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Title: Research on data from the ATLAS experiment at CERN

In this report senior investigator Prof. Milind V. Purohit describes research done with data from the ATLAS experiment at CERN. This includes preparing papers on the performance of the CSC detector, searches for SUSY using a new modern ''big data'' technique, and a search for supersymmetry (SUSY) using the "zero leptons razor" (0LRaz) technique. The prediction of the W=Z+jets background processes by the ATLAS simulation prior to the fit is found to be overestimated in the phase space of interest. In all new signal regions presented in this analysis the number of events observed is consistent with the post-fit SM expectations. Assuming R-parity conservation, the limit on the gluino mass exceeds 1150 GeV at 95% confidence level, for an LSP mass smaller than 100 GeV. Other USC personnel who participated in this project during the period of this grant were a graduate student, Anton Kravchenko.
Authors:
 [1]
  1. Univ. of South Carolina, Columbia, SC (United States)
Publication Date:
OSTI Identifier:
1204505
Report Number(s):
DOE-SC--10071
TRN: US1600080
DOE Contract Number:
SC0010071
Resource Type:
Technical Report
Research Org:
Univ. of South Carolina, Columbia, SC (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ATLAS DETECTOR; SUPERSYMMETRY; MASS; FORECASTING; PERFORMANCE; SIMULATION; GLUINOS; LIMITING VALUES