A new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$

A novel scheme for measuring the cross section of the 7Be(p,gamma)8B reaction, the major source of high energy neutrinos from t he sun, is presented. The scheme involves a strictly uniform particle beam and overcomes some of the recognized experimental uncertainties of previous measurements. A new m...

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Detalles Bibliográficos
Autores principales: Weissman, L, Broude, C, Goldring, G, Hadar, R, Hass, M, Schwamm, F, Shaanan, M
Lenguaje:eng
Publicado: 1998
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1016/S0375-9474(98)00811-2
http://cds.cern.ch/record/345586
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author Weissman, L
Broude, C
Goldring, G
Hadar, R
Hass, M
Schwamm, F
Shaanan, M
author_facet Weissman, L
Broude, C
Goldring, G
Hadar, R
Hass, M
Schwamm, F
Shaanan, M
author_sort Weissman, L
collection CERN
description A novel scheme for measuring the cross section of the 7Be(p,gamma)8B reaction, the major source of high energy neutrinos from t he sun, is presented. The scheme involves a strictly uniform particle beam and overcomes some of the recognized experimental uncertainties of previous measurements. A new measurement of sigma[7Li(d,p)8Li] has been carried out using this setup,and the present value of sigma[7Li(d,p)8Li] = 155(8) mbarn at the top of the E_d(lab.)= 776 keV resonance is compared to previous measurements. A new issue regarding both the (d,p) and (p,gamma) reactions has been examined: reaction-product nuclei which are backscattered out of the target. Measurements and simulations carried out in the course of this investigation are presented and discussed in the context of possible effects on the measured cross sections of these reactions.
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institution Organización Europea para la Investigación Nuclear
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spelling cern-3455862019-09-30T06:29:59Zdoi:10.1016/S0375-9474(98)00811-2http://cds.cern.ch/record/345586engWeissman, LBroude, CGoldring, GHadar, RHass, MSchwamm, FShaanan, MA new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$Astrophysics and AstronomyA novel scheme for measuring the cross section of the 7Be(p,gamma)8B reaction, the major source of high energy neutrinos from t he sun, is presented. The scheme involves a strictly uniform particle beam and overcomes some of the recognized experimental uncertainties of previous measurements. A new measurement of sigma[7Li(d,p)8Li] has been carried out using this setup,and the present value of sigma[7Li(d,p)8Li] = 155(8) mbarn at the top of the E_d(lab.)= 776 keV resonance is compared to previous measurements. A new issue regarding both the (d,p) and (p,gamma) reactions has been examined: reaction-product nuclei which are backscattered out of the target. Measurements and simulations carried out in the course of this investigation are presented and discussed in the context of possible effects on the measured cross sections of these reactions.astro-ph/9802136oai:cds.cern.ch:3455861998
spellingShingle Astrophysics and Astronomy
Weissman, L
Broude, C
Goldring, G
Hadar, R
Hass, M
Schwamm, F
Shaanan, M
A new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$
title A new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$
title_full A new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$
title_fullStr A new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$
title_full_unstemmed A new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$
title_short A new measurement of the $^{7}Li(d,p)^{8} Li$ cross section and consequences for $^{7}Be(p,\gamma)^{8}B$
title_sort new measurement of the $^{7}li(d,p)^{8} li$ cross section and consequences for $^{7}be(p,\gamma)^{8}b$
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1016/S0375-9474(98)00811-2
http://cds.cern.ch/record/345586
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