First $\pi K$ atom lifetime and $\pi K$ scattering length measurements

The results of a search for hydrogen-like atoms consisting of $\pi^{\mp}K^{\pm}$ mesons are presented. Evidence for $\pi K$ atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic $\pi K$ pairs from their breakup in the same target...

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Detalles Bibliográficos
Autores principales: Adeva, B., Afanasyev, L., Allkofer, Y., Amsler, C., Anania, A., Aogaki, S., Benelli, A., Brekhovskikh, V., Cechak, T., Chiba, M., Chliapnikov, P., Ciocarlan, C., Constantinescu, S., Doskarova, P., Drijard, D., Dudarev, A., Duma, M., Dumitriu, D., Fluerasu, D., Gorin, A., Gorchakov, O., Gritsay, K., Guaraldo, C., Gugiu, M., Hansroul, M., Hons, Z., Horikawa, S., Iwashita, Y., Karpukhin, V., Kluson, J., Kobayashi, M., Kruglov, V., Kruglova, L., Kulikov, A., Kulish, E., Kuptsov, A., Lamberto, A., Lanaro, A., Lednicky, R., Marinas, C., Martincik, J., Nemenov, L., Nikitin, M., Okada, K., Olchevskii, V., Pentia, M., Penzo, A., Plo, M., Ponta, T., Prusa, P., Rappazzo, G., Romero Vidal, A., Ryazantsev, A., Rykalin, V., Schacher, J., Sidorov, A., Smolik, J., Sugimoto, S., Takeutchi, F., Tauscher, L., Trojek, T., Trusov, S., Urban, T., Vrba, T., Yazkov, V., Yoshimura, Y., Zhabitsky, M., Zrelov, P.
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2014.06.043
http://cds.cern.ch/record/1648659
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author Adeva, B.
Afanasyev, L.
Allkofer, Y.
Amsler, C.
Anania, A.
Aogaki, S.
Benelli, A.
Brekhovskikh, V.
Cechak, T.
Chiba, M.
Chliapnikov, P.
Ciocarlan, C.
Constantinescu, S.
Doskarova, P.
Drijard, D.
Dudarev, A.
Duma, M.
Dumitriu, D.
Fluerasu, D.
Gorin, A.
Gorchakov, O.
Gritsay, K.
Guaraldo, C.
Gugiu, M.
Hansroul, M.
Hons, Z.
Horikawa, S.
Iwashita, Y.
Karpukhin, V.
Kluson, J.
Kobayashi, M.
Kruglov, V.
Kruglova, L.
Kulikov, A.
Kulish, E.
Kuptsov, A.
Lamberto, A.
Lanaro, A.
Lednicky, R.
Marinas, C.
Martincik, J.
Nemenov, L.
Nikitin, M.
Okada, K.
Olchevskii, V.
Pentia, M.
Penzo, A.
Plo, M.
Ponta, T.
Prusa, P.
Rappazzo, G.
Romero Vidal, A.
Ryazantsev, A.
Rykalin, V.
Schacher, J.
Sidorov, A.
Smolik, J.
Sugimoto, S.
Takeutchi, F.
Tauscher, L.
Trojek, T.
Trusov, S.
Urban, T.
Vrba, T.
Yazkov, V.
Yoshimura, Y.
Zhabitsky, M.
Zrelov, P.
author_facet Adeva, B.
Afanasyev, L.
Allkofer, Y.
Amsler, C.
Anania, A.
Aogaki, S.
Benelli, A.
Brekhovskikh, V.
Cechak, T.
Chiba, M.
Chliapnikov, P.
Ciocarlan, C.
Constantinescu, S.
Doskarova, P.
Drijard, D.
Dudarev, A.
Duma, M.
Dumitriu, D.
Fluerasu, D.
Gorin, A.
Gorchakov, O.
Gritsay, K.
Guaraldo, C.
Gugiu, M.
Hansroul, M.
Hons, Z.
Horikawa, S.
Iwashita, Y.
Karpukhin, V.
Kluson, J.
Kobayashi, M.
Kruglov, V.
Kruglova, L.
Kulikov, A.
Kulish, E.
Kuptsov, A.
Lamberto, A.
Lanaro, A.
Lednicky, R.
Marinas, C.
Martincik, J.
Nemenov, L.
Nikitin, M.
Okada, K.
Olchevskii, V.
Pentia, M.
Penzo, A.
Plo, M.
Ponta, T.
Prusa, P.
Rappazzo, G.
Romero Vidal, A.
Ryazantsev, A.
Rykalin, V.
Schacher, J.
Sidorov, A.
Smolik, J.
Sugimoto, S.
Takeutchi, F.
Tauscher, L.
Trojek, T.
Trusov, S.
Urban, T.
Vrba, T.
Yazkov, V.
Yoshimura, Y.
Zhabitsky, M.
Zrelov, P.
author_sort Adeva, B.
collection CERN
description The results of a search for hydrogen-like atoms consisting of $\pi^{\mp}K^{\pm}$ mesons are presented. Evidence for $\pi K$ atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic $\pi K$ pairs from their breakup in the same target ($178 \pm 49$) and from Coulomb final state interaction ($653 \pm 42$). Using these results the analysis yields a first value for the $\pi K$ atom lifetime of $\tau=(2.5_{-1.8}^{+3.0})$ fs and a first model-independent measurement of the S-wave isospin-odd $\pi K$ scattering length $\left|a_0^-\right|=\frac{1}{3}\left|a_{1/2}-a_{3/2}\right|= \left( 0.11_{-0.04}^{+0.09} \right)M_{\pi}^{-1}$ ($a_I$ for isospin $I$).
id cern-1648659
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-16486592023-03-14T16:33:51Zdoi:10.1016/j.physletb.2014.06.043http://cds.cern.ch/record/1648659engAdeva, B.Afanasyev, L.Allkofer, Y.Amsler, C.Anania, A.Aogaki, S.Benelli, A.Brekhovskikh, V.Cechak, T.Chiba, M.Chliapnikov, P.Ciocarlan, C.Constantinescu, S.Doskarova, P.Drijard, D.Dudarev, A.Duma, M.Dumitriu, D.Fluerasu, D.Gorin, A.Gorchakov, O.Gritsay, K.Guaraldo, C.Gugiu, M.Hansroul, M.Hons, Z.Horikawa, S.Iwashita, Y.Karpukhin, V.Kluson, J.Kobayashi, M.Kruglov, V.Kruglova, L.Kulikov, A.Kulish, E.Kuptsov, A.Lamberto, A.Lanaro, A.Lednicky, R.Marinas, C.Martincik, J.Nemenov, L.Nikitin, M.Okada, K.Olchevskii, V.Pentia, M.Penzo, A.Plo, M.Ponta, T.Prusa, P.Rappazzo, G.Romero Vidal, A.Ryazantsev, A.Rykalin, V.Schacher, J.Sidorov, A.Smolik, J.Sugimoto, S.Takeutchi, F.Tauscher, L.Trojek, T.Trusov, S.Urban, T.Vrba, T.Yazkov, V.Yoshimura, Y.Zhabitsky, M.Zrelov, P.First $\pi K$ atom lifetime and $\pi K$ scattering length measurementsParticle Physics - ExperimentNuclear Physics - ExperimentThe results of a search for hydrogen-like atoms consisting of $\pi^{\mp}K^{\pm}$ mesons are presented. Evidence for $\pi K$ atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic $\pi K$ pairs from their breakup in the same target ($178 \pm 49$) and from Coulomb final state interaction ($653 \pm 42$). Using these results the analysis yields a first value for the $\pi K$ atom lifetime of $\tau=(2.5_{-1.8}^{+3.0})$ fs and a first model-independent measurement of the S-wave isospin-odd $\pi K$ scattering length $\left|a_0^-\right|=\frac{1}{3}\left|a_{1/2}-a_{3/2}\right|= \left( 0.11_{-0.04}^{+0.09} \right)M_{\pi}^{-1}$ ($a_I$ for isospin $I$).The results of a search for hydrogen-like atoms consisting of $\pi^{\mp}K^{\pm}$ mesons are presented. Evidence for $\pi K$ atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic $\pi K$ pairs from their breakup in the same target (178±49) as well as in terms of produced πK atoms ( 653±42 ). Using these results, the analysis yields a first value for the πK atom lifetime of $\tau=(2.5_{-1.8}^{+3.0})$ fs and a first measurement of the S-wave isospin-odd $\pi K$ scattering length $\left|a_0^-\right|=\frac{1}{3}\left|a_{1/2}-a_{3/2}\right|= \left(0.11_{-0.04}^{+0.09} \right)M_{\pi}^{-1}$ ($a_I$ for isospin $I$).The results of a search for hydrogen-like atoms consisting of $\pi^{\mp}K^{\pm}$ mesons are presented. Evidence for $\pi K$ atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic $\pi K$ pairs from their breakup in the same target ($178 \pm 49$) and from Coulomb final state interaction ($653 \pm 42$). Using these results the analysis yields a first value for the $\pi K$ atom lifetime of $\tau=(2.5_{-1.8}^{+3.0})$ fs and a first model-independent measurement of the S-wave isospin-odd $\pi K$ scattering length $\left|a_0^-\right|=\frac{1}{3}\left|a_{1/2}-a_{3/2}\right|= \left(0.11_{-0.04}^{+0.09} \right)M_{\pi}^{-1}$ ($a_I$ for isospin $I$).arXiv:1403.0845CERN-PH-EP-2014-030DIRAC-PUB-2014-01CERN-PH-EP-2014-030oai:cds.cern.ch:16486592014-02-17
spellingShingle Particle Physics - Experiment
Nuclear Physics - Experiment
Adeva, B.
Afanasyev, L.
Allkofer, Y.
Amsler, C.
Anania, A.
Aogaki, S.
Benelli, A.
Brekhovskikh, V.
Cechak, T.
Chiba, M.
Chliapnikov, P.
Ciocarlan, C.
Constantinescu, S.
Doskarova, P.
Drijard, D.
Dudarev, A.
Duma, M.
Dumitriu, D.
Fluerasu, D.
Gorin, A.
Gorchakov, O.
Gritsay, K.
Guaraldo, C.
Gugiu, M.
Hansroul, M.
Hons, Z.
Horikawa, S.
Iwashita, Y.
Karpukhin, V.
Kluson, J.
Kobayashi, M.
Kruglov, V.
Kruglova, L.
Kulikov, A.
Kulish, E.
Kuptsov, A.
Lamberto, A.
Lanaro, A.
Lednicky, R.
Marinas, C.
Martincik, J.
Nemenov, L.
Nikitin, M.
Okada, K.
Olchevskii, V.
Pentia, M.
Penzo, A.
Plo, M.
Ponta, T.
Prusa, P.
Rappazzo, G.
Romero Vidal, A.
Ryazantsev, A.
Rykalin, V.
Schacher, J.
Sidorov, A.
Smolik, J.
Sugimoto, S.
Takeutchi, F.
Tauscher, L.
Trojek, T.
Trusov, S.
Urban, T.
Vrba, T.
Yazkov, V.
Yoshimura, Y.
Zhabitsky, M.
Zrelov, P.
First $\pi K$ atom lifetime and $\pi K$ scattering length measurements
title First $\pi K$ atom lifetime and $\pi K$ scattering length measurements
title_full First $\pi K$ atom lifetime and $\pi K$ scattering length measurements
title_fullStr First $\pi K$ atom lifetime and $\pi K$ scattering length measurements
title_full_unstemmed First $\pi K$ atom lifetime and $\pi K$ scattering length measurements
title_short First $\pi K$ atom lifetime and $\pi K$ scattering length measurements
title_sort first $\pi k$ atom lifetime and $\pi k$ scattering length measurements
topic Particle Physics - Experiment
Nuclear Physics - Experiment
url https://dx.doi.org/10.1016/j.physletb.2014.06.043
http://cds.cern.ch/record/1648659
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