Annihilation at rest of antiprotons and protons into neutral particles

Annihilation of antiprotons and protons at rest into neutral particles has been studied with the Crystal Barrel detector at LEAR. Annihilation frequencies are determined for final states containing π 0 , η , η ′ and ω mesons using a liquid and a room temperature, 12 bar, gaseous hydrogen target. Inc...

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Detalles Bibliográficos
Autores principales: Amsler, C, Anisovich, A.V., Baker, C.A., Barnett, B.M., Batty, C.J., Benayoun, M., Blum, P., Braune, K., Bugg, D.V., Case, T., Crede, V., Crowe, K.M., Doser, M., Dunnweber, W., Engelhardt, D., Faessler, M.A., Haddock, R.P., Heinsius, F.H., Heinzelmann, M., Hessey, N.P., Hidas, P., Jamnik, D., Kalinowsky, H., Kammel, P., Kisiel, J., Klempt, E., Koch, H., Kunze, M., Kurilla, U., Landua, R., Matthay, H., Meyer, C.A., Meyer-Wildhagen, F., Montanet, L., Ouared, R., Peters, K., Pick, B., Popkov, W., Ratajczak, M., Regenfus, Christian, Reinnarth, J., Roethel, W., Sarantsev, A.V., Spanier, S., Strohbusch, U., Suffert, M., Suh, J.S., Thoma, U., Uman, I., Wallis-Plachner, S., Walther, D., Wiedner, U., Wittmack, K., Zou, B.S.
Lenguaje:eng
Publicado: 2003
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/S0375-9474(03)00912-6
http://cds.cern.ch/record/912033
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author Amsler, C
Anisovich, A.V.
Baker, C.A.
Barnett, B.M.
Batty, C.J.
Benayoun, M.
Blum, P.
Braune, K.
Bugg, D.V.
Case, T.
Crede, V.
Crowe, K.M.
Doser, M.
Dunnweber, W.
Engelhardt, D.
Faessler, M.A.
Haddock, R.P.
Heinsius, F.H.
Heinzelmann, M.
Hessey, N.P.
Hidas, P.
Jamnik, D.
Kalinowsky, H.
Kammel, P.
Kisiel, J.
Klempt, E.
Koch, H.
Kunze, M.
Kurilla, U.
Landua, R.
Matthay, H.
Meyer, C.A.
Meyer-Wildhagen, F.
Montanet, L.
Ouared, R.
Peters, K.
Pick, B.
Popkov, W.
Ratajczak, M.
Regenfus, Christian
Reinnarth, J.
Roethel, W.
Sarantsev, A.V.
Spanier, S.
Strohbusch, U.
Suffert, M.
Suh, J.S.
Thoma, U.
Uman, I.
Wallis-Plachner, S.
Walther, D.
Wiedner, U.
Wittmack, K.
Zou, B.S.
author_facet Amsler, C
Anisovich, A.V.
Baker, C.A.
Barnett, B.M.
Batty, C.J.
Benayoun, M.
Blum, P.
Braune, K.
Bugg, D.V.
Case, T.
Crede, V.
Crowe, K.M.
Doser, M.
Dunnweber, W.
Engelhardt, D.
Faessler, M.A.
Haddock, R.P.
Heinsius, F.H.
Heinzelmann, M.
Hessey, N.P.
Hidas, P.
Jamnik, D.
Kalinowsky, H.
Kammel, P.
Kisiel, J.
Klempt, E.
Koch, H.
Kunze, M.
Kurilla, U.
Landua, R.
Matthay, H.
Meyer, C.A.
Meyer-Wildhagen, F.
Montanet, L.
Ouared, R.
Peters, K.
Pick, B.
Popkov, W.
Ratajczak, M.
Regenfus, Christian
Reinnarth, J.
Roethel, W.
Sarantsev, A.V.
Spanier, S.
Strohbusch, U.
Suffert, M.
Suh, J.S.
Thoma, U.
Uman, I.
Wallis-Plachner, S.
Walther, D.
Wiedner, U.
Wittmack, K.
Zou, B.S.
author_sort Amsler, C
collection CERN
description Annihilation of antiprotons and protons at rest into neutral particles has been studied with the Crystal Barrel detector at LEAR. Annihilation frequencies are determined for final states containing π 0 , η , η ′ and ω mesons using a liquid and a room temperature, 12 bar, gaseous hydrogen target. Including annihilation frequencies for production of neutral kaons from other experiments, the identified reactions for annihilation in liquid hydrogen add up to a branching fraction of (3.56±0.28)% per annihilation compared to the frequency of (3.50±0.30)% with which we observe the all-neutral decay modes inclusively. Since the exclusive final states are normalized to the Crystal Barrel measurement of the π 0 π 0 branching ratio, the latter result is strongly supported by this present study.
id cern-912033
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
record_format invenio
spelling cern-9120332019-09-30T06:29:59Zdoi:10.1016/S0375-9474(03)00912-6http://cds.cern.ch/record/912033engAmsler, CAnisovich, A.V.Baker, C.A.Barnett, B.M.Batty, C.J.Benayoun, M.Blum, P.Braune, K.Bugg, D.V.Case, T.Crede, V.Crowe, K.M.Doser, M.Dunnweber, W.Engelhardt, D.Faessler, M.A.Haddock, R.P.Heinsius, F.H.Heinzelmann, M.Hessey, N.P.Hidas, P.Jamnik, D.Kalinowsky, H.Kammel, P.Kisiel, J.Klempt, E.Koch, H.Kunze, M.Kurilla, U.Landua, R.Matthay, H.Meyer, C.A.Meyer-Wildhagen, F.Montanet, L.Ouared, R.Peters, K.Pick, B.Popkov, W.Ratajczak, M.Regenfus, ChristianReinnarth, J.Roethel, W.Sarantsev, A.V.Spanier, S.Strohbusch, U.Suffert, M.Suh, J.S.Thoma, U.Uman, I.Wallis-Plachner, S.Walther, D.Wiedner, U.Wittmack, K.Zou, B.S.Annihilation at rest of antiprotons and protons into neutral particlesParticle Physics - ExperimentAnnihilation of antiprotons and protons at rest into neutral particles has been studied with the Crystal Barrel detector at LEAR. Annihilation frequencies are determined for final states containing π 0 , η , η ′ and ω mesons using a liquid and a room temperature, 12 bar, gaseous hydrogen target. Including annihilation frequencies for production of neutral kaons from other experiments, the identified reactions for annihilation in liquid hydrogen add up to a branching fraction of (3.56±0.28)% per annihilation compared to the frequency of (3.50±0.30)% with which we observe the all-neutral decay modes inclusively. Since the exclusive final states are normalized to the Crystal Barrel measurement of the π 0 π 0 branching ratio, the latter result is strongly supported by this present study.oai:cds.cern.ch:9120332003
spellingShingle Particle Physics - Experiment
Amsler, C
Anisovich, A.V.
Baker, C.A.
Barnett, B.M.
Batty, C.J.
Benayoun, M.
Blum, P.
Braune, K.
Bugg, D.V.
Case, T.
Crede, V.
Crowe, K.M.
Doser, M.
Dunnweber, W.
Engelhardt, D.
Faessler, M.A.
Haddock, R.P.
Heinsius, F.H.
Heinzelmann, M.
Hessey, N.P.
Hidas, P.
Jamnik, D.
Kalinowsky, H.
Kammel, P.
Kisiel, J.
Klempt, E.
Koch, H.
Kunze, M.
Kurilla, U.
Landua, R.
Matthay, H.
Meyer, C.A.
Meyer-Wildhagen, F.
Montanet, L.
Ouared, R.
Peters, K.
Pick, B.
Popkov, W.
Ratajczak, M.
Regenfus, Christian
Reinnarth, J.
Roethel, W.
Sarantsev, A.V.
Spanier, S.
Strohbusch, U.
Suffert, M.
Suh, J.S.
Thoma, U.
Uman, I.
Wallis-Plachner, S.
Walther, D.
Wiedner, U.
Wittmack, K.
Zou, B.S.
Annihilation at rest of antiprotons and protons into neutral particles
title Annihilation at rest of antiprotons and protons into neutral particles
title_full Annihilation at rest of antiprotons and protons into neutral particles
title_fullStr Annihilation at rest of antiprotons and protons into neutral particles
title_full_unstemmed Annihilation at rest of antiprotons and protons into neutral particles
title_short Annihilation at rest of antiprotons and protons into neutral particles
title_sort annihilation at rest of antiprotons and protons into neutral particles
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/S0375-9474(03)00912-6
http://cds.cern.ch/record/912033
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