The fully differential top decay distribution
Abstract
We write down the four-dimensional fully differential decay distribution for the top quark decay t → Wb → ℓνb. We discuss how its eight physical parameters can be measured, either with a global fit or with the use of selected one-dimensional distributions and asymmetries. We give expressions for the top decay amplitudes for a general tbW interaction, and show how the untangled measurement of the two components of the fraction of longitudinal W bosons – those with b quark helicities of 1/2 and –1/2, respectively – could improve the precision of a global fit to the tbW vertex.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Pittsburgh, PA (United States); Univ. of Granada (Spain); CSIC-Univ. of Valencia, Paterna (Spain)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); Ministry of Economy and Competitiveness (MINECO) (Spain); Regional Government of Andalusia; Generalitat Valenciana; European Commission (EC)
- OSTI Identifier:
- 1348965
- Alternate Identifier(s):
- OSTI ID: 1368400
- Grant/Contract Number:
- SC0007914; FPA 2016-78220-C3-1-P; FPA2015-65652-C4-1-R; FPA 2013-47836-C3-2-P; FQM-101; PROMETEO/2010/021; PITN-GA-2012-316704
- Resource Type:
- Published Article
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 77 Journal Issue: 3; Journal ID: ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Aguilar-Saavedra, J. A., Boudreau, J., Escobar, C., and Mueller, J. The fully differential top decay distribution. Germany: N. p., 2017.
Web. doi:10.1140/epjc/s10052-017-4761-5.
Aguilar-Saavedra, J. A., Boudreau, J., Escobar, C., & Mueller, J. The fully differential top decay distribution. Germany. https://doi.org/10.1140/epjc/s10052-017-4761-5
Aguilar-Saavedra, J. A., Boudreau, J., Escobar, C., and Mueller, J. Wed .
"The fully differential top decay distribution". Germany. https://doi.org/10.1140/epjc/s10052-017-4761-5.
@article{osti_1348965,
title = {The fully differential top decay distribution},
author = {Aguilar-Saavedra, J. A. and Boudreau, J. and Escobar, C. and Mueller, J.},
abstractNote = {We write down the four-dimensional fully differential decay distribution for the top quark decay t → Wb → ℓνb. We discuss how its eight physical parameters can be measured, either with a global fit or with the use of selected one-dimensional distributions and asymmetries. We give expressions for the top decay amplitudes for a general tbW interaction, and show how the untangled measurement of the two components of the fraction of longitudinal W bosons – those with b quark helicities of 1/2 and –1/2, respectively – could improve the precision of a global fit to the tbW vertex.},
doi = {10.1140/epjc/s10052-017-4761-5},
journal = {European Physical Journal. C, Particles and Fields},
number = 3,
volume = 77,
place = {Germany},
year = {Wed Mar 29 00:00:00 EDT 2017},
month = {Wed Mar 29 00:00:00 EDT 2017}
}
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https://doi.org/10.1140/epjc/s10052-017-4761-5
https://doi.org/10.1140/epjc/s10052-017-4761-5
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