Experimental study of 6He Coulomb breakup as an indirect measurement of 4He(2n,?)6He reaction rate for the astrophysical r-process
Por:
Godos D., Acosta L., Fernández-García J.P., O'Malley P., Sánchez-Benítez A.M., Di Pietro A., Tumino A., Vicente A., Boomershine C., Dembski C., Fougères C., Jones C., Bardayan D., Galaviz D., Aguilera E., Afonso F., Barba F.G., Rivero F., Mulcahy G., Casal J., Morales Rivera J.C., Gómez-Camacho J., Arias J.M., Ruffino J., Lee K., Couder M., La Commara M., Mazzocco M., Rodríguez-Gallardo M., Figuera P., Teubig P., Pires R., Zite R., Coil S., Bailey T., Von Seeger W.
Publicada:
1 ene 2024
Categoría:
Physics and astronomy (miscellaneous)
Resumen:
In this work, we report the measurement of elastic and Coulomb break-up channels in 6He+208Pb collisions at Elab = 19.3 MeV, close to the Coulomb barrier of this system ~ 19 MeV. In the context of the astrophysical r-process, the reaction 4He(2n,?)6He has been proposed to be a key reaction in the path of synthesizing seed nuclei for the r-process, as 12C, in an environment composed mainly of alpha particles and neutrons. Based on a theoretical approach for treating three body reactions by means of which its reaction rate can be inferred, our experimental approach aims to obtain an indirect measurement of the reaction rate of 4He(2n,?)6He by measuring the Coulomb breakup of 6He under the intense electric field produced by a 208Pb target nucleus. The experiment was carried out at the TriSol facility operated in the Nuclear Science Laboratory of the University of Notre Dame, USA, which delivered a 6He beam together with other contaminants. Particular care must be taken for the alpha particles produced in the production reaction. © The Authors.
Filiaciones:
Godos D.:
Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, Mexico City, 01000, Mexico
Departamento de Ciencias Integradas, Centro de Estudios Avanzados en Fisica, Matemáticas y Computación, Universidad de Huelva, Huelva, 21071, Spain
Acosta L.:
Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, Mexico City, 01000, Mexico
Instituto de Estructura de la Materia, CSIC, Madrid, 28006, Spain
Fernández-García J.P.:
Departamento de FAMN, Universidad de Sevilla, Sevilla, 41080, Spain
O'Malley P.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Sánchez-Benítez A.M.:
Departamento de Ciencias Integradas, Centro de Estudios Avanzados en Fisica, Matemáticas y Computación, Universidad de Huelva, Huelva, 21071, Spain
Di Pietro A.:
INFN Laboratori Nazionali Del Sud and Sezione di Catania, Catania, I95123, Italy
Tumino A.:
INFN Laboratori Nazionali Del Sud and Sezione di Catania, Catania, I95123, Italy
Facoltà di Ingegneria e Architettura, Università Degli Studi di Enna "kore", Enna, 94100, Italy
Vicente A.:
LIP, Faculty of Sciences, University of Lisbon, Lisbon, 1000-149, Portugal
Boomershine C.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Dembski C.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Fougères C.:
Physics Division, Argonne National Laboratory, Lemont, 60439, IL, United States
CEA/DAM, Chem. du Ru, Bruyères-le-Châtel, 91680, France
Jones C.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Bardayan D.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Galaviz D.:
LIP, Faculty of Sciences, University of Lisbon, Lisbon, 1000-149, Portugal
Aguilera E.:
Departamento de Aceleradores y Estudio de Materiales, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027, Distrito Federal, Mexico City, 11801, Mexico
Afonso F.:
LIP, Faculty of Sciences, University of Lisbon, Lisbon, 1000-149, Portugal
Barba F.G.:
LIP, Faculty of Sciences, University of Lisbon, Lisbon, 1000-149, Portugal
Rivero F.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Mulcahy G.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Casal J.:
Departamento de FAMN, Universidad de Sevilla, Sevilla, 41080, Spain
Morales Rivera J.C.:
Departamento de Aceleradores y Estudio de Materiales, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027, Distrito Federal, Mexico City, 11801, Mexico
Gómez-Camacho J.:
Centro Nacional de Aceleradores (U. Sevilla, J. Andalucía, CSIC), Tomás Alva Edison, 7, Sevilla, 41092, Spain
Arias J.M.:
Departamento de FAMN, Universidad de Sevilla, Sevilla, 41080, Spain
Ruffino J.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Lee K.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Couder M.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
La Commara M.:
Dipartimento di Fisica, Università di Napoli "federico II", Naples, 80131, Italy
Mazzocco M.:
Dipartimento di Fisica e Astronomia 'Galileo Galilei', Universitá di Padova, Padova, 35121, Italy
Rodríguez-Gallardo M.:
Departamento de FAMN, Universidad de Sevilla, Sevilla, 41080, Spain
Figuera P.:
INFN Laboratori Nazionali Del Sud and Sezione di Catania, Catania, I95123, Italy
Teubig P.:
LIP, Faculty of Sciences, University of Lisbon, Lisbon, 1000-149, Portugal
Pires R.:
LIP, Faculty of Sciences, University of Lisbon, Lisbon, 1000-149, Portugal
Zite R.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Coil S.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Bailey T.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
Von Seeger W.:
Department of Physics and Astronomy, University of Notre Dame, Notre Dame, 46556, IN, United States
All Open Access; Gold Open Access
|