Measurement of the np->np [pi]0[pi]0 reaction in search for the recently observed d*(2380) resonance
- Adlarson, P.
- Augustyniak, W.
- Bardan, W.
- Bashkanov, M.
- Bergmann, F. S.
- Berłowski, M.
- Bhatt, H.
- Bondar, H.
- Büscher, M.
- Calen, H.
- Ciepał, I.
- Żuprański, P.
- Żurek, M.
- Clement, H.
- Coderre, D.
- Czerwiński, E.
- Demmich, K.
- Doroshkevich, E.
- Engels, R.
- Erven, A.
- Ervenl, W.
- Eyrich, W.
- Fedorets, P.
- Foh, K.
- Fransson, K.
- Goldenbaum, F.
- Gosławski, P.
- Goswami, A.
- Grigoryev, K.
- Gullstrom, C.-O.
- Hauenstein, F.
- Heijkenskjold, L.
- Hejny, V.
- Hoistad, B.
- Husken, N.
- Jarczyk, L.
- Johansson, T.
- Kamys, B.
- Kemmerling, G.
- Khan, F. A.
- Khoukaz, A.
- Kirillov, D. A.
- Kistryn, S.
- Kleines, H.
- Kłos, Barbara
- Krzemień, W.
- Kulessa, P.
- Kupść, A.
- Kuzmin, A.
- Lalwani, K.
- Lersch, D.
- Lorentz, B.
- Magiera, A.
- Maier, R.
- Marciniewski, P.
- Mariański, B.
- Mikirtychiants, M.
- Morsch, H.-P.
- Moskal, P.
- Ohm, H.
- Ozerianska, I.
- Perez del Rio, E.
- Piskunov, N. M.
- Podkopał, P.
- Prasuhn, D.
- Pricking, A.
- Pszczel, D.
- Pysz, K.
- Pyszniak, A.
- Ritman, J.
- Roy, A.
- Rudy, Z.
- Sawant, S.
- Schadmand, S.
- Sefzick, T.
- Serdyuk, V.
- Shwartz, B.
- Siudak, R.
- Skorodko, T.
- Skurzok, M.
- Smyrski, J.
- Sopov, V.
- Stassen, R.
- Stepaniak, J.
- Stephan, Elżbieta
- Sterzenbach, G.
- Stockhorst, H.
- Stroher, H.
- Szczurek, A.
- Taschner, A.
- Trzciński, A.
- Varma, R.
- Wagner, G. J.
- Wolke, M.
- Wrońska, A.
- Wustner, P.
- Wurm, P.
- Yamamoto, A.
- Zabierowski, J.
- Zieliński, M. J.
- Zink, A.
- Złomańczuk, J.
DOIAbstract
Exclusive measurements of the quasi-free np→npπ 0 π 0 reaction have been performed by means of dp collisions at T d =2.27GeV using the WASA detector setup at COSY. Total and differential cross sections have been obtained covering the energy region s=(2.35-2.46)GeV, which includes the region of the ABC effect and its associated d ® (2380) resonance. Adding the d ® resonance amplitude to that for the conventional processes leads to a reasonable description of the data. The observed resonance effect in the total cross section is in agreement with the predictions of Fäldt and Wilkin as well with those of Albadajedo and Oset. The ABC effect, i.e. the low-mass enhancement in the π 0 π 0 -invariant mass spectrum, is found to be very modest - if pr...
Add to ORKG