Isotensor Dibaryon in the pp -> pp pi(+)pi(-) Reaction?

Autor: ADLARSON, P, AUGUSTYNIAK, W, BARDAN, W, BASHKANOV, M, BERGMANN, FS, BERLOWSKI, M, BONDAR, A, BUSCHER, M, CALEN, H, CIEPAL, I, CLEMENT, H, CZERWINSKI, E, DEMMICH, K, ENGELS, R, ERVEN, A, ERVEN, W, EYRICH, W, FEDORETS, P, FOHL, K, FRANSSON, K, GOLDENBAUM, F, GOSWAMI, A, GRIGORYEV, K, HEIJKENSKJOLD, L, HEJNY, V, HUSKEN, N, JARCZYK, L, JOHANSSON, T, KAMYS, B, KEMMERLING, G, KHOUKAZ, A, KHREPTAK, O, 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, 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, STROHER, H, SZCZUREK, A, TRZCINSKI, A, WOLKE, M, WRONSKA, A, WUSTNER, P, YAMAMOTO, A, ZABIEROWSKI, J, ZIELINSKI, MJ, ZLOMANCZUK, J, ZUPRANSKI, P, ZUREK, M
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: IndraStra Global.
ISSN: 2381-3652
Popis: Exclusive measurements of the quasifree pp -> pp pi(+)pi(-) reaction have been carried out at WASA@ COSY by means of pd collisions at T-p = 1.2 GeV. Total and differential cross sections have been extracted covering the energy region T-p = 1.08-1.36 GeV, which is the region of N* (1440) and Delta(123)Delta(1232) resonance excitations. Calculations describing these excitations by t-channel meson exchange are at variance with the measured differential cross sections and underpredict substantially the experimental total cross section. An isotensor Delta N dibaryon resonance with I(J(P)) = 2(1(+)) produced associatedly with a pion is able to overcome these deficiencies.
Databáze: OpenAIRE