Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at root s=8 TeV

File(s)

JHEP07(2016)027.pdf (1.05 MB)

Published version

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OA Location

https://link.springer.com/article/10.1007/JHEP07(2016)027

Author(s)

Khachatryan, V

Sirunyan, AM

Tumasyan, A

Adam, W

Asilar, E

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Type

Journal Article

Abstract

Results are reported from a search for the top squark t~1, the lighter of the two supersymmetric partners of the top quark. The data sample corresponds to 19.7 fb−1 of proton-proton collisions at s√=8 TeV collected with the CMS detector at the LHC. The search targets t~1→bχ~±1 and t~1→t(∗)χ~01 decay modes, where χ~±1 and χ~01 are the lightest chargino and neutralino, respectively. The reconstructed final state consists of jets, b jets, missing transverse energy, and either one or two leptons. Leading backgrounds are determined from data. No significant excess in data is observed above the expectation from standard model processes. The results exclude a region of the two-dimensional plane of possible t~1 and χ~01 masses. The highest excluded t~1 and χ~01 masses are about 700 GeV and 250 GeV, respectively.

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Date Issued

2016-07-05

Date Acceptance

2016-06-21

Citation

Journal of High Energy Physics, 2016, 2016 (7)

URI

http://hdl.handle.net/10044/1/53972

DOI

10.1007/JHEP07(2016)027

ISSN

1029-8479

Publisher

Springer Verlag (Germany)

Journal / Book Title

Journal of High Energy Physics

Volume

2016

Issue

7

Copyright Statement

© The Author(s) 2016. his article is distributed under the terms of the Creative Commons
Attribution License (
CC-BY 4.0
), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.

Identifier

http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000411290400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202

Subjects

Science & Technology

Physical Sciences

Physics, Particles & Fields

Physics

Hadron-Hadron scattering (experiments)

Supersymmetry

top squark

MODEL HIGGS-BOSON

P(P)OVER-BAR COLLISIONS

HADRON COLLIDERS

DARK-MATTER

PARTICLE

EVENTS

SQUARK

LHC

Publication Status

Published

Article Number

ARTN 027