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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
Physical Review Letters, 121 (2018), 4; 042701. https://doi.org/10.1103/PhysRevLett.121.042701
(n_TOF Collaboration) Damone, L.; ...; Bosnar, Damir; ...; Žugec, Petar

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Damone, L., Bosnar, D. i Žugec, P. (2018). 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. Physical Review Letters, 121. (4). doi: 10.1103/PhysRevLett.121.042701

Damone, L., et al. "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." Physical Review Letters, vol. 121, br. 4, 2018. https://doi.org/10.1103/PhysRevLett.121.042701

Damone, L., Damir Bosnar i Petar Žugec. "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." Physical Review Letters 121, br. 4 (2018). https://doi.org/10.1103/PhysRevLett.121.042701

Damone, L., Bosnar, D. i Žugec, P. (2018) '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', Physical Review Letters, 121(4). doi: 10.1103/PhysRevLett.121.042701

Damone L, Bosnar D, Žugec P. 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. Physical Review Letters [Internet]. 2018. [pristupljeno 18.04.2024.];121(4). doi: 10.1103/PhysRevLett.121.042701

L. Damone, D. Bosnar i P. Žugec, "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", Physical Review Letters, vol. 121, br. 4, 2018. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:439649. [Citirano: 18.04.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:439649
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Naslov (engleski)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
AutorL. Damone
Autor
...
AutorDamir Bosnar
MBZ: 134936
Autor
...
AutorPetar Žugec
MBZ: 326085
Kolaboracijan_TOF Collaboration
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
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 yield of the big bang nucleosynthesis (BBN) for standard cosmology. The only two previous time-of-flight measurements performed on this reaction did not cover the energy window of interest for BBN, and they showed a large discrepancy between each other. The measurement was performed with a Si telescope and a high-purity sample produced by implantation of a 7Be ion beam at the ISOLDE facility at CERN. While a significantly higher cross section is found at low energy, relative to current evaluations, in the region of BBN interest, the present results are consistent with the values inferred from the time-reversal 7Li(p, n)7Be reaction, thus yielding only a relatively minor improvement on the so-called cosmological lithium problem. The relevance of these results on the near-threshold neutron production in the p+7Li reaction is also discussed.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review Letters
Brojčani podacivol. 121, br. 4, 042701
p-ISSN0031-9007
e-ISSN1079-7114
DOIhttps://doi.org/10.1103/PhysRevLett.121.042701
URN:NBNurn:nbn:hr:217:439649
Datum objave publikacije2018
URL dokumentahttps://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.042701
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Imenovanje 4.0 međunarodna (CC BY 4.0)
Javna napomena© 2018 American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Received 16 March 2018; revised manuscript received 9 May 2018; published 24 July 2018.
Datum i vrijeme pohrane2020-02-29 22:06:13