquark expectation for the nature of this state. Further light-by-light scattering data in this region, obtained during the ongoing Run-3 and future Run-4 of the LHC, are required to pin down these states in γγ channel. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
