6533b825fe1ef96bd1281e87

RESEARCH PRODUCT

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

Z. ElemeM. MastromarcoM. MastromarcoMassimo BarbagalloMassimo BarbagalloI. KnapovaAnton WallnerS. ValentaRugard DresslerP. VazM. KrtičkaMarco CalvianiA. GawlikG. VanniniG. VanniniA. G. SmithA. TsinganisT. MartinezV. FurmanT. J. WrightAlberto VenturaM. DietzLuciano PiersantiM. CaamañoNicola ColonnaP. J. WoodsI. LadarescuVasilis VlachoudisE. González-romeroF. OgállarM. Sabaté-gilarteM. Sabaté-gilarteP. J. DaviesN. PatronisA. K. SaxenaArnaud FerrariL. AudouinN. V. SosninAnnamaria MazzonePetar ŽUgecG. TaglienteD. Ramos DovalO. AberleE. ChiaveriE. ChiaveriE. ChiaveriJ. Moreno-sotoAlberto MengoniE. DupontA. PavlikP. SprungG. CortesP. F. MastinuM. A. Millán-calladoL. A. DamoneL. A. DamoneD. MacinaCarlos GuerreroC. Domingo-pardoA. KimuraA. CasanovasR. GargP. Torres-sánchezS. BennettM. BacakM. BacakM. BacakA. StamatopoulosA. MasiEmilio Andrea MaugeriL. CosentinoJ. L. TainD. G. JenkinsKathrin GöbelY. KadiF. GunsingI. DuranM. KokkorisD. BosnarJan HeyseE. PirovanoS. UrlassS. UrlassM. A. Cortés-giraldoE. JerichaClaudia Lederer-woodsCristian MassimiCristian MassimiB. ThomasDeniz KurtulgilV. AlcayneR. VlastouRene ReifarthPaolo FinocchiaroE. BerthoumieuxDorothea SchumannJ. M. QuesadaY. KopatchL. Tassan-gotL. Tassan-gotL. Tassan-gotSergio CristalloC. RubbiaQ. DucasseV. MichalopoulouV. MichalopoulouF. MingroneF. CalviñoE. MendozaJ. PerkowskiV. VarialePeter SchillebeeckxDimitri RochmanArnd R. JunghansS. HeinitzC. PetroneI. Ferro-gonçalvesA. S. BrownP. M. MilazzoB. Fernández-domíngezA. OpreaIgnacio PorrasD. Cano-ottA. SekharM. DiakakiMaurizio BussoAriel Tarifeño-saldiviaS. J. LonsdaleJ. Lerendegui-marcoS. AmaducciAlexandru NegretF. KäppelerV Babiano-suarezA. MannaA. MannaJ. AndrzejewskiF. CeruttiL. CaballeroSimone GilardoniU. JiriJavier PraenaDiego VescoviA. Musumarra

subject

PhysicsRange (particle radiation)Large Hadron Collidern_TOF 7Be big bang nucleosynthesis cosmological lithium problem010308 nuclear & particles physicsPhysicsQC1-999chemistry.chemical_element[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural sciencesReaction rateNuclear physicsBig Bang nucleosynthesischemistry13. Climate action0103 physical sciencesThermalNeutronLithiumNuclear Physics - Experiment010306 general physicsNuclear Experiment

description

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 reactions, including a proper evaluation of their uncertainties in the thermal energy range of interest for big bang nucleosynthesis studies. The new estimate of the7Be destruction rate, based on these new results, yields a decrease of the predicted cosmological7Li abundance insufficient to provide a viable solution to the cosmological lithium problem.

yearjournalcountryeditionlanguage
2019-05-19
10.1051/epjconf/202023907001http://cds.cern.ch/record/2773394