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Search for a light charged Higgs boson decaying to cs¯cs¯ in pp collisions at s√=8s=8 TeV

Title
Search for a light charged Higgs boson decaying to cs¯cs¯ in pp collisions at s√=8s=8 TeV
Author
김태정
Keywords
Supersymmetry; Hadron-Hadron scattering; Higgs physics
Issue Date
2015-12
Publisher
SPRINGER
Citation
JOURNAL OF HIGH ENERGY PHYSICS, v.2015, issue 12, Page. 1-37
Abstract
A search for a light charged Higgs boson, originating from the decay of a top quark and subsequently decaying into a charm quark and a strange antiquark, is presented. The data used in the analysis correspond to an integrated luminosity of 19.7 fb−1 recorded in proton-proton collisions at s√=8s=8 TeV by the CMS experiment at the LHC. The search is performed in the process tt¯→W±bH∓b¯¯¯tt¯→W±bH∓b¯ , where the W boson decays to a lepton (electron or muon) and a neutrino. The decays lead to a final state comprising an isolated lepton, at least four jets and large missing transverse energy. No significant deviation is observed in the data with respect to the standard model predictions, and model-independent upper limits are set on the branching fraction B(t→H+b)B(t→H+b) , ranging from 1.2 to 6.5% for a charged Higgs boson with mass between 90 and 160 GeV, under the assumption that B(H+→cs)=100%B(H+→cs)=100% .
URI
https://link.springer.com/article/10.1007%2FJHEP12%282015%29178http://hdl.handle.net/20.500.11754/29427
ISSN
1029-8479
DOI
10.1007/JHEP12(2015)178
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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