Studies on the atomic capture of stopped negative pions in binary mixtures of ^3He with other gases
Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there...
Ausführliche Beschreibung
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1983 |
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Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
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in: Nuclear Physics, Section A - Amsterdam : Elsevier, 403(1983), 3, Seite 515-524 |
Übergeordnetes Werk: |
volume:403 ; year:1983 ; number:3 ; pages:515-524 |
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520 | |a Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. | ||
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700 | 1 | |a Petrukhin, V.I. |4 oth | |
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700 | 1 | |a Markov, A.A. |4 oth | |
700 | 1 | |a Medvedev, V.I. |4 oth | |
700 | 1 | |a Sokolov, G.L. |4 oth | |
700 | 1 | |a Strakovsky, I.I. |4 oth | |
700 | 1 | |a Horvath, D. |4 oth | |
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(DE-627)NLEJ181291142 (DE-599)GBVNLZ181291142 DE-627 ger DE-627 rakwb eng Studies on the atomic capture of stopped negative pions in binary mixtures of ^3He with other gases 1983 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bannikov, A.V. oth Levay, B. oth Petrukhin, V.I. oth Vasilyev, V.A. oth Kochenda, L.M. oth Markov, A.A. oth Medvedev, V.I. oth Sokolov, G.L. oth Strakovsky, I.I. oth Horvath, D. oth in Nuclear Physics, Section A Amsterdam : Elsevier 403(1983), 3, Seite 515-524 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:403 year:1983 number:3 pages:515-524 http://linkinghub.elsevier.com/retrieve/pii/0375-9474(83)90620-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 403 1983 3 515-524 |
spelling |
(DE-627)NLEJ181291142 (DE-599)GBVNLZ181291142 DE-627 ger DE-627 rakwb eng Studies on the atomic capture of stopped negative pions in binary mixtures of ^3He with other gases 1983 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bannikov, A.V. oth Levay, B. oth Petrukhin, V.I. oth Vasilyev, V.A. oth Kochenda, L.M. oth Markov, A.A. oth Medvedev, V.I. oth Sokolov, G.L. oth Strakovsky, I.I. oth Horvath, D. oth in Nuclear Physics, Section A Amsterdam : Elsevier 403(1983), 3, Seite 515-524 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:403 year:1983 number:3 pages:515-524 http://linkinghub.elsevier.com/retrieve/pii/0375-9474(83)90620-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 403 1983 3 515-524 |
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(DE-627)NLEJ181291142 (DE-599)GBVNLZ181291142 DE-627 ger DE-627 rakwb eng Studies on the atomic capture of stopped negative pions in binary mixtures of ^3He with other gases 1983 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bannikov, A.V. oth Levay, B. oth Petrukhin, V.I. oth Vasilyev, V.A. oth Kochenda, L.M. oth Markov, A.A. oth Medvedev, V.I. oth Sokolov, G.L. oth Strakovsky, I.I. oth Horvath, D. oth in Nuclear Physics, Section A Amsterdam : Elsevier 403(1983), 3, Seite 515-524 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:403 year:1983 number:3 pages:515-524 http://linkinghub.elsevier.com/retrieve/pii/0375-9474(83)90620-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 403 1983 3 515-524 |
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(DE-627)NLEJ181291142 (DE-599)GBVNLZ181291142 DE-627 ger DE-627 rakwb eng Studies on the atomic capture of stopped negative pions in binary mixtures of ^3He with other gases 1983 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bannikov, A.V. oth Levay, B. oth Petrukhin, V.I. oth Vasilyev, V.A. oth Kochenda, L.M. oth Markov, A.A. oth Medvedev, V.I. oth Sokolov, G.L. oth Strakovsky, I.I. oth Horvath, D. oth in Nuclear Physics, Section A Amsterdam : Elsevier 403(1983), 3, Seite 515-524 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:403 year:1983 number:3 pages:515-524 http://linkinghub.elsevier.com/retrieve/pii/0375-9474(83)90620-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 403 1983 3 515-524 |
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(DE-627)NLEJ181291142 (DE-599)GBVNLZ181291142 DE-627 ger DE-627 rakwb eng Studies on the atomic capture of stopped negative pions in binary mixtures of ^3He with other gases 1983 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bannikov, A.V. oth Levay, B. oth Petrukhin, V.I. oth Vasilyev, V.A. oth Kochenda, L.M. oth Markov, A.A. oth Medvedev, V.I. oth Sokolov, G.L. oth Strakovsky, I.I. oth Horvath, D. oth in Nuclear Physics, Section A Amsterdam : Elsevier 403(1983), 3, Seite 515-524 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:403 year:1983 number:3 pages:515-524 http://linkinghub.elsevier.com/retrieve/pii/0375-9474(83)90620-6 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 403 1983 3 515-524 |
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studies on the atomic capture of stopped negative pions in binary mixtures of ^3he with other gases |
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Studies on the atomic capture of stopped negative pions in binary mixtures of ^3He with other gases |
abstract |
Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. |
abstractGer |
Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. |
abstract_unstemmed |
Systematic experimental study has been carried out on the atomic capture of negative pions by ^3He in binary gas mixtures of ^3He + Z, where Z is Ne, Ar, Kr, Xe, N"2, O"2, CO"2 and sf"6. The results are analysed in the framework of a phenomenological model. It is shown that there is no pion transfer from the ^3Heπ^- mesic atoms to the heavier Z-atoms. The probabilities of pion capture in the various atoms of the mixtures are found to be proportional to the atomic concentrations, thereby excluding the possibility of a concentration dependence in the atomic capture ratio A(Z/^3He). In contradiction to previous assumptions the probability of pion capture into an atomic orbit is not proportional to the stopping power of the components of the mixture. The atomic capture ratio of pions in a ^3He + ^4He mixture is A(^4He/^3He) = 0.75 +/- 0.13, which might be the indication of an isotopic effect. The branching ratio for the charge-exchange reaction at rest (π^- + ^3He -> π^0 + ^3H) is found to be 0.128 +/- 0.012. |
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Bannikov, A.V. Levay, B. Petrukhin, V.I. Vasilyev, V.A. Kochenda, L.M. Markov, A.A. Medvedev, V.I. Sokolov, G.L. Strakovsky, I.I. Horvath, D. |
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