CERN Accelerating science

Thesis
Report number CERN-THESIS-2013-448
Title 利用緊湊渺子線圈搜尋第四世代下型夸克
Translation of title Search for a Fourth Generation Bottom-like Quark in CMS
Author(s) Lei, Yeong-jyi (Taiwan, Natl. Taiwan U.)
Publication 97.
Thesis note PhD : Taiwan, Natl. Taiwan U. : 2013
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; CMS
Abstract Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at a center of mass energy of 7 TeV, undertaken with the CMS experiment at the LHC. The b0 quarks are assumed to decay exclusively to tW. The pair production process of b0 can be identified by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a datasample corresponding to an integrated luminosity of 4.9 fb−1, observed events are compared to the standard model background predictions, and the existence of b0 quarks having masses below 611 GeV is excluded at 95% confidence level.

Corresponding record in: Inspire

 レコード 生成: 2017-09-12, 最終変更: 2017-09-13


External link:
Download fulltext
フルテキスト
  • Send to ScienceWise.info