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Title: The Determination of the Helicity of W' Boson Coupling at the LHC

Abstract

Apart from its mass and width, the most important property of a new charged gauge boson, W{prime}, is the helicity of its couplings to the SM fermions. Such particles are expected to exist in many extensions of the Standard Model. In this paper we explore the capability of the LHC to determine the W{prime} coupling helicity at low integrated luminosities in the {ell} + E{sub T}{sup miss} discovery channel. We find that measurements of the transverse mass distribution, reconstructed from this final state in the W-W{prime} interference region, provides the best determination of this quantity. To make such measurements requires integrated luminosities of {approx} 10(60) fb{sup -1} assuming M{sub W{prime}} = 1.5(2.5) TeV and provided that the W{prime} couplings have Standard Model magnitude. This helicity determination can be further strengthened by the use of various discovery channel leptonic asymmetries, also measured in the same interference regime, but with higher integrated luminosities.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
901826
Report Number(s):
SLAC-PUB-12392
arXiv:0704.0235; TRN: US200717%%74
DOE Contract Number:
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of High Energy Physics (JHEP)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOSONS; FERMIONS; HELICITY; MASS DISTRIBUTION; STANDARD MODEL; Phenomenology-HEP,HEPPH, HEPTH

Citation Formats

Rizzo, Thomas G. The Determination of the Helicity of W' Boson Coupling at the LHC. United States: N. p., 2007. Web. doi:10.1088/1126-6708/2007/05/037.
Rizzo, Thomas G. The Determination of the Helicity of W' Boson Coupling at the LHC. United States. doi:10.1088/1126-6708/2007/05/037.
Rizzo, Thomas G. Fri . "The Determination of the Helicity of W' Boson Coupling at the LHC". United States. doi:10.1088/1126-6708/2007/05/037. https://www.osti.gov/servlets/purl/901826.
@article{osti_901826,
title = {The Determination of the Helicity of W' Boson Coupling at the LHC},
author = {Rizzo, Thomas G.},
abstractNote = {Apart from its mass and width, the most important property of a new charged gauge boson, W{prime}, is the helicity of its couplings to the SM fermions. Such particles are expected to exist in many extensions of the Standard Model. In this paper we explore the capability of the LHC to determine the W{prime} coupling helicity at low integrated luminosities in the {ell} + E{sub T}{sup miss} discovery channel. We find that measurements of the transverse mass distribution, reconstructed from this final state in the W-W{prime} interference region, provides the best determination of this quantity. To make such measurements requires integrated luminosities of {approx} 10(60) fb{sup -1} assuming M{sub W{prime}} = 1.5(2.5) TeV and provided that the W{prime} couplings have Standard Model magnitude. This helicity determination can be further strengthened by the use of various discovery channel leptonic asymmetries, also measured in the same interference regime, but with higher integrated luminosities.},
doi = {10.1088/1126-6708/2007/05/037},
journal = {Journal of High Energy Physics (JHEP)},
number = ,
volume = ,
place = {United States},
year = {Fri Apr 06 00:00:00 EDT 2007},
month = {Fri Apr 06 00:00:00 EDT 2007}
}
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