Test measurement of 7Be(p,)8B with the recoil mass separator ERNA

R. Buompane; N. De Cesare; A. Di Leva; A. D’Onofrio; L. Gialanella; M. Romano; M. De Cesare; J. G. Duarte; Zs. Fülöp; L. Morales-Gallegos; Gy. Gyürky; L. R. Gasques; F. Marzaioli; G. Palumbo; G. Porzio; D. Rapagnani; V. Roca; D. Rogalla; M. Romoli; C. Sabbarese; D. Schürmann; F. Terrasi

doi:10.1140/epja/i2018-12522-6

EPJ

Test measurement of ⁷Be(p,

)⁸B with the recoil mass separator ERNA

R. Buompane¹^,2, N. De Cesare¹^,2, A. Di Leva³^,2, A. D’Onofrio¹^,2, L. Gialanella¹^,2^*, M. Romano³^,2, M. De Cesare⁴^,2^,1, J. G. Duarte¹^,2, Zs. Fülöp⁵, L. Morales-Gallegos¹^,2^,6, Gy. Gyürky⁵, L. R. Gasques⁷^,1^,2, F. Marzaioli¹^,2, G. Palumbo⁸^,2, G. Porzio¹^,2, D. Rapagnani⁹^,10^,1, V. Roca³^,2, D. Rogalla¹¹, M. Romoli², C. Sabbarese¹^,2, D. Schürmann¹^,2^,3 and F. Terrasi¹^,2

¹ Dipartimento di Matematica e Fisica, Università della Campania “L. Vanvitelli”, Viale Lincoln, 5, Caserta, Italy
² Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cinthia snc, Napoli, Italy
³ Dipartimento di Fisica “E. Pancini”, Università di Napoli “Federico II”, Via Cinthia snc, Napoli, Italy
⁴ Dipartimento di Metodologie e Tecnologie per le Osservazioni e Misure, Centro Italiano Ricerche Aerospaziali, Capua, Italy
⁵ Institute for Nuclear Research (MTA Atomki), H-4001, Debrecen, Hungary
⁶ SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK
⁷ Departamento de Física Nuclear, Instituto de Física da Universidade de São Paulo, São Paulo, SP, Brazil
⁸ Dipartimento di Economia, Management, Istituzioni, Laboratorio Chimico-Merceologico, Università di Napoli “Federico II”, Via Cinthia snc, Napoli, Italy
⁹ Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, Perugia, Italy
¹⁰ Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Perugia, Italy
¹¹ RUBION, Ruhr-Universität Bochum, Bochum, Germany

Received: 26 May 2017
Accepted: 27 April 2018
Published online: 5 June 2018

Abstract

⁷Be(p,

)⁸B has an important role in nuclear astrophysics, having a direct impact on both the high energy component of solar neutrinos and the ⁷Li abundance after the Big Bang Nucleosynthesis. All direct measurements providing useful information on this reaction so far used the same approach, i.e. a proton beam on a radioactive ⁷Be target. The overall precision and accuracy of the estimate of the astrophysical rate of this reaction are limited by the discrepancy between the results of existing measurements, possibly due to the complicated stoichiometry and beam induced deterioration of the radioactive targets. The ERNA (European Recoil separator for Nuclear Astrophysics) collaboration planned a new experiment in inverse kinematics exploiting the intense ⁷Be beam available at CIRCE (Center for Isotopic Research on Cultural and Environmental heritage), Caserta, Italy. The ⁸B recoils are produced in a windowless hydrogen gas target and detected after the efficient mass separation provided by ERNA. Here we present the commissioning of the experimental setup and a first cross section measurement at

keV.

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EPJ

Test measurement of ⁷Be(p,)⁸B with the recoil mass separator ERNA

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