Journal article
Authors list: Adlarson, P.; Augustyniak, W.; Bardan, W.; Bashkanov, M.; Bergmann, F. S.; 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.; Jarczyk, L.; Johansson, T.; Kamys, B.; Kemmerling, G.; Khoukaz, A.; Khreptak, O.; Kirillov, D. A.; 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, H. -P.; Moskal, P.; Ohm, H.; Parol, W.; del Rio, E. Perez; Piskunov, N. M.; Prasuhn, D.; Pszczel, D.; Pysz, K.; Ritman, J.; Roy, A.; Rudy, Z.; Rundel, O.; Sawant, S.; Schadmand, S.; Schatti-Ozerianska, I.; 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.; Trzcinski, A.; Wolke, M.; Wronska, A.; Wuestner, P.; Yamamoto, A.; Zabierowski, J.; Zielinski, M. J.; Zlomanczuk, J.; Zupranski, P.; Zurek, M.
Publication year: 2019
Journal: Physical Review C
Volume number: 99
Issue number: 2
ISSN: 2469-9985
eISSN: 2469-9993
DOI Link: https://doi.org/10.1103/PhysRevC.99.025201
Publisher: American Physical Society
Abstract:
The quasifree pp -> pp pi(+)pi(-) reaction has been measured by means of pd collisions at T-p = 1.2 GeV using the WASA detector setup at COSY enabling exclusive and kinematically complete measurements. Total and differential cross sections have been extracted for the energy region T-p = 1.08-1.36 GeV (root s = 2.35-2.46 GeV) covering thus the regions of N* (1440 ) and Delta(1232)Delta(1232) resonance excitations. Calculations describing these excitations by t-channel meson exchange as well as isospin relations based on the pp -> pp pi(0)pi(0) data underpredict substantially the measured total cross section. The calculations are also at variance with specific experimental differential cross sections. An isotensor Delta N dibaryon resonance with I(J(P)) = 2(1(+) ) produced associatedly with a pion is able to overcome these deficiencies. Such a dibaryon was predicted by Dyson and Xuong [Phys. Rev. Lett. 13, 815 (1964)] and more recently calculated by A. Gal and H. Garcilazo [Nucl. Phys. A 928, 73 (2014)].
Citation Styles
Harvard Citation style: Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F., Berlowski, M., et al. (2019) Examination of the production of an isotensor dibaryon in the pp → ppπ+π- reaction, Physical Review C (nuclear physics), 99(2), Article 025201. https://doi.org/10.1103/PhysRevC.99.025201
APA Citation style: Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F., 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., ...Zurek, M. (2019). Examination of the production of an isotensor dibaryon in the pp → ppπ+π- reaction. Physical Review C (nuclear physics). 99(2), Article 025201. https://doi.org/10.1103/PhysRevC.99.025201
Keywords
2-PION PRODUCTION; CROSS-SECTIONS; DOUBLE-CHARGE-EXCHANGE; DOUBLE-PIONIC FUSION; PROTON-PROTON COLLISIONS; SINGLE-PION
