Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplings

We give a simple physical argument to understand the observation that the angular distribution of the top decay lepton depends only on the polarisation of the top and is independent of any anomalous tbW coupling to linear order. Keywords: Top quark, Top polarisation, Anomalous tbW coupling, BSM, Top...

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Main Authors: Rohini M. Godbole, Michael E. Peskin, Saurabh D. Rindani, Ritesh K. Singh
Format: Article
Language:English
Published: Elsevier 2019-03-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319300383
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author Rohini M. Godbole
Michael E. Peskin
Saurabh D. Rindani
Ritesh K. Singh
author_facet Rohini M. Godbole
Michael E. Peskin
Saurabh D. Rindani
Ritesh K. Singh
author_sort Rohini M. Godbole
collection DOAJ
description We give a simple physical argument to understand the observation that the angular distribution of the top decay lepton depends only on the polarisation of the top and is independent of any anomalous tbW coupling to linear order. Keywords: Top quark, Top polarisation, Anomalous tbW coupling, BSM, Top decay distributions
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spelling doaj.art-ca6d7887e48946bd8ead5bedc6ab2e6f2022-12-22T02:15:56ZengElsevierPhysics Letters B0370-26932019-03-01790322325Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplingsRohini M. Godbole0Michael E. Peskin1Saurabh D. Rindani2Ritesh K. Singh3Center for High Energy Physics, Indian Institute of Science, Bangalore 560012, India; Institute of Physics and Astronomy, University of Amsterdam, Science Park 904, the Netherlands; Corresponding author.SLAC, Stanford University, Menlo Park, CA 94025, USATheoretical Physics Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380009, IndiaDepartment of Physical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, IndiaWe give a simple physical argument to understand the observation that the angular distribution of the top decay lepton depends only on the polarisation of the top and is independent of any anomalous tbW coupling to linear order. Keywords: Top quark, Top polarisation, Anomalous tbW coupling, BSM, Top decay distributionshttp://www.sciencedirect.com/science/article/pii/S0370269319300383
spellingShingle Rohini M. Godbole
Michael E. Peskin
Saurabh D. Rindani
Ritesh K. Singh
Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplings
Physics Letters B
title Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplings
title_full Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplings
title_fullStr Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplings
title_full_unstemmed Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplings
title_short Why the angular distribution of the top decay lepton is unchanged by anomalous tbW couplings
title_sort why the angular distribution of the top decay lepton is unchanged by anomalous tbw couplings
url http://www.sciencedirect.com/science/article/pii/S0370269319300383
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