Výsledky vyhledávání - "lithium problem"

Akademický článek

Direct and Indirect Measurements for a Better Understanding of the Primordial Nucleosynthesis

Autor: Roberta Spartá, Rosario Gianluca Pizzone, Carlos A. Bertulani, Suqing Hou, Livio Lamia, Aurora Tumino

Publikováno v: Frontiers in Astronomy and Space Sciences, Vol 7 (2020)

The Big Bang Nucleosynthesis (BBN) model is a great success of nuclear astrophysics due to the outstanding agreement between observational and predicted light elements abundances. One exception, however, is the so-called “lithium problem.” In thi

Externí odkaz: https://doaj.org/article/eda673283df645f48641fbb567e89213

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Akademický článek

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Akademický článek

n + 7Be Cross-Sections of Astrophysical Interest at the CERN n_TOF Facility

Autor: Mario Mastromarco, Lucia Anna Damone, Massimo Barbagallo, the n_TOF Collaboration

Publikováno v: Proceedings, Vol 13, Iss 1, p 12 (2019)

One of the possible explanations of the so-called Cosmological Lithium Problem (CLIP), i.e., the large overestimate of the primordial 7 Li abundance by the standard Big Bang Nucleosynthesis theory (BBN), is related to an incorrect underestimation of

Externí odkaz: https://doaj.org/article/f7cee184193b45b8932870de37256095

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New reaction rates for the destruction of $^7$Be during big bang nucleosynthesis measured at CERN/n_TOF and their implications on the cosmological lithium problem

Autor: Z. Eleme, M. Mastromarco, Massimo Barbagallo, I. Knapova, Anton Wallner, S. Valenta, Rugard Dressler, P. Vaz, M. Krtička, Marco Calviani, A. Gawlik, G. Vannini, A. G. Smith, A. Tsinganis, T. Martinez, V. Furman, T. J. Wright, Alberto Ventura, M. Dietz, Luciano Piersanti, M. Caamaño, Nicola Colonna, P. J. Woods, I. Ladarescu, Vasilis Vlachoudis, E. González-Romero, F. Ogállar, M. Sabaté-Gilarte, P. J. Davies, N. Patronis, A. K. Saxena, Arnaud Ferrari, L. Audouin, N. V. Sosnin, Annamaria Mazzone, Petar Žugec, G. Tagliente, D. Ramos Doval, O. Aberle, E. Chiaveri, J. Moreno-Soto, Alberto Mengoni, E. Dupont, A. Pavlik, P. Sprung, G. Cortes, P. F. Mastinu, M. A. Millán-Callado, L. A. Damone, D. Macina, Carlos Guerrero, C. Domingo-Pardo, A. Kimura, A. Casanovas, R. Garg, P. Torres-Sánchez, S. Bennett, M. Bacak, A. Stamatopoulos, A. Masi, Emilio Andrea Maugeri, L. Cosentino, J. L. Tain, D. G. Jenkins, Kathrin Göbel, Y. Kadi, F. Gunsing, I. Duran, M. Kokkoris, D. Bosnar, Jan Heyse, E. Pirovano, S. Urlass, M. A. Cortés-Giraldo, E. Jericha, Claudia Lederer-Woods, Cristian Massimi, B. Thomas, Deniz Kurtulgil, V. Alcayne, R. Vlastou, Rene Reifarth, Paolo Finocchiaro, E. Berthoumieux, Dorothea Schumann, J. M. Quesada, Y. Kopatch, L. Tassan-Got, Sergio Cristallo, C. Rubbia, Q. Ducasse, V. Michalopoulou, F. Mingrone, F. Calviño, E. Mendoza, J. Perkowski, V. Variale, Peter Schillebeeckx, Dimitri Rochman, Arnd R. Junghans, S. Heinitz, C. Petrone, I. Ferro-Gonçalves, A. S. Brown, P. M. Milazzo, B. Fernández-Domíngez, A. Oprea, Ignacio Porras, D. Cano-Ott, A. Sekhar, M. Diakaki, Maurizio Busso, Ariel Tarifeño-Saldivia, S. J. Lonsdale, J. Lerendegui-Marco, S. Amaducci, Alexandru Negret, F. Käppeler, V Babiano-Suarez, A. Manna, J. Andrzejewski, F. Cerutti, L. Caballero, Simone Gilardoni, U. Jiri, Javier Praena, Diego Vescovi, A. Musumarra

Publikováno v: EPJ Web Conf.
2019 International Conference on Nuclear Data for Science and Technology
2019 International Conference on Nuclear Data for Science and Technology, May 2019, Beijing, China. pp.07001, ⟨10.1051/epjconf/202023907001⟩
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
idUS: Depósito de Investigación de la Universidad de Sevilla
Universidad de Sevilla (US)
Digibug: Repositorio Institucional de la Universidad de Granada
Universidad de Granada (UGR)
European Physical Journal Web of Conferences 239(2020), 07001
Digibug. Repositorio Institucional de la Universidad de Granada
EPJ Web of Conferences, Vol 239, p 07001 (2020)

New measurements of the7Be(n,α)4He and7Be(n,p)7Li reaction cross sections from thermal to keV neutron energies have been recently performed at CERN/n_TOF. Based on the new experimental results, astrophysical reaction rates have been derived for both

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4838dfb8f1522c0b5784685fba436641
http://cds.cern.ch/record/2773394

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Experimental setup and procedure for the measurement of the $^7$Be(n,p)$^7$Li reaction at n_TOF

Autor: A. Oprea, M. Krtička, J. Heyse, P. Ferreira, G. Bellia, T. Martinez, A. Musumarra, G. Cortes, M. Sabaté-Gilarte, G. Tagliente, J. Billowes, M. S. Robles, Ariel Tarifeño-Saldivia, S. J. Lonsdale, M. Diakaki, G. Vannini, Alexandru Negret, Juliana Schell, F. Käppeler, R. Nolte, Y. H. Chen, S. Heinitz, Karl Johnston, F. Mingrone, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, A. Casanovas, M. Bacak, Alfredo Ferrari, E. A. Maugeri, S. Warren, V. Variale, D. Radeck, E. Berthoumieux, M. Mastromarco, C. Lederer, Carlos Guerrero, K. Göbel, E. Mendoza, P. Kavrigin, J. Lerendegui-Marco, A. Manna, V. Furman, Anton Wallner, I. F. Gonçalves, N. V. Sosnin, N. Kivel, A. Kalamara, J. Balibrea, F. Gunsing, E. Griesmayer, L. A. Damone, E. Jericha, T. Glodariu, Paolo Finocchiaro, Annamaria Mazzone, Petar Žugec, Nicola Colonna, A. Kimura, T. Wright, J. A. Ryan, A. Masi, E. Dupont, P. M. Milazzo, L. Audouin, D. G. Jenkins, A. S. Brown, J. Marganiec, I. Duran, Maurizio Piscopo, L. Cosentino, P. F. Mastinu, I. Porras, A. Saxena, Cristian Massimi, R. Dressler, M. A. Cortés-Giraldo, Deniz Kurtulgil, P. Schillebeeckx, P. V. Sedyshev, Mario Barbagallo, D. Schumann, Hideo Harada, E. Leal-Cidoncha, A. Gawlik, C. Weiss, R. Vlastou, Thomas Rauscher, B. Fernández-Domínguez, Damir Bosnar, Y. Kadi, N. Patronis, S. Valenta, E. González-Romero, Marco Calviani, A. G. Smith, M. Dietz, Philip Woods, J. L. Tain, A. R. García, A. Stamatopoulos, M. Kokkoris, F. Bečvář, Alfio Pappalardo, Alberto Mengoni, F. Calviño, H. Leeb, D. Macina, J. Perkowski, O. Aberle, P. Vaz, Alberto Ventura, Rene Reifarth, E. Chiaveri, J. M. Quesada, L. Tassan-Got, D. Cano-Ott, Sergio Cristallo, A. Pavlik, C. Domingo-Pardo, S. Amaducci, J. G. Martins-Correia, Javier Praena, S. Lo Meo, M. Caamaño, F. Cerutti, Simone Gilardoni, R. Cardella

Publikováno v: Nucl.Instrum.Meth.A
Nucl.Instrum.Meth.A, 2018, 887, pp.27-33. ⟨10.1016/j.nima.2017.12.025⟩
Nucl.Instrum.Meth.A, 2018, 887, pp.27-33. 〈10.1016/j.nima.2017.12.025〉
2018, ' Experimental setup and procedure for the measurement of the Be-7(n,p)Li-7 reaction at n_TOF ', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 887, pp. 27-33 . https://doi.org/10.1016/j.nima.2017.12.025
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume 887
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
Digibug. Repositorio Institucional de la Universidad de Granada
Billowes, J, Ryan, J, Smith, A, Sosnin, N, Wright, T & et al 2018, ' Experimental setup and procedure for the measurement of the 7 Be(n,p) 7 Li reaction at n_TOF ', Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, vol. 887, pp. 27-33 . https://doi.org/10.1016/j.nima.2017.12.025

Following the completion of the second neutron beam line and the related experimental area (EAR2) at the n_TOF spallation neutron source at CERN, several experiments were planned and performed. The high instantaneous neutron flux available in EAR2 al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb266aca11e370285ef39ec3e830dbd8
https://hal.archives-ouvertes.fr/hal-01703872

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7Be(n, p)7Li Reaction and the Cosmological Lithium Problem: Measurement of the Cross Section in a Wide Energy Range at n_TOF at CERN

Autor: Damone, L., Bosnar, Damir, Žugec, Petar

Publikováno v: Physical Review Letters
Volume 121
Issue 4

We report on the measurement of the 7Be(n, p)7Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n_TOF facility at CERN. This reaction plays a key role in the lithium yiel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0059cc4c8875941c391add4a29bd378a
https://repozitorij.pmf.unizg.hr/islandora/object/pmf:8154/datastream/FILE0

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