Measurement of hard double-parton interactions in W→lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector
| Data(s) |
2013
|
|---|---|
| Resumo |
The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of root 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(DP)((D)), has been measured through the p(T) balance between the two jets and amounts to f(DP)((D)) = 0.08 +/- 0.01 (stat.) +/- 0.02 (sys.) for jets with transverse momentum p(T) > 20 GeV and rapidity vertical bar y vertical bar < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of sigma(eff) = 15 +/- 3 (stat.)(-3)(+5) (sys.) mb. |
| Formato |
application/pdf application/pdf |
| Identificador |
http://boris.unibe.ch/58454/1/1301.6872.pdf http://boris.unibe.ch/58454/7/1367-2630_15_3_033038.pdf ATLAS, Collaboration; Agustoni, Marco; Ancu, Lucian; Battaglia, Andreas; Beck, Hans Peter; Borer, Claudia; Cervelli, Alberto; Ereditato, Antonio; Gallo, Valentina; Haug, Sigve; Kabana, Sonja; Kruker, Tobias; Marti, Lukas; Pretzl, Klaus-Peter; Schneider, Basil; Sciacca, Gianfranco; Weber, Michael (2013). Measurement of hard double-parton interactions in W→lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector. New journal of physics, 15(3), 033038. Institute of Physics Publishing IOP 10.1088/1367-2630/15/3/033038 <http://dx.doi.org/10.1088/1367-2630/15/3/033038> doi:10.7892/boris.58454 info:doi:10.1088/1367-2630/15/3/033038 urn:issn:1367-2630 |
| Idioma(s) |
eng |
| Publicador |
Institute of Physics Publishing IOP |
| Relação |
http://boris.unibe.ch/58454/ |
| Direitos |
info:eu-repo/semantics/openAccess info:eu-repo/semantics/openAccess |
| Fonte |
ATLAS, Collaboration; Agustoni, Marco; Ancu, Lucian; Battaglia, Andreas; Beck, Hans Peter; Borer, Claudia; Cervelli, Alberto; Ereditato, Antonio; Gallo, Valentina; Haug, Sigve; Kabana, Sonja; Kruker, Tobias; Marti, Lukas; Pretzl, Klaus-Peter; Schneider, Basil; Sciacca, Gianfranco; Weber, Michael (2013). Measurement of hard double-parton interactions in W→lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector. New journal of physics, 15(3), 033038. Institute of Physics Publishing IOP 10.1088/1367-2630/15/3/033038 <http://dx.doi.org/10.1088/1367-2630/15/3/033038> |
| Palavras-Chave | #530 Physics |
| Tipo |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed |
