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Charged pions polarizability measurement at COMPASS

The pion electromagnetic structure can be probed in $\pi^{−}+(A,Z)\rightarrow\pi^{-}+(A,Z)+\gamma$ Compton scattering in inverse kinematics (Primakoff reaction) and described by the electric $(\alpha_{\pi})$ and the magnetic $(\beta_{\pi})$ polarizabilities that depend on the rigidity of pion’s inte...

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Autor principal: Guskov, A
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:http://cds.cern.ch/record/1494612
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author Guskov, A
author_facet Guskov, A
author_sort Guskov, A
collection CERN
description The pion electromagnetic structure can be probed in $\pi^{−}+(A,Z)\rightarrow\pi^{-}+(A,Z)+\gamma$ Compton scattering in inverse kinematics (Primakoff reaction) and described by the electric $(\alpha_{\pi})$ and the magnetic $(\beta_{\pi})$ polarizabilities that depend on the rigidity of pion’s internal structure as a composite particle. Values for pion polarizabilities can be extracted from the comparison of the differential cross section for scattering of point-like pions with the measured cross section. The opportunity to measure pion polarizability via the Primakoff reaction at the COMPASS experiment was studied with $a$ $\pi^{-}$ beam of 190 GeV during pilot run 2004. The obtained results were used for preparation of the new data taking which was performed in 2009.
id cern-1494612
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
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spelling cern-14946122019-09-30T06:29:59Zhttp://cds.cern.ch/record/1494612engGuskov, ACharged pions polarizability measurement at COMPASSParticle Physics - ExperimentThe pion electromagnetic structure can be probed in $\pi^{−}+(A,Z)\rightarrow\pi^{-}+(A,Z)+\gamma$ Compton scattering in inverse kinematics (Primakoff reaction) and described by the electric $(\alpha_{\pi})$ and the magnetic $(\beta_{\pi})$ polarizabilities that depend on the rigidity of pion’s internal structure as a composite particle. Values for pion polarizabilities can be extracted from the comparison of the differential cross section for scattering of point-like pions with the measured cross section. The opportunity to measure pion polarizability via the Primakoff reaction at the COMPASS experiment was studied with $a$ $\pi^{-}$ beam of 190 GeV during pilot run 2004. The obtained results were used for preparation of the new data taking which was performed in 2009.oai:cds.cern.ch:14946122010
spellingShingle Particle Physics - Experiment
Guskov, A
Charged pions polarizability measurement at COMPASS
title Charged pions polarizability measurement at COMPASS
title_full Charged pions polarizability measurement at COMPASS
title_fullStr Charged pions polarizability measurement at COMPASS
title_full_unstemmed Charged pions polarizability measurement at COMPASS
title_short Charged pions polarizability measurement at COMPASS
title_sort charged pions polarizability measurement at compass
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1494612
work_keys_str_mv AT guskova chargedpionspolarizabilitymeasurementatcompass