Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State

CMS Collaboration; U Akgun; E. A Albayrak; B Bilki; W Clarida; K Dilsiz; F. Duru; J-P Merlo; H Mermerkaya; A Mestvirishvili; A Moeller; J Nachtman; H Ogul; Y Onel; F Ozok; A Penzo; S Sen; P Tan; E Tiras; J Wetzel; T Yetkin; K Yi

doi:10.1103/PhysRevLett.112.171801

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Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State

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Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State

CMS Collaboration, U Akgun, E. A Albayrak, B Bilki, W Clarida, K Dilsiz, F. Duru, J-P Merlo, H Mermerkaya, A Mestvirishvili, …

Physical review letters, Vol.112(17), 171801

2014

DOI: 10.1103/PhysRevLett.112.171801

PMID: 24836237

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Abstract

A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 fb−1 and was collected at √s=8 TeV by the CMS experiment. No significant excess is observed in the data above the expected background, and the existence of top-quark partners with masses below 800 GeV is excluded at a 95% confidence level, assuming they decay exclusively to tW. This is the first limit on these particles from the LHC, and it is significantly more restrictive than previous limits.

Details

Title: Subtitle: Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State
Creators: CMS Collaboration
U Akgun - University of Iowa, Physics and Astronomy
E. A Albayrak - University of Iowa, Physics and Astronomy
B Bilki - University of Iowa, Physics and Astronomy
W Clarida
K Dilsiz - University of Iowa, Physics and Astronomy
F. Duru - University of Iowa
J-P Merlo - University of Iowa
H Mermerkaya - University of Iowa
A Mestvirishvili - University of Iowa, Physics and Astronomy
A Moeller - University of Iowa
J Nachtman - University of Iowa, Physics and Astronomy
H Ogul - University of Iowa, Physics and Astronomy
Y Onel - University of Iowa, Physics and Astronomy
F Ozok - University of Iowa
A Penzo - University of Iowa, Physics and Astronomy
S Sen
P Tan - University of Iowa
E Tiras - University of Iowa, Physics and Astronomy
J Wetzel - University of Iowa, Physics and Astronomy
T Yetkin - University of Iowa, Physics and Astronomy
K Yi - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Physical review letters, Vol.112(17), 171801
DOI: 10.1103/PhysRevLett.112.171801
PMID: 24836237
NLM abbreviation: Phys Rev Lett
ISSN: 0031-9007
eISSN: 1079-7114
Language: English
Date published: 2014
Academic Unit: Physics and Astronomy
Record Identifier: 9984443242602771

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