SEARCH FOR ELECTROWEAK PRODUCTION OF SUPERSYMMETRIC STATES IN NON-UNIVERSAL HIGGS MASS MODEL WITH TWO EXTRA PARAMETERS COMPRESSED SCENARIO WITH THE ATLAS DETECTOR

Simple item page
dc.contributor.advisorSkubic, Patrick
dc.contributor.authorShen, Yu-Ting
dc.contributor.committeeMemberStrauss, Michael
dc.contributor.committeeMemberBaer, Howie
dc.contributor.committeeMemberWatson, Deborah
dc.contributor.committeeMemberShi, Zhisheng
dc.date.accessioned2018-05-02T20:37:13Z
dc.date.available2018-05-02T20:37:13Z
dc.date.issued2018-05-11
dc.date.manuscript2018-05-02
dc.description.abstractThe ATLAS and CMS collaborations announced the discovery of the Higgs boson in July 2012, completing the particle content of the Standard Model. Although the Standard Model is a great triumph, it is not considered to be the complete theory of particle physics. Among the newly-developed theories, Supersymmetry (SUSY) is one of the most promising ones. SUSY predicts the existence of supersymmetric partner particles and it is one of the best-motivated extensions of the space-time symmetry of particle interactions. There are supersymmetric partner particles associated with each SM particles in which the spin differs by 1/2. This dissertation focuses on a search for electroweak production of supersymmetric particles with compressed mass spectra in the final states with exactly two low-momentum leptons and missing transverse momentum. The proton-proton collision data is recorded by the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to 36.1~{\ifb} of integrated luminosity at $\sqrt{s} = 13$~{\TeV}. Events with same-flavor and opposite electric charge lepton pairs are selected. The data are found to be consistent with the Standard Model prediction. Results are interpreted using the non-universal Higgs mass model with two extra parameters (NUHM2) with small mass differences between the masses of produced supersymmetric particles. Upper limits of the cross-section at 95\% confidence level are set for the NUHM2 model as a function of the universal gaugino mass $m_{1/2}$.en_US
dc.identifier.urihttps://hdl.handle.net/11244/299774
dc.languageen_USen_US
dc.subjectSUSYen_US
dc.subjectNUHM2en_US
dc.subjectsupersymmetryen_US
dc.subjectATLASen_US
dc.subjectcompresseden_US
dc.thesis.degreePh.D.en_US
dc.titleSEARCH FOR ELECTROWEAK PRODUCTION OF SUPERSYMMETRIC STATES IN NON-UNIVERSAL HIGGS MASS MODEL WITH TWO EXTRA PARAMETERS COMPRESSED SCENARIO WITH THE ATLAS DETECTORen_US
ou.groupCollege of Arts and Sciences::Homer L. Dodge Department of Physics and Astronomyen_US
shareok.orcid0000-0002-3760-0187en_US

Files

Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
2018_Shen_Yu-Ting_Dissertation.pdf
Size:
10.04 MB
Format:
Adobe Portable Document Format
Description:
Download
No Thumbnail Available
Name:
2018_Shen_Yu-Ting_Dissertation.tar.gz
Size:
18.45 MB
Format:
Unknown data format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

OU - Dissertations