# Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at $\sqrt{s}$ = 8 TeV

CMS Collaboration; Canelli, F; Chiochia, V; Kilminster, B; Robmann, P; et al (2016). Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at $\sqrt{s}$ = 8 TeV. Journal of High Energy Physics, 1607:1-44.

## Abstract

Results are reported from a search for the top squark $\tilde{t}_{1}$, 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 $\sqrt{s}$ = 8 TeV collected with the CMS detector at the LHC. The search targets $\tilde{t}_{1} → b\tilde{x}^{±}_{1}$ and $\tilde{t}_{1} → t^{(*)}\tilde{x}^{0}_{1}$ decay modes, where $\tilde{x}^{±}_{1}$ and $\tilde{x}^{0}_{1}$ 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 back- grounds 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 00 two-dimensional plane of possible $\tilde{t}_{1}$ and $\tilde{x}^{0}_{1}$ masses. The highest excluded $\tilde{t}_{1}$ and $\tilde{x}^{0}_{1}$ masses are about 700 GeV and 250 GeV, respectively.

## Abstract

Results are reported from a search for the top squark $\tilde{t}_{1}$, 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 $\sqrt{s}$ = 8 TeV collected with the CMS detector at the LHC. The search targets $\tilde{t}_{1} → b\tilde{x}^{±}_{1}$ and $\tilde{t}_{1} → t^{(*)}\tilde{x}^{0}_{1}$ decay modes, where $\tilde{x}^{±}_{1}$ and $\tilde{x}^{0}_{1}$ 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 back- grounds 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 00 two-dimensional plane of possible $\tilde{t}_{1}$ and $\tilde{x}^{0}_{1}$ masses. The highest excluded $\tilde{t}_{1}$ and $\tilde{x}^{0}_{1}$ masses are about 700 GeV and 250 GeV, respectively.

## Statistics

### Altmetrics

Detailed statistics

Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics English 2016 10 Jan 2017 11:04 10 Jan 2017 11:04 Springer 1029-8479 Publisher DOI. An embargo period may apply. https://doi.org/10.1007/JHEP07(2016)027

Preview
Filetype: PDF
Size: 2MB
View at publisher
Preview
Content: Published Version
Filetype: PDF
Size: 1MB
Licence:

## TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.