| Article | |
| Report number | nucl-ex/0208005 |
| Title | Precision measurement of the $^{7}$Be(p, $\gamma$)$\,^{8}$B cross section with an implanted $^{7}$Be target |
| preprint title | A new precision measurement of the $^{7}$Be(p,$\gamma$) $\,^{8}$B cross section with an implanted $^{7}$Be target |
| Author(s) | Baby, L.T. (Weizmann Inst.) ; Bordeanu, C. (Weizmann Inst.) ; Goldring, G. (Weizmann Inst.) ; Hass, M. (Weizmann Inst.) ; Weissman, L. (Michigan State U., NSCL) ; Fedoseyev, V.N. (CERN) ; Koester, U. (CERN) ; Nir-El, Y. (Soreq Nucl. Res. Ctr.) ; Haquin, G. (Soreq Nucl. Res. Ctr.) ; Gaggeler, H.W. (PSI, Villigen) ; Weinreich, R. (PSI, Villigen) |
| Affiliation | (CERN) |
| Publication | 2003 |
| Imprint | 8 Aug 2002 |
| Number of pages | 4 |
| Note | 4 Pages, 3 Figures |
| In: | Phys. Rev. Lett. 90 (2003) pp.022501 |
| DOI | 10.1103/PhysRevLett.90.022501 10.1103/PhysRevLett.92.029901 (erratum) |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE ; IS366 |
| Abstract | The 7Be(p,gamma)8B reaction plays a central role in the evaluation of solar neutrino fluxes. We report on a new precision measurement of the cross section of this reaction, following our previous experiment with an implanted 7Be target, a raster scanned beam and the elimination of the backscattering loss. The new measurement incorporates a more abundant 7Be target and a number of improvements in design and procedure. The point at Elab=991 keV was measured several times under varying conditions, yielding a value of S17(Ec.m. =850 keV) = 24.0(5) eV b. Measurements were carried out at lower energies as well. Due to the precise knowledge of the implanted 7Be density profile it was possible to reconstitute both the off- and on resonance parts of the cross section and to obtain from the entire set of measurements an extrapolated value of S17(0)=21.2(7) eV b. |
Corresponding record in: Inspire
Email contact: [email protected]
Record creato 2002-08-09, modificato l'ultima volta il 2024-05-08
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