Isospin transport in 84Kr+112,124Sn reactions at Fermi energies

التفاصيل البيبلوغرافية
العنوان:	Isospin transport in 84Kr+112,124Sn reactions at Fermi energies
المؤلفون:	Piantelli, S., Casini, G., Olmi, A., Barlini, S., Bini, M., Carboni, S., Maurenzig, P. R., Pasquali, G., Poggi, G., Stefanini, A. A., Bougault, R., LeNeindre, N., Lopez, O., Parlog, M., Vient, E., Bonnet, E., Chbihi, A., Frankland, J. D., Gruyer, D., Rosato, E., Spadaccini, G., Vigilante, M., Borderie, B., Rivet, M. F., Bruno, M., Morelli, L., Cinausero, M., Degerlier, M., Gramegna, F., Marchi, T., Alba, R., Maiolino, C., Santonocito, D., Kozik, T., Twarog, T.
سنة النشر:	2013
المجموعة:	Nuclear Experiment
مصطلحات موضوعية:	Nuclear Experiment
الوصف:	Isospin transport phenomena in dissipative heavy ion collisions have been investigated at Fermi energies with a beam of 84Kr at 35AMeV. A comparison of the /Z of light and medium products forward-emitted in the centre of mass frame when the beam impinges on a n-poor 112Sn and a n-rich 124Sn targets is presented. Data were collected by means of a three-layer telescope with very good performances in terms of mass identification (full isotopic resolution up to Z about 20 for ions punching through the first detector layer) built by the FAZIA Collaboration and located just beyond the grazing angle for both reactions. The /Z of the decay products emitted when the n-rich target is used is always higher than that associated to the n-poor one. Since the detector was able to measure only fragments coming from the QuasiProjectile decay and/or neck emission, the observed behaviour can be ascribed to the isospin diffusion, driven by the isospin gradient between QuasiProjectile and QuasiTarget. Moreover, for light fragments the /Z as a function of the lab velocity of the fragment increases when we move from the QuasiProjectile velocity to the centre of mass (neck zone). This effect can be interpreted as an evidence of isospin drift driven by the density gradient between the QuasiProjectile zone (at normal density) and the more diluted neck zone. Comment: 4 pages, 3 figures, Contribution to conference proceedings of the 25th International Nuclear Physics Conference (INPC 2013) Journal-ref: 25th International Nuclear Physics Conference (INPC 2013), Firenze : Italy (2013)
نوع الوثيقة:	Working Paper
DOI:	10.1051/epjconf/20146603070
URL الوصول:	http://arxiv.org/abs/1309.1590
رقم الأكسشن:	edsarx.1309.1590
قاعدة البيانات:	arXiv

الوصف
DOI:	10.1051/epjconf/20146603070