| Article | |
| Report number | nucl-ex/0212011 |
| Title | A new measurement of the proton capture rate on $^{7}$Be and the S$_{17}$(0) factor |
| 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) ; Koster, 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 | 11 Dec 2002 |
| Number of pages | 14 |
| Note | Comments: Full details of the nucl-ex/0208005, PRL 90, 022501 (2003); 17 figures Full details of the nucl-ex/0208005, PRL 90, 022501 (2003); 17 figures |
| In: | Phys. Rev. C 67 (2003) pp.065805 |
| DOI | 10.1103/PhysRevC.67.065805 10.1103/PhysRevC.69.019902 |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE ; IS366 |
| Abstract | The $^{7}$Be(p, $\gamma$) $ \,^{8}$B 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 target, a raster scanned beam and the elimination of back-scattering losses. The new measurement incorporates a higher activity $^{7}$Be target and a number of improvements in design and procedure. The cross section at Ec.m. = 850 keV was measured several times under varying experimental conditions, yielding a value of S$_{17}$(Ec.m.=850 keV) = 24.0 $\pm$ 0.5 eV b. Measurements were carried out at lower energies as well. We obtain from the entire set of measurements an extrapolated value of S$_{17}$(0) = 21.2 $\pm$ 0.7 eV b. |
Corresponding record in: Inspire
Email contact: lagy@wisemail.weizmann.ac.il
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