김태정
2016-07-26T04:26:19Z
2016-07-26T04:26:19Z
2015-02
PHYSICAL REVIEW LETTERS, v. 114, NO 6, Page. 1-10
0031-9007
1079-7114
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.061801
http://hdl.handle.net/20.500.11754/22216
A search for new long-lived particles decaying to leptons is presented using proton-proton collisions produced by the LHC at root s = 8 TeV. Data used for the analysis were collected by the CMS detector and correspond to an integrated luminosity of 19.7 fb(-1). Events are selected with an electron and muon with opposite charges that both have transverse impact parameter values between 0.02 and 2 cm. The search has been designed to be sensitive to a wide range of models with nonprompt e-mu final states. Limits are set on the "displaced supersymmetry" model, with pair production of top squarks decaying into an e-mu final state via R-parity-violating interactions. The results are the most restrictive to date on this model, with the most stringent limit being obtained for a top squark lifetime corresponding to c tau = 2 cm, excluding masses below 790 GeV at 95% confidence level.
BMWFW FWF (Austria) FNRS FWO (Belgium) CNPq (Brazil) CAPES (Brazil) FAPERJ (Brazil) FAPESP (Brazil) MES (Bulgaria) CERN CAS (China) MoST (China) NSFC (China)COLCIENCIAS (Colombia)
en
AMER PHYSICAL SOC
PROTON-PROTON COLLISIONS
OF-MASS ENERGIES
ROOT-S=7 TEV
ATLAS DETECTOR
PP COLLISIONS
E(+)E(-) COLLISIONS
BREAKING TOPOLOGIES
HEAVY-PARTICLES
VERTICES
Search for Displaced Supersymmetry in Events with an Electron and a Muon with Large Impact Parameters
Article
6
114
10.1103/PhysRevLett.114.061801
1-10
PHYSICAL REVIEW LETTERS
김태정
KIM, T.J.
Khachatryan, V.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Bergauer, T.
Dragicevic, M.
Eroe, J.
Friedl, M.
Fruehwirth, R.
2015001420
S
COLLEGE OF NATURAL SCIENCES[S]
DEPARTMENT OF PHYSICS
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