pp and ππ intensity interferometry in collisions of Ar+KCl at 1.76A GeV
- Agakishiev, G.
- Balanda, A.
- Bannier, B.
- Bassini, R.
- Belver, D.
- Belyaev, A.V.
- Blanco, A.
- B¨ohmer, M.
- Boyard, J.L.
- Cabanelas, P.
- Castro, E.
- Chernenko, S.
- Christ, T.
- Destefanis, M.
- Diaz, J.
- Dohrmann, F.
- Dybczak, A.
- Eberl, T.
- Epple, E.
- Fabbietti, L.
- Fateev, O.V.
- Finocchiaro, P.
- Fonte, P.
- Friese, J.
- Fr¨ohlich, I.
- Galatyuk, T.
- Garzon, J.A.
- Gernh¨auser, R.
- Gil, A.
- Gilardi, C.
- Golubeva, M.
- Gonz'Alez-d'Iaz, D.
- Guber, F.
- Gumberidze, M.
- Heilmann, M.
- Heinz, T.
- Hennino, T.
- Holzmann, R.
- Huck, P.
- Iori, I.
- Ivashkin, A.
- Jurkovic, M.
- K¨ampfer, B.
- Kanaki, K.
- Karavicheva, T.
- Kirschner, D.
- Koenig, I.
- Koenig, W.
- Kolb, B.W.
- Kotte, R.
- Krizek, F.
- Kr¨ucken, R.
- K¨uhn, W.
- Kugler, A.
- Kurepin, A.
- Lang, S.
- Lange, J.S.
- Lapidus, K.
- Liu, T.
- Lopes, L.
- Lorenz, M.
- Maier, L.
- Mangiarotti, A.
- Markert, J.
- Metag, V.
- Michalska, B.
- Michel, J.
- Mishra, D.
- Morinière, E.
- Mousa, J.
- M¨untz, C.
- Naumann, L.
- Otwinowski, J.
- Pachmayer, Y.C.
- Palka, M.
- Parpottas, Y.
- Pechenov, V.
- Pechenova, O.
- Perez Cavalcanti, T.
- Pietraszko, J.
- Przygoda, W.
- Ramstein, B.
- Reshetin, A.
- Roy-Stephan, M.
- Rustamov, A.
- Sadovsky, A.
- Sailer, B.
- Salabura, P.
- Schmah, A.
- Schwab, E.
- Siebenson, J.
- Sobolev, Yu.G.
- Spataro, S.
- Spruck, B.
- Str¨obele, H.
- Stroth, J.
- Sturm, C.
- Tarantola, A.
- Teilab, K.
- Tlusty, P.
- Traxler, M.
- Trebacz, R.
- Tsertos, H.
- Wagner, V.
- Weber, M.
- Wendisch, C.
- Wisniowski, M.
- Wojcik, T.
- W¨ustenfeld, J.
- Yurevich, S.
- Zanevsky, Y.V.
- Zhou, P.
- Zumbruch, P.
DOIAbstract
Results on pp, π+π+, and π−π− intensity interferometry are reported for collisions of Ar+KCl at 1.76A GeV beam energy, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18/GSI. The experimental correlation functions as a function of the relative momentum are compared to model calculations allowing the determination of the space-time extent of the corresponding emission sources. The ππ source radii are found significantly larger than the pp emission radius. The present radii do well complement the beam-energy dependences of Gaussian source radii of the collision system of size A + A ≃ 40 + 40 . The pp source radius at fixed beam energy is found to increase linearly with the cube root of the number of participants. From ...
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