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Title: Partial wave analysis of the reaction p(3.5 GeV) + p → pK+ Λ to search for the "ppK" bound state

Abstract

Employing the Bonn–Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction p(3.5GeV) + p → pK+Λ. This reaction might contain information about the kaonic cluster “ppK-” (with quantum numbers JP=0- and total isospin I =1/2) via its decay into pΛ. Due to interference effects in our coherent description of the data, a hypothetical K ¯NN (or, specifically “ppK-”) cluster signal need not necessarily show up as a pronounced feature (e.g. a peak) in an invariant mass spectrum like pΛ. Our PWA analysis includes a variety of resonant and non-resonant intermediate states and delivers a good description of our data (various angular distributions and two-hadron invariant mass spectra) without a contribution of a K ¯NN cluster. At a confidence level of CLs=95% such a cluster cannot contribute more than 2–12% to the total cross section with a pK+ Λ final state, which translates into a production cross-section between 0.7 μb and 4.2 μb, respectively. The range of the upper limit depends on the assumed cluster mass, width and production process.

Authors:
 [1];  [2];  [3];  [1];  [2];  [4];  [5];  [6];  [3];  [1];  [7];  [2];  [2];  [1];  [8];  [9];  [5];  [10];  [11];  [3] more »;  [5];  [10];  [12];  [13];  [12];  [11];  [14];  [6];  [14];  [1];  [15];  [12];  [5];  [16];  [12];  [14];  [14];  [14];  [13];  [17];  [18];  [18];  [5];  [19];  [20];  [18];  [5];  [12];  [1];  [2];  [2];  [21];  [4];  [10];  [5];  [4];  [10];  [20];  [10];  [10];  [2];  [17];  [10];  [7];  [22];  [14];  [10];  [14];  [7];  [6];  [12];  [10];  [12];  [7];  [23];  [14];  [5];  [18];  [24];  [20];  [10];  [25];  [14];  [10];  [10];  [18];  [14];  [26];  [27];  [18];  [5];  [16];  [17];  [14];  [1];  [28] « less
  1. Joint Institute of Nuclear Research, Dubna (Russia)
  2. Excellence Cluster 'Origin and Structure of the Universe', Garching (Germany); Technische Univ. Munchen, Garching (Germany)
  3. Univ. de Santiago de Compostela, Santiago de Compostela (Spain)
  4. LIP-Laboratorio de Instrumentacao e Fisica Experimental de Particulas, Coimbra (Portugal)
  5. Technische Univ. Munchen, Garching (Germany)
  6. Univ. Paris Sud, Orsay Cedex (France)
  7. Jagiellonian Univ. of Cracow, Krakow (Poland)
  8. Istituto Nazionale di Fisica Nucleare, Catania (Italy)
  9. LIP-Laboratorio de Instrumentacao e Fisica Experimental de Particulas, Coimbra (Portugal); ISEC Coimbra, Coimbra (Portugal)
  10. Goethe Univ., Frankfurt (Germany)
  11. Technische Univ. Darmstadt, Darmstadt (Germany); ExtreMe Matter Institute, EMMI, Darmstadt (Germany)
  12. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
  13. Technische Univ. Darmstadt, Darmstadt (Germany)
  14. GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany)
  15. Instituto Nazionale di Fisica Nucleare, Milano (Italy); Univ. di Milano, Milano (Italy)
  16. Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany); Technische Univ. Dresden, Dresden (Germany)
  17. Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany)
  18. Academy of Sciences of Czech Republic, Rez, (Czech Republic)
  19. Jagiellonian Univ. of Cracow, Krakow (Poland); Univ. Paris Sud, Orsay Cedex (France)
  20. Justus Liebig Univ. Giessen, Giessen (Germany)
  21. Institute of Theoretical and Experimental Physics, Moscow (Russia)
  22. Univ. of Cyprus, Nicosia (Cyprus); Frederick Univ., Nicosia (Cyprus)
  23. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  24. Univ. di Torino, Torino (Italy)
  25. Goethe Univ., Frankfurt (Germany); GSI Helmholtzzentrum fur Schwerionenforschung, GmbH, Darmstadt (Germany)
  26. Univ. of Cyprus, Nicosia (Cyprus)
  27. Joint of Nuclear Research, Dubna (Russia)
  28. Peterburg Nuclear Physics Institute, Gatchina (Russia)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1209926
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Volume: 742; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; kaonic nuclei; anti-kaon–nucleon physics; ppK−; low energy QCD; partial wave analysis

Citation Formats

Agakishiev, G., Arnold, O., Belver, D., Belyaev, A., Berger-Chen, J. C., Blanco, A., Böhmer, M., Boyard, J. L., Cabanelas, P., Chernenko, S., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Finocchiaro, P., Fonte, P., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Göbel, K., Golubeva, M., González-Díaz, D., Guber, F., Gumberidze, M., Heinz, T., Hennino, T., Holzmann, R., Ierusalimov, A., Iori, I., Ivashkin, A., Jurkovic, M., Kämpfer, B., Karavicheva, T., Koenig, I., Koenig, W., Kolb, B. W., Kornakov, G., Kotte, R., Krása, A., Krizek, F., Krücken, R., Kuc, H., Kühn, W., Kugler, A., Kunz, T., Kurepin, A., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Maier, L., Mangiarotti, A., Markert, J., Metag, V., Michel, J., Müntz, C., Münzer, R., Naumann, L., Pachmayer, Y. C., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Pietraszko, J., Przygoda, W., Ramstein, B., Reshetin, A., Rustamov, A., Sadovsky, A., Salabura, P., Schmah, A., Schwab, E., Siebenson, J., Sobolev, Yu. G., Spataro, S., Spruck, B., Ströbele, H., Stroth, J., Sturm, C., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Tsertos, H., Vasiliev, T., Wagner, V., Weber, M., Wendisch, C., Wüstenfeld, J., Yurevich, S., Zanevsky, Y., and Sarantsev, A. V.. Partial wave analysis of the reaction p(3.5 GeV) + p → pK+ Λ to search for the "ppK–" bound state. United States: N. p., 2015. Web. https://doi.org/10.1016/j.physletb.2015.01.032.
Agakishiev, G., Arnold, O., Belver, D., Belyaev, A., Berger-Chen, J. C., Blanco, A., Böhmer, M., Boyard, J. L., Cabanelas, P., Chernenko, S., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Finocchiaro, P., Fonte, P., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Göbel, K., Golubeva, M., González-Díaz, D., Guber, F., Gumberidze, M., Heinz, T., Hennino, T., Holzmann, R., Ierusalimov, A., Iori, I., Ivashkin, A., Jurkovic, M., Kämpfer, B., Karavicheva, T., Koenig, I., Koenig, W., Kolb, B. W., Kornakov, G., Kotte, R., Krása, A., Krizek, F., Krücken, R., Kuc, H., Kühn, W., Kugler, A., Kunz, T., Kurepin, A., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Maier, L., Mangiarotti, A., Markert, J., Metag, V., Michel, J., Müntz, C., Münzer, R., Naumann, L., Pachmayer, Y. C., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Pietraszko, J., Przygoda, W., Ramstein, B., Reshetin, A., Rustamov, A., Sadovsky, A., Salabura, P., Schmah, A., Schwab, E., Siebenson, J., Sobolev, Yu. G., Spataro, S., Spruck, B., Ströbele, H., Stroth, J., Sturm, C., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Tsertos, H., Vasiliev, T., Wagner, V., Weber, M., Wendisch, C., Wüstenfeld, J., Yurevich, S., Zanevsky, Y., & Sarantsev, A. V.. Partial wave analysis of the reaction p(3.5 GeV) + p → pK+ Λ to search for the "ppK–" bound state. United States. https://doi.org/10.1016/j.physletb.2015.01.032
Agakishiev, G., Arnold, O., Belver, D., Belyaev, A., Berger-Chen, J. C., Blanco, A., Böhmer, M., Boyard, J. L., Cabanelas, P., Chernenko, S., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Finocchiaro, P., Fonte, P., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Göbel, K., Golubeva, M., González-Díaz, D., Guber, F., Gumberidze, M., Heinz, T., Hennino, T., Holzmann, R., Ierusalimov, A., Iori, I., Ivashkin, A., Jurkovic, M., Kämpfer, B., Karavicheva, T., Koenig, I., Koenig, W., Kolb, B. W., Kornakov, G., Kotte, R., Krása, A., Krizek, F., Krücken, R., Kuc, H., Kühn, W., Kugler, A., Kunz, T., Kurepin, A., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Maier, L., Mangiarotti, A., Markert, J., Metag, V., Michel, J., Müntz, C., Münzer, R., Naumann, L., Pachmayer, Y. C., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Pietraszko, J., Przygoda, W., Ramstein, B., Reshetin, A., Rustamov, A., Sadovsky, A., Salabura, P., Schmah, A., Schwab, E., Siebenson, J., Sobolev, Yu. G., Spataro, S., Spruck, B., Ströbele, H., Stroth, J., Sturm, C., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Tsertos, H., Vasiliev, T., Wagner, V., Weber, M., Wendisch, C., Wüstenfeld, J., Yurevich, S., Zanevsky, Y., and Sarantsev, A. V.. Mon . "Partial wave analysis of the reaction p(3.5 GeV) + p → pK+ Λ to search for the "ppK–" bound state". United States. https://doi.org/10.1016/j.physletb.2015.01.032. https://www.osti.gov/servlets/purl/1209926.
@article{osti_1209926,
title = {Partial wave analysis of the reaction p(3.5 GeV) + p → pK+ Λ to search for the "ppK–" bound state},
author = {Agakishiev, G. and Arnold, O. and Belver, D. and Belyaev, A. and Berger-Chen, J. C. and Blanco, A. and Böhmer, M. and Boyard, J. L. and Cabanelas, P. and Chernenko, S. and Dybczak, A. and Epple, E. and Fabbietti, L. and Fateev, O. and Finocchiaro, P. and Fonte, P. and Friese, J. and Fröhlich, I. and Galatyuk, T. and Garzón, J. A. and Gernhäuser, R. and Göbel, K. and Golubeva, M. and González-Díaz, D. and Guber, F. and Gumberidze, M. and Heinz, T. and Hennino, T. and Holzmann, R. and Ierusalimov, A. and Iori, I. and Ivashkin, A. and Jurkovic, M. and Kämpfer, B. and Karavicheva, T. and Koenig, I. and Koenig, W. and Kolb, B. W. and Kornakov, G. and Kotte, R. and Krása, A. and Krizek, F. and Krücken, R. and Kuc, H. and Kühn, W. and Kugler, A. and Kunz, T. and Kurepin, A. and Ladygin, V. and Lalik, R. and Lapidus, K. and Lebedev, A. and Lopes, L. and Lorenz, M. and Maier, L. and Mangiarotti, A. and Markert, J. and Metag, V. and Michel, J. and Müntz, C. and Münzer, R. and Naumann, L. and Pachmayer, Y. C. and Palka, M. and Parpottas, Y. and Pechenov, V. and Pechenova, O. and Pietraszko, J. and Przygoda, W. and Ramstein, B. and Reshetin, A. and Rustamov, A. and Sadovsky, A. and Salabura, P. and Schmah, A. and Schwab, E. and Siebenson, J. and Sobolev, Yu. G. and Spataro, S. and Spruck, B. and Ströbele, H. and Stroth, J. and Sturm, C. and Tarantola, A. and Teilab, K. and Tlusty, P. and Traxler, M. and Tsertos, H. and Vasiliev, T. and Wagner, V. and Weber, M. and Wendisch, C. and Wüstenfeld, J. and Yurevich, S. and Zanevsky, Y. and Sarantsev, A. V.},
abstractNote = {Employing the Bonn–Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction p(3.5GeV) + p → pK+Λ. This reaction might contain information about the kaonic cluster “ppK-” (with quantum numbers JP=0- and total isospin I =1/2) via its decay into pΛ. Due to interference effects in our coherent description of the data, a hypothetical K ¯NN (or, specifically “ppK-”) cluster signal need not necessarily show up as a pronounced feature (e.g. a peak) in an invariant mass spectrum like pΛ. Our PWA analysis includes a variety of resonant and non-resonant intermediate states and delivers a good description of our data (various angular distributions and two-hadron invariant mass spectra) without a contribution of a K ¯NN cluster. At a confidence level of CLs=95% such a cluster cannot contribute more than 2–12% to the total cross section with a pK+ Λ final state, which translates into a production cross-section between 0.7 μb and 4.2 μb, respectively. The range of the upper limit depends on the assumed cluster mass, width and production process.},
doi = {10.1016/j.physletb.2015.01.032},
journal = {Physics Letters B},
number = C,
volume = 742,
place = {United States},
year = {2015},
month = {1}
}

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Figures / Tables:

Figure 1 Figure 1: Angular correlations for the pK+Λ final state, within the detector acceptance, shown for the HADES data-set. Black dots are the experimental data with their statistical uncertainty while the gray band shows the four best solutions of the PWA and displays their systematic differences. The upper index at themore » angle indicates the rest frame (RF) in which the angle is displayed. The lower index names the two particles between which the angle is evaluated. CM stands for the center-of-mass system. B and T denote the beam and target vectors, respectively. The observables are: CMS angles (upper row), Gottfied–Jackson angles (middle), and helicity angles (lower row). For further details on the observables see Ref. [55].« less

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      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.