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T Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ Physics
T-odd correlations of polarizations and momenta provide a promising testing ground for new physics beyond the standard model. We estimate the contribution of the minimal supersymmetric extension of the standard model to two such observables: in the production of $t\bar{t}$, we look for a term propor...
Autores principales: | , |
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Lenguaje: | eng |
Publicado: |
1993
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Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(93)91622-T http://cds.cern.ch/record/559936 |
_version_ | 1780899049023471616 |
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author | Christova, Ekaterina Fabbrichesi, Marco |
author_facet | Christova, Ekaterina Fabbrichesi, Marco |
author_sort | Christova, Ekaterina |
collection | CERN |
description | T-odd correlations of polarizations and momenta provide a promising testing ground for new physics beyond the standard model. We estimate the contribution of the minimal supersymmetric extension of the standard model to two such observables: in the production of $t\bar{t}$, we look for a term proportional to \mbox{${\bf J}_t \cdot ({\bf p}_q \times {\bf p}_{t})$}-where {\bf J}$_t$ is the polarization of the $t$ quark and {\bf p} $_{q,t}$ are the momenta of the initial and final particles-and find that it is of the order of $10^{-1} \times (\alpha_s/\pi)$. In the production of $W^+W^-$, we look for a term proportional to \mbox{${\bf E}_W \cdot ({\bf p}_q \times {\bf p}_{W})({\bf p}_q \cdot {\bf E}_W)$}-where {\bf E}$_W$ is the transverse polarization of W- to find that it can be as large as $10^{-1} \times (\alpha_w/\pi)$. |
id | cern-559936 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 1993 |
record_format | invenio |
spelling | cern-5599362023-03-14T17:13:25Zdoi:10.1016/0370-2693(93)91622-Thttp://cds.cern.ch/record/559936engChristova, EkaterinaFabbrichesi, MarcoT Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ PhysicsParticle Physics - PhenomenologyT-odd correlations of polarizations and momenta provide a promising testing ground for new physics beyond the standard model. We estimate the contribution of the minimal supersymmetric extension of the standard model to two such observables: in the production of $t\bar{t}$, we look for a term proportional to \mbox{${\bf J}_t \cdot ({\bf p}_q \times {\bf p}_{t})$}-where {\bf J}$_t$ is the polarization of the $t$ quark and {\bf p} $_{q,t}$ are the momenta of the initial and final particles-and find that it is of the order of $10^{-1} \times (\alpha_s/\pi)$. In the production of $W^+W^-$, we look for a term proportional to \mbox{${\bf E}_W \cdot ({\bf p}_q \times {\bf p}_{W})({\bf p}_q \cdot {\bf E}_W)$}-where {\bf E}$_W$ is the transverse polarization of W- to find that it can be as large as $10^{-1} \times (\alpha_w/\pi)$.$T$-odd, $CP$-violating correlations of polarizations and momenta provide a promising testing ground for new physics beyond the standard model. We estimate the contribution of the minimal supersymmetric extension of the standard model to two such observables: in the production of $t\bar{t}$, we look for a term proportional to \mbox{$\mbox{\bf J}_t \cdot \left( \mbox{\bf p}_q \times \mbox{\bf p}_{t} \right)$}---where {\bf J}$_t$ is the polarization of the $t$ quark and {\bf p}$_{q,t}$ are the momenta of the initial and final particles---and find that it is of the order of $10~{-2} \times (\alpha_W/\pi)$. In the production of $W~+W~-$, we look for a term proportional to \mbox{$\mbox{\bf E}_W \cdot \left( \mbox{\bf p}_q \times \mbox{\bf p}_{W} \right) \left( \mbox{\bf p}_q \cdot \mbox{\bf E}_W \right)$}---where {\bf E}$_W$ is the transverse polarization of W--- to find that it can be as large as $10~{-1} \times (\alpha_W/\pi)$.T -odd dorrelationms of polarizations and momenta provide a promising testing grouns for new physics beyond the standard model. We estimate the contribution of the minimal supersymmetric extension of the standard model to two such observable: in the production of t t , we look for a term proportional to J t ·( p q × p t ) - where J t is the polarization of the t quark and p q,t are the momenta of the initial and final particles - and find that it is of the order of 10 −1 ×( α s π ) . Int the production of W + W − , we look for a term proportional to E W ·( p q × p W )( p q · E W ) - where E W is the transverse polarization of W - to find that it can be as large as 10 −1 × ( α w π ) .hep-ph/9302315CERN-TH-6751-92CERN-TH-6751-92oai:cds.cern.ch:5599361993-02-26 |
spellingShingle | Particle Physics - Phenomenology Christova, Ekaterina Fabbrichesi, Marco T Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ Physics |
title | T Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ Physics |
title_full | T Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ Physics |
title_fullStr | T Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ Physics |
title_full_unstemmed | T Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ Physics |
title_short | T Violation Induced by Supersymmetry in $t\overline{t}$ and $W^+ W^-$ Physics |
title_sort | t violation induced by supersymmetry in $t\overline{t}$ and $w^+ w^-$ physics |
topic | Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1016/0370-2693(93)91622-T http://cds.cern.ch/record/559936 |
work_keys_str_mv | AT christovaekaterina tviolationinducedbysupersymmetryintoverlinetandwwphysics AT fabbrichesimarco tviolationinducedbysupersymmetryintoverlinetandwwphysics |