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Ditemukan 2 dokumen yang sesuai dengan query
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Netta Liliani
Pengaruh kopling tensor, isovektor-isoskalar dan pertukaran elektromagnetik terhadap prediksi inti super berat = Effect of the tensor, isoventor-isokalar and electromagnetic exchange couplings on prediction of super heavy nuclei
"[ABSTRAK
Pengaruh dari kopling tensor, isovektor-isoskalar dan pertukaran elektromagnetik
terhadap inti berat dan prediksi inti super berat dipelajari melalui teori Relativistic
Mean Field (RMF). Ditemukan bahwa ketiga kopling tersebut memberikan penga-
ruh yang signi kan terhadap sifat materi nuklir, energi ikat, spektrum energi partikel
tunggal, distribusi kerapatan dan ketebalan kulit inti berat dan prediksi inti super
berat. Hasil Penelitian ini menunjukan bahwa 208Pb dan 292120 adalah double ma-
gic nuclei. hasil ini konsisten dengan data eksperimen dan prediksi model RMF,
sedangkan hasil utama penelitian ini nememukan bahwa 276U adalah double magic
nuclei.ABSTRACT We studied the e ect of tensor, isovektor-isoskalar and electromagnetic exchange
couplings on heavy and prediction of superheavy nuclei by using RMF model. We
have found that those couplings signi cantly in
uence the nuclear matter properties,
binding energy, single particle spectra, nucleon densities and neutron skin of heavy
and superheavy nuclei. Our result show that 208Pb and 292120 are double magic
nuclei. This results are consistent with experimental nding and other RMF model
prediction, while our main result is 276U is also double magic nuclei.;We studied the e ect of tensor, isovektor-isoskalar and electromagnetic exchange
couplings on heavy and prediction of superheavy nuclei by using RMF model. We
have found that those couplings signi cantly in
uence the nuclear matter properties,
binding energy, single particle spectra, nucleon densities and neutron skin of heavy
and superheavy nuclei. Our result show that 208Pb and 292120 are double magic
nuclei. This results are consistent with experimental nding and other RMF model
prediction, while our main result is 276U is also double magic nuclei.;We studied the e ect of tensor, isovektor-isoskalar and electromagnetic exchange
couplings on heavy and prediction of superheavy nuclei by using RMF model. We
have found that those couplings signi cantly in
uence the nuclear matter properties,
binding energy, single particle spectra, nucleon densities and neutron skin of heavy
and superheavy nuclei. Our result show that 208Pb and 292120 are double magic
nuclei. This results are consistent with experimental nding and other RMF model
prediction, while our main result is 276U is also double magic nuclei., We studied the e ect of tensor, isovektor-isoskalar and electromagnetic exchange
couplings on heavy and prediction of superheavy nuclei by using RMF model. We
have found that those couplings signi cantly in
uence the nuclear matter properties,
binding energy, single particle spectra, nucleon densities and neutron skin of heavy
and superheavy nuclei. Our result show that 208Pb and 292120 are double magic
nuclei. This results are consistent with experimental nding and other RMF model
prediction, while our main result is 276U is also double magic nuclei.]"
Universitas Indonesia, 2015
T43788
UI - Tesis Membership  Universitas Indonesia Library
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Alpi Mahisha Nugraha
Fenomena halo berdasarkan model relativistic mean field (RMF) = Halo phenomenon in relativistic mean field (RMF) model
"Fenomena halo neutron dalam nuklir digambarkan adanya kemunculan ’ekor’ dan adanya ’ruang kosong’ antara core dan ekor pada distribusi neutron akibat energi ikat yang lemah. Metode analisa halo yang dikembangkan oleh V. Rotival dkk [Phys. Rev. C79, 054308 (2009)] untuk menghitung besaran-besaran halo berdasarkan model Hartree-Fock-Bogoulibov (HFB) pada isotop Cr dan isotop Sn menjadi salah satu alternatif untuk mempelajari fenomena halo. Berbeda dengan Rotival dkk, kami menggunakan model Relativistic Mean Field (RMF) pada penelitian ini. Berbeda dengan hasil perhitungan berdasarkan model HFB, kami fokus mengamati perilaku spektrum single particle energy level 1g9~2 terhadap kemunculan halo pada isotop Cr. Selain itu, pada penelitian ini kami juga memperlajari dampak dari suku cross coupling meson ω − ρ, suku-suku tensor dan suku pertukaran elektromagnetik pada model RMF terhadap kemunculan halo pada isotop Cr dan isotop Sn. Hasil perhitungan prediksi kemunculan halo berdasarkan model RMF lebih besar dibandingkan dengan hasil perhitungan berdasarkan model HFB (⟨Nhalo⟩RMF > ⟨Nhalo⟩HFB).
In neutron halo phenomenon, the neutron density displays an unusually extended ’tail’ and ’empty space’ between the core and the tail due to weak binding energy. New analysis method of the halo was developed by V. Rotival, et al.[Phys. Rev. C79, 054308 (2009)] in Cr-isotopes and Sn-isotopes, its usually applied with Hartree-Fock-Bogoliubov (HFB) model. Unlike them, we use the model of the Relativistic Mean Field (RMF) in this research. We observed different behavior at the level 1g9~2 in line with appearance of halo in Cr-isotopes. Moreover, in this research we also studied the effects of cross coupling meson ω − ρ, tensor, and electromagnetic exchange in RMF model appearance of halo in Cr-isotopes and Sn-isotopes. The prediction of the existence of halo based on RMF model is greater than the prediction based on HFB model (⟨Nhalo⟩RMF > ⟨Nhalo⟩HFB)."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2015
T43785
UI - Tesis Membership  Universitas Indonesia Library