skip to main content

SciTech ConnectSciTech Connect

Title: The ({sup 18}O, {sup 16}O) reaction as a probe for nuclear spectroscopy

The response of nuclei to the ({sup 18}O, {sup 16}O) two-neutron transfer reaction at 84 MeV incident energy has been systematically studied at the Catania INFN-LNS laboratory. The experiments were performed using several solid targets from light ({sup 9}Be, {sup 11}B, {sup 12,13}C, {sup 16}O, {sup 28}Si) to heavy ones ({sup 58,64}Ni, {sup 120}Sn, {sup 208}Pb). The {sup 16}O ejectiles were detected at forward angles by the MAGNEX magnetic spectrometer. Exploiting the large momentum acceptance (−10%, +14%) and solid angle (50 msr) of the spectrometer, energy spectra were obtained with a relevant yield up to about 20 MeV excitation energy. The application of the powerful trajectory reconstruction technique did allow to get energy spectra with energy resolution of about 150 keV and angular distributions with angular resolution better than 0.3°. A common feature observed with light nuclei is the appearance of unknown resonant structures at high excitation energy. The strong population of these latter together with the measured width can reveal the excitation of a collective mode connected with the transfer of a pair.
Authors:
; ; ;  [1] ; ; ; ;  [2] ; ;  [3] ;  [4] ;  [5] ;  [6]
  1. INFN - Laboratori Nazionali del Sud, Via S. Sofia 62, I-95125 Catania, Italy and Dipartimento di Fisica e Astronomia, Università di Catania, Via S. Sofia 64, I-95125 Catania (Italy)
  2. INFN - Laboratori Nazionali del Sud, Via S. Sofia 62, I-95125 Catania (Italy)
  3. Instituto de Física - Universidade de São Paulo, Rua do Matão Travessa R Nr.187, 05508-090 Cidade Universitária, São Paulo (Brazil)
  4. INFN - Sezione di Catania, Via S. Sofia 64, I-95125 Catania (Italy)
  5. Instituto de Física, Universidade Federal Fluminense, Avenida Litoranea s/n, Gragoata, 24210-340, Niteroi, RJ (Brazil)
  6. Dipartimento di Fisica e Astronomia, Università di Catania, Via S. Sofia 64, I-95125 Catania, Italy and INFN - Sezione di Catania, Via S. Sofia 64, I-95125 Catania (Italy)
Publication Date:
OSTI Identifier:
22390497
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1625; Journal Issue: 1; Conference: 36. Brazilian Workshop on Nuclear Physics, Sao Sebastiao, SP (Brazil), 1-5 Sep 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ANGULAR DISTRIBUTION; BERYLLIUM 9; BORON 11; CARBON 13; ENERGY RESOLUTION; ENERGY SPECTRA; EXCITATION; KEV RANGE; LEAD 208; MAGNETIC SPECTROMETERS; MEV RANGE; NICKEL 64; NUCLEAR REACTION YIELD; OXYGEN 16 REACTIONS; OXYGEN 18 REACTIONS; SILICON 28; TIN 120; TRANSFER REACTIONS