Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2

The process e+e- to nu barnu + gamma with a distinctive ``photon-plus-missing-energy'' signal can serve as an important tool to search for new physics at LEP2. It can be exploited to measure the WW gamma coupling, or to search for weakly interacting and invisible (s)particles. For meaningf...

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Detalles Bibliográficos
Autores principales: Jacholkowska, A., Kalinowski, J., Was, Z.
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/s100520050358
https://dx.doi.org/10.1007/s100529800929
http://cds.cern.ch/record/350865
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author Jacholkowska, A.
Kalinowski, J.
Was, Z.
author_facet Jacholkowska, A.
Kalinowski, J.
Was, Z.
author_sort Jacholkowska, A.
collection CERN
description The process e+e- to nu barnu + gamma with a distinctive ``photon-plus-missing-energy'' signal can serve as an important tool to search for new physics at LEP2. It can be exploited to measure the WW gamma coupling, or to search for weakly interacting and invisible (s)particles. For meaningful comparisons of experimental data with theoretical predictions, higher-order QED corrections due to multiphoton emission must be taken into account. In the present paper we explain how the WW gamma coupling has been incorporated into the KORALZ Monte Carlo program, which can now be used for simulations of e+e- to nu bar nu + gamma events with higher-order QED corrections. The strategy of how to perform an experimental analysis in the presence of experimental cuts is proposed. The question of systematic uncertainties is addressed and some numerical results for the phenomenologically interesting case of anomalous WW gamma couplings are also given.
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institution Organización Europea para la Investigación Nuclear
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publishDate 1999
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spelling cern-3508652023-03-14T20:35:25Zdoi:10.1007/s100520050358doi:10.1007/s100529800929http://cds.cern.ch/record/350865engJacholkowska, A.Kalinowski, J.Was, Z.Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2Particle Physics - PhenomenologyThe process e+e- to nu barnu + gamma with a distinctive ``photon-plus-missing-energy'' signal can serve as an important tool to search for new physics at LEP2. It can be exploited to measure the WW gamma coupling, or to search for weakly interacting and invisible (s)particles. For meaningful comparisons of experimental data with theoretical predictions, higher-order QED corrections due to multiphoton emission must be taken into account. In the present paper we explain how the WW gamma coupling has been incorporated into the KORALZ Monte Carlo program, which can now be used for simulations of e+e- to nu bar nu + gamma events with higher-order QED corrections. The strategy of how to perform an experimental analysis in the presence of experimental cuts is proposed. The question of systematic uncertainties is addressed and some numerical results for the phenomenologically interesting case of anomalous WW gamma couplings are also given.The process e+e- to nu barnu + gamma with a distinctive ``photon-plus-missing-energy'' signal can serve as an important tool to search for new physics at LEP2. It can be exploited to measure the WW gamma coupling, or to search for weakly interacting and invisible (s)particles. For meaningful comparisons of experimental data with theoretical predictions, higher-order QED corrections due to multiphoton emission must be taken into account. In the present paper we explain how the WW gamma coupling has been incorporated into the KORALZ Monte Carlo program, which can now be used for simulations of e+e- to nu bar nu + gamma events with higher-order QED corrections. The strategy of how to perform an experimental analysis in the presence of experimental cuts is proposed. The question of systematic uncertainties is addressed and some numerical results for the phenomenologically interesting case of anomalous WW gamma couplings are also given.hep-ph/9803375CERN-TH-98-55IFT-3-98CERN-TH-98-055IFT-98-3oai:cds.cern.ch:3508651999
spellingShingle Particle Physics - Phenomenology
Jacholkowska, A.
Kalinowski, J.
Was, Z.
Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2
title Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2
title_full Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2
title_fullStr Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2
title_full_unstemmed Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2
title_short Higher-order QED corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at LEP2
title_sort higher-order qed corrections to $e^{+}e^{-} \rightarrow \nu\overline{\nu}\gamma$ at lep2
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/s100520050358
https://dx.doi.org/10.1007/s100529800929
http://cds.cern.ch/record/350865
work_keys_str_mv AT jacholkowskaa higherorderqedcorrectionstoeerightarrownuoverlinenugammaatlep2
AT kalinowskij higherorderqedcorrectionstoeerightarrownuoverlinenugammaatlep2
AT wasz higherorderqedcorrectionstoeerightarrownuoverlinenugammaatlep2

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