Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10316/106930
Título: | Search for excited electrons singly produced in proton–proton collisions at √s=13Te with the ATLAS experiment at the LHC | Autor: | Santos, S. P. Amor dos Fiolhais, M. C. N. Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Data: | 2019 | Editora: | Springer Nature | Título da revista, periódico, livro ou evento: | European Physical Journal C | Volume: | 79 | Número: | 9 | Resumo: | A search for excited electrons produced in pp collisions at s = 13 Te via a contact interaction qq¯ → ee∗ is presented. The search uses 36.1 fb- 1 of data collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider. Decays of the excited electron into an electron and a pair of quarks (eqq¯) are targeted in final states with two electrons and two hadronic jets, and decays via a gauge interaction into a neutrino and a W boson (νW) are probed in final states with an electron, missing transverse momentum, and a large-radius jet consistent with a hadronically decaying W boson. No significant excess is observed over the expected backgrounds. Upper limits are calculated for the pp→ ee∗→ eeqq¯ and pp→ ee∗→ eνW production cross sections as a function of the excited electron mass me∗ at 95% confidence level. The limits are translated into lower bounds on the compositeness scale parameter Λ of the model as a function of me∗. For me∗<0.5 Te, the lower bound for Λ is 11 Te. In the special case of me∗=Λ, the values of me∗<4.8 Te are excluded. The presented limits on Λ are more stringent than those obtained in previous searches. | URI: | https://hdl.handle.net/10316/106930 | DOI: | 10.1140/epjc/s10052-019-7295-1 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Search-for-excited-electrons-singly-produced-in-protonproton-collisions-at-s13Te-with-the-ATLAS-experiment-at-the-LHCEuropean-Physical-Journal-C.pdf | 1.48 MB | Adobe PDF | Ver/Abrir |
Citações SCOPUSTM
9
Visto em 30/set/2024
Citações WEB OF SCIENCETM
10
Visto em 2/set/2024
Visualizações de página
97
Visto em 24/set/2024
Downloads
79
Visto em 24/set/2024
Google ScholarTM
Verificar
Altmetric
Altmetric
Este registo está protegido por Licença Creative Commons