The neutron-proton (n-p) equilibration process in Ca48+Ca40 at 35 MeV/nucleon bombarding energy is experimentally estimated by means of the isospin transport ratio. Experimental data are collected with a subset of the FAZIA telescope array, which permits us to determine the Z and N of detected fragments. For the first time, the quasiprojectile (QP) evaporative channel is compared with the QP breakup one in a homogeneous and consistent way, pointing to comparable n-p equilibration, which suggests a close interaction time between projectile and target independently of the exit channel. Moreover, in the QP evaporative channel n-p equilibration is compared with the prediction of the antisymmetrized molecular dynamics model coupled with the Gemini statistical model as an afterburner, showing a higher probability of proton and neutron transfers in the simulation with respect to the experimental data.
Isospin diffusion measurement from the direct detection of a quasiprojectile remnant / Camaiani A.; Casini G.; Piantelli S.; Ono A.; Bonnet E.; Alba R.; Barlini S.; Borderie B.; Bougault R.; Ciampi C.; Chbihi A.; Cicerchia M.; Cinausero M.; Duenas J.A.; Dell'Aquila D.; Fable Q.; Fabris D.; Frosin C.; Frankland J.D.; Gramegna F.; Gruyer D.; Hahn K.I.; Henri M.; Hong B.; Kim S.; Kordyasz A.; Kweon M.J.; Lee H.J.; Lemarie J.; Leneindre N.; Lombardo I.; Lopez O.; Marchi T.; Nam S.H.; Ottanelli P.; Parlog M.; Pasquali G.; Poggi G.; Quicray J.; Stefanini A.A.; Upadhyaya S.; Valdre S.; Vient E.. - In: PHYSICAL REVIEW C. - ISSN 2469-9985. - ELETTRONICO. - 103:(2021), pp. 0-0. [10.1103/PhysRevC.103.014605]
Isospin diffusion measurement from the direct detection of a quasiprojectile remnant
Camaiani A.;Piantelli S.;Barlini S.;Ciampi C.;Frosin C.;Gruyer D.;Ottanelli P.;Pasquali G.;Poggi G.;Stefanini A. A.;
2021
Abstract
The neutron-proton (n-p) equilibration process in Ca48+Ca40 at 35 MeV/nucleon bombarding energy is experimentally estimated by means of the isospin transport ratio. Experimental data are collected with a subset of the FAZIA telescope array, which permits us to determine the Z and N of detected fragments. For the first time, the quasiprojectile (QP) evaporative channel is compared with the QP breakup one in a homogeneous and consistent way, pointing to comparable n-p equilibration, which suggests a close interaction time between projectile and target independently of the exit channel. Moreover, in the QP evaporative channel n-p equilibration is compared with the prediction of the antisymmetrized molecular dynamics model coupled with the Gemini statistical model as an afterburner, showing a higher probability of proton and neutron transfers in the simulation with respect to the experimental data.
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