First measurement of the $\pi^+\pi^-$ atom lifetime

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The goal of the DIRAC experiment at CERN (PS212) is to measure the $\pi^+\pi^-$ atom lifetime with 10% precision. Such a measurement would yield a precision of 5% on the value of the $S$-wave $\pi\pi$ scattering lengths combination $|a_0-a_2|$. Based on part of the collected data we present a first...

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Autores principales: Adeva, B., Afanasyev, L., Benayoun, M., Benelli, A., Berka, Z., Brekhovskikh, V., Caragheorgheopol, G., Cechak, T., Chiba, M., Constantinescu, S., Detraz, C., Dreossi, D., Drijard, D., Dudarev, A., Evangelou, I., Ferro-Luzzi, M., Gallas, M.V., Gerndt, J., Giacomich, R., Gianotti, P., Goldin, D., Gomez, F., Gorin, A., Gorchakov, O., Guaraldo, C., Hansroul, M., Hosek, R., Iliescu, M., Karpukhin, V., Kluson, J., Kobayashi, M., Kokkas, P., Komarov, V., Kruglova, L., Kulikov, A., Kuptsov, A., Kurochkin, I., Kuroda, K.-I., Lamberto, A., Lanaro, A., Lapshin, V., Lednicky, R., Leruste, P., Sandri, Levi, Lopez Aguera, A., Lucherini, V., Maki, T., Manthos, N., Manuilov, I., Montanet, L., Narjoux, J.-L., Nemenov, L., Nikitin, M., Nunez Pardo, T., Okada, K., Olchevskii, V., Pazos, A., Pentia, M., Penzo, A., Perreau, J.-M., Petrascu, C., Plo, M., Ponta, T., Pop, D., Rappazzo, G.F., Rodriguez Fernandez, A., Romero, A., Ryazantsev, A., Rykalin, V., Santamarina, C., Saborido, J., Schacher, J., Schuetz, Ch.P., Sidorov, A., Smolik, J., Takeutchi, F., Tarasov, A., Tauscher, L., Tobar, M.J., Trusov, Sergey V., Utkin, V., Vazquez Doce, O., Vazquez, P., Vlachos, S., Yazkov, V., Yoshimura, Y., Zhabitsky, M., Zrelov, P.
Lenguaje:eng
Publicado: 2005
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2005.05.045
http://cds.cern.ch/record/834111
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author Adeva, B.
Afanasyev, L.
Benayoun, M.
Benelli, A.
Berka, Z.
Brekhovskikh, V.
Caragheorgheopol, G.
Cechak, T.
Chiba, M.
Constantinescu, S.
Detraz, C.
Dreossi, D.
Drijard, D.
Dudarev, A.
Evangelou, I.
Ferro-Luzzi, M.
Gallas, M.V.
Gerndt, J.
Giacomich, R.
Gianotti, P.
Goldin, D.
Gomez, F.
Gorin, A.
Gorchakov, O.
Guaraldo, C.
Hansroul, M.
Hosek, R.
Iliescu, M.
Karpukhin, V.
Kluson, J.
Kobayashi, M.
Kokkas, P.
Komarov, V.
Kruglova, L.
Kulikov, A.
Kuptsov, A.
Kurochkin, I.
Kuroda, K.-I.
Lamberto, A.
Lanaro, A.
Lapshin, V.
Lednicky, R.
Leruste, P.
Sandri, Levi
Lopez Aguera, A.
Lucherini, V.
Maki, T.
Manthos, N.
Manuilov, I.
Montanet, L.
Narjoux, J.-L.
Nemenov, L.
Nikitin, M.
Nunez Pardo, T.
Okada, K.
Olchevskii, V.
Pazos, A.
Pentia, M.
Penzo, A.
Perreau, J.-M.
Petrascu, C.
Plo, M.
Ponta, T.
Pop, D.
Rappazzo, G.F.
Rodriguez Fernandez, A.
Romero, A.
Ryazantsev, A.
Rykalin, V.
Santamarina, C.
Saborido, J.
Schacher, J.
Schuetz, Ch.P.
Sidorov, A.
Smolik, J.
Takeutchi, F.
Tarasov, A.
Tauscher, L.
Tobar, M.J.
Trusov, Sergey V.
Utkin, V.
Vazquez Doce, O.
Vazquez, P.
Vlachos, S.
Yazkov, V.
Yoshimura, Y.
Zhabitsky, M.
Zrelov, P.
author_facet Adeva, B.
Afanasyev, L.
Benayoun, M.
Benelli, A.
Berka, Z.
Brekhovskikh, V.
Caragheorgheopol, G.
Cechak, T.
Chiba, M.
Constantinescu, S.
Detraz, C.
Dreossi, D.
Drijard, D.
Dudarev, A.
Evangelou, I.
Ferro-Luzzi, M.
Gallas, M.V.
Gerndt, J.
Giacomich, R.
Gianotti, P.
Goldin, D.
Gomez, F.
Gorin, A.
Gorchakov, O.
Guaraldo, C.
Hansroul, M.
Hosek, R.
Iliescu, M.
Karpukhin, V.
Kluson, J.
Kobayashi, M.
Kokkas, P.
Komarov, V.
Kruglova, L.
Kulikov, A.
Kuptsov, A.
Kurochkin, I.
Kuroda, K.-I.
Lamberto, A.
Lanaro, A.
Lapshin, V.
Lednicky, R.
Leruste, P.
Sandri, Levi
Lopez Aguera, A.
Lucherini, V.
Maki, T.
Manthos, N.
Manuilov, I.
Montanet, L.
Narjoux, J.-L.
Nemenov, L.
Nikitin, M.
Nunez Pardo, T.
Okada, K.
Olchevskii, V.
Pazos, A.
Pentia, M.
Penzo, A.
Perreau, J.-M.
Petrascu, C.
Plo, M.
Ponta, T.
Pop, D.
Rappazzo, G.F.
Rodriguez Fernandez, A.
Romero, A.
Ryazantsev, A.
Rykalin, V.
Santamarina, C.
Saborido, J.
Schacher, J.
Schuetz, Ch.P.
Sidorov, A.
Smolik, J.
Takeutchi, F.
Tarasov, A.
Tauscher, L.
Tobar, M.J.
Trusov, Sergey V.
Utkin, V.
Vazquez Doce, O.
Vazquez, P.
Vlachos, S.
Yazkov, V.
Yoshimura, Y.
Zhabitsky, M.
Zrelov, P.
author_sort Adeva, B.
collection CERN
description The goal of the DIRAC experiment at CERN (PS212) is to measure the $\pi^+\pi^-$ atom lifetime with 10% precision. Such a measurement would yield a precision of 5% on the value of the $S$-wave $\pi\pi$ scattering lengths combination $|a_0-a_2|$. Based on part of the collected data we present a first result on the lifetime, $\tau=[2.91 ^{+0.49}_{-0.62}]\times 10^{-15}$ s, and discuss the major systematic errors. This lifetime corresponds to $|a_0-a_2|=0.264 ^{+0.033}_{-0.020} m_{\pi}^{-1}$.
id cern-834111
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
record_format invenio
spelling cern-8341112022-04-07T02:31:49Zdoi:10.1016/j.physletb.2005.05.045http://cds.cern.ch/record/834111engAdeva, B.Afanasyev, L.Benayoun, M.Benelli, A.Berka, Z.Brekhovskikh, V.Caragheorgheopol, G.Cechak, T.Chiba, M.Constantinescu, S.Detraz, C.Dreossi, D.Drijard, D.Dudarev, A.Evangelou, I.Ferro-Luzzi, M.Gallas, M.V.Gerndt, J.Giacomich, R.Gianotti, P.Goldin, D.Gomez, F.Gorin, A.Gorchakov, O.Guaraldo, C.Hansroul, M.Hosek, R.Iliescu, M.Karpukhin, V.Kluson, J.Kobayashi, M.Kokkas, P.Komarov, V.Kruglova, L.Kulikov, A.Kuptsov, A.Kurochkin, I.Kuroda, K.-I.Lamberto, A.Lanaro, A.Lapshin, V.Lednicky, R.Leruste, P.Sandri, LeviLopez Aguera, A.Lucherini, V.Maki, T.Manthos, N.Manuilov, I.Montanet, L.Narjoux, J.-L.Nemenov, L.Nikitin, M.Nunez Pardo, T.Okada, K.Olchevskii, V.Pazos, A.Pentia, M.Penzo, A.Perreau, J.-M.Petrascu, C.Plo, M.Ponta, T.Pop, D.Rappazzo, G.F.Rodriguez Fernandez, A.Romero, A.Ryazantsev, A.Rykalin, V.Santamarina, C.Saborido, J.Schacher, J.Schuetz, Ch.P.Sidorov, A.Smolik, J.Takeutchi, F.Tarasov, A.Tauscher, L.Tobar, M.J.Trusov, Sergey V.Utkin, V.Vazquez Doce, O.Vazquez, P.Vlachos, S.Yazkov, V.Yoshimura, Y.Zhabitsky, M.Zrelov, P.First measurement of the $\pi^+\pi^-$ atom lifetimeParticle Physics - ExperimentThe goal of the DIRAC experiment at CERN (PS212) is to measure the $\pi^+\pi^-$ atom lifetime with 10% precision. Such a measurement would yield a precision of 5% on the value of the $S$-wave $\pi\pi$ scattering lengths combination $|a_0-a_2|$. Based on part of the collected data we present a first result on the lifetime, $\tau=[2.91 ^{+0.49}_{-0.62}]\times 10^{-15}$ s, and discuss the major systematic errors. This lifetime corresponds to $|a_0-a_2|=0.264 ^{+0.033}_{-0.020} m_{\pi}^{-1}$.The goal of the DIRAC experiment at CERN (PS212) is to measure the π+π− atom lifetime with 10% precision. Such a measurement would yield a precision of 5% on the value of the S -wave ππ scattering lengths combination |a0−a2| . Based on part of the collected data we present a first result on the lifetime, τ=[2.91−0.62+0.49]×10−15 s, and discuss the major systematic errors. This lifetime corresponds to |a0−a2|=0.264−0.020+0.033mπ−1 .The goal of the DIRAC experiment at CERN (PS212) is to measure the $\pi^+\pi^-$ atom lifetime with 10% precision. Such a measurement would yield a precision of 5% on the value of the $S$-wave $\pi\pi$ scattering lengths combination $|a_0-a_2|$. Based on part of the collected data we present a first result on the lifetime, $\tau=[2.91 ^{+0.49}_{-0.62}]\times 10^{-15}$ s, and discuss the major systematic errors. This lifetime corresponds to $|a_0-a_2|=0.264 ^{+0.033}_{-0.020} m_{\pi}^{-1}$.hep-ex/0504044DIRAC-PUB-2005-01oai:cds.cern.ch:8341112005-04-26
spellingShingle Particle Physics - Experiment
Adeva, B.
Afanasyev, L.
Benayoun, M.
Benelli, A.
Berka, Z.
Brekhovskikh, V.
Caragheorgheopol, G.
Cechak, T.
Chiba, M.
Constantinescu, S.
Detraz, C.
Dreossi, D.
Drijard, D.
Dudarev, A.
Evangelou, I.
Ferro-Luzzi, M.
Gallas, M.V.
Gerndt, J.
Giacomich, R.
Gianotti, P.
Goldin, D.
Gomez, F.
Gorin, A.
Gorchakov, O.
Guaraldo, C.
Hansroul, M.
Hosek, R.
Iliescu, M.
Karpukhin, V.
Kluson, J.
Kobayashi, M.
Kokkas, P.
Komarov, V.
Kruglova, L.
Kulikov, A.
Kuptsov, A.
Kurochkin, I.
Kuroda, K.-I.
Lamberto, A.
Lanaro, A.
Lapshin, V.
Lednicky, R.
Leruste, P.
Sandri, Levi
Lopez Aguera, A.
Lucherini, V.
Maki, T.
Manthos, N.
Manuilov, I.
Montanet, L.
Narjoux, J.-L.
Nemenov, L.
Nikitin, M.
Nunez Pardo, T.
Okada, K.
Olchevskii, V.
Pazos, A.
Pentia, M.
Penzo, A.
Perreau, J.-M.
Petrascu, C.
Plo, M.
Ponta, T.
Pop, D.
Rappazzo, G.F.
Rodriguez Fernandez, A.
Romero, A.
Ryazantsev, A.
Rykalin, V.
Santamarina, C.
Saborido, J.
Schacher, J.
Schuetz, Ch.P.
Sidorov, A.
Smolik, J.
Takeutchi, F.
Tarasov, A.
Tauscher, L.
Tobar, M.J.
Trusov, Sergey V.
Utkin, V.
Vazquez Doce, O.
Vazquez, P.
Vlachos, S.
Yazkov, V.
Yoshimura, Y.
Zhabitsky, M.
Zrelov, P.
First measurement of the $\pi^+\pi^-$ atom lifetime
title First measurement of the $\pi^+\pi^-$ atom lifetime
title_full First measurement of the $\pi^+\pi^-$ atom lifetime
title_fullStr First measurement of the $\pi^+\pi^-$ atom lifetime
title_full_unstemmed First measurement of the $\pi^+\pi^-$ atom lifetime
title_short First measurement of the $\pi^+\pi^-$ atom lifetime
title_sort first measurement of the $\pi^+\pi^-$ atom lifetime
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/j.physletb.2005.05.045
http://cds.cern.ch/record/834111
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