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https://hdl.handle.net/10316/109756
Título: | Measurement of hard double-parton interactions in W(→ lν) + 2-jet events at √s = 7 TeV with the ATLAS detector | Autor: | Carvalho, J. Fiolhais, M. C. N. Oliveira, M. Wolters, H. ATLAS Collaboration |
Data: | 2013 | Editora: | Institute of Physics Publishing | Título da revista, periódico, livro ou evento: | New Journal of Physics | Volume: | 15 | Número: | 3 | Resumo: | The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of √ s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb-1, collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f(D) DP, has been measured through the pT balance between the two jets and amounts to f(D) DP = 0.08 ±0.01 (stat.)±0.02 (sys.) for jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of σeff = 15 ± 3 (stat.) +5 -3 (sys.) mb. | URI: | https://hdl.handle.net/10316/109756 | DOI: | 10.1088/1367-2630/15/3/033038 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Measurement of hard double-parton interactions in W(→ lν) + 2-jet events at √s = 7 TeV with the ATLAS detector.pdf | 827.59 kB | Adobe PDF | Ver/Abrir |
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