| dc.creator | Alconada Verzini, María Josefina | |
| dc.creator | Alonso, Francisco | |
| dc.creator | Arduh, Francisco Anuar | |
| dc.creator | Dova, María Teresa | |
| dc.creator | Monticelli, Fernando Gabriel | |
| dc.creator | Wahlberg, Hernán Pablo | |
| dc.creator | The ATLAS Collaboration | |
| dc.date | 2016-09-01 | |
| dc.date | 2019-07-18T17:19:24Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/78483 | |
| dc.identifier | issn:1029-8479 | |
| dc.description | Searches for new resonances decaying into two photons in the ATLAS experiment at the CERN Large Hadron Collider are described. The analysis is based on proton-proton collision data corresponding to an integrated luminosity of 3.2 fb−1 at s√=13 TeV recorded in 2015. Two searches are performed, one targeted at a spin-2 particle of mass larger than 500 GeV, using Randall-Sundrum graviton states as a benchmark model, and one optimized for a spin-0 particle of mass larger than 200 GeV. Varying both the mass and the decay width, the most significant deviation from the background-only hypothesis is observed at a diphoton invariant mass around 750 GeV with local significances of 3.8 and 3.9 standard deviations in the searches optimized for a spin-2 and spin-0 particle, respectively. The global significances are estimated to be 2.1 standard deviations for both analyses. The consistency between the data collected at 13 TeV and 8 TeV is also evaluated. Limits on the production cross section times branching ratio to two photons for the two resonance types are reported. | |
| dc.description | La lista completa de autores puede verse al final del archivo asociado. | |
| dc.description | Instituto de Física La Plata | |
| dc.format | application/pdf | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
| dc.rights | Creative Commons Attribution 4.0 International (CC BY 4.0) | |
| dc.subject | Física | |
| dc.subject | standard model | |
| dc.subject | hadron-hadron scattering | |
| dc.subject | hard scattering | |
| dc.subject | particle production | |
| dc.subject | resonance production | |
| dc.subject | proton-proton scattering | |
| dc.title | Search for resonances in diphoton events at √s = 13 TeV with the ATLAS detector | |
| dc.type | Articulo | |
| dc.type | Articulo | |
