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SUMMARY:Study of isoscalar giant monopole resonance in tin isotopes
DTSTART;VALUE=DATE-TIME:20231203T075000Z
DTEND;VALUE=DATE-TIME:20231203T080500Z
DTSTAMP;VALUE=DATE-TIME:20260811T120631Z
UID:indico-contribution-3370@indico.tlabs.ac.za
DESCRIPTION:Speakers: Rani Devi (University of Jammu)\nThe investigation o
 f compressional-mode giant resonances\, specifically the isoscalar giant m
 onopole resonance (GMR)\, continues to captivate the interest of nuclear p
 hysicists. This research is centered on the meticulous analysis of isoscal
 ar monopole resonances within the 112-124Sn isotopic mass chain\, aiming t
 o glean profound insights into nuclear matter compressibility. The lingeri
 ng disparity between experimentally observed GMR energies and theoretical 
 calculations has sparked a fundamental question: Why do theoretical predic
 tions tend to overestimate experimental values\, and which interaction mod
 el offers the most accurate depiction of empirical data.\nIn this study\, 
 the power of the relativistic Quasiparticle Finite Amplitude Method has be
 en harnessed to systematically explore the intricate characteristics of is
 oscalar monopole strength across the 112-124Sn isotopic mass chain. To ach
 ieve this\, a systematic calculation has been performed to obtain strength
  functions and centroid energies by utilizing the density-dependent meson-
 exchange and point coupling  parameterizations in an axially deformed harm
 onic oscillator basis. This approach enabled us to discern nuanced pattern
 s in the isoscalar monopole resonance and assess its behavior with respect
  to different interactions. The obtained results are compared with the exp
 erimental data and  other available theoretical approaches. For the specif
 ic case of 116Sn\, the results are compared with the theoretical predictio
 ns derived from Skyrme interactions. The findings indicate that the densit
 y-dependent meson-exchange interaction aligns well with the available expe
 rimental data\, outperforming other considered interactions. This highligh
 ts the efficacy of the relativistic Quasiparticle Finite Amplitude Method 
 in conjunction with the density-dependent meson-exchange  interaction for 
 predicting GMR characteristics.\n\nhttps://indico.tlabs.ac.za/event/119/co
 ntributions/3370/
LOCATION:
URL:https://indico.tlabs.ac.za/event/119/contributions/3370/
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