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Theoretical and Experimental Approaches to Dark Energy and the Cosmological Constant Problem

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Theoretical and Experimental Approaches to Dark Energy and the Cosmological Constant Problem/ by Ahmad Borzou.
Author:	Borzou, Ahmad.
Description:	XV, 111 p. 42 illus., 33 illus. in color.online resource. :
Contained By:	Springer Nature eBook
Subject:	Elementary particles (Physics). -
Online resource:	https://doi.org/10.1007/978-3-319-69632-4
ISBN:	9783319696324

Theoretical and Experimental Approaches to Dark Energy and the Cosmological Constant Problem
Borzou, Ahmad.

Theoretical and Experimental Approaches to Dark Energy and the Cosmological Constant Problem[electronic resource] /by Ahmad Borzou. - 1st ed. 2018. - XV, 111 p. 42 illus., 33 illus. in color.online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053. - Springer Theses, Recognizing Outstanding Ph.D. Research,.

Chapter1. Introduction -- Chapter2. Dark Energy -- Chapter3. A Lorentz gauge theory of gravity -- Chapter4. Standard Model and Supersymmetry -- Chapter5. The Large Hadron Collider -- Chapter6. The Compact Muon Solenoid. Chapter7. Search for supersymmetry in the multijet and missing transverse momentum channel in pp collisions at 13 TeV -- Chapter8. Summary.

This thesis represents a unique mix of theoretical work discussing the Lorentz theory of gravity and experimental work searching for supersymmetry with the Compact Muon Solenoid experiment at the Large Hadron Collider. It begins by reviewing a set of widely-discussed theoretical solutions to the cosmological constant problem, including a natural solution provided by the recently developed Lorentz gauge theory of gravity. The Schwartzschild metric, de Sitter space, and quantum versions of the theory are also discussed. The thesis then looks to supersymmetry for an alternative solution. The idea behind supersymmetry is reviewed and an experimental search for supersymmetry is presented. A major contribution was to estimate one of the most significant backgrounds in this search, which arises from top-antitop quark pair production or W boson production in association with multiple jets where the W boson decays into the hadronically-decaying tau leptons and neutrinos. This background was estimated through a novel method involving kinematically analogous events but including a well-measured muon. This search significantly extends limits on supersymmetric partners of gluons from previous searches.

ISBN: 9783319696324

Standard No.: 10.1007/978-3-319-69632-4doiSubjects--Topical Terms:

1254811
Elementary particles (Physics).

LC Class. No.: QC793-793.5

Dewey Class. No.: 539.72

Theoretical and Experimental Approaches to Dark Energy and the Cosmological Constant Problem
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520 $a This thesis represents a unique mix of theoretical work discussing the Lorentz theory of gravity and experimental work searching for supersymmetry with the Compact Muon Solenoid experiment at the Large Hadron Collider. It begins by reviewing a set of widely-discussed theoretical solutions to the cosmological constant problem, including a natural solution provided by the recently developed Lorentz gauge theory of gravity. The Schwartzschild metric, de Sitter space, and quantum versions of the theory are also discussed. The thesis then looks to supersymmetry for an alternative solution. The idea behind supersymmetry is reviewed and an experimental search for supersymmetry is presented. A major contribution was to estimate one of the most significant backgrounds in this search, which arises from top-antitop quark pair production or W boson production in association with multiple jets where the W boson decays into the hadronically-decaying tau leptons and neutrinos. This background was estimated through a novel method involving kinematically analogous events but including a well-measured muon. This search significantly extends limits on supersymmetric partners of gluons from previous searches.
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