Header

UZH-Logo

Maintenance Infos

Search for electroweak production of charginos and neutralinos in WH events in proton-proton collisions at $\sqrt{s}$ = 13 TeV


CMS Collaboration; Canelli, Florencia; Kilminster, Benjamin; Aarestad, Thea; Caminada, Lea; de Cosa, Annapaoloa; Del Burgo, Riccardo; Donato, Silvio; Galloni, Camilla; Hinzmann, Andreas; Hreus, Tomas; Ngadiuba, Jennifer; Pinna, Deborah; Rauco, Giorgia; Robmann, Peter; Salerno, Daniel; Schweiger, Korbinian; Seitz, Claudia; Takahashi, Yuta; Zucchetta, Alberto; et al (2017). Search for electroweak production of charginos and neutralinos in WH events in proton-proton collisions at $\sqrt{s}$ = 13 TeV. Journal of High Energy Physics, 11:029.

Abstract

Results are reported from a search for physics beyond the standard model in proton-proton collision events with a charged lepton (electron or muon), two jets identified as originating from a bottom quark decay, and significant imbalance in the transverse momentum. The search was performed using a data sample corresponding to 35.9 $fb^{−1}$, collected by the CMS experiment in 2016 at $\sqrt{s}$ = 13 TeV. Events with this signature can arise, for example, from the electroweak production of gauginos, which are predicted in models based on supersymmetry. The event yields observed in data are consistent with the estimated standard model backgrounds. Limits are obtained on the cross sections for chargino-neutralino $(\tilde{\chi}_1^{\pm} \tilde{\chi}_2^0)$ production in a simplified model of supersymmetry with the decays $\chi_1^{\pm}\to {\mathrm{W}}^{\pm }{\tilde{\chi}}_1^0\kern0.5em \mathrm{and}\kern0.5em {\tilde{\chi}}_2^0\to \mathrm{H}{\chi}_1^0$. Values of $m_{{\tilde{\chi}}_1^{\pm}}$ between 220 and 490 GeV are excluded at 95% confidence level by this search when the $\tilde{\chi}_1^0$ is massless, and values of $m_{{\tilde{\chi}}_1^0}$ are 1 excluded up to 110 GeV for $m_{\tilde{\chi}_1^{\pm }}\approx 450$ GeV.

Abstract

Results are reported from a search for physics beyond the standard model in proton-proton collision events with a charged lepton (electron or muon), two jets identified as originating from a bottom quark decay, and significant imbalance in the transverse momentum. The search was performed using a data sample corresponding to 35.9 $fb^{−1}$, collected by the CMS experiment in 2016 at $\sqrt{s}$ = 13 TeV. Events with this signature can arise, for example, from the electroweak production of gauginos, which are predicted in models based on supersymmetry. The event yields observed in data are consistent with the estimated standard model backgrounds. Limits are obtained on the cross sections for chargino-neutralino $(\tilde{\chi}_1^{\pm} \tilde{\chi}_2^0)$ production in a simplified model of supersymmetry with the decays $\chi_1^{\pm}\to {\mathrm{W}}^{\pm }{\tilde{\chi}}_1^0\kern0.5em \mathrm{and}\kern0.5em {\tilde{\chi}}_2^0\to \mathrm{H}{\chi}_1^0$. Values of $m_{{\tilde{\chi}}_1^{\pm}}$ between 220 and 490 GeV are excluded at 95% confidence level by this search when the $\tilde{\chi}_1^0$ is massless, and values of $m_{{\tilde{\chi}}_1^0}$ are 1 excluded up to 110 GeV for $m_{\tilde{\chi}_1^{\pm }}\approx 450$ GeV.

Statistics

Citations

Dimensions.ai Metrics

Altmetrics

Downloads

4 downloads since deposited on 08 Feb 2018
4 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:08 Feb 2018 15:52
Last Modified:19 Feb 2018 10:46
Publisher:Springer
ISSN:1029-8479
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/JHEP11(2017)029

Download

Download PDF  'Search for electroweak production of charginos and neutralinos in WH events in proton-proton collisions at $\sqrt{s}$ = 13 TeV'.
Preview
Content: Published Version
Filetype: PDF
Size: 752kB
View at publisher
Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)