Search for the eta mesic He-3 in the pd -> dp pi(0) reaction with the WASA-at-COSY facility

Adlarson P, Augustyniak W, Bashkanov M, Bass SD, Bergmann FS, Berlowski M, Bondar A, Buescher M, Calen H, Ciepal I, Clement H, Czerwinski E, Demmich K, Engels R, Erven A, Erven W, Eyrich W, Fedorets P, Foehl K, Fransson K, Goldenbaum F, Goswami A, Grigoryev K, Heijkenskjoeld L, Hejny V, Huesken N, Hirenzaki S, Johansson T, Kamys B, Kelkar NG, Kemmerling G, Khoukaz A, Khreptak A, Kirillov DA, Kistryn S, Kleines H, Klos B, Krzemien W, Kulessa P, Kupsc A, Lalwani K, Lersch D, Lorentz B, Magiera A, Maier R, Marciniewski P, Marianski B, Morsch HP, Moskal P, Ohm H, Parol W, Del Rio EP, Piskunov NM, Prasuhn D, Pszczel D, Pysz K, Ritman J, Roy A, Rundel O, Sawant S, Schadmand S, Sefzick T, Serdyuk V, Shwartz B, Skorodko T, Skurzok M, Smyrski J, Sopov V, Stassen R, Stepaniak J, Stephan E, Sterzenbach G, Stockhorst H, Stroeher H, Szczurek A, Wolke M, Wronska A, Wuestner P, Yamamoto A, Zabierowski J, Zielinski MJ, Zlomanczuk J, Zurek M (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 102

Journal Issue: 4

DOI: 10.1103/PhysRevC.102.044322

Abstract

The excitation function for the pd -> dp pi(0) reaction has been measured byWASA-at-COSY experiment with the aim of searching for He-3-h mesic nuclei. The measurement in the vicinity of h meson production was performed using a ramped proton beam. The data analysis and interpretation was carried out with the assumption that the h mesic helium decays via the formation of an intermediate N*(1535) resonance. No direct signal of the. mesic nucleus is observed in the excitation function. We determine a new improved upper limit for the total cross section for the bound state production and decay in the pd -> (He-3-eta)(bound) -> dp pi(0) process. It varies between 13 nb to 24 nb for the bound state with width in the range Gamma is an element of ( 5, 50) MeV.

Authors with CRIS profile

Involved external institutions

Forschungszentrum Jülich / Research Centre Jülich (FZJ) Germany (DE) National Centre for Nuclear Research (früher:Institute of Atomic Energy POLATOM & Andrzej Sołtan Institute for Nuclear Studies) / Narodowe Centrum Badań Jądrowych (NCBJ) Poland (PL) Westfälische Wilhelms-Universität (WWU) Münster Germany (DE) Polska Akademia Nauk (PAN) / Polish Academy of Sciences Poland (PL) Uppsala University Sweden (SE) Joint Institute for Nuclear Research (JINR) / Объединённый институт ядерных исследований (ОИЯИ) Russian Federation (RU) Jagiellonian University / Uniwersytet Jagielloński (UJ) Poland (PL) Universidad de los Andes Chile (CL) Indian Institute of Technology Indore (IITI) / भारतीय प्रौद्योगिकी संस्थान इंदौर India (IN) The High Energy Accelerator Research Organization (KEK) Japan (JP) Malaviya National Institute of Technology Jaipur (MNIT) / मालवीय राष्ट्रीय प्रौद्योगिकी संस्थान जयपुर India (IN) National Research Centre "Kurchatov Institute" / Hациональный исследовательский центр "Курчатовский Институт" Russian Federation (RU) Budker Institute of Nuclear Physics (BINP) / Институт ядерной физики имени Г. И. Будкера СО РАН Russian Federation (RU) Indian Institute of Technology Bombay India (IN) University of Silesia in Katowice / Uniwersytet Śląski w Katowicach Poland (PL) Università degli studi "La Sapienza" Italy (IT) Eberhard Karls Universität Tübingen Germany (DE) Nara Women's University / 奈良女子大学 Japan (JP) Justus-Liebig-Universität Gießen Germany (DE) University of Edinburgh United Kingdom (GB)

How to cite

APA:

Adlarson, P., Augustyniak, W., Bashkanov, M., Bass, S.D., Bergmann, F.S., Berlowski, M.,... Zurek, M. (2020). Search for the eta mesic He-3 in the pd -> dp pi(0) reaction with the WASA-at-COSY facility. Physical Review C - Nuclear Physics, 102(4). https://dx.doi.org/10.1103/PhysRevC.102.044322

MLA:

Adlarson, P., et al. "Search for the eta mesic He-3 in the pd -> dp pi(0) reaction with the WASA-at-COSY facility." Physical Review C - Nuclear Physics 102.4 (2020).

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