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Sıcak nükleer sistemlerin baryon korelasyon fonksiyonları
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TVRVd05qQXc.pdf
Date
2016
Author
Gökalp, Ahmet
Yılmaz, Osman
Ayık, Şakir
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Bu projede, nükleer maddenin kendiliğinden alt kümelere bozulduğu kararsız spinodal bölgede, farklı sıcaklık ve farklı yoğunluklarda, kollektif ve kollektif olmayan singülerliklerden (logaritma terimlerinden kaynaklanan) gelen katkıları hesaba katarak sıcak nükleer maddenin korelasyon fonksiyonlarının tam ifadelerinin hesaplanması ile parçalanan sıcak nükleer maddenin yoğunlaşıp kümeleşme mekanizması ve sıvı-gaz faz dönüşümünün ilk evreleri hakkında bilgi edinilmesi yarı-klasik ve kuantal çerçevelerde incelendi. Sıcak nükleer sistemin spinodal kararsız bölgesinde, yarı-klasik ve kuantum mekaniksel olarak türetilen dağılım bağıntısı çözülerek baskın kararsız modların büyüme hızları dalga boyunun bir fonksiyonu olarak ve en kararsız modun büyüme oranı nükleer madde yoğunluğunun fonksiyonu olarak incelendi. Spinodal kararsız bölgenin sınırları, nükleer maddenin sıcaklık ve yoğunluk değerlerine bağlı olarak belirlendi. Ayrıca, spektral yoğunluk korelasyon fonksiyonuna kollektif ve kollektif olmayan singülerliklerden gelen katkılar hesaplandı. Yoğunluk korelasyon fonksiyonu uzaysal iki nokta arasındaki mesafenin fonksiyonu olarak hesaplanarak spinodal kararsız bölgede sıcak nükleer maddenin irili ufaklı parçalara bozulması ile ortaya çıkan damlacıkların kümeleşmelerinin ilk evrelerinin boyutları ve korelasyon hacmindeki nükleon sayısı hakkında bilgi edinildi. Böylece, ağır-iyon çarpışmalarında oluşan sıcak nükleer sistemlerde ve nötron yıldızının dış kabuk bölgesinde gözlenen sıvı-gaz faz dönüşümünü tetikleyen spinodal kararsızlık mekanizmasının anlaşılmasına yönelik dinamik bir çerçeve ortaya konuldu.
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https://app.trdizin.gov.tr/publication/project/detail/TVRVd05qQXc
https://hdl.handle.net/11511/49767
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Department of Physics, Project and Design
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A. Gökalp, O. Yılmaz, and Ş. Ayık, “Sıcak nükleer sistemlerin baryon korelasyon fonksiyonları,” 2016. Accessed: 00, 2020. [Online]. Available: https://app.trdizin.gov.tr/publication/project/detail/TVRVd05qQXc.