Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets

In the CERN NA63 collaboration we have addressed the question of the potential inadequacy of the commonly used Migdal formulation of the Landau-Pomeranchuk-Migdal (LPM) effect by measuring the photon emission by 20 and 178 GeV electrons in the range 100 MeV - 4 GeV, in targets of LowDensityPolyEthyl...

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Autores principales: Andersen, K.K., Andersen, S.L., Esberg, J., Knudsen, H., Mikkelsen, R.E., Uggerhøj, U.I., Wistisen, T.N., Sona, P., Mangiarotti, A., Ketel, T.J.
Lenguaje:eng
Publicado: 2013
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.88.072007
http://cds.cern.ch/record/1602726
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author Andersen, K.K.
Andersen, S.L.
Esberg, J.
Knudsen, H.
Mikkelsen, R.E.
Uggerhøj, U.I.
Wistisen, T.N.
Sona, P.
Mangiarotti, A.
Ketel, T.J.
author_facet Andersen, K.K.
Andersen, S.L.
Esberg, J.
Knudsen, H.
Mikkelsen, R.E.
Uggerhøj, U.I.
Wistisen, T.N.
Sona, P.
Mangiarotti, A.
Ketel, T.J.
author_sort Andersen, K.K.
collection CERN
description In the CERN NA63 collaboration we have addressed the question of the potential inadequacy of the commonly used Migdal formulation of the Landau-Pomeranchuk-Migdal (LPM) effect by measuring the photon emission by 20 and 178 GeV electrons in the range 100 MeV - 4 GeV, in targets of LowDensityPolyEthylene (LDPE), C, Al, Ti, Fe, Cu, Mo and, as a reference target, Ta. For each target and energy, a comparison between simulated values based on the LPM suppression of incoherent bremsstrahlung is shown, taking multi-photon effects into account. For these targets and energies, we find that Migdal's theoretical formulation is adequate to a precision of better than about 5%, irrespective of the target substance.
id cern-1602726
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-16027262023-03-14T19:41:22Zdoi:10.1103/PhysRevD.88.072007http://cds.cern.ch/record/1602726engAndersen, K.K.Andersen, S.L.Esberg, J.Knudsen, H.Mikkelsen, R.E.Uggerhøj, U.I.Wistisen, T.N.Sona, P.Mangiarotti, A.Ketel, T.J.Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targetsDetectors and Experimental TechniquesIn the CERN NA63 collaboration we have addressed the question of the potential inadequacy of the commonly used Migdal formulation of the Landau-Pomeranchuk-Migdal (LPM) effect by measuring the photon emission by 20 and 178 GeV electrons in the range 100 MeV - 4 GeV, in targets of LowDensityPolyEthylene (LDPE), C, Al, Ti, Fe, Cu, Mo and, as a reference target, Ta. For each target and energy, a comparison between simulated values based on the LPM suppression of incoherent bremsstrahlung is shown, taking multi-photon effects into account. For these targets and energies, we find that Migdal's theoretical formulation is adequate to a precision of better than about 5%, irrespective of the target substance.In the CERN NA63 Collaboration we address the question of the potential inadequacy of the commonly used Migdal formulation of the Landau-Pomeranchuk-Migdal (LPM) effect by measuring the photon emission by 20 and 178 GeV electrons in the range of 100 MeV–4 GeV, in targets of low-density polyethylene, C, Al, Ti, Fe, Cu, Mo, and, as a reference target, Ta. For each target and energy, a comparison between simulated values based on the LPM suppression of incoherent bremsstrahlung is shown, taking multiphoton effects into account. For these targets and energies, we find that Migdal’s theoretical formulation is adequate to a precision of better than about 5%, irrespective of the target substance.In the CERN NA63 collaboration we have addressed the question of the potential inadequacy of the commonly used Migdal formulation of the Landau-Pomeranchuk-Migdal (LPM) effect by measuring the photon emission by 20 and 178 GeV electrons in the range 100 MeV - 4 GeV, in targets of LowDensityPolyEthylene (LDPE), C, Al, Ti, Fe, Cu, Mo and, as a reference target, Ta. For each target and energy, a comparison between simulated values based on the LPM suppression of incoherent bremsstrahlung is shown, taking multi-photon effects into account. For these targets and energies, we find that Migdal's theoretical formulation is adequate to a precision of better than about 5%, irrespective of the target substance.arXiv:1309.5765oai:cds.cern.ch:16027262013-09-23
spellingShingle Detectors and Experimental Techniques
Andersen, K.K.
Andersen, S.L.
Esberg, J.
Knudsen, H.
Mikkelsen, R.E.
Uggerhøj, U.I.
Wistisen, T.N.
Sona, P.
Mangiarotti, A.
Ketel, T.J.
Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets
title Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets
title_full Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets
title_fullStr Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets
title_full_unstemmed Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets
title_short Experimental investigation of the Landau-Pomeranchuk-Migdal effect in low-Z targets
title_sort experimental investigation of the landau-pomeranchuk-migdal effect in low-z targets
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1103/PhysRevD.88.072007
http://cds.cern.ch/record/1602726
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