Observation of a double giant dipole resonance in fusion-evaporation reactions

Viesti, G.; Rizzi, V.; Cinausero, M.; Gelli, N.; Gadea, A.; Bazzacco, D.; Algora Pineda, A.; Appelbee, D.; de Angelis, G.; Belcari, N.; De Poli, M.; Drake, T. E.; Fabris, D.; Farnea, E.; Fioretto, E.; Galindo Uribarri, A.; Krolas, W.; Kroll, T.; Lucarelli, Franco; Lunardi, S.; Lunardon, M.; Martinez, T.; Menegazzo, 2 R.; Nayak, B. K.; Nebbia, G.; Napoli, D. R.; Nyako, B.; Petrache, C.; Podolyak, Z.; Prete, G.; Rossi Alvarez, C.; Spolaore, P.; Ur, C.; Zuber, K.

doi:10.1103/PhysRevC.63.034611

The emission of two coincident energetic (E greater than or equal to8 MeV) gamma rays has been observed in the 187 MeV Cl-37 + Sn-120 reaction by using the cluster detectors of the EUROBALL III array. Those events are attributed to the decay of the double giant dipole resonance built on highly excited states.

Observation of a double giant dipole resonance in fusion-evaporation reactions / G. Viesti; V. Rizzi; M. Cinausero; N. Gelli; A. Gadea; D. Bazzacco; A. Algora-Pineda; D. Appelbee; G. de Angelis; N. Belcari; M. De Poli; T. E. Drake; D. Fabris; E. Farnea; E. Fioretto; A. Galindo-Uribarri; W. Krolas; T. Kroll; F. Lucarelli; S. Lunardi; M. Lunardon; T. Martinez;2 R. Menegazzo; B. K. Nayak; G. Nebbia; D. R. Napoli; B. Nyako; C. Petrache; Z. Podolyak; G. Prete; C. Rossi Alvarez; P. Spolaore; C. Ur; K. Zuber. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - STAMPA. - 63:(2001), pp. 034611-1-034611-6. [10.1103/PhysRevC.63.034611]