Publication
Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV
| dc.contributor.author | CMS collaboration (2148 authors) | |
| dc.contributor.author | Hollar, Jonathan | |
| dc.contributor.author | Nayak, Aruna | |
| dc.contributor.author | Bargassa, Pedrame | |
| dc.contributor.author | Beirão Da Cruz E Silva, Cristóvão | |
| dc.contributor.author | Faccioli, Pietro | |
| dc.contributor.author | Ferreira Parracho, Pedro Guilherme | |
| dc.contributor.author | Gallinaro, Michele | |
| dc.contributor.author | Lloret Iglesias, Lara | |
| dc.contributor.author | Nguyen, Federico | |
| dc.contributor.author | Rodrigues Antunes, Joao | |
| dc.contributor.author | Seixas, Joao | |
| dc.contributor.author | Varela, Joao | |
| dc.contributor.author | Vischia, Pietro | |
| dc.contributor.author | David Tinoco Mendes, Andre | |
| dc.contributor.author | Musella, Pasquale | |
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Pela, Joao | |
| dc.contributor.author | Leonardo, Nuno | |
| dc.date.accessioned | 2019-02-04T04:53:04Z | |
| dc.date.available | 2019-02-04T04:53:04Z | |
| dc.date.issued | 2014-11-21 | |
| dc.date.updated | 2019-02-04T04:53:04Z | |
| dc.description.abstract | <p>Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, <inline-formula><mml:math display="inline"><mml:mi>Z</mml:mi></mml:math></inline-formula>, and <inline-formula><mml:math display="inline"><mml:mi>W</mml:mi></mml:math></inline-formula> bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about <inline-formula><mml:math display="inline"><mml:mrow><mml:mn>19.5</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mrow><mml:msup><mml:mrow><mml:mi>fb</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:math></inline-formula> of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino pair production in which each neutralino decays either to a Higgs boson (<inline-formula><mml:math display="inline"><mml:mi>h</mml:mi></mml:math></inline-formula>) and an LSP or to a <inline-formula><mml:math display="inline"><mml:mi>Z</mml:mi></mml:math></inline-formula> boson and an LSP, leading to <inline-formula><mml:math display="inline"><mml:mi>h</mml:mi><mml:mi>h</mml:mi></mml:math></inline-formula>, <inline-formula><mml:math display="inline"><mml:mi>h</mml:mi><mml:mi>Z</mml:mi></mml:math></inline-formula>, and <inline-formula><mml:math display="inline"><mml:mi>Z</mml:mi><mml:mi>Z</mml:mi></mml:math></inline-formula> states with missing transverse energy (<inline-formula><mml:math display="inline"><mml:msubsup><mml:mi>E</mml:mi><mml:mi mathvariant="normal">T</mml:mi><mml:mtext>miss</mml:mtext></mml:msubsup></mml:math></inline-formula>). A second aspect is chargino-neutralino pair production, leading to <inline-formula><mml:math display="inline"><mml:mi>h</mml:mi><mml:mi>W</mml:mi></mml:math></inline-formula> states with <inline-formula><mml:math display="inline"><mml:msubsup><mml:mi>E</mml:mi><mml:mi mathvariant="normal">T</mml:mi><mml:mtext>miss</mml:mtext></mml:msubsup></mml:math></inline-formula>. The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the <inline-formula><mml:math display="inline"><mml:mi>Z</mml:mi></mml:math></inline-formula> and <inline-formula><mml:math display="inline"><mml:mi>W</mml:mi></mml:math></inline-formula> bosons. No evidence is found for supersymmetric particles, and 95% confidence level upper limits are evaluated for the respective pair production cross sections and for neutralino and chargino mass values.</p> | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Rev. D90 (2014) 092007; DOI 10.1103/PhysRevD.90.092007 | |
| dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevD.90.092007 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26683 | |
| dc.language.iso | eng | |
| dc.title | Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |