Search for supersymmetry in pp collisions at s=1.96TeV using the trilepton signature for chargino-neutralino production

Search for supersymmetry in pp collisions at s=1.96TeV using the trilepton signature for chargino-neutralino production

We use the three lepton and missing energy trilepton signature to search for chargino-neutralino production with 2.0fb-1 of integrated luminosity collected by the CDF II experiment at the Tevatron pp collider. We expect an excess of approximately 11 supersymmetric events for a choice of parameters o...

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Chi tiết về thư mục
Những tác giả chính: Aaltonen, T, Adelman, J, Akimoto, T, Albrow, MG, Álvarez GonzÁlez, B, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Apresyan, A, Arisawa, T, Artikov, A, Ashmanskas, W, Attal, A, Aurisano, A, Azfar, F, Azzurri, P, Badgett, W, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Bartsch, V, Bauer, G
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2008
Miêu tả
Tóm tắt:We use the three lepton and missing energy trilepton signature to search for chargino-neutralino production with 2.0fb-1 of integrated luminosity collected by the CDF II experiment at the Tevatron pp collider. We expect an excess of approximately 11 supersymmetric events for a choice of parameters of the mSUGRA model, but our observation of 7 events is consistent with the standard model expectation of 6.4 events. We constrain the mSUGRA model of supersymmetry and rule out chargino masses up to 145GeV/c2 for a specific choice of parameters. © 2008 The American Physical Society.

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