Isospin dependence of nuclear level density at A≈ 120 mass region
Nuclear level density and the level density parameter of 115,119,127Te isotopes are experimentally determined by analyzing the backward angle neutron energy spectra from 4He+112,116,124Sn reactions. Measurements are done in the compound nuclear excitation energy range of 25-42 MeV. Statistical model...
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| Language: | English |
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Elsevier
2022-08-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269322002799 |
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| author | R. Shil K. Banerjee Pratap Roy J. Sadhukhan T.K. Rana G. Mukherjee S. Kundu T.K. Ghosh S. Manna A. Sen R. Pandey A. Chakraborty Deepak Pandit S. Mukhopadhyay Debasish Mondal D. Paul C. Bhattacharya S. Bhattacharya |
| author_facet | R. Shil K. Banerjee Pratap Roy J. Sadhukhan T.K. Rana G. Mukherjee S. Kundu T.K. Ghosh S. Manna A. Sen R. Pandey A. Chakraborty Deepak Pandit S. Mukhopadhyay Debasish Mondal D. Paul C. Bhattacharya S. Bhattacharya |
| author_sort | R. Shil |
| collection | DOAJ |
| description | Nuclear level density and the level density parameter of 115,119,127Te isotopes are experimentally determined by analyzing the backward angle neutron energy spectra from 4He+112,116,124Sn reactions. Measurements are done in the compound nuclear excitation energy range of 25-42 MeV. Statistical model analysis is performed to test different phenomenological prescriptions of the level density parameter. Our data efficiently scan the explicit dependences of level density on three key factors: nuclear deformation, neutron-proton asymmetry, and the separation from the most stable isobar. It is observed that the experimental data are best described when deviation in atomic number from the corresponding β-stable isobar is explicitly taken into account. Further, nuclear level densities determined from the measured spectra show a reduction for 115,127Te in comparison to that of 119Te, which lies closer to the β-stability line. |
| first_indexed | 2024-12-12T03:59:49Z |
| format | Article |
| id | doaj.art-e3a566c2793645d3b67a660daa5cd63e |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-12T03:59:49Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-e3a566c2793645d3b67a660daa5cd63e2022-12-22T00:39:06ZengElsevierPhysics Letters B0370-26932022-08-01831137145Isospin dependence of nuclear level density at A≈ 120 mass regionR. Shil0K. Banerjee1Pratap Roy2J. Sadhukhan3T.K. Rana4G. Mukherjee5S. Kundu6T.K. Ghosh7S. Manna8A. Sen9R. Pandey10A. Chakraborty11Deepak Pandit12S. Mukhopadhyay13Debasish Mondal14D. Paul15C. Bhattacharya16S. Bhattacharya17Department of Physics, Siksha Bhavana, Visva-Bharati, Santiniketan 731235, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India; Corresponding author at: Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India.Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, IndiaDepartment of Physics, Siksha Bhavana, Visva-Bharati, Santiniketan 731235, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, IndiaVariable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, IndiaNuclear level density and the level density parameter of 115,119,127Te isotopes are experimentally determined by analyzing the backward angle neutron energy spectra from 4He+112,116,124Sn reactions. Measurements are done in the compound nuclear excitation energy range of 25-42 MeV. Statistical model analysis is performed to test different phenomenological prescriptions of the level density parameter. Our data efficiently scan the explicit dependences of level density on three key factors: nuclear deformation, neutron-proton asymmetry, and the separation from the most stable isobar. It is observed that the experimental data are best described when deviation in atomic number from the corresponding β-stable isobar is explicitly taken into account. Further, nuclear level densities determined from the measured spectra show a reduction for 115,127Te in comparison to that of 119Te, which lies closer to the β-stability line.http://www.sciencedirect.com/science/article/pii/S0370269322002799Nuclear level densityIsospin dependenceLevel density parameterStatistical model |
| spellingShingle | R. Shil K. Banerjee Pratap Roy J. Sadhukhan T.K. Rana G. Mukherjee S. Kundu T.K. Ghosh S. Manna A. Sen R. Pandey A. Chakraborty Deepak Pandit S. Mukhopadhyay Debasish Mondal D. Paul C. Bhattacharya S. Bhattacharya Isospin dependence of nuclear level density at A≈ 120 mass region Physics Letters B Nuclear level density Isospin dependence Level density parameter Statistical model |
| title | Isospin dependence of nuclear level density at A≈ 120 mass region |
| title_full | Isospin dependence of nuclear level density at A≈ 120 mass region |
| title_fullStr | Isospin dependence of nuclear level density at A≈ 120 mass region |
| title_full_unstemmed | Isospin dependence of nuclear level density at A≈ 120 mass region |
| title_short | Isospin dependence of nuclear level density at A≈ 120 mass region |
| title_sort | isospin dependence of nuclear level density at a≈ 120 mass region |
| topic | Nuclear level density Isospin dependence Level density parameter Statistical model |
| url | http://www.sciencedirect.com/science/article/pii/S0370269322002799 |
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