UNIGE document Scientific Article
previous document  unige:81236  next document
add to browser collection
Title

Search for direct top squark pair production in final states with two tau leptons in pp collisions at √s = 8 TeV with the ATLAS detector

CollaborationWith : Ancu, Lucian Stefan / Bell, William / Benhar Noccioli, Eleonora / Bilbao De Mendizabal, Javier / Calace, Noemi / Clark, Allan Geoffrey / Coccaro, Andrea / Delitzsch, Chris Malena / Della Volpe, Domenico / Ferrere, Didier / Gadomski, Szymon / Golling, Tobias / Gonzalez Sevilla, Sergio / Gramling, Johanna Léna / Guescini, Francesco / Iacobucci, Giuseppe / Katre, Akshay / Mermod, Philippe / Miucci, Antonio / Muenstermann, Daniel / Paolozzi, Lorenzo / Picazio, Attilio / Ristic, Branislav / Schramm, Steven / Tykhonov, Andrii / Vallecorsa, Sofia / Wu, Xin
Published in The European Physical Journal. C, Particles and Fields. 2016, vol. 76, no. 2, p. 81
Collection Open Access - SCOAP3
Abstract A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb -1 of proton–proton collision data at s=8TeV . The data were collected by the ATLAS experiment at the LHC in 2012. Top squark candidates are searched for in events with either two hadronically decaying tau leptons, one hadronically decaying tau and one light lepton, or two light leptons. No significant excess over the Standard Model expectation is found. Exclusion limits at 95% confidence level are set as a function of the top squark and scalar tau masses. Depending on the scalar tau mass, ranging from the 87GeV LEP limit to the top squark mass, lower limits between 490 and 650GeV are placed on the top squark mass within the model considered.
Identifiers
Full text
Structures
Citation
(ISO format)
ATLAS COLLABORATION. Search for direct top squark pair production in final states with two tau leptons in pp collisions at √s = 8 TeV with the ATLAS detector. In: The European Physical Journal. C, Particles and Fields, 2016, vol. 76, n° 2, p. 81. https://archive-ouverte.unige.ch/unige:81236

356 hits

75 downloads

Update

Deposited on : 2016-03-03

Export document
Format :
Citation style :