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Tau Polarization at a Hadron Collider.

Cummings, Jane Theresa.

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Tau Polarization at a Hadron Collider.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Tau Polarization at a Hadron Collider./
Author:	Cummings, Jane Theresa.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
Description:	179 p.
Notes:	Source: Dissertation Abstracts International, Volume: 77-12(E), Section: B.
Contained By:	Dissertation Abstracts International77-12B(E).
Subject:	High energy physics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10153104
ISBN:	9781369082364

Tau Polarization at a Hadron Collider.
Cummings, Jane Theresa.

Tau Polarization at a Hadron Collider. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 179 p.

Source: Dissertation Abstracts International, Volume: 77-12(E), Section: B.

Thesis (Ph.D.)--Yale University, 2016.

In this thesis, the first measurement of tau polarization at a hadron collider, and the first measurement of tau polarization in W boson decays to a tau and neutrino altogether, is presented. The measurement of tau polarization is a test of the structure of the vector (V) and axial vector (A) couplings of the W boson to the third generation leptons. Such a test is not possible with first and second generation leptons for which the helicity state is not accessible in a collider experiment. The V-A structure of the charged current weak interaction at small W virtuality (Q2) is well established from the kinematics of tau decays while the structure at Q2 = m2 w had not been measured explicitly. In addition, an advanced analysis of the tau polarization in Z boson decays to tau pairs is presented.

ISBN: 9781369082364Subjects--Topical Terms:

2144759
High energy physics.

Tau Polarization at a Hadron Collider.
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245 1 0 $a Tau Polarization at a Hadron Collider.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2016
300 $a 179 p.
500 $a Source: Dissertation Abstracts International, Volume: 77-12(E), Section: B.
500 $a Adviser: Sarah Demers.
502 $a Thesis (Ph.D.)--Yale University, 2016.
520 $a In this thesis, the first measurement of tau polarization at a hadron collider, and the first measurement of tau polarization in W boson decays to a tau and neutrino altogether, is presented. The measurement of tau polarization is a test of the structure of the vector (V) and axial vector (A) couplings of the W boson to the third generation leptons. Such a test is not possible with first and second generation leptons for which the helicity state is not accessible in a collider experiment. The V-A structure of the charged current weak interaction at small W virtuality (Q2) is well established from the kinematics of tau decays while the structure at Q2 = m2 w had not been measured explicitly. In addition, an advanced analysis of the tau polarization in Z boson decays to tau pairs is presented.
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